HP StorageWorks
XP24000/XP20000 External Storage
Software User Guide
Abstract
This guide describes how to connect and map external storage to HP StorageWorks XP24000/XP20000 storage systems.
Topics include instructions for setting ports and paths, mapping volumes, maintaining connections, using spreadsheets to map
external volumes, and mapping remote command devices. The intended audience is a storage system administrator or authorized
service provider with independent knowledge of HP StorageWorks XP storage systems and HP StorageWorks Remote Web
Console.
HP Part Number: T5206-96015
Published: May 2011
Edition: Fifteenth
Contents
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Relationship between the Serial Number and the AMS/WMS Model.....................................135
Relationship between the WWN of the Port and Controller (AMS/WMS)................................135
Sun StorEdge 6120/6320......................................................................................................147
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1 Overview of HP StorageWorks XP External Storage
Software
This chapter provides an overview of XP External Storage.
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Unless otherwise specified, the term storage system in this document refers to the following disk
arrays:
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HP StorageWorks XP24000 Disk Array
HP StorageWorks XP20000 Disk Array
The GUI illustrations in this guide were created using a Windows computer with the Internet Explorer
browser. Actual windows may differ depending on the operating system and browser used. GUI
contents also vary with licensed program products, storage system models, and firmware versions.
XP External Storage
XP External Storage provides the virtualization of a multi-tiered storage area network comprised
of heterogeneous storage systems. It enables the operation of multiple storage systems connected
to an HP XP storage system as if they were all one storage system and provides common
management tools and software. The shared storage capacity comprised of external storage
volumes can be used with storage system-based software for data migration and replication, as
well as any host-based application. Combined with HP StorageWorks XP Auto LUN Software, XP
External Storage provides a data lifecycle management solution across multiple tiers of storage.
The key features and benefits of XP External Storage include:
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Virtualizes external storage attached to the XP storage system
Enables deployment of multi-tiered storage
Integrates heterogeneous systems
Creates extended storage capacity independent of physical location
Creates new opportunities based on enhanced capability of existing business continuity
software and management tools to manage external storage devices
Unifying Copy Operations between Different Storage Systems
When you copy data between different storage systems, the copy operations are usually different
depending on the storage system that you use.
If you install XP External Storage, you can perform the following copy operations in the same way
as when you copy data between volumes in the XP storage system.
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To copy data between a volume in the XP storage system and a volume in an external storage
system.
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To copy data between a volume in an external storage system and a volume in another external
storage system.
XP External Storage
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Figure 1 Unifying Copy Operations between Different Storage Systems
Unifying Connections from a Host to Different Storage Systems
When a system has multiple storage systems, a host usually needs to connect all storage systems.
When a system administrator configures the connections from a host to volumes, they need to
follow the different instructions depending on the storage systems.
If you install XP External Storage, a system administrator only needs to configure the connection
from a host to the XP storage system. After the configuration is completed, a host can manipulate
volumes in the external storage system in the same way as volumes in the XP storage system.
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Overview of HP StorageWorks XP External Storage Software
Figure 2 Unifying Connections from a Host to Different Storage Systems
Unifying Connections from a Host to Different Storage Systems
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2 About XP External Storage Operations
This chapter explains the functions and the applications of XP External Storage.
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Connecting External Storage Systems
XP External Storage enables you to use HP XP storage systems and other vendors' storage systems
(such as IBM or EMC) as connectable external storage systems. Hosts will recognize these volumes
as internal volumes of the original XP storage system. From this section onward, the original storage
system is called local storage system and a connected storage system is called the external storage
system.
External volume mapping is required for manipulating external volumes from a local storage system.
Mapping means assigning management numbers to the external volumes. These management
numbers are required for manipulating external volumes from a local storage system. By assigning
management numbers to the external volumes, the system administrator will be able to manipulate
not only internal volumes of a local storage system but also external volumes using Remote Web
Console. The management numbers consist of external volume group number - sequential number
(for example, E2-1, E50-3).
Figure 3 (page 13) shows the concept of a local storage system and an external storage system
that are connected by XP External Storage. In the figure, the external storage system is connected
to the external port of the local storage system via a switch using the Fibre Channel interface. The
external port is a kind of port attribute that is used for XP External Storage. The external volumes
are mapped as internal volumes.
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About XP External Storage Operations
Figure 3 Concept of XP External Storage
By mapping an external volume as an internal volume using XP External Storage as shown in
Figure 3 (page 13), it becomes possible to operate the external volume using Remote Web Console
as if it is a volume in the local storage system.
XP External Storage Components
Systems using XP External Storage usually contain the following components:
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Local storage system
External storage system
Remote Web Console computer
XP External Storage
External volume
Internal volume, which is a virtual representation of an external volume
LDEVs (Logical Devices) in an external volume
Cross-subsystem path
Mapping path
Figure 4 (page 14) illustrates the relations of the XP External Storage components.
XP External Storage Components
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Figure 4 XP External Storage Components
This section describes the details on the storage systems, cross-subsystem paths, volumes and
Storage Systems and Cross-subsystem Paths
Before using XP External Storage, connect the Fibre Channel port of the local storage system to
the external storage system port with the fiber cable. The route between the ports that are connected
with the cable, is called the cross-subsystem path.
The Fibre Channel port of the local storage system is set to connect to a host by default. The Fibre
Channel port can be connected to an external storage system if you change the attribute of the
Fibre Channel port to make it an external port. The external storage system port can be a target
port, that is, a port that would be connected to a host if the storage system were not being used
as external storage.
Two or more external storage systems can be connected to one external port. You can add an
external storage system to a port that is being used by another external storage system.
To manipulate XP External Storage, you need to install XP External Storage using the license key.
Use your Remote Web Console computer to access the local storage system via SVP (web server)
and perform the XP External Storage operations.
Volumes and Mapping Paths
Mapping is necessary to manipulate an external volume from the local storage system. The system
14
About XP External Storage Operations
local storage system. After the mapping, you can manipulate the external volume from the local
storage system in the same way as manipulating an internal volume.
When external volumes in external storage systems are mapped as internal volumes in your storage
systems, the external volumes can be accessed and copied by hosts connecting to your storage
systems, but not by hosts connecting to the external storage systems.
This document sometimes uses the term external volume or mapped external volume to mention an
internal volume is a virtual representation of an external volume.
When you perform mapping, a path is automatically created between an internal volume and an
external volume. This path is called a mapping path, which connects one volume with another
volume. A cross-subsystem path is a part of a mapping path.
- from the host or other program products, the system administrator needs to create LDEVs in the
time of mapping, or use the Virtual LVI/LUN (VLL) function on the internal volume where an external
volume is mapped after mapping. The LDEVs created by these methods are called LDEVs in the
external volume in this document. These LDEVs are usually called external volumes in other
documents.
An external volume corresponds to a VLL VDEV (Virtual Device). An LDEV in the external volume
corresponds to a VLL LDEV. Therefore, you can use the VLL function to create custom-sized volumes
in an external volume after mapping, in the same way as creating custom-sized volumes in the
normal internal volumes. For details on VDEVs and LDEVs, see the HP StorageWorks
XP24000/XP20000 Virtual LVI/LUN (VLL) and Volume Shredder User Guide.
XP External Storage Operations
Use XP External Storage to execute the following operations.
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Preparing to use external volumes
You can map external volumes, set port attributes, and set cross-subsystem paths. For details,
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Preparing to manipulate the power supply of the storage systems
You must follow specific procedures to manipulate the power supply of the storage systems
when external volumes are used. To turn on or off the power supply of the external storage
system after starting to use the external volumes, you need to execute the commands of XP
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Setting up and removing the cross-subsystem paths
When you set up or remove the path (cable) connecting the storage systems, you need to use
XP External Storage to make settings on the path. For details on removal, see “Disconnecting
Connection Status and Resuming External Volume Operation” (page 93). For details on setup,
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Referring to the status of external volumes
You can see the status and the configuration of external volumes. For details, see “Checking
Stopping the use of external volumes
You can cancel mapping of external volumes. For details, see “Deleting the External Volume
XP External Storage Operations
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Using spreadsheets to map external volumes
XP External Storage supports Configuration File Loader spreadsheets. These spreadsheets
allow you to configure the mapping of multiple external volumes at the same time, which is
efficient when mapping large numbers of volumes. For details, see “Using Spreadsheets for
Setting the remote command device
By using the remote command device, you can manipulate volumes in the external storage
system from RAID Manager on host computers. For details, see “Remote Command Devices”
Configuring XP External Storage
Before configuring the XP External Storage settings, answer the following:
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Which ports can be connected to external storage systems? (see “Choosing the External Port”
Which external storage system and volumes should be mapped as the internal volumes? (see
How will you configure external volume groups? (see “Registering a Volume to an External
What external volume attributes will be configured? (see “Configuring External Volume
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How will you make volumes usable from the local storage system? (see “Connecting Mainframe
Each item is explained in the following sections.
Choosing the External Port
The port used for XP External Storage must be set as the external port. When the external storage
system is connected to the external port of the local storage system, you can view the information
on the external storage system from the Remote Web Console computer. The external storage
system cannot be connected to ports other than the external port.
In order to set the port attribute to external, any LU paths set to the port must be released. The
attribute of the port where LU paths are already set cannot be changed to external. Therefore, you
must identify ports whose attributes can be changed to external before starting the XP External
Storage operations.
The ports whose attributes are set for remote copy software (for example, RCU target, initiator) or
other features cannot be used as external ports for XP External Storage. In addition, change the
port attribute to external if the port attribute is set to other than external.
For instructions on configuring port attributes, see “Setting Port Attribute for Local Storage System”
Choosing and Mapping External Volumes
When connecting an external storage system to an external port, volumes in the external storage
system (external volumes) become available for mapping as volumes in the local storage system
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About XP External Storage Operations
(internal volumes). Identify the volumes in each external storage system that should be mapped as
internal volumes.
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You cannot access the data that is stored in an external volume beyond the maximum available
capacity.
For example, if an external volume of 100 GB was mapped as an internal volume of 70 GB,
then 30 GB of the external volume would not be accessible from the local storage system side.
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You cannot map an external volume whose capacity is smaller than the minimum available
capacity.
For example, you cannot map an external volume of 10 GB as an internal volume requiring
at least 30 GB.
The maximum or minimum available capacity of an external volume depends on the emulation
type that is set when the volume is mapped. See “Required Volume Capacity for Each Emulation
Type” (page 152) for the capacity of the external volume for each emulation type. For the maximum
Registering a Volume to an External Volume Group (ExG)
When you map an external volume as an internal volume, you need to register the external volume
to an external volume group.
External volumes, which are set by XP External Storage, can be classified into groups by usage.
Any group of this type is called an external volume group (ExG). For instance, you can register
multiple volumes in one external storage system to one external volume group. Or you can register
the volumes in one external volume group and manage them in block, even though the data you
want to manage in a lump is stored in volumes in the different external storage systems.
You need to assign numbers to external volume groups. See “XP External Storage Requirements”
(page 37) for details on a maximum number of external volume groups, or a maximum number of
volumes to be registered in one external volume group.
Configuring External Volume Attributes
When you map an external volume as an internal volume, you set the attributes of the external
volume. External volume attributes can be set using the mapping policy or the Set External Volume
Parameter dialog box of XP External Storage. For details on the mapping policy, see “Choosing
Mapping Policy” (page 26). For details on the Set External Volume Parameter dialog box, see
The attributes of the external volume are as follows:
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Emulation type
Select an emulation type for the mapped external volume from the list.
The emulation type OPEN-V must be selected if, after the mapping, you are planning to use
the existing data in the external volume from the local storage system. For example, to migrate
the existing data in the external volume to the local storage system volume, set the OPEN-V
emulation type when the external volume is mapped.
If you select the emulation type other than OPEN-V, the volume requires a specific area to be
provided for management data. Once this area is provided, volume capacity after the mapping
becomes less than the actual external volume capacity for the area (volume). For details on
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Cache Mode (Enable or Disable)
Cache mode specifies whether the write data from the host to the external storage system is
propagated synchronously (Disable) or asynchronously (Enable). By default, cache mode is
Configuring XP External Storage
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set to Disable. All I/O to and from the local storage system (either Enable or Disable) always
uses cache mode. Write operations are always backed up in duplex cache.
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If you select Enable, after receiving the data into the local storage system cache memory
, the local storage system signals the host that an I/O operation has completed and then
asynchronously destages the data to the external storage system.
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When emulating OPEN volumes and selecting Disable, the local storage system signals
the host that an I/O operation has completed only after the local storage system has
synchronously written the data to the external storage system. When emulating mainframe
volumes, when you select Disable, after receiving the data into the local storage system
cache memory, the local storage system signals the host that an I/O operation has
completed and then asynchronously destages the data to the external storage system.
If you perform the Cache Residency Manager operation on an external volume with
Cache Mode set to Disable, the bind mode of Cache Residency Manager cannot be
specified. For Cache Residency Manager operations, see the HP StorageWorks
XP24000/XP20000 Cache Residency Manager User Guide.
When you set the cache mode, note the following:
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Data that is not written by the host (for example, data written by HP StorageWorks XP
Continuous Access Software) is asynchronously destaged to the external storage system
regardless of the Cache Mode setting.
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If you set the emulation type for a mainframe system (such as 3390-x), data that is written
by a host using a command such as Format Write is asynchronously destaged to the
external storage system regardless of the Cache Mode setting. Data that is written by a
host using a command such as Update Write is destaged to the external storage system
as configured in the Cache Mode setting.
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Inflow Control (Enable or Disable)
Inflow control specifies whether the writing operation to the cache memory is stopped (Enable)
or continued (Disable) when the writing operation to the external volume is impossible. By
default, inflow control is set to Disable.
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If you select Enable, the writing operation to cache is stopped and the I/O from the host
is not accepted when the writing operation to the external volume is impossible.
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If you select Disable, the I/O from the host during the retry operation is written to the
cache memory even after the writing operation to the external volume is impossible. Once
the writing operation to the external volume becomes normal, all the data in the cache
memory is written to the external volume (all the data is destaged).
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CLPR
When the cache memory is partitioned using HP StorageWorks XP Disk/Cache Partition
Software, configure a cache logical partition (CLPR) to access the mapped volume. It is strongly
recommended that you place External Storage array groups in a CLPR other than CLPR0. See
the HP StorageWorks XP24000/XP20000 Disk/Cache Partition User Guide for detailed
information on CLPR.
Cross-subsystem Paths
A cross-subsystem path is a route from a local storage system port to an external storage system
port. To prepare for possible failures of the cable, the switch, or the channel processor, HP
recommends that you create redundant cross-subsystem paths. This redundancy allows you to
continue performing the I/O operations to the external volumes when you maintain the cable. You
can set up to eight paths.
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About XP External Storage Operations
If two or more external volumes use the same redundant cross-subsystem paths, these external
volumes can be a group. This group is called a path group. In the redundant cross-subsystem paths,
the cross-subsystem path that has the highest priority is called the primary path. The cross-subsystem
paths other than the primary path are called alternate paths.
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Setting of the path groups
A path group is automatically set when you map the external volume or when you change a
path group by using spreadsheets. You cannot set a new path group by itself. For more
information about changing a path group by using spreadsheets, see “Changing Path Group”
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Setting of cross-subsystem paths
Use fiber cables to establish multiple paths between the external storage system and the local
storage system. At this time, connect to the external storage system from a different cluster
port of the local storage system.
If multiple paths are established between the two storage systems, the starting points of the
paths (that is, external ports of the local storage system) and the ending points (that is, WWNs
showing the ports of the external storage system) will be displayed in a dialog box when you
map an external volume. In this dialog box, you can set cross-subsystem paths by selecting
the starting points and the ending points of the paths according to the actual cable connections.
For details on how to set cross-subsystem paths, see “Configure Cross-subsystem Paths Dialog
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Setting of redundant cross-subsystem paths
You can set redundant cross-subsystem paths (add alternate paths) when you set the
cross-subsystem paths. You can also add an alternate path or change the priority after
completing the mapping of the external volume (see “Setting the Cross-subsystem Paths”
Path Mode
Path mode is either Single mode or Multi mode, depending on the connected external storage
system.
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In the Single mode, only the path with the highest priority (primary path) is used to execute
the I/O to the external volume. When an error occurs in the primary path, the path with the
second highest priority is used.
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In the Multi mode, all of the set paths are used at the same time. The multiple paths are used
to execute the I/Os to the external volume thus distributing the work load (round-robin
processing).
For example, when a volume in the external storage system with the path mode of the Single mode
is mapped as an internal volume using XP External Storage, the host I/O operations to the external
volume are enabled using the primary path set in the mapping operation. The path is automatically
switched to the alternate path when the primary path set in mapping operation cannot be used
due to, for instance, maintenance operation in the storage system, or a failure in the channel
processor. Because the path is switched to the alternate path, the I/O operation to the external
volume continues even though an error occurred in the original path.
When the primary path cannot be used for three minutes continuously, the path is switched to the
alternate path.
Examples of Alternate Paths
Figure 5 (page 20) illustrates an example of setting an alternate path. External storage system
ports, WWN A and WWN B, are connected to CL1-A and CL2-A respectively, which are set to
the external ports in the local storage system. You need to specify the port of a different cluster in
Configuring XP External Storage
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the local storage system for the alternate path. Therefore, CL1 port and CL2 port are specified as
shown in the figure.
Figure 5 Example of Alternate Path Setting
Figure 6 (page 20) illustrates an example of setting an alternate path when a switch is used. Two
ports are specified in the local storage system, and connected to the ports in the external storage
system through the switch. In this case, two ports of different clusters are specified in the local
storage system. Therefore, the setting of the alternate path is enabled.
Figure 6 Example of Available Alternate Path Setting
However, one port is specified in the local storage system, and two ports are specified in the
external storage systems over the switch. This configuration is not recommended because two ports
of different clusters need to be set in the local storage system for alternate path settings in XP
External Storage.
20 About XP External Storage Operations
Figure 7 Example of Unavailable Alternate Path Setting
Examples of Switching I/O Execution Paths to Alternate Paths
This section describes examples of the performance when the I/O execution path is switched to
the alternate path for each path mode as follows:
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When the path mode is Multi mode
When the path mode is Single mode
When the path mode is Single mode and there is at least one alternate path in the Standby
status
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When the path mode is Multi mode
Figure 8 (page 22) shows an example of when the path mode is Multi mode. When an error
occurs in one path, I/Os are executed using the paths other than the error path.
As you restore the error path, the use of the restored path is automatically resumed.
Configuring XP External Storage
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Figure 8 When the Path Mode is Multi Mode
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When the path mode is Single mode
Figure 9 (page 23) shows an example of when the path mode is Single mode. When an error
occurs in the path that is being used for I/Os, the I/O execution path is switched to the path
with the second highest priority.
As you restore the path with the priority higher than the currently used path, the I/O execution
path is automatically switched to the restored path that has the highest priority.
22 About XP External Storage Operations
Figure 9 When the Path Mode is Single Mode
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When the path mode is Single mode and there is at least one alternate path in the Standby
status
paths in Standby status only.
When an error occurs in the path that is being used for I/Os, the I/O execution path is
24)). If there is no path in Normal status other than the path that is being used for I/Os, the
status of the path in Standby status is automatically changed to Normal, and the I/O execution
As you restore the path with the highest priority, note that only when the external storage
system is an EVA storage system, the I/O execution path is switched back to the restored
highest priority path. In this case, the status of the path for which the status was changed to
Normal when the error occurred changes back to Standby.
Configuring XP External Storage 23
Figure 11 Single Mode with Alternate Paths in Standby Only
Connecting Mainframe Volumes
Mainframe volumes that pre-exist on an external storage system and are accessed by ESCON or
FICON channels cannot connect directly to the storage system as an external volume. The storage
system does not recognize these volumes because of Fibre Channel.
To use external volumes as mainframe volumes, there are two ways:
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Zero-format external volumes on the external storage system side, map the external volumes
to the internal volumes using XP External Storage on the local storage system side, and then
perform the Write to Control Blocks operation using the VLL function on the local storage system
side.
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Map the external volumes to the internal volumes using XP External Storage on the local storage
system side, and then format the mapped external volumes using the VLL function on the local
storage system side.
If you set the emulation type for the mainframe system (such as 3390) as you map the external
volume, the status of the mapped volume becomes Blockade after the mapping operation. After
the system administrator performs the Write to Control Blocks operation or formats the mapped
external volumes using the VLL function on the local storage system side, the mainframe host can
then access the new mainframe volume through the local storage system's ESCON or FICON
channels.
If you format the mapped volume of the external storage system from the external storage system
side, the existing data before formatting cannot be assured. When you use the mapped external
volume from the mainframe operating system, format the mapped volume from the local storage
system side.
Configuring XP External Storage 25
For the volume formatting and Write to Control Blocks operation procedures, see the HP
StorageWorks XP24000/XP20000 Virtual LVI/LUN (VLL) and Volume Shredder User Guide.
Connecting Open Systems Volumes
Open systems volumes in external storage system connect to and are recognized by the storage
system as open systems volumes, without requiring reformatting. Reformatting is not required
because the connection between the storage system and the external storage system is Fibre
Channel. If you need to initialize the data area for the volume, format the volume using the VLL
function. For the volume formatting operation procedure, see the HP StorageWorks
XP24000/XP20000 Virtual LVI/LUN (VLL) and Volume Shredder User Guide.
OPEN-V emulation is recommended because, in most cases, OPEN-V emulation provides the most
efficient use of storage and the best performance. Also, emulation types other than OPEN-V may
not retain existing data after being mapped.
Choosing Mapping Policy
Mapping policy is a list of settings of the necessary information for mapping the external volume.
By setting the mapping policy in advance, the setting at the time of mapping will be easier.
The default mapping policy is prepared in advance. You can change the values of the default
mapping policy.
Difference between Automatic Mapping and Manual Mapping
When you map the external volume, you need to configure:
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Cross-subsystem paths
External volume parameters
LDEV number to LDEVs in the external volume
SSID (storage system ID)
When you perform automatic mapping, users configure only cross-subsystem paths and all the
other settings are automatically made by XP External Storage according to the mapping policy.
When you perform manual mapping, users configure all the settings.
Automatic mapping maps all the external volumes found by volume discovery to internal volumes.
Automatic mapping requires fewer settings but you are not allowed to set different parameters for
each external volume or to specify an LDEV number for each LDEV. You can set the parameters
such as emulation type to the mapping policy in advance.
NOTE: In automatic mapping, external volumes are mapped in the order of the local storage
system recognizing. Therefore, the LDEV number is also specified in this order. Moreover, when
you copy external volumes with the program product for copying, the copy operation is performed
in the order of the LDEV number if you specify two or more external volumes for the initial copy or
resynchronization. Therefore, when you copy external volumes that are mapped automatically with
the program product for copying, the copy operation might focus on a specific RAID group and
cause insufficient performance. To prevent the copy operation from focusing on a specific RAID
group, HP recommends that the external volumes be mapped manually so that the copy operation
is distributed to two or more RAID groups.
Port Discovery and Volume Discovery
Port discovery and volume discovery are methods used to find external volumes, and are executed
when you map external volumes or when you add cross-subsystem paths.
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Port discovery searches for and gets information about target ports of the connected external
storage system from an external port of the local storage system. The latest information about
26 About XP External Storage Operations
the external storage system can be displayed in a dialog box of XP External Storage when
you execute port discovery.
You can set in advance the mapping policy on whether to execute port discovery automatically
or manually. If port discovery is executed automatically, WWNs connected to all the external
ports of the local storage system will be searched for. If port discovery is executed manually,
you can select a specific external port and limit the scope to search WWNs. If you can specify
which external port to search for, you can reduce the operation time by executing the port
discovery manually.
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Volume discovery searches for and gets information about external volumes from the target
ports of the external storage system. Volume discovery is automatically executed after the port
discovery process.
When a port in an external storage system is connected to an XP storage system and has a
management LU (for example, Universal Xport LU), an extra operation is required. A management
LU is an LU that receives commands issued by a particular application. The management LU controls
or manages that application. The management LU stores control information from that application
and, therefore, the management LU cannot be used as an external volume. A command device is
not a management LU.
Before performing port discovery or volume discovery, perform one of the following operations on
the external storage system.
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Delete the management LU from the port connected to the XP storage system.
Make sure that at least one LU is used for data storage and has a smaller LUN ID than the
LUN of the management LU. Also make sure that the data storage LU is set to the port connected
to the XP storage system.
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Use the security function and configure the access attribute of the management LU to prohibit
read and write operations.
If none of the operations is performed, an external storage system that has a management LU might
not be recognized by the local storage system.
Using a Mapped External Volume from a Connected Host
There are two ways of using the mapped external volume from a host that is connected the local
storage system.
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Storing New Data in the Mapped External Volume
To store new data in a mapped external volume from a host that is connected to the local storage
system:
1. Map the volume in the external storage system as an internal volume of the local storage
system using XP External Storage.
Select the emulation type of the mapped volume as you required. If you select the emulation
type for the open system (such as OPEN-V), go to step 2. If you select the emulation type for
the mainframe system (such as 3390-3), go to step 3.
For information on mapping operations, see “Mapping an External Volume Automatically”
2. If you set the emulation type for the open system when you map the volume, the status of the
mapped volume automatically becomes Normal. If you need to initialize the data area of the
mapped volume, format the volume using the VLL function. For the volume formatting procedure,
Using a Mapped External Volume from a Connected Host 27
see the HP StorageWorks XP24000/XP20000 Virtual LVI/LUN (VLL) and Volume Shredder
User Guide.
Go to step 4.
3. If you set the emulation type for the mainframe system when you map the volume, the status
of the mapped volume becomes Blockade. Format the volume using the VLL function.
For zero-formatted external volumes, when you select that volume to map, you can use the
VLL function to perform the Write to Control Blocks operation to restore the volume. For
instructions on how to format volumes and the Write to Control Blocks operation, see the HP
StorageWorks XP24000/XP20000 Virtual LVI/LUN (VLL) and Volume Shredder User Guide.
Go to step 4.
4. To perform the host I/O operations, set the LU path from the Target port to the mapped volume.
After the LU path is set, the host I/O operation to the mapped volume becomes available.
Figure 12 Storing the New Data in the Mapped External Volume
Using Existing Data in the Mapped External Volume
To use the existing data in the mapped external volume from the host that is connected to the local
storage system:
1. Store the data from the host that is connected to the external storage system to the volume in
the external storage system.
2. Map the volume containing data in the external storage system as an internal volume of the
local storage system using XP External Storage.
When you map the external volume, set the attributes of the mapped volume to Emulation
type = OPEN-V to read the existing data in the mapped external volume from the local storage
system side.
3. Set the LU path from the Target port to the mapped volume to perform the host I/O operation.
After the LU path is set, the host I/O operation to the mapped volume can be initiated.
Make sure that you do not access the external volume, which has been mapped as an internal
volume, from the host that is connected to the external storage system. Also make sure that you do
not access the mapped external volume using the function (for example, copy function) of the
external storage system. Once you have mapped an external volume as an internal volume, you
can access the mapped external volume only from the local storage system side.
28 About XP External Storage Operations
From the host, you can access the external storage system volumes that have not been mapped as
mapped external volume.
Figure 13 Using the Existing Data in the Mapped External Volume
Interoperability with other Products and Functions
You can use XP disk array program products to use and manage the external volumes you have
set using XP External Storage. For the operations and notes on each program product, see the
respective user's guides.
LUN Manager and Configuration File Loader
If you set the emulation type for the open system as you map an external volume, you need to set
the LU path for the mapped volume using LUN Manager.
Consider the following for the Configuration File Loader function:
•
•
•
You can set the LU path definition for the external volume (add, delete, or change LU paths).
You can set the command device for the external volume (add or delete the setting).
The setting of the channel adapter (CHA) mode, host group, and WWN for the external port
is not supported. When an external volume is mapped through that external port, the setting
operation of the topology is not available, either.
LUN Expansion (LUSE)
Consider the following for LUN Expansion (LUSE):
•
•
•
The internal volume in the local storage system and the external volume cannot be combined
to form a LUSE volume.
Do not combine LDEVs of multiple external volumes to create a LUSE volume. Only the LDEVs
in the same external volume can be used to configure the LUSE volumes.
All external volumes in a LUSE volume must be in the same Cache Mode.
Interoperability with other Products and Functions 29
Virtual LVI/LUN (VLL)
Consider the following for Virtual LVI/LUN (VLL):
•
If you set the emulation type for the mainframe system as you map the external volume, you
need to format the mapped volume or perform the Write to Control Blocks operation using the
VLL function before you use the external volume.
For the volume formatting operation and Write to Control Blocks operation procedures, see
the HP StorageWorks XP24000/XP20000 Virtual LVI/LUN (VLL) and Volume Shredder User
Guide.
•
If you create LDEVs in an external volume using the VLL function, the cache mode of the created
LDEVs becomes the same as that of the source external volume.
Cache Residency Manager
Consider the following for Cache Residency Manager:
•
The bind mode of the Cache Residency Manager operation cannot be specified for the external
volume if the Cache Mode is set to Disable.
•
If you use the mapped external volume for the Cache Residency Manager operation and set
the bind mode, a cache of twice as much capacity as the user data is required for the Cache
Residency Manager operation.
Performance Monitor and XP Auto LUN
Consider the following for Performance Monitor and XP Auto LUN:
•
Performance Monitor can be used to display the monitoring information about the external
volumes.
•
Mapped volumes can be used for XP Auto LUN. For instructions on adjusting volume capacity,
XP Continuous Access and Hitachi TrueCopy™ for Mainframe
Mapped volumes can be used for XP Continuous Access and for TrueCopy for Mainframe. For a
HP StorageWorks XP Continuous Access Journal Software and Hitachi Universal
Replicator™ for Mainframe
Mapped volumes can be used for XP Continuous Access Journal and Universal Replicator for
Mainframe. For a configuration example of XP Continuous Access Journal, see “XP Continuous
HP StorageWorks XP Business Copy Software and Hitachi ShadowImage™ for
Mainframe
Mapped volumes can be used for XP Business Copy and ShadowImage for Mainframe. For a
30 About XP External Storage Operations
HP StorageWorks XP Snapshot Software
Mapped volumes can be used for XP Snapshot. Consider the following for XP Snapshot:
•
•
Both internal and external volumes cannot be mixed in one pool.
All external volumes in the same pool must be in the same Cache Mode.
HP StorageWorks XP Thin Provisioning Software
Mapped volumes can be used for XP Thin Provisioning. Consider the following for XP Thin
Provisioning:
•
•
Both internal and external volumes cannot be mixed in one pool.
All external volumes in the same pool must be in the same Cache Mode.
SNMP Agent
Consider the following for SNMP Agent:
•
•
The information on the mapped external volume is displayed.
The information on the external port is displayed.
Examples of Using External Volumes with Other Products
For the following XP disk array program products, examples of using external volumes are described
in the following subsections:
•
•
•
•
•
XP Auto LUN Operations
mapped external volume is set as the source volume and the local internal volume is set as the
target volume. Existing data in the external volume is migrated manually to the local storage system
internal volume using XP Auto LUN. For detailed information on XP Auto LUN operations, see the
HP StorageWorks XP24000/XP20000 Auto LUN Software User Guide.
The procedure for the operation is as follows:
1. Use XP External Storage to map a volume in the external storage system as an internal volume
of the local storage system.
Emulation type: OPEN-V
To migrate the existing data in the mapped external volume to the local storage system volume
using XP Auto LUN, set the emulation type to OPEN-V as you map the volume. The emulation
type must be OPEN-V to read out the existing data in the external volume from the local storage
system side.
Examples of Using External Volumes with Other Products
31
To copy the existing data in the mapped external volume using the copy program products
of Remote Web Console such as XP Continuous Access and XP Business Copy, the emulation
type of the mapped external volume also has to be OPEN-V.
2. Prepare the local internal volume that has the same capacity as the mapped external volume.
Adjust the capacity of the internal volume as it is required using the VLL function.
For the VLL function, see the HP StorageWorks XP24000/XP20000 Virtual LVI/LUN (VLL) and
Volume Shredder User Guide.
The emulation type of the prepared internal volume must be OPEN-V.
3. Set the mapped external volume as the source volume and local storage system internal volume
as the target volume.
4. Migrate the existing data in the mapped external volume to the local storage system internal
volume manually using XP Auto LUN.
Figure 14 Example of the XP Auto LUN Operations
XP Continuous Access Operations
The mapped external volume is set as the S-VOL of the XP Continuous Access pair, and the volume
in the local storage system that is connected as the multipoint control unit (MCU) is set as the P-VOL
of the XP Continuous Access pair. For details on XP Continuous Access, see the HP StorageWorks
XP24000/XP20000 Continuous Access Software User Guide.
The procedure for the operation is as follows:
1. Use XP External Storage to map a volume in the external storage system as an internal volume
of the local storage system, which is used as remote control unit (RCU) for the XP Continuous
Access operation.
You can select the emulation type of the mapped volume as you required. If you select the
emulation type for the open system (such as OPEN-V), go to step 2. If you select the emulation
type for the mainframe system (such as 3390-3), go to step 3.
For details on the mapping operation, see “Mapping an External Volume Automatically”
2. If you set the emulation type for the open system when you map the volume, the status of the
mapped volume automatically becomes Normal. However, the volume formatting processing
32 About XP External Storage Operations
is not executed automatically. If you need to format the mapped volume, format the volume
using the VLL function.
For the volume formatting operation procedure, see the HP StorageWorks XP24000/XP20000
Virtual LVI/LUN (VLL) and Volume Shredder User Guide.
Go to step 4.
3. If you set the emulation type for the mainframe system when you map the volume, the status
of the mapped volume becomes Blockade. Format the volume using the VLL function. Or if
you have mapped the volume for which the data area has already been zero-formatted on
the external storage system side, perform the Write to Control Blocks operation using the VLL
function to restore the volume.
For the volume formatting operation and Write to Control Blocks operation procedures, see
the HP StorageWorks XP24000/XP20000 Virtual LVI/LUN (VLL) and Volume Shredder User
Guide.
Go to step 4.
Figure 15 Example of the XP Continuous Access Operations
XP Continuous Access Journal Operations
operation. The mapped external volume is set as the S-VOL of the XP Continuous Access Journal
pair, and the volume in the local storage system that is connected as the MCU is set as the P-VOL
of the XP Continuous Access Journal pair. For details on XP Continuous Access Journal, see the HP
StorageWorks XP24000/XP20000 Continuous Access Journal Software User Guide.
The procedure for the operation is as follows:
Examples of Using External Volumes with Other Products 33
1. Use XP External Storage to map the volume in the external storage system as an internal volume
of the local storage system, which is used as RCU for the XP Continuous Access Journal
operation.
You can select the emulation type of the mapped volume as you required. If you select the
emulation type for the open system (such as OPEN-V), go to step 2. If you select the emulation
type for the mainframe system (such as 3390-3), go to step 3.
For details on the mapping operation, see “Mapping an External Volume Automatically”
2. If you set the emulation type for the open system when you map the volume, the status of the
mapped volume automatically becomes Normal. However, the volume formatting processing
is not executed automatically. If you need to format the mapped volume, format the volume
using the VLL function.
For the volume formatting operation procedure, see the HP StorageWorks XP24000/XP20000
Virtual LVI/LUN (VLL) and Volume Shredder User Guide.
Go to step 4.
3. If you set the emulation type for the mainframe system when you map the volume, the status
of the mapped volume becomes Blockade. Format the volume using the VLL function. Or if
you have mapped the volume for which the data area has already been zero-formatted on
the external storage system side, perform the Write to Control Blocks operation using the VLL
function to restore the volume.
For the volume formatting operation and Write to Control Blocks operation procedures, see
the HP StorageWorks XP24000/XP20000 Virtual LVI/LUN (VLL) and Volume Shredder User
Guide.
Go to step 4.
34).
Figure 16 Example of the XP Continuous Access Journal Operations
34 About XP External Storage Operations
XP Business Copy Operations
mapped external volume is set as the S-VOL of the XP Business Copy pair, and the local storage
system internal volume is set as the P-VOL of the XP Business Copy pair. For details on XP Business
Copy, see the HP StorageWorks XP24000/XP20000 Business Copy Software User Guide.
The procedure for the operation is as follows:
1. Use XP External Storage to map a volume in the external storage system as an internal volume
of the local storage system.
You can select the emulation type of the mapped volume as you required. If you select the
emulation type for the open system (such as OPEN-V), go to step 2. If you select the emulation
type for the mainframe system (such as 3390-3), go to step 3.
For details on the mapping operation, see “Mapping an External Volume Automatically”
2. If you set the emulation type for the open system when you map the volume, the status of the
mapped volume automatically becomes Normal. However, the volume formatting processing
is not executed automatically. If you need to format the mapped volume, format the volume
using the VLL function.
For the volume formatting operation procedure, see the HP StorageWorks XP24000/XP20000
Virtual LVI/LUN (VLL) and Volume Shredder User Guide.
Go to step 4.
3. If you set the emulation type for the mainframe system when you map the volume, the status
of the mapped volume becomes Blockade. Format the volume using the VLL function. Or if
you have mapped the volume for which the data area has already been zero-formatted on
the external storage system side, perform the Write to Control Blocks operation using the VLL
function to restore the volume.
For the volume formatting operation and Write to Control Blocks operation procedures, see
the HP StorageWorks XP24000/XP20000 Virtual LVI/LUN (VLL) and Volume Shredder User
Guide.
Go to step 4.
Figure 17 Example of the XP Business Copy Operations
Examples of Using External Volumes with Other Products 35
XP Snapshot Operations
mapped external volume is set as a pool-VOL of the XP Snapshot pair. For details on XP Snapshot,
see the HP StorageWorks XP24000/XP20000 Snapshot User Guide.
The procedure for the operation is as follows:
1. Use XP External Storage to map a volume in the external storage system as an internal volume
of the local storage system.
CAUTION: Set the emulation type of the volume to OPEN-V when you map the volume,
because the volume with the OPEN-V emulation type can only be set as a pool-VOL of XP
Snapshot.
For details on the mapping operation, see “Mapping an External Volume Automatically”
2. The status of the mapped volume automatically becomes Normal. However, the volume
formatting processing is not executed automatically. If you need to format the mapped volume,
format the volume using the VLL function. For the volume formatting operation procedure, see
the HP StorageWorks XP24000/XP20000 Virtual LVI/LUN (VLL) and Volume Shredder User
Guide.
3. Create a pool and add the mapped external volume to that pool as a pool-VOL.
4. Set the P-VOL and S-VOL of the XP Snapshot pair with specifying the pool you have created
at step 3.
Figure 18 Example of the XP Snapshot Operations
36 About XP External Storage Operations
3 Preparing for XP External Storage Operations
This chapter describes the requirements and preparations for XP External Storage operations.
•
•
•
•
System Requirements
The system requirements for XP External Storage are:
•
HP XP storage system (First storage system)
All the necessary hardware and microcode required for XP External Storage operations must
be installed and enabled. In this user's guide, the first storage system is called local storage
system.
•
Storage system other than the first storage system
A second storage system must be available and operate as an external storage system. The
kinds of storage systems that can be used as an external storage system include HP
StorageWorks EVA storage systems, HP StorageWorks MSA storage systems, and other similar
storage systems. For detailed information on the storage systems that can be used as the
external storage system, see “Storage Systems Supported as External Storage Systems”
•
•
Remote Web Console computer (user-supplied computer)
See the HP StorageWorks XP24000/XP20000 Remote Web Console User Guide for
instructions on installing and using the Remote Web Console computer.
NOTE: You must operate the Remote Web Console computer in Modify mode to perform
XP External Storage operations. Users in View mode can only view XP External Storage
information.
License key for XP External Storage program product
You need a license key to install XP External Storage.
Storage Systems Supported as External Storage Systems
For the storage systems that are currently supported as external storage, contact HP.
XP External Storage Requirements
Table 1 (page 38) describes the XP External Storage requirements.
System Requirements
37
Table 1 XP External Storage Requirements
Item
Requirement
Maximum number of ports in the
connected external storage system
(WWN is used as a port identification
number
1,024 per port
Maximum number of external volumes
that can be connected
63,232 volumes can be connected.
4,096 volumes can be connected per port.
If you use XP Snapshot or XP Thin Provisioning, the number of
external volumes that can be connected is as follows:
Number of external volumes + Number of virtual volumes
63,232
Maximum number of mapping paths can
be set for one external volume
8
Maximum capacity of an external volume 4 TB per external volume
If you specify an external volume that is more than 4 TB you can
access the data stored in the field up to 4 TB. You cannot access
the data that is stored in the field over 4 TB.
Minimum capacity of an external volume 77,760 blocks (about 38 MB) per external volume.
However, when the emulation type of the volume is OPEN-V,
the minimum capacity becomes 96,000 blocks (about 47 MB)
per external volume
Maximum number of external volume
groups
16,384
4,096
Maximum number of external volumes
that can be registered in one external
volume group
Guidelines for XP External Storage Operations
This section provides guidelines for the XP External Storage operations.
Mapping Guidelines
•
Before mapping external volumes, make sure that external volumes are not reserved by a host.
External volumes that are reserved by a host cannot be mapped as internal volumes.
If external volumes are reserved by a host, cancel the reserve settings and then map the external
volumes.
•
Once external volumes are mapped, do not reserve the external volumes for a host.
If external volumes are reserved by a host, internal volumes to which the external volumes are
mapped will be blocked.
38 Preparing for XP External Storage Operations
•
Make sure that an external volume is accessed only from the local storage system side once
the external volume is mapped.
◦
◦
◦
Make sure that the external volume, which has been mapped as an internal volume, is
not accessed from the host that is connected to the external storage system.
Make sure that the external volume, which has been mapped as an internal volume, is
not manipulated by the copy function or other function of the external storage system.
If you need to access the mapped external volumes from the external storage system,
perform the operation explained in “Disconnecting External Storage System or
Hosts can access the external storage system volumes that have not been mapped as the
internal volumes. There is no restriction.
•
•
Do not map a volume from an external storage system if it has already been mapped as
internal storage in another storage system.
When an external storage system that has an ownership is connected to a storage system,
configure the cross-subsystem path to the primary controller in the external storage system as
primary path.
Ownership is an exclusive right to control volumes. A controller that has an ownership is called
a primary controller. If a cross-subsystem path to a controller without ownership is configured
as primary path, the ownership will be transferred and it may affect the performance.
Recommended Applications According to HDD Type
mapped external volume according to the hard disk drive (HDD) type of the external volume.
Table 2 When the Emulation Type of the External Volume is for OPEN
Application
HDD Type
FC/SSD1, 2
Yes
SATA3
Database
Not Recommended
Online Transaction Processing (OLTP)
File Operation from Host
(Both of Read and Write)
Yes
Yes
Not Recommended
Yes
File Operation from Host
(Mainly Read)
Backup
Archive
Yes
Yes
Recommended
Recommended
1
FC = Fibre channel
2
3
SSD = Solid State Drive
SATA = Serial Advanced Technology Attachment
Guidelines for XP External Storage Operations 39
Table 3 When the Emulation Type of the External Volume is for Mainframe
Application
HDD Type
FC/SSD
SATA
Database
Not Recommended
Not Recommended
Online Transaction Processing (OLTP)
System Volumes
Not Recommended
Not Recommended
(Journal, Check points)
Operation from TPF
Not Supported
Yes
Not Supported
File Operation from Host
(Both of Read and Write)
Not Recommended
File Operation from Host
(Mainly Read)
Yes
Yes
Backup
Archive
Yes
Yes
Recommended
Recommended
Capacity Guidelines
•
When a volume, which has the capacity of 4 TB or less, in the external storage system (external
volume) is mapped with the setting of OPEN-V emulation type, the volume is defined as the
internal volume that has the same capacity as the mapped external volume.
Figure 19 Example of External Volume of 4 TB or Less
•
•
You cannot access the data that is stored in the field over the maximum capacity of the external
volume.
The maximum volume capacity differs depending on the emulation type that you specify at
the external volume mapping. See “Required Volume Capacity for Each Emulation Type”
(page 152) for more details.
When an external volume is mapped as internal volumes with the setting of the emulation type
other than OPEN-V, the number of volumes and the volume capacity of the mapped external
volumes depend on the capacity of the original external volume and the basic capacity of
each emulation type. When an external volume is mapped with the setting of emulation type
other than OPEN-V, the data management information area is required to be provided in the
mapped volume. This means that the capacity that can be used after the mapping becomes
40 Preparing for XP External Storage Operations
smaller than the actual external volume capacity. The available capacity decreases as much
capacity as the data management information area.
Figure 20 (page 41) shows an example of when the original capacity of the external volume
is bigger than the basic capacity of the emulation type. The emulation type is OPEN-3.
is smaller than the basic capacity of the emulation type.
Figure 20 When the External Volume Capacity is Bigger than the Basic Capacity of Specified
Emulation Type (Example of the OPEN-3 emulation type)
Figure 21 When the External Volume Capacity is Smaller than the Basic Capacity of Specified
Emulation Type
Guidelines for Mainframe Volumes
•
If you plan to use the mapped external volume from the mainframe operating system (for
example, the volume is mapped with the setting of 3390–x mainframe emulation type), you
need to select the external volume that consists of one LDEV or you need to adjust the capacity
of the external volume to be mapped beforehand. If multiple LDEVs exist in one external volume
and if a lot of I/Os are made to these LDEVs, the read, write commands may time out. When
the commands may time out, the SIM (21D2xx) is reported.
•
When you use the mapped external volume from the mainframe operating system, set the MIH
(Missing Interrupt Handler) timer to 45 seconds (which is the recommended value).
Volume Attribute Guidelines
•
The external volume attributes for all the LDEVs created in an external volume become the
same. The attributes are taken over, when the LDEVs are reconfigured using the VLL function.
•
The Cache Mode becomes the same for all the LDEVs in one external volume.
Guidelines for XP External Storage Operations
41
•
The attributes that are set for the external volume originally on the external storage system
side (such as the port security, the LUN security, the Volume Retention Manager attributes,
and so on) are not kept, when the external volume is mapped as an internal volume. If the
original attributes are required to be set, set the attributes on the mapped external volume
from the local storage system side.
•
•
For the external volume, for which the Cache Mode is set to Disable, the bind mode for the
Cache Residency Manager operation is not available.
If you use the mapped external volume for the Cache Residency Manager operation and set
the bind mode, the cache of twice as much capacity as the user data is required for the Cache
Residency Manager operation.
Creating LUSE Volume Guidelines
•
Do not combine LDEVs of multiple external storage systems to create a LUSE volume. The
LDEVs in the same external storage system can only be used to set the LUSE volumes.
When you combine LDEVs of multiple external storage systems to create a LUSE volume, the
following problems will occur:
◦
◦
◦
If a LUSE volume consists of multiple external storage systems and one external storage
system volume has lower performance than the other storage system volumes, the lower
performance of the volume affects the performance of the LUSE volume.
When an external storage system volume that is part of a LUSE volume is blocked, data
reliability of the LUSE volume will deteriorate because the LUSE volume has both accessible
area and inaccessible area from a host.
When you disconnect an external volume or resume the use of an external volume, you
need to perform the operation at the same time on all the external volumes that are
components of the LUSE volume.
•
The mapped volumes that have different cache mode settings cannot be used to create one
LUSE volume.
42 Preparing for XP External Storage Operations
Maintenance Guidelines for an External Storage System
•
Before you change settings of the external storage system, you must delete the external volume
mapping. After you change settings of the external storage system, you must remap the external
volume. If you do not remap the volume, the external volume cannot be used in the local
storage system.
The examples of external storage system settings requiring the re-mapping of external volume
are as follows:
◦
◦
◦
◦
Changing WWNs of target ports that connect to the local storage system
Changing the serial number of the external storage system
Changing LUNs of volumes of the external storage system
Reducing the volume capacity of the external storage system so that the volume capacity
is smaller than when volume mapping was performed
Besides, re-mapping is required for XP External Storage after you change external storage
system settings that require modification on the host side when hosts are connected directly
to a external storage system.
Before you delete the external volume mapping, make sure that the volume has no LU paths,
and that the volume is not a component of any pairs (such as XP Continuous Access pairs).
For detailed information on deleting the external volume mapping, see “Deleting the External
Volume Mapping (Delete Volume Command)” (page 99). For detailed information on mapping
Performance and Status Guidelines
•
The performance and status of the external storage system affect the Read and Write
performance of the mapped external volume. If there is a heavy load on the external storage
system, the processing speed of the Read and Write operation becomes slow. In this case,
the I/Os from the mainframe host may MIH error.
•
When you use an external volume from the host, note the Path Blockade Watch time for the
external volume. If the Path Blockade Watch time is longer than the timeout period of the host
command, the commands from the host time out when the power supply is off or when an
error occurs on the external storage system. If the host I/O is a significant concern, make sure
that the Path Blockade Watch time of the external volume is the same as or shorter than the
timeout period of the host command.
RAID Level Considerations
In the internal processing, the RAID level of the external volume is handled as RAID-1 across the
board. The bar (−) is displayed on the Remote Web Console windows. The RAID level of external
volumes is reported as RAID-1 when information about external storage system is reported to the
higher-level device (OS).
AMS 2000 Series Guidelines
•
When you use an AMS 2000 series storage system as an external storage system, unnecessary
loads to the external storage system should be avoided.
When an AMS 2000 series storage system is used as an external storage system, the path
mode between storage systems is Multi mode. Therefore, if there are many external paths and
mapping volumes, the load to the external storage system becomes high and some commands
from the host to the XP24000 disk array or some commands from the XP24000 disk array to
the external storage system might time out.
Guidelines for XP External Storage Operations 43
To keep the load proper, HP recommends the following:
◦
Define volumes of each AMS 2000 series storage system to set the external path number
to two. In that case, set the paths to the ports of each controller of the AMS 2000 series
storage system.
◦
Set the queue of commands that are issued at the same time from one AMS 2000 series
storage system to 500 or less. The formula to calculate the number of the queue commands
per AMS 2000 series storage system is shown as follows:
(number of queues) x (number of paths of external volumes) x (number of external volumes
that issue commands at the same time) < 500
For more information about setting the queue of commands, see “Change WWN
•
When you use external volumes of the AMS 2000 series storage system with the program
product for copying, the copy operation needs to be distributed to two or more RAID groups.
There is an upper bound to the number of pairs that can be used for an initial copy or
resynchronization. Therefore, the copy operation might focus on a specific RAID group
according to the order of the copy operation when the copy operation is performed to two
or more external volumes. The drive of the AMS 2000 series storage system might become a
bottleneck, which causes insufficient performance, when the copy operation focuses on a
specific RAID group.
Installing and Uninstalling XP External Storage
This section explains how to install and uninstall XP External Storage.
Installing XP External Storage
You need to install XP External Storage using the license key to perform the XP External Storage
operations on the Remote Web Console computer.
To install the XP External Storage license key:
1. Start the Remote Web Console for the desired storage system.
2. Enable the XP External Storage options on the Remote Web Console computer and on each
storage system.
For detailed instructions, see the HP StorageWorks XP24000/XP20000 Remote Web Console
User Guide.
Uninstalling XP External Storage
To uninstall XP External Storage, you must remove all the pairs and then delete the external volume
mapping.
To uninstall XP External Storage:
1. Start Remote Web Console, and open the Remote Web Console main window.
For instructions, see the HP StorageWorks XP24000/XP20000 Remote Web Console User
Guide.
3. Disable the XP External Storage option on the Remote Web Console computer and on each
storage system.
For detailed information about the uninstallation procedure, see the HP StorageWorks
XP24000/XP20000 Remote Web Console User Guide.
44 Preparing for XP External Storage Operations
Starting XP External Storage
This section explains how to start XP External Storage.
To start XP External Storage and display the window:
1. Start Remote Web Console, and open the Remote Web Console main window.
For instructions, see the HP StorageWorks XP24000/XP20000 Remote Web Console User
Guide.
2. Click Go and then External Storage on the menu bar of the Remote Web Console main window.
Names of the windows which you need for XP External Storage operations are displayed in
the submenu.
3. Click the name of the window you want to display.
XP External Storage starts up, and the window you selected, opens.
4. Switch to Modify mode if necessary.
For instructions, see the HP StorageWorks XP24000/XP20000 Remote Web Console User
Guide.
Starting XP External Storage 45
4 Using the XP External Storage GUI
This chapter explains the XP External Storage windows: Volume Operation, Path Operation, and
Port Operation. When you click the tab of the window name, the window is switched to the
corresponding window.
•
•
•
Volume Operation Window
Use the Volume Operation window to perform operations, such as mapping external volumes and
setting cross-subsystem paths. To open the Volume Operation window, click Go, External Storage,
and then Volume Operation on the menu bar of the Remote Web Console main window.
46 Using the XP External Storage GUI
Figure 22 Volume Operation Window
Item
Description
Tree
The left pane of the window contains a tree and a list for
changing the tree display. The information shown in the
list on the right changes according to the items selected in
Status
Provides the external volume status in the Ext. VOL Status
column in the Volume Operation list. The Ext. VOL Status
column does not show the status when you open the Volume
Operation window, because displaying the external volume
status takes longer than displaying other items in the
window.
•
Status: Disable: The status is not displayed. Click Status:
Disable to display the status. The button name changes
to Status: Enable.
•
Status: Enable: The status is displayed.
To update the all items in the window including the Ext.
VOL Status column, make sure the button name is Status:
Enable, then click File and Refresh on the menu bar of the
Remote Web Console main window.
List
Information on the local storage system and external
storage system appears corresponding to the items selected
in the tree. Sort the list by clicking the column headings.
Operation
Preview
The name of the performed setting operation. Click Preview
to check the details.
Opens the Preview dialog box where you can confirm the
contents set in the list of the Volume Operation window.
The contents displayed in the Preview dialog box have not
yet been applied to the local storage system.
Volume Operation Window
47
Item
Description
Apply
Applies the settings in the Preview dialog box to the local
storage system.
When the settings are applied successfully, they are
removed from the Preview dialog box and the settings in
blue italics in the Volume Operation window appear
normally.
When the settings are not applied, the error messages
appear and the settings in blue italics remain in the Volume
Operation window. To see the error detail, click Preview
to open the Preview dialog box.
Cancel
Cancels all the settings in the Preview dialog box.
Table 4 (page 48) shows how the items clicked in the tree control the information displayed in the
list on the right:
Table 4 Volume Operation Tree and List
Items selected in the list
Items displayed in the tree
Contents displayed in the list Reference
(Clicked items are
underlined)
Fibre
Subsystem
+ Product name
+ Path group
Information about the
when you click the product
name in the tree.
Subsystem
+ Product name
+ Path group
Information about the
external storage system. The
same contents are displayed
when you click the
Subsystem in the tree.
Subsystem
+ Product name
+ Path group
and cross-subsystem paths
path group.
48 Using the XP External Storage GUI
Volume Operation Tree
The Volume Operation tree, on the left side of the Volume Operation window, contains the following:
Item
Description
List
Changes the items displayed in the Volume Operation tree.
You can select Fibre as a PCB type.
Tree
The following items appear in tree format. The information
displayed in the list on the right changes corresponding to
the items clicked in this tree.
•
Subsystem: The root node of the Volume Operation tree
that is always displayed.
•
Product name of the external volume: The product name
of the external storage system whose volumes are
mapped by XP External Storage appears under
Subsystem. The display format is Vendor name:
Product name (Serial number).
•
Path group: The path group set in the external storage
system appears under the product name of the external
storage system. When multiple path groups are set, the
registration numbers are added after the Path Group
(For example, Path Group 2).
Pop-up menu
Right-click the item in the Volume Operation tree to perform
the operations from the pop-up menu. For details, see
Table 5 Pop-up Menu for the Volume Operation Tree
Items displayed in the tree
Pop-up Menu
Reference
Description
(Clicked items are
underlined)
Subsystem
+ Product name
+ Path group
Add Volume (Auto)
Displays the Configure
Cross-subsystem Paths dialog
box or the Add Volume
(Manual) dialog box. These
dialog boxes allow you to
set a new path group, and
add external volumes to the
new path group.
Add Volume (Manual)
Edit Policy
Displays the Edit Policy
dialog box. This dialog box
allows you to edit the
mapping policy.
Volume Operation Window 49
Table 5 Pop-up Menu for the Volume Operation Tree (continued)
Items displayed in the tree
Pop-up Menu
Reference
Description
(Clicked items are
underlined)
Subsystem
+ Product name
+ Path group
Disconnect Subsystem
Disconnects or reconnects
the external volumes in the
selected external storage
system.
Check Paths & Restore
Volume
Subsystem
+ Product name
+ Path group
Add Volume (Auto)
Executed the volume
discovery. All external
Add Volume (Manual)
volumes found by the volume
discovery process appear in
the following windows.
•
For the Add Volume
(Auto) command: Volume
Operation window
•
For the Add Volume
(Manual) command: Add
Volume dialog box
Volume Operation List (When Subsystem or Product Name is Clicked)
When you click Subsystem or a product name in the Volume Operation tree, the external storage
system information appears in the list.
Item
Description
Vendor
Name of the vendor.
Product Name
Serial Number
Ext. VOL Status
Name of the storage system.
Serial number of the storage system.
Status of the operation executed to the external volume or
status of the connection of the mapping path. The displayed
each LDEV in the external volume, you need to view the
VLL window.
Information Area
Information according to the contents of External Subsystem
on the Volume Operation window appears in the
information area, as follows:
•
Total Number of Ext. Subsystems: The number of
external storage systems that have the mapped external
volumes.
•
Total Number of Ext. Volumes: The number of the
mapped external volumes and the number of the
external volumes that can be mapped.
50 Using the XP External Storage GUI
Table 6 Status of the External Volume in Ext. VOL Status
Displayed Item
Description
Normal
The path is normal.
-
The status of the mapping path is not retrieved yet. Click Status in the Volume
Operation window to change the name of the button to Status: Enable, and
display the status of the mapping path.
Unknown
Blockade
Warning
The status of the mapping path is unknown.
The mapping path is blocked.
There are mapping paths whose status is not normal. Check the status of the
mapping paths in the Mapping Path Information dialog box.
Checking
The checking of the mapping path status is in progress.
Cache Destage
Disconnect
The writing of data in cache memory to the volume is in progress.
Connecting to the external storage system or the external volume is intentionally
stopped using the Disconnect Subsystem command or the Disconnect Volume
command.
Volume Operation List (When Path Group is Clicked)
When you click a path group in the Volume Operation tree, the external storage system information
and the cross-subsystem path information appears in the list.
Volume Operation Window
51
The External Volumes list provides the following information:
Item
ExG
Description
External volume group number and sequential number
assigned to each volume in the external volume group.
This appears in the format of external volume group
number - sequential number of volume in
the group. The sequential numbers of volumes in the
group are automatically assigned by XP External Storage
when the external volumes are mapped.
LDEV
LDKC:CU:LDEV number that is assigned to the external
volume. When multiple LDEVs are created in the external
volume, the top LDEV number appears, and [...] appears
at the end of the number.
Characteristic1
Device
Identification number of the external volume.
Name of the storage system that is reported to the host by
the external volume. The displayed items differs depending
on the vendor of the storage system.
Capacity (blocks)
Cache Mode
Capacity, in blocks, of the external volume.
Indicates whether the write data from the host to the
external storage system is propagated synchronously
(Disable) or asynchronously (Enable). Data that is not written
by the host (for example, data written by XP Business Copy)
is asynchronously destaged to the external storage system
regardless of the Cache Mode setting.
Inflow Control
Path Mode
Indicates whether the writing operation to the cache
memory is stopped (Enable) or continued (Disable) when
the writing operation to the external volume is impossible.
Indicates how the cross-subsystem paths work. The modes
of the cross-subsystem path are as follows:
•
Single: Only the cross-subsystem path with the highest
priority (primary path) is used to execute the I/O to the
external volume. When an error occurred in the primary
path, the path with the second highest priority is used.
•
•
Multi: All of the cross-subsystem paths are used at the
same time. The multiple paths are used to execute the
I/Os to the external volume distributing the work load.
APLB: All of the cross-subsystem paths are used at the
same time. The multiple paths are used to execute the
I/Os to the external volume distributing the work load.
However, the paths are not used when the paths are
connected to ports in the Passive status.
Ext. VOL Info
Information about the external volume.
An asterisk (*) appears when the external volume is a SATA
drive of the following storage systems. Usage of SATA
drives differs depending on storage systems, and therefore
SATA drives should be used accordingly.
•
•
•
•
USP V/USP VM storage system
AMS/WMS storage system
SMS storage system
Thunder 9500V series storage system
A dollar sign ($) appears when the external volume is an
SSD drive of the USP V/USP VM storage system. Usage
of SSD drives differs depending on storage systems, and
therefore SSD drives should be used accordingly.
52
Using the XP External Storage GUI
Item
Description
Ext. VOL Status
Status of the operation executed to the external volume or
status of the connection of the mapping path. For the
check status of each LDEV in the external volume, view the
VLL window.
Progress
Appears when the Status is Cache Destage. The progress
status of destaging processing is displayed in 1% to 99%.
Characteristic2
Extended identification number of the external volume. This
information is used for identifying volumes in the EVA
storage system.
Pop-up menu
Right-click a row in the External Volumes list (at the top of
the window) to perform the following operations:
•
Mapping Path Information: Opens the Mapping Path
Information dialog box. This dialog box allows you to
see the list of the mapping paths set to the selected
external volume. See “Checking the External Volume
•
LDEV Information: Opens the LDEV Information dialog
box. This dialog box allows you to see the emulation
type and the capacity of the selected external volume.
•
•
•
•
•
Delete Volume: Cancels the mapping of the selected
external volume. See “Deleting the External Volume
Disconnect Volume: Disconnects the selected external
volume. See “Disconnecting an Individual External
Check Paths & Restore Volume: Reconnects the selected
external volume. See “Checking Connection Status and
Change Cache Mode: Changes the cache mode set to
the selected external volume. See “Changing the Cache
Inflow Control: Allows you to select whether to stop
writing to the cache memory when it is impossible to
write to the selected external volume. See “Changing
The Cross-system Paths list provides the following information:
Table 7 Cross-subsystem Paths List Details
Item
Description
Priority
Priority of the cross-subsystem paths, where 1 indicates the
cross-subsystem path with the highest priority.
Port
The port number in the local storage system connecting to
the external storage system.
Volume Operation Window 53
Table 7 Cross-subsystem Paths List Details (continued)
Item
Description
WWN
Identification number of the port in the external storage
system.
Pop-up menu
Right-click a row in the Cross-subsystem Paths list (at the
bottom of the window) to perform the following operation:
•
Configure Cross-Subsystem Paths: Opens the Configure
Cross-subsystem Paths dialog box. This dialog box
allows you to add and delete cross-subsystem paths,
and also change the priority of the selected
cross-subsystem path. See “Configure Cross-subsystem
Preview Dialog Box
Use the Preview dialog box to check or cancel the settings that will be applied to the local storage
system. To display the Preview dialog box, click Preview in the Volume Operation window, the
Path Operation window, or the Port Operation window. This document uses the phrase XP External
Storage windows for these three windows.
The contents displayed in the Preview dialog box are displayed in blue and italics in the list of the
XP External Storage windows. The contents displayed in the Preview dialog box have not yet been
applied to the local storage system. When you click Apply on the XP External Storage windows,
the settings in the Preview dialog box are applied to the local storage system. When the settings
are applied, the contents of the Preview dialog box disappear, and the list of the XP External
Storage windows appears normally. When you click Cancel on the XP External Storage windows,
all the settings in the Preview dialog box are canceled.
When the settings in the Preview dialog box are not applied to the local storage system even if
you click Apply on the XP External Storage windows, an error message appears and the erroneous
settings are displayed in blue and italics in the XP External Storage windows. To see the error
detail, click Preview to open the Preview dialog box.
The identical error codes may be displayed for all the errors listed in the Preview dialog box
depending on the type of errors occurred. In this case, check the status of settings and identify the
error source.
54 Using the XP External Storage GUI
Item
Description
Preview Area
A list of the items that are set in the list of the XP External
Storage windows. The items appearing in the preset area
differ depending on the items set in the list of the XP
External Storage windows. The items in the preset area
appear in blue italics in the list of the XP External Storage
windows.
Information Area
The operation information on the settings displayed in the
Preview dialog box appears. The following information is
available:
•
•
Operation: name of the setting operation.
Total Number of Objects in Preview: the number of
settings displayed in the Preview dialog box.
Close
Closes the Preview dialog box and returns to the XP
External Storage windows.
Pop-up menu
Right-click a row in the Preview dialog box to perform the
following operations:
•
Error Message: Displays the error message of the
selected setting.
•
Delete: Cancels the settings selected in the Preview
dialog box.
Path Operation Window
Use the Path Operation window to stop or resume using cross-subsystem paths. To display the Path
Operation window, click Go, External Storage, and then Path Operation on the menu bar of the
Remote Web Console main window.
Path Operation Window 55
Item
Description
Tree
The left pane of the window contains a tree and a list for
changing the tree display. The information displayed in
the list on the right changes corresponding to the items
Status
Provides the cross-subsystem path status in the Status
column in the Path Operation list. The Status column does
not show the status when you open the Path Operation
window, because displaying the cross-subsystem path status
takes longer than displaying other items in the window.
•
Status: Disable: The status is not displayed. Click Status:
Disable to display the status. The button name changes
to Status: Enable.
•
Status: Enable: The status is displayed.
To update the all items in the window including the Status
column, make sure the button name is Status: Enable, then
click File and Refresh on the menu bar of the Remote Web
Console main window.
List
Information on the local storage system and external
storage system appears corresponding to the items selected
in the tree. Sort the list by clicking the column heading.
Operation
Preview
The name of the performed setting operation. Click Preview
to check the details.
Opens the Preview dialog box where you can confirm the
contents set in the list of the Path Operation window. The
contents displayed in the Preview dialog box have not yet
been applied to the local storage system.
56 Using the XP External Storage GUI
Item
Description
Apply
Applies the settings in the Preview dialog box to the local
storage system.
When the settings are applied successfully, they are
removed from the Preview dialog box and the settings in
blue italics in the Path Operation window appear normally.
When the settings are not applied, the error messages are
displayed and the settings in blue italics remain in the Port
Operation window. To see the error detail, click Preview
to open the Preview dialog box.
Cancel
Cancels all the settings in the Preview dialog box.
Table 8 (page 57) shows how the items clicked in the tree control the information appearing in
the list on the right:
Table 8 Path Operation Tree and List
Items selected in the list
Items displayed in the tree
Contents displayed in the list Reference
(Clicked items are
underlined)
Fibre - Local Subsystem
Subsystem
+ Port number
External ports of the local
storage system.
Subsystem
+ Port number
are set to the selected
external ports of the local
storage system.
The same contents are
displayed when you click the
WWN in the tree.
Fibre - External Subsystem
Product name
+ WWN
WWNs of the external
storage system.
Product name
+ WWN
are set to the selected
WWN of the external
storage system.
The same contents are
displayed when you click the
port number in the tree.
Path Operation Window 57
Path Operation Tree
The Path Operation tree, on the left side of the Path Operation window, contains the following:
Item
Description
List
Changes the items displayed in the Path Operation tree.
You can select which side to display the information on
cross-subsystem paths from.
Fibre - Local Subsystem: Displays ports in the local storage
system.
Fibre - External Subsystem: Displays ports (WWNs) in the
external storage system.
Tree
The following items appear in tree format. The information
displayed in the list on the right changes corresponding to
the items clicked in this tree.
When you select Fibre - Local Subsystem from the list, the
following items appear in the tree:
•
Subsystem: The root node of the Path Operation tree
that is always displayed.
•
Port number: The port number of the local storage
system, for which the port attribute is set to External,
appears under Subsystem. One of the following icons
appears:
: Ports in the Standard mode.
: Ports in the Initiator/External MIX mode.
When you select Fibre - External Subsystem from the list,
the following items appear in the tree:
•
Product name of the external volume: The product name
of the external storage system that is connected by XP
External Storage appears as a root node. The display
format is Vendor name: Product name (Serial
number).
•
WWN: The WWNs of the external storage system
appear under the product name of the external storage
system.
Path Operation List (When Subsystem is Clicked)
When you click Subsystem in the Path Operation tree, the external port information that is set to
the local storage system appears in the list on the right.
58 Using the XP External Storage GUI
Item
Port
Description
The external port of the local storage system. One of the
following icons appears:
: Ports in the Standard mode.
: Ports in the Initiator/External MIX mode.
PLI_TOV
The wait time (in seconds) of PLOGI to the external storage
system when the switch is not connected. This value is
automatically set by XP External Storage. You cannot
change the value.
FLI_TOV
Margin
The wait time (in seconds) from the switch to FLOGI when
the switch is connected. This value is automatically set by
XP External Storage. You cannot change the value.
The additional wait time (in seconds) to FLI_TOV (FLOGI
wait time) or PLI_TOV (PLOGI wait time). This value is
automatically set by XP External Storage. You cannot
change the value. As a result, the sum of FLI_TOV time and
the margin time, or the sum of PLI_TOV time and the margin
time is set as a total wait time.
Status
the displayed statuses.
Pop-up menu
Right-click a row in the list to perform the operations:
•
Disconnect Paths: Allows you to stop the use of the
cross-subsystem paths that are connected to the selected
external port of the local storage system. See “Stopping
•
Check Paths: Allows you to resume using the
cross-subsystem paths that are connected to the selected
external port of the local storage system. See “Restoring
Table 9 Status of the Cross-subsystem Path Displayed in the Status
Displayed Item
Description
Normal
The cross-subsystem path is normal.
-
The status of the cross-subsystem path is not retrieved yet.
Click Status in the Path Operation window to change the
name of the button to Status: Enable, and display the status
of the cross-subsystem path.
Unknown
Blockade
The status of the cross-subsystem path is unknown.
The cross-subsystem path is blocked.
Path Operation Window 59
Table 9 Status of the Cross-subsystem Path Displayed in the Status (continued)
Displayed Item
Disconnect
Description
Connecting to the external storage system or the external
volume is intentionally stopped using the Disconnect
Subsystem command or the Disconnect Volume command.
Warning
Checking
There are cross-subsystem paths whose status is not normal.
Check the status of the cross-subsystem paths.
The processing of checking the cross-subsystem path status
is in progress.
Path Operation List (When Product Name is Clicked)
When you click a product name in the Path Operation tree, the WWN indicating the port in the
external storage system appears in the list on the right.
Item
Description
WWN
WWN indicating the port in the external storage system.
WWN appears after the connection setting is completed.
QDepth
The number of Read/Write commands which can be issued
(queued) to the external volume at a time.
I/O TOV
Path Watch
Value specified as the time over of the I/O to the external
volume.
The time from when the connection of all the
cross-subsystem paths to the external volume have been
down to when the external volume is blocked.
Status
the displayed statuses.
Pop-up menu
Right-click a row in the list to perform the operations:
•
•
•
Disconnect Paths: Allows you to stop the use of the
cross-subsystem paths that are connected to the selected
external port of the local storage system. See “Stopping
Check Paths: Allows you to resume using the
cross-subsystem paths that are connected to the selected
external port of the local storage system. See “Restoring
Change WWN Parameter: Opens the Change WWN
Parameter dialog box where you can change the
parameters on the port of the external storage system.
Path Operation List (When Port or WWN is Clicked)
When you click a port or WWN in the Path Operation tree, a cross-subsystem path appears in
the list on the right.
60 Using the XP External Storage GUI
Item
Description
Port
External port in the local storage system.
WWN
WWN indicating the target port in the external storage
system.
Vendor
Vendor name of the external storage system.
Product name of the external storage system.
Serial number of the external storage system.
Product Name
Serial Number
Status
the displayed statuses.
Port Operation Window
Use the Port Operation window to check the settings of ports and set the port attributes. To display
the Port Operation window, click Go, External Storage, and then Port Operation on the menu bar
of the Remote Web Console main window.
Port Operation Window
61
Item
Description
Tree
The left pane of the window contains a tree and a list for
changing the tree display. The information displayed in
the list on the right changes corresponding to the items
selected in the tree.
List
Information on the port appears corresponding to the items
selected in the tree. Sort the list by clicking the column
headings.
Operation
Preview
The name of the performed setting operation. Click Preview
to check the details.
Opens the Preview dialog box where you can confirm the
contents set in the list of the Port Operation window. The
contents displayed in the Preview dialog box have not yet
been applied to the local storage system. For details on
the Preview dialog box, see “Preview Dialog Box”
Apply
Applies the settings in the Preview dialog box to the local
storage system.
When the settings are applied successfully, they are
removed from the Preview dialog box and the settings in
blue italics in the Port Operation window appear normally.
When the settings are not applied, the error messages
appear and the settings in blue italics remain in the Port
Operation window. To see the error detail, click Preview
to open the Preview dialog box.
Cancel
Cancels all the settings in the Preview dialog box.
62
Using the XP External Storage GUI
Port Operation Tree
The Port Operation tree, on the left side of the Port Operation window, contains the following:
Item
Description
List
Changes the items displayed in the Port Operation tree.
You can select Fibre as a PCB type.
Tree
The ports in the local storage system appear in the tree.
The information displayed in the list on the right changes
corresponding to the items clicked in this tree. For instance,
when you click External in the tree, only the ports that port
attributes are set to external are displayed in the Port
Operation list.
•
Subsystem: Nothing appears in the list when you select
Subsystem. Subsystem is selected, when you display
the Port Operation window.
•
External: When you click External, the ports set to the
external port are displayed in the list. The external port
is the port attribute used for XP External Storage. The
external port does not have the High Speed mode.
•
•
Target: When you click Target, the ports set as the target
port are displayed in the list.
Initiator: When you click Initiator, the ports set as the
initiator port (used for XP Continuous Access, TrueCopy
for Mainframe, XP Continuous Access Journal, Universal
Replicator for Mainframe, and so on) are displayed in
the list.
•
•
RCU Target: When you click RCU Target, the ports set
as the RCU target port (used for XP Continuous Access,
TrueCopy for Mainframe, XP Continuous Access Journal,
Universal Replicator for Mainframe, and so on) are
displayed in the list.
Initiator/External: When you click Initiator/External,
the ports for which the Initiator/External MIX mode is
set are displayed in the list.
Port Information List
When you click the items in the Port Operation tree, the following information about the port in
the local storage system appears in the list on the right.
Item
Description
Port
Port number. One of the following icons appears on the
left of each port:
•
•
•
: Ports in the Standard mode.
: Ports in the High Speed mode.
: Ports in the Initiator/External MIX mode.
Attribute
Port attribute. The external ports are used for connecting
to the external storage system. When you want to set the
remote command device, you can use the port for which
the Initiator/External MIX mode has been set.
Port Operation Window 63
Item
Description
PCB Mode
The PCB mode of the port.
•
•
•
Standard
High Speed
MIX (for Initiator/External MIX mode)
The external ports do not have the High Speed mode. For
detailed information on the PCB mode, see the HP
StorageWorks XP24000/XP20000 LUN Manager User
Guide.
Information Area
Pop-up menu
The total number of ports in the Port Operation list (Total
Number of Ports).
Right-click a row in the Port Information list to perform the
following operations.
•
Change to External: Allows you to change the selected
port attribute to external. See “Setting Port Attribute for
•
Change to Target: Allows you to change the selected
port attribute to target. See “Setting Port Attribute for
64 Using the XP External Storage GUI
5 Performing XP External Storage Operations
This chapter describes setting the external volume using XP External Storage.
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
Overview of Setting Operations
The following flow chart illustrates XP External Storage setting operations, which make external
volumes usable from a host.
Overview of Setting Operations 65
Figure 23 Operations of Making External Volumes Usable from a Host
The outlined procedure for making the external volumes usable from a host is as follows:
1. Prepare a volume in the external storage system.
2. Set the port and system parameters for the external storage system.
For the procedure, see the documents for your external storage system.
3. Start Remote Web Console and set the attribute of the port connecting the external storage
system to External in the Port Operation window of XP External Storage (see “Setting Port
4. Map the external volume to the internal volume.
You can map external volumes automatically or manually in the Volume Operation window.
For the difference between automatic mapping and manual mapping, see “Difference between
5. Perform the following operation according to the emulation type that you set for mapping.
•
If you select the emulation type of mainframe, you need to format the volume or perform
the Write to Control Blocks operation using Virtual LVI/LUN (VLL). For the procedure to
format the volume and perform the Write to Control Blocks operation, see the HP
StorageWorks XP24000/XP20000 Virtual LVI/LUN (VLL) and Volume Shredder User
Guide.
•
If you select the emulation type of open-system, you need to define LU paths to a host
using LUN Manager. For the defining LU paths procedure, see the HP StorageWorks
XP24000/XP20000 LUN Manager User Guide.
Setting Port of External Storage System
This section describes the procedure for setting the port of the external storage system. For detailed
information, see the documentation for the external storage system you use.
To set the port of the external storage system:
66 Performing XP External Storage Operations
1. Set the topology information according to the configuration of the connection.
2. According to the configuration, set the data transfer speed.
3. Set the system parameters.
external storage systems.
4. Define the LUN to the port that is set.
Setting Port Attribute for Local Storage System
The port attribute used for XP External Storage must be set to the external port.
If the storage system is partitioned by using XP Disk/Cache Partition, the ports that can be set as
external ports are only the ports allocated to SLPR 0.
To set the port attribute to the external port:
1. Start Remote Web Console, and open the Port Operation window.
2. Make sure that Remote Web Console is in Modify mode.
3. Right-click the port that you want to set to external port in the Port Operation list.
To set multiple ports to external ports at a time, select and right-click all the ports you want to
set.
4. Click Change to External in the pop-up menu.
In the Port Operation list, the attribute of the selected port is changed to External, and the row
of the selected port is displayed in blue italics.
6. Click Apply in the Port Operation window.
The settings are applied to the local storage system and the Port Operation window is displayed
normally. When an error occurs, an error message appears. Verify the details in the Preview
dialog box.
7. Set the topology information according to the configuration of the connection.
When the switch is connected, set the Fabric to Enable. When the switch is not connected,
set the Fabric to Disable and set FC-AL. Set the Connection according to the configuration of
the actual connection. For detailed information on setting the topology information, see the
HP StorageWorks XP24000/XP20000 LUN Manager User Guide.
8. Set the data transfer speed according to the configuration.
For the data transfer speed, select the Auto Negotiation setting.
When connecting an AMS/WMS storage system, use LUN Manager to set the data transfer
speed of the external port to a fixed value other than the Auto. Also, set the data transfer
speed of the target port of the AMS/WMS storage system to the fixed value according to the
data transfer speed of the external port.
Mapping an External Volume Automatically
After setting the attribute of the port used for XP External Storage to the external port, you can map
the external volume as an internal volume.
Before you map the external volume, check whether any application (for example, RAID Manager)
is using the command device. If there is, stop the application.
Setting Port Attribute for Local Storage System
67
External volumes can be mapped either automatically or manually. This section explains automatic
mapping. For the difference between automatic mapping and manual mapping, see “Difference
CAUTION: Do not specify 01 for the LDKC number when you map a volume of which the emulation
type is 3380 series except for 3380-3, 3380-3A, 3380-3B, 3380-3C. Before you apply the
mapping configuration, make sure the LDKC number that is automatically assigned is 00.
To map the external volume automatically:
1. Start Remote Web Console, and open the Volume Operation window.
2. Make sure that Remote Web Console is in Modify mode.
3. Right-click one of the following in the Volume Operation tree:
•
Subsystem: Allows you to create a new path group, and add external volumes to the new
path group.
•
Path group: Allows you to add external volumes to the existing path group.
4. Click Add Volume (Auto) in the pop-up menu, and then click the desired mapping policy in
the submenu.
•
•
When you click the Subsystem in the Volume Operation tree, the Configure
When you click the path group in the Volume Operation tree, the volume discovery is
executed and all the external volumes found by the volume discovery are displayed in
5. Configure cross-subsystem paths in the Configure Cross-subsystem Paths dialog box (see
Configure at least two cross-subsystem paths and change the priority if necessary.
6. Click OK to close the Configure Cross-subsystem Paths dialog box and return to the Volume
Operation window.
The volume discovery is executed, and all the external volumes found by the volume discovery
are mapped. The settings appear in blue italics.
8. Click Apply in the Volume Operation window.
The settings are applied to the local storage system and the Volume Operation window appears
normally. When an error occurs, an error message appears. Verify the details in the Preview
dialog box.
Mapping an External Volume Manually
After setting the attribute of the port used for XP External Storage to the external port, you can map
the external volume as an internal volume.
Before you map the external volume, check whether any application (for example, RAID Manager)
is using the command device. If there is, stop the application.
CAUTION: Do not specify 01 for the LDKC number when you map a volume of which the emulation
type is 3380 series except for 3380-3, 3380-3A, 3380-3B, 3380-3C.
To map the external volume manually:
1. Start Remote Web Console, and open the Volume Operation window.
2. Make sure that Remote Web Console is in Modify mode.
68 Performing XP External Storage Operations
3. Right-click one of the following in the Volume Operation tree:
•
Subsystem: Allows you to create a new path group, and add external volumes to the new
path group
•
Path group: Allows you to add external volumes to the existing path group.
4. Click Add Volume (Manual) in the pop-up menu, and then click the desired mapping policy
in the submenu.
•
•
When you click the Subsystem in the Volume Operation tree, the Configure
When you click the path group in the Volume Operation tree, the volume discovery is
5. Configure cross-subsystem paths in the Configure Cross-subsystem Paths dialog box (see
Configure at least two cross-subsystem paths and change the priority if necessary.
6. Click OK to close the Configure Cross-subsystem Paths dialog box.
The volume discovery is executed and all the external volumes found by the volume discovery
appear in the Add Volume dialog box.
The Add Volume dialog box shows a list of all the external volumes that can be mapped to
the local storage system. To map these volumes, set the external volume parameter or the
LDEV number as explained in the following steps.
external volume that you want to map.
You can select multiple external volumes to make the same settings to them at a time. When
you map LDEVs, you can select the multiple external volumes which have the same emulation
type.
8. Click each command in the pop-up menu and make the settings in the resulting dialog box.
Execute the operations in the following order (a and then b).
Box” (page 72)): Allows you to configure the external volume parameters. After you
configure parameters, click OK to close the displayed dialog box.
b. Configure the LDKC:CU:LDEV number to the LDEVs in the external volume. After you
configure the number, click OK to close the displayed dialog box.
Allows you to specify the LDEV number to the first LDEV in the external volume. The rest
of LDEVs are automatically allocated to the subsequent LDEV number. For the example
(page 74)): Allows you to specify the LDEV number to all the LDEVs in the external volume.
Both commands allow you to specify the interval between LDEV numbers.
When you close the dialog box, the Add Volume dialog box opens.
9. In the Add Volume dialog box, make the settings to all the volumes you want to map (repeat
Delete the external volume that you do not want to map in the Add Volume dialog box. To
delete the external volume, right-click the external volume and click Delete in the pop-up menu.
Mapping an External Volume Manually 69
10. Click OK to close the Add Volume dialog box.
•
When the SSID setting is required, the SSID dialog box opens (see “SSID Dialog Box”
•
When the SSID setting is not required, the Volume Operation window opens. Go to step
11. In the SSID dialog box, right-click an LDEV for which SSID is not specified, and then click SSID
in the pop-up menu.
The Set SSID dialog box opens.
12. In the Set SSID dialog box, select a value from the SSID list and click OK.
The selected value appears in the SSID dialog box.
13. In the SSID dialog box, make the settings to all the LDEVs that you need to set SSID to (repeat
14. Click OK to close the SSID dialog box and return to the Volume Operation window.
The settings appear in blue italics.
15. Verify the settings in the Preview dialog box.
16. Click Apply in the Volume Operation window.
The settings are applied to the local storage system and the Volume Operation window appears
normally. When an error occurs, an error message appears. Verify the details in the Preview
dialog box.
Add Volume Dialog Box
Use the Add Volume dialog box to view the external volume parameter or LDEV number that is
configured to the LDEVs in the external volume. The Add Volume dialog box automatically opens
when you click the Add Volume (Manual) command in the Volume Operation window.
The Add Volume dialog box shows the list of the external volumes that can be mapped to the local
storage system. To map the external volume, you need to configure the external volume parameter
and the LDEV number. The parameter that you have not configured is shown with a hyphen (-) .
To configure the parameter, click the external volume with the parameter that you have not
configured, and open the other dialog boxes from the Add Volume dialog box. Delete the external
volume if the Add Volume dialog box contains the external volume that you do not want to map.
Figure 24 Add Volume Dialog Box
70
Performing XP External Storage Operations
The Add Volume dialog box consists of:
•
◦
◦
◦
◦
◦
◦
Characteristic1: Identification number of the external volume.
ExG: External volume group number and its sequential number.
Emulation Type: Emulation type of the external volume.
LDEV: LDKC:CU:LDEV number assigned to the external volume.
Number of LDEVs: Number of LDEVs that are actually created in the external volume.
SLPR/CLPR: SLPR and CLPR used to access the external volume. Appears when the cache
memory is partitioned using XP Disk/Cache Partition.
◦
◦
Cache Mode: Indicates whether the write data from the host to the external storage system
is propagated synchronously (Disable) or asynchronously (Enable).
Inflow Control: Indicates whether the writing operation to the cache memory is stopped
(Enable) or continued (Disable) when the writing operation to the external volume is
impossible.
◦
◦
◦
◦
◦
Path Mode: Indicates how the cross-subsystem paths work.
Device: Product name reported to the host by the external volume.
Ext. VOL Info: Information about the external volume.
Capacity (blocks): Capacity of the external volume in blocks.
Characteristic2: Extended identification number of the external volume.
•
•
•
OK button
Saves the settings and closes the dialog box.
Cancel button
Cancels the settings and closes the dialog box.
Pop-up Menu
Right-click a row in the Add Volume dialog box to perform the following operations.
Table 10 Pop-up Menu in the Add Volume dialog box
Pop-up menu
Description
Set External Volume Parameter
Opens the Set External Volume Parameter dialog box
where you can set the parameters. See “Set External
LDEV Mapping (Auto)
LDEV Mapping (Manual)
Delete
Opens the LDEV Mapping (Auto) dialog box where you
can specify the LDEV number to the first LDEV in the
external volume. See “LDEV Mapping (Auto) Dialog
Opens the LDEV Mapping (Manual) dialog box where
you can specify the LDEV number to all the LDEVs in the
external volume. See “LDEV Mapping (Manual) Dialog
Allows you to delete the external volume from the Add
Volume dialog box.
Mapping an External Volume Manually
71
Set External Volume Parameter Dialog Box
Use the Set External Volume Parameter dialog box to set the external volume parameter. The Set
External Volume Parameter dialog box opens when you right-click the external volume in the Add
Volume dialog box and click the Set External Volume Parameter in the pop-up menu.
Figure 25 Set External Volume Parameter Dialog Box
The Set External Volume Parameter dialog box consists of:
•
ExG (1-16384)
Group number of the connected external volume. Specify the number using decimal numbers
from 1 to 16384. The E displayed outside of the text box is the capital letter of the external
volume group.
•
Emulation Type
Select the emulation type of the mapped external volume from the list.
Before you map the external volume as an open system volume, first decide the emulation
type for the mapped volume, OPEN-V or other than OPEN-V. To map the external volume as
an open system volume with the emulation type other than OPEN-V, select the Except OPEN-V
check box.
◦
When you clear the Except OPEN-V check box, OPEN-V and available mainframe
emulation types appear in the list.
◦
When you select the Except OPEN-V check box, the emulation types for the open system
other than OPEN-V also appear in the list.
•
•
Number of LDEVs
Select the maximum number of LDEVs that can be created in the external volume when you
map the external volume. This number is different corresponding to the capacity supported
by the emulation type specified in the Emulation Type. The number of LDEVs which are actually
created in the external volume appears in the Number of LDEVs column in the Add Volume
dialog box after you set this parameter in the Set External Volume Parameter dialog box.
Cache mode
Cache mode specifies if the write data from the host is propagated synchronously (Disable)
or asynchronously (Enable) to the external storage system.
Data that is not written by the host (for example, data written by XP Business Copy) is
asynchronously destaged to the external storage system regardless of the Cache Mode setting.
If you set Disable, the bind mode of Cache Residency Manager cannot be set.
72 Performing XP External Storage Operations
•
•
Inflow Control
Inflow Control specifies if the writing operation to the cache memory is stopped (Enable) or
continued (Disable) when the writing operation to the external volume is impossible.
CLPR
When the cache memory is partitioned using XP Disk/Cache Partition, select CLPR used for
accessing to the mapped external volume from the list. The number of SLPR that selected CLPR
belongs is shown at the right of the list. However, when the emulation type for the mainframe
is selected in Emulation Type, you can select only the CLPR that belongs to SLPR number 0.
•
•
OK button
Saves the settings and closes the dialog box.
Cancel button
Cancels the settings and closes the dialog box.
LDEV Mapping (Auto) Dialog Box
Use the LDEV Mapping (Auto) dialog box to specify the LDEV number only to the first LDEV in the
external volume. If you specify the LDEV number to the first LDEV, the subsequent LDEV numbers
are automatically assigned for the rest of LDEVs.
Figure 26 LDEV Mapping (Auto) Dialog Box
Mapping an External Volume Manually
73
The LDEV Mapping (Auto) dialog box consists of:
•
SLPR Limited
To restrict the CU in the CU list to the CU which belongs to the SLPR, select the Limited. To
display all the CU in the CU list without any restriction, select the Unlimited. By default, the
Limited is selected.
•
•
LDKC list
Select the LDKC number of the local storage system to which you want to map the external
volume.
CU list
Select the CU number of the local storage system to which you want to map the external
volume. When you select Limited in the SLPR Limited, the selection range is limited to CU
which belongs to the SLPR.
•
•
Interval list
Select the interval of the LDKC:CU:LDEV number for mapping each volume. The LDEV number
is set to each LDEV with the interval that you specified in this list.
LDEV Map
LDEV map allows you to allocate the LDEV number to each LDEV by clicking cells in a table.
Each cell in the LDEV map represents an internal volume. In the LDEV map, the horizontal
scale indicates tens place digit of the LDEV number, and the vertical scale indicates ones place
digit of the LDEV number. Select a cell for the internal volume on the LDEV map, the selected
cell turns to blue, and the LDEV number which the cell indicates is defined to the LDEV. The
defined internal volume is grayed out, and undefined internal volumes to be mapped appear
in white.
•
•
OK button
Saves the settings and closes the dialog box.
Cancel button
Cancels the settings and closes the dialog box.
LDEV Mapping (Manual) Dialog Box
Use the LDEV Mapping (Manual) dialog box to specify the LDEV number for all the LDEVs in the
external volume.
74
Performing XP External Storage Operations
Figure 27 LDEV Mapping (Manual) Dialog Box
The LDEV Mapping (Manual) dialog box consists of:
•
List
◦
ExG
The external volume group number of the connected external volume specified in the Set
External Volume Parameter dialog box.
◦
LDKC:CU:LDEV
Use the LDKC:CU:LDEV with the LDEV map for assigning the LDEV number. You can either
map an LDEV number to each LDEV one by one, or map a number to multiple LDEVs at
once.
The LDKC:CU:LDEV shows the LDKC numbers, CU numbers, and LDEV numbers of the
external volumes mapped as internal volumes. A hyphen (-) indicates that the external
volumes are not mapped as internal volumes.
To assign an LDEV number to an LDEV, select one or more external volumes whose LDEV
number is a hyphen (-) in the LDKC:CU:LDEV, and select one cell in the LDEV map.
When you select two or more external volumes in the LDKC:CU:LDEV, the other cells are
automatically added to match the number of external volumes that you previously selected
in the LDKC:CU:LDEV. When Interval is set, mapping is performed in intervals of that
number.
Other items are same as the LDEV Mapping (Auto) dialog box.
SSID Dialog Box
Use the SSID dialog box to set the SSID to the LDEVs in the external volume. The storage system
assigns a SSID that identifies each group of LDEV number. If the LDEVs that you created do not
have SSID, you need to assign one using the SSID dialog box. The SSID dialog box opens during
the mapping operation when the SSID setting is required.
Mapping an External Volume Manually
75
Figure 28 SSID Dialog Box
The SSID dialog box consists of:
•
SLPR list
When the storage system is partitioned using XP Disk/Cache Partition, use the SLPR list.
If you select the SLPR Limited check box and select the SLPR number in the SLPR list, only the
SSIDs that can be used for the selected SLPR can be set in the Set SSID dialog box. If you do
not select the SLPR Limited check box, you can set the SSID from all the unused SSIDs regardless
of the selected SLPR number.
•
List
◦
LDEV Boundary:
The range of LDEVs in the selected external volume.
◦
SSID:
The SSIDs allocated to each LDEV. If SSID is not set, a hyphen (-) appears.
•
•
•
OK button
Saves the settings and closes the dialog box.
Cancel button
Cancels the settings and closes the dialog box.
Pop-up Menu
Right-click a row in the SSID column to execute the Set SSID command in the pop-up menu.
Use the Set SSID command to set the SSID to the selected LDEV. When you click the Set SSID,
the following dialog box opens.
Figure 29 Set SSID Dialog Box
76
Performing XP External Storage Operations
SSID (0004–FFFE): Select the SSID from the SSID list. You can select the value for an SSID from
0x0004 to 0xFFFE.
◦
If you have selected the SLPR Limited check box on the SSID dialog box, only the SSIDs
that can be used in SLPR selected on the SSID dialog box appear in the list.
◦
If you have not selected the SLPR Limited check box on the SSID dialog box, all of the
unused SSIDs appear in the list regardless of the selected SLPR.
Example: How to Map LDEVs Automatically
For instance, you map two external volumes that have the same emulation type, and create two
LDEVs in each external volume.
To assign the number which starts 00:01:01 with 255 intervals to total four LDEVs that you created:
1. Select the two external volumes and right-click them in the Add Volume dialog box, and then
click the LDEV Mapping (Auto) in the pop-up menu.
The LDEV Mapping (Auto) dialog box opens.
2. Configure the starting LDEV number and interval as follows:
•
•
•
•
LDKC: 00
CU: 01
Interval: 255
LDEV map: Select the cell in the row 1 and column 00.
3. Click OK.
LDEV numbers are automatically assigned as follows:
•
•
•
•
The first LDEV: 00:01:01
The second LDEV: 00:02:01
The third LDEV: 00:03:01
The fourth LDEV: 00:04:01
However, the Add Volume dialog box shows only the LDEV number assigned for the first LDEV
of each external volume. In this case, 00:01:01... and 00:03:01... appear in the Add Volume
dialog box.
Example: How to Map LDEVs Manually
This example shows how to map two external volumes that have the same emulation type, and
create two LDEVs in each external volume.
To assign the desired number to total four LDEVs that you created:
1. Select the two external volumes and right-click them in the Add Volume dialog box, and then
click the LDEV Mapping (Manual) in the pop-up menu.
The LDEV Mapping (Manual) dialog box opens.
2. Click the LDEV to which you want to assign an LDEV number in the LDKC:CU:LDEV column on
the left of the LDEV Mapping (Manual) dialog box.
3. Select the desired LDKC number and the desired CU number to the specified LDEV from the
list on the right of the LDEV Mapping (Manual) dialog box.
4. Click the cell of the desired LDEV number in the LDEV map on the right of the LDEV Mapping
The selected cell turns blue and the assigned LDEV number appears in the LDKC:CU:LDEV
column.
Mapping an External Volume Manually 77
4).
6. Click OK.
The specified numbers are assigned to the LDEVs. However, the Add Volume dialog box shows
only the LDEV number assigned for the first LDEV of each external volume.
Figure 30 Example of LDEV Mapping (Manual) Dialog Box
You can also assign contiguous LDEV numbers to LDEVs using this dialog box. To assign contiguous
Setting the Cross-subsystem Paths
You need to configure the cross-subsystem path from the internal volume to the external volume
before using the external volume mapped as an internal volume. For details on the cross-subsystem
You can configure the cross-subsystem path when you map the external volume as the internal
volume. You can also add or change the cross-subsystem paths after the mapping operation is
78
Performing XP External Storage Operations
completed. To configure the cross-subsystem paths, use the Configure Cross-subsystem Paths dialog
box.
CAUTION: You cannot delete all the current cross-subsystem paths to substitute newly added
cross-subsystem paths for them in one operation. To replace all the current cross-subsystem paths
with newly added cross-subsystem paths, you need to perform more than two operations and leave
at least one current cross-subsystem path setting when you perform the first operation.
Configure Cross-subsystem Paths Dialog Box
Use the Configure Cross-subsystem Paths dialog box to configure cross-subsystem paths. This dialog
box opens automatically when you add a volume to a new path group using the Add Volume
(Auto) command or the Add Volume (Manual) command. You can also open this dialog box by
clicking the Configure Cross-subsystem Paths command in the Volume Operation window.
You can change the priority, add and delete the cross-subsystem path in the Configure
Cross-subsystem Paths dialog box.
The Volume Operation window displays only the external storage system for which you have
configured the mapping. However, the Configure Cross-subsystem Paths dialog box shows all the
external storage systems connected to the local storage system even without the mapping
configuration. To update the dialog box, click Port Discovery in the upper right of the dialog box.
Figure 31 Configure Cross-subsystem Paths Dialog Box
The Configure Cross-subsystem Paths dialog box consists of:
•
Available Paths (Upper part of the dialog box)
The following three panes appear from the left.
The left pane shows the external storage systems connected to the local storage system.
◦
◦
◦
Vendor: Vendor name.
Product Name: Product name.
Serial Number: Serial number of the product.
Setting the Cross-subsystem Paths 79
The middle pane shows external ports of the local storage system that connects to the external
storage system that you selected in the left pane.
◦
Port: external port of the local storage system. One of the following icons appears:
: Ports in the Standard mode.
: Ports in the Initiator/External MIX mode.
The right pane shows the WWN of the external storage system for which the port attribute is
set to Target. The WWN connecting to the port selected in the middle pane is displayed out
of the WWN of the external storage system selected in the left pane.
◦
WWN: Identification number of the port in the external storage system.
•
Port Discovery button (Upper right of the dialog box)
Allows you to update information in the Available Paths or display the information on all the
external storage systems connected to the local storage system even without the mapping
configuration. When you click Port Discovery, the port discovery dialog box opens.
Figure 32 Port Discovery Dialog Box
The Port Discovery dialog box shows the list of the external ports in the local storage system.
When you click the external port in the list, WWNs of the external storage system connected
to the clicked external port are searched for, and the Available Paths in the Configure
Cross-subsystem Paths dialog box is updated.
NOTE: Depending on the status of external subsystem port, the WWN of the external
subsystem that is connected to the selected external port may not be displayed. If this happens,
change the settings of the external subsystem port and then remove and reinsert the cable.
After you have changed the settings, click Port Discovery.
•
•
Selected Paths (Lower part of the dialog box)
The cross-subsystem paths appear that you have added in the Available Paths.
◦
Priority: Priority of the cross-subsystem paths connecting to the external volume. 1 indicates
the path with the highest priority.
◦
◦
Port: Port of the local storage system that the port attribute is set to External.
WWN: WWN of the external storage system that the port attribute is set to Target.
OK button
Saves the settings and closes the dialog box.
80 Performing XP External Storage Operations
•
•
Cancel button
Cancels the settings and closes the dialog box.
Pop-up Menu
Right-click a row in the Configure Cross-subsystem Paths dialog box to perform the following
operations.
Table 11 Pop-up Menu in the Configure Cross-subsystem Paths dialog box
Right-clicked area
Pop-up menu
Description
WWN in the Available Paths
Add
Allows you to add cross-subsystem
paths. See “Configuring the
Selected Paths
Delete
Allows you to delete the selected
cross-subsystem path. See “Canceling
Raise Priority
Allows you to raise the priority of the
selected cross-subsystem path. See
Lower Priority
Allows you to lower the priority of the
selected cross-subsystem path. See
Configuring the Cross-subsystem Path
You can configure the cross-subsystem path using the Configure Cross-subsystem Paths dialog box.
This section explains the procedure to add a cross-subsystem path to an existing path group. To
create a new path group and configure cross-subsystem paths, you need to operate the mapping
To add the cross-subsystem path to an existing path group:
1. Start Remote Web Console, and open the Volume Operation window.
2. Make sure that Remote Web Console is in Modify mode.
3. Click the path group that you want to add a cross-subsystem path in the Volume Operation
tree.
4. Right-click the cross-subsystem path in Cross-subsystem Paths in the Volume Operation list.
5. Click Configure Cross-subsystem Paths in the pop-up menu.
The Configure Cross-subsystem Paths dialog box opens (see “Configure Cross-subsystem Paths
•
•
External storage system: Select the external storage system.
Port: Select the external port of the local storage system, which is the starting point of the
cross-subsystem path.
•
WWN: Select the WWN of the external storage system, which is the ending point of the
cross-subsystem path.
If the external storage system or the WWN that you want to choose is not displayed in the
dialog box, you can update the information by clicking Port Discovery, selecting the port that
connects to the WWN, and then clicking OK.
Setting the Cross-subsystem Paths
81
7. Right-click the WWN in the WWN, and then click Add in the pop-up menu.
The cross-subsystem path is added to the Selected Paths with the selected information. Configure
more than two cross-subsystem paths for one path group. Change the priority or delete
unnecessary cross-subsystem paths if necessary.
8. Click OK to close the Configure Cross-subsystem Paths dialog box and return to the Volume
Operation window.
The settings appear in blue italics.
10. Click Apply in the Volume Operation window.
The settings are applied to the local storage system and the Volume Operation window appears
normally. When an error occurs, an error message appears. Verify the details in the Preview
dialog box.
Figure 33 Pop-up Menu of Configure Cross-subsystem Paths Dialog Box
Changing the Configured Cross-subsystem Path Priority
To change the cross-subsystem path priority, use the Raise Priority command and the Lower Priority
command displayed in the Configure Cross-subsystem Paths dialog box.
The following is an example of procedure to make the cross-subsystem path to the currently used
path by raising the priority of the cross-subsystem path:
1. Start Remote Web Console, and open the Volume Operation window.
2. Make sure that Remote Web Console is in Modify mode.
3. Click the path group to which the cross-subsystem path belongs in the Volume Operation tree.
4. Right-click the cross-subsystem path in Cross-subsystem Paths in the Volume Operation list.
5. Click Configure Cross-subsystem Paths in the pop-up menu.
The Configure Cross-subsystem Paths dialog box opens.
6. Right-click the cross-subsystem path that you want to change the priority of in the Selected
Paths in the Configure Cross-subsystem Paths dialog box.
7. Click Raise Priority in the pop-up menu
The row of the selected path switches with the one row above.
82 Performing XP External Storage Operations
8. Repeat the operation of the Raise Priority command until the row of the selected path appears
in the head of the Selected Paths list and its Priority column changes to 1.
When the Priority column changes to 1, it means the cross-subsystem path is set as the usually
used one (primary path).
9. Click OK to close the Configure Cross-subsystem Paths dialog box and return to the Volume
Operation window.
The settings appear in blue italics.
11. Click Apply in the Volume Operation window.
The settings are applied to the local storage system and the Volume Operation window appears
normally. When an error occurs, an error message appears. Verify the details in the Preview
dialog box.
Canceling the Cross-subsystem Path Configuration
You can cancel the configuration of the cross-subsystem path using the Configure Cross-subsystem
Paths dialog box.
To cancel the cross-subsystem path configuration:
1. Start Remote Web Console, and open the Volume Operation window.
2. Make sure that Remote Web Console is in Modify mode.
3. Click the path group to which the cross-subsystem path belongs in the Volume Operation tree.
4. Right-click the cross-subsystem path in Cross-subsystem Paths in the Volume Operation list.
5. Click Configure Cross-subsystem Paths in the pop-up menu.
6. In the Configure Cross-subsystem Paths dialog box, right-click the cross-subsystem path that
you want to cancel the configuration in the Selected Paths in the Configure Cross-subsystem
Paths dialog box.
7. Click Delete in the pop-up menu.
The configuration of the selected cross-subsystem path is canceled, and the cross-subsystem
path is deleted from the Cross-subsystem Paths.
8. Click OK to close the Configure Cross-subsystem Paths dialog box and return to the Volume
Operation window.
The settings appear in blue italics.
10. Click Apply in the Volume Operation window.
The settings are applied to the local storage system and the Volume Operation window appears
normally. When an error occurs, an error message appears. Verify the details in the Preview
dialog box.
Changing the Cross-subsystem Path
To change the cross-subsystem path, cancel the current cross-subsystem path, and configure another
cross-subsystem path as a new cross-subsystem path. To cancel the current cross-subsystem path,
Replacing All Cross-subsystem Paths with Newly Added Cross-subsystem Paths
This section explains how to change all the current cross-subsystem paths to newly added
cross-subsystem paths with an example.
Setting the Cross-subsystem Paths 83
Figure 34 (page 84) shows the overview of the operation and the status of the cross-subsystem
paths. When you delete the current cross-subsystem paths (A and B) and add new cross-subsystem
paths (C and D), you cannot delete both the current cross-subsystem paths (A and B) in one operation
because at least one current path that functions normally has to be configured. In this case, you
need to delete the cross-subsystem path A and add the cross-subsystem path C, and then apply
the setting. After that, you need to delete the cross-subsystem path B and add the cross-subsystem
path D.
Figure 34 Overview of Operation to Replace All the Current Cross-subsystem Paths with Newly-added
Cross-subsystem Paths
To replace all the current cross-subsystem paths (A and B) with newly added cross-subsystem paths
(C and D):
1. Execute the Disconnect Paths command on the cross-subsystem path A.
2. Disconnect the cable that the cross-subsystem path A uses, and connect the cable that the
cross-subsystem path C uses.
3. Cancel the configuration of the cross-subsystem path A, and add the cross-subsystem path C.
4. Click Apply to apply the settings of the cross-subsystem paths A and C.
5. Make sure the status of the cross-subsystem path C is Normal.
At this point, the cross-subsystem paths B and C are configured as normal paths.
Take the following steps to delete the cross-subsystem path B and add the cross-subsystem
path D.
6. Execute the Disconnect Paths command on the cross-subsystem path B.
84 Performing XP External Storage Operations
7. Disconnect the cable that the cross-subsystem path B uses, and connect the cable that the
cross-subsystem path D uses.
8. Cancel the configuration of the cross-subsystem path B, and add the cross-subsystem path D.
9. Click Apply to apply the settings of the cross-subsystem paths B and D.
10. Make sure the status of the cross-subsystem path D is Normal.
Checking the External Volume Details
You can check the details on the mapped external volume using the LDEV Information dialog box,
and the details on the mapping path using the Mapping Path Information dialog box.
To check the external volume details:
1. Start Remote Web Console, and open the Volume Operation window.
2. Click the path group in the Volume Operation tree.
3. Right-click the external volume that you want to check in the Volume Operation list.
4. Select one of the following commands in the pop-up menu.
•
•
Mapping Path Information: Displays the Mapping Path Information dialog box (see
5. Verify the details in the displayed dialog box.
6. Click Close to close the displayed dialog box and return to the Volume Operation window.
LDEV Information Dialog Box
The LDEV Information dialog box shows the information on the LDEVs created in the external
volumes. Each row displays one LDEV information.
Figure 35 LDEV Information Dialog Box
The LDEV Information dialog box consists of:
•
List
◦
◦
◦
LDKC:CU:LDEV: The LDKC:CU:LDEV number of the LDEVs created in the external volume.
Emulation Type: The emulation type of the external volume set when it was mapped.
Capacity: Capacity of the external volume. When the emulation type of the mapped
external volume is for the open system, the capacity is shown in Blocks. When the
Checking the External Volume Details 85
emulation type of the mapped external volume is for the mainframe system, the capacity
is shown in Cylinder.
•
Close button
Closes the LDEV Information dialog box.
Mapping Path Information Dialog Box
The Mapping Path Information dialog box shows the information on the mapping paths that connect
the internal volume and the external volume.
Figure 36 Mapping Path Information Dialog Box
The Mapping Path Information dialog box consists of:
•
List
◦
Priority: Priority of the mapping path. 1 indicates the mapping path with the highest
priority.
◦
Port: The port number in the local storage system connecting to the external storage
system.
◦
◦
◦
WWN: Identification number of the port in the external storage system.
LUN: LU number set to the external volume.
terms that are displayed on the Mapping Path Information dialog box. For required actions
•
•
Close button
Closes the Mapping Path Information dialog box.
Pop-up menu
The Mapping Path Information dialog box does not have a pop-up menu that can be displayed.
Table 12 Status of the Mapping Paths in the Mapping Path Information Dialog Box
Displayed Item
Description
Normal
The mapping path is normal.
-
The status of the mapping path is not retrieved yet. Click Status:Disable and
change the button name to Status: Enable in the Volume Operation window to
display the status of the mapping path.
Unknown
Blockade
The status of the mapping path is unknown.
The mapping path is blocked.
86 Performing XP External Storage Operations
Table 12 Status of the Mapping Paths in the Mapping Path Information Dialog Box
(continued)
Displayed Item
Description
External device
setting changed
The setting of the external storage system has been changed. For example, the
path definition was deleted, or the external storage system itself was replaced
by another device.
LDEV size reduced
The setting of the volume capacity of the external storage system has been
changed (the volume capacity was reduced).
Not ready
The reply from the external storage system was NOT READY.
The reply from the external storage system was ILLEGAL REQUEST.
Illegal request
Command aborted The reply from the external storage system was ABORTED COMMAND.
Busy
The external storage system is busy.
LDEV reserved
Response error
Initiator port
The external storage system is reserved.
The external storage system is blocked due to an abnormal reply.
The port attribute of the external storage system has been changed to the initiator
port.
Unknown port
The port attribute of the external storage system is unknown.
Cannot detect port
The path has been removed or the port of the external storage system cannot be
found.
Internal error
Timeout
The program error occurred or there is a logical contradiction.
Processing was retried because an abnormal reply was returned, however, the
processing has timed out.
Passive
The port of the external storage system is not active. The port status is normal but
the port is not used for I/O.
Standby
The port of the external storage system is standing by. The port status is normal
but cannot receive I/O.
Target error
Port failures, such as controller blockade, are detected on the external storage
system side.
Checking
The process of checking the mapping path status is in progress.
Disconnect
Connection to the external storage system or the external volume is intentionally
stopped using the Disconnect Subsystem command or the Disconnect Volume
command.
Unavailable
Backoff
The reply from the external storage system was Unavailable. The external storage
system demands to change the connected port. Once the status becomes
Unavailable, the primary path is changed to the alternate path that is in the
Standby status. When the primary path changes, the status of the path becomes
Normal.
The reply from the external storage system was Backoff. The status of the path is
waiting for recovery because a temporary error has occurred in the volume of
the external storage system. Even if the status of the primary path becomes this
status, the primary path is not changed to the alternate path immediately. After
the error recovery, the status becomes Normal. If the status cannot be recovered
from the error, the path status is changed to the other status.
Device check error
Medium error
An external volume is mapped, but you cannot access the volume in the external
storage system.
The volume in the external storage system becomes inaccessible.
Checking the External Volume Details
87
Turning On or Off the Storage System
This section describes how to turn on or off the local storage system and the external storage system
after the XP External Storage operation has been started.
This section includes the following procedures, and uses XP Business Copy as an example:
•
•
•
•
When you turn on or off the power supply of only the external storage system, you need to execute
the XP External Storage commands. For details on these commands, see “Commands for Turning
CAUTION:
•
When you want to turn off both the local storage system and the external storage system, you
first need turn off the local storage system, and then turn off the external storage system.
•
When you want to turn on both the local storage system and the external storage system, you
first need to turn on the external storage system, and then turn on the local storage system.
Commands for Turning On or Off Only the External Storage System
When you turn on or off the power supply of only the external storage system while the power
supply of the local storage system remains on, you need to execute the following XP External
Storage commands:
•
Disconnect Subsystem command
The Disconnect Subsystem command should be executed when the external storage system is
maintained or stopped on purpose. When the Disconnect Subsystem command is executed,
the acceptance of the host I/O to the external volume that is mapped as the internal volume
is stopped. Then all the data that should belong to the external volume is written to the external
volume from the cache memory of the local storage system (all the data is destaged).
When you want to perform the same processing of the Disconnect Subsystem command on
individual volume, you can use the Disconnect Volume command. To delete the external volume
mapping individually, you first need to execute the Disconnect Volume command and then
the Delete Volume command. For the procedure to delete the external volume mapping, see
•
Check Paths & Restore Volume command
The Check Paths & Restore Volume command checks if the defined information about the
mapped external volume and the actual external volume status match. If the external volume
can be used as the mapped volume as the result of the check, the external volume is set to
accept the I/Os, and you can continue using the external volume as a mapped volume.
The Check Paths & Restore Volume command can be used to restore the external volume,
which is set to reject the host I/O by the Disconnect Subsystem command or the Disconnect
Volume command, as the mapped volume. The Check Paths & Restore Volume command can
be executed for both the whole storage system and for the individual volume.
If an error occurs in the path, first remove the error in the path to make the path restorable,
and then execute the Check Paths & Restore Volume command.
88 Performing XP External Storage Operations
When the Check Paths & Restore Volume command is executed and the external volume is
ready to be restored as the mapped volume, the external volume is set to accept the I/Os and
you can resume using the external volume as a mapped volume. However, if the external
volume is not ready to be restored, the external volume status remains blocked.
Turning On or Off Only the External Storage System
To turn off the power supply of the external storage system (to turn off on purpose):
1. Stop the read or write I/O to the external volume that is mapped as a local storage system
internal volume and is contained in the external storage system that you want to turn off.
2. Execute the Disconnect Subsystem command for the external storage system that you want to
turn off.
The additional I/O to the external volume is stopped and all the data in the local cache
memory is written in the external volume (all the data is destaged).
3. Perform other operations that are required before turning off the local storage system.
4. Turn off the power supply of the external storage system.
CAUTION:
•
After you have executed the Disconnect Subsystem command, but you need to use the mapped
external volume again, execute the Check Paths & Restore Volume command.
•
To turn on the power supply of the external storage system to restart from the turned off status:
1. Turn on the external storage system that contains the external volume, which is mapped
as an internal volume.
2. Execute the Check Paths & Restore Volume command of the XP External Storage.
•
When the external storage system is turned off after the Disconnect Subsystem command is
executed, you cannot access the mapped external volume from the local storage system as
you just turn the external storage system on. It is necessary to execute the Check Paths & Restore
Volume command to resume using the mapped external volume. The Check Paths & Restore
Volume command checks the defined information and the actual status of the external volume
mapped as an internal volume. If the external volume is ready to be used as a mapped volume,
the volume is set to accept the I/Os and you can resume using the volume as a mapped
volume.
Turning On or Off Only the Local Storage System
To turn off the power supply of the local storage system (to turn off on purpose):
1. Stop the read or write I/O to the external volume that is mapped as a local storage system
internal volume.
2. Perform other operations that are required before turning off the local storage system.
3. Turn off the power supply of the local storage system.
All the data for the external volume in the local cache memory is written in the external volume
(all the data is destaged).
To turn on the power supply of the local storage system to restart from the turned off status:
Turning On or Off the Storage System 89
1. Turn on the external storage system that contains the external volume, which is mapped as an
internal volume.
2. Turn on the power supply of the local storage system.
CAUTION:
•
When the local storage system is turned off after the Disconnect Subsystem command is
executed, you cannot access the mapped external volume from the local storage system as
you just turn the local storage system on. It is necessary to execute the Check Paths & Restore
Volume command to resume using the mapped external volume. The Check Paths & Restore
Volume command checks whether there is a match between the defined information and the
actual status of the external volume mapped as an internal volume. If the external volume is
ready to be used as a mapped volume, the volume is set to accept the I/Os and you can
resume using the volume as a mapped volume.
•
When the Disconnect Subsystem or Disconnect Volume command is executed and all the data
in the cache memory is written to the external volume, Disconnect appears for Ext. VOL Status
in the Volume Operation window.
Turning On or Off Both Storage Systems
This section explains how to turn on or off the power supply of the local and external storage
systems, and uses XP Business Copy as an example.
To turn off the power supply of both storage systems:
1. Stop the read or write I/O to the local storage system.
All read and write I/Os with Fibre Channel connections should be stopped.
2. Split all XP Business Copy pairs (pairsplit operation).
For details on the pairsplit operation, see the HP StorageWorks XP24000/XP20000 Business
Copy Software User Guide.
3. Turn off the power supply of the local storage system.
CAUTION: Make sure that the power supply of the local storage system is completely off
and then go on to the next step.
4. Turn off the power supply of the external storage system.
CAUTION: Make sure that the power supply of the external storage system is completely
off.
To turn on the power supply of both storage systems:
90 Performing XP External Storage Operations
1. Turn on the power supply of the external storage system.
CAUTION: Make sure that the power supply of the external storage system is completely on
and then go on to the next step.
2. Turn on the power supply of the local storage system.
CAUTION: Make sure that the power supply of the local storage system is completely on
and then go on to the next step.
3. Resynchronize all XP Business Copy pairs (pairresync operations).
For details on the pairresync operation, see the HP StorageWorks XP24000/XP20000 Business
Copy Software User Guide.
4. Start the read or write I/O to the local storage system.
All read and write I/Os with Fibre Channel connections should be started.
Disconnecting External Storage System or Disconnecting External Volume
The Disconnect Subsystem command and the Disconnect Volume command allow you to disconnect
the external volume. You need to disconnect the external volumes, for example, before you turn
the power supply off of the local storage system or the external storage system for maintenance,
or before you delete the external volume mapping. In addition, before you access the mapped
external volumes from the external storage system, disconnect the external volumes. After you finish
using the external volumes from the external storage system and need to access the external volumes
from the local storage system, resume using the external volumes by following the procedure in
As you execute the Disconnect Subsystem command or the Disconnect Volume command, the
mapped external volume stops accepting host I/O, and all the data in the cache memory is written
into the external volume (all the data is destaged).
The settings of the mapping are preserved, even though the external volume is disconnected using
the Disconnect Subsystem command or the Disconnect Volume command. Therefore, you can resume
using the external volume as a mapped volume with the former settings, even though once you
have disconnected the external volume.
Table 13 Operations Required before Disconnecting External Volumes
If the External Volume is Used in this way
This Operation is Required
I/Os to the external volume from the open system host are Stop the host I/Os to the volume and unmount from the
in progress.
host.
The host I/Os to the specified volume are forcibly stopped
if you disconnect an external volume when I/Os from the
open system host are in progress.
The external volume is online from the mainframe host.
Stop the host I/Os to the volume and perform the Vary
Offline operation.
The external volume includes the LDEVs that are set as the Delete the pairs.
pair of the copy program products.1
However, you can disconnect external volumes without
deleting pairs when the XP Business Copy pair status is
PSUE or the ShadowImage for Mainframe pair status is
Suspend.
The external volume includes the LDEVs that are registered Change the status of the XP Snapshot pair to PAIR.
to a pool for XP Snapshot as pool volumes.
Disconnecting External Storage System or Disconnecting External Volume
91
Table 13 Operations Required before Disconnecting External Volumes (continued)
If the External Volume is Used in this way
This Operation is Required
The external volume includes the LDEVs that are registered Perform the following operations on all the XP Thin
to a pool for XP Thin Provisioning as pool volumes.
Provisioning volumes (V-VOLs) that are associated with a
pool to which the external volume is registered.
•
•
Stop the use of the XP Thin Provisioning volumes.
Block the XP Thin Provisioning volumes by using the VLL
function for blocking volumes.
The external volume includes the LDEVs for which the
migration processing of XP Auto LUN is in progress.
Delete the migration plans.
1
The copy program products include XP Business Copy, ShadowImage for Mainframe, XP Continuous Access Journal,
Universal Replicator for Mainframe, XP Continuous Access, TrueCopy for Mainframe, and XP Snapshot.
CAUTION: The cautions on the Disconnect Subsystem command and the Disconnect Volume
command are as follows:
•
After you have executed the Disconnect Subsystem command or the Disconnect Volume
command, click the Refresh command ( ) on the Remote Web Console main window to
update the information, and check the current progress status.
•
When the Disconnect Subsystem command or the Disconnect Volume command is executed,
the displayed information for Ext. VOL Status in the Volume Operation window becomes Cache
Destage. Even if there is no data left in the cache memory, the displayed status remains as
Cache Destage, until the processing of the Disconnect Subsystem command or the Disconnect
Volume command has completed.
•
When the Disconnect Subsystem command or the Disconnect Volume command is executed
and all the data in the cache memory is written to the external volume, the displayed information
for Ext. VOL Status in the Volume Operation window becomes Disconnect.
Disconnecting All External Volumes (Disconnect Subsystem)
To disconnect all the external volumes in the external storage system at once:
1. Start Remote Web Console, and open the Volume Operation window.
2. Make sure that Remote Web Console is in Modify mode.
3. Right-click the product name that you want to disconnect in the Volume Operation tree.
4. Click Disconnect Subsystem in the pop-up menu.
The settings appear in blue italics.
5. Verify the settings in the Preview dialog box.
6. Click Apply in the Volume Operation window.
The settings are applied to the local storage system and the Volume Operation window appears
normally. When an error occurs, an error message appears. Verify the details in the Preview
dialog box.
CAUTION: To access the external storage system after you have executed the Disconnect
Subsystem command, you need to execute the Check Paths & Restore Volume command.
Disconnecting an Individual External Volume (Disconnect Volume Operation)
To disconnect an individual external volume:
1. Start Remote Web Console, and open the Volume Operation window.
2. Make sure that Remote Web Console is in Modify mode.
92 Performing XP External Storage Operations
3. Click the product name in the Volume Operation tree.
4. Right-click the external volume that you want to change in the Volume Operation list.
5. Click Disconnect Volume in the pop-up menu.
The settings appear in blue italics.
6. Verify the settings in the Preview dialog box.
7. Click Apply in the Volume Operation window.
The settings are applied to the local storage system and the Volume Operation window appears
normally. When an error occurs, an error message appears. Verify the details in the Preview
dialog box.
CAUTION: To access the external storage system after you have executed the Disconnect
Volume command, execute the Check Paths & Restore Volume command.
You can also disconnect an individual external volume by using a spreadsheet. For more information
about disconnecting an individual external volume by using a spreadsheet, see “Disconnecting an
Checking Connection Status and Resuming External Volume Operation
You can resume external volume operation by executing the Check Paths & Restore Volume command
in the following cases:
•
•
The Check Paths & Restore Volume command is required to be executed to resume using the
disconnected external volume using the Disconnect Subsystem command or the Disconnect
Volume command.
When the errors occur in all the cross-subsystem paths, the local storage system makes the
status of external volume to Blockade. In this case, execute the Check Paths & Restore Volume
command.
If the status of the external volume cannot be restored even though the Check Paths & Restore
Volume command is executed, restore the path to the external storage system as described
Restore Volume command to make the external volume in the Blockade status usable.
•
When the Check Paths & Restore Volume command is executed for the disconnected external
volume for which the mapping settings are preserved, the defined mapping setting and the
current status of the external volume are compared and checked if the settings match the actual
status. The path status and all other mapping configuration definitions are checked. If the
external volume can be resumed as a mapped volume as a result of the checking processing,
the volume status is set to be available for the I/O operation.
When the Check Paths & Restore Volume command is executed and the external volume is ready
to be restored as the mapped volume, the external volume is set to accept the I/Os and you can
resume using the external volume as a mapped volume. However, if the external volume is not
ready to be resumed, the status of the disconnected volume remains as Blockade.
CAUTION: After you have executed the Check Paths & Restore Volume command, check the
current progress status. To refresh the displayed information, make sure the button name on the
upper right of the Remote Web Console main window is Status: Enable, and click File and Refresh
on the menu bar of the Remote Web Console main window.
Resuming All External Volumes (Check Paths & Restore Volume)
To resume all the external volumes in the external storage system at once:
Checking Connection Status and Resuming External Volume Operation 93
1. Start Remote Web Console, and open the Volume Operation window.
2. Make sure that Remote Web Console is in Modify mode.
3. Right-click the product name that you want to resume connection in the Volume Operation
tree.
4. Click Check Paths & Restore Volume in the pop-up menu.
The settings appear in blue italics.
6. Click Apply in the Volume Operation window.
The Ext. VOL Status in the Volume Operation window changes to Checking. When the checking
processing of mapping path status is completed, and the external storage system can be
resumed, the Ext. VOL Status changes to Normal. If the external storage system cannot be
resumed, the Ext. VOL Status changes to Blockade.
Resuming an Individual External Volume (Check Paths & Restore Volume Operation)
To resume an individual external volume:
1. Start Remote Web Console, and open the Volume Operation window.
2. Make sure that Remote Web Console is in Modify mode.
3. Click the path group in the Volume Operation tree.
4. Right-click the external volume that you want to resume connection in the Volume Operation
list.
5. Click Check Paths & Restore Volume in the pop-up menu.
The settings appear in blue italics.
7. Click Apply in the Volume Operation window.
The Ext. VOL Status in the Volume Operation window changes to Checking. When the checking
processing of mapping path status is completed, and the external volume can be resumed,
the Ext. VOL Status changes to Normal. If the external volume cannot be resumed, the Ext.
VOL Status changes to Blockade.
You can also resume an individual external volume operation by using a spreadsheet. For more
information about resuming an individual external volume by using a spreadsheet, see “Resuming
Stopping the Use of Paths to the External Volume (Disconnect Paths)
Use the Disconnect Paths command to prepare for stopping the use of the cross-subsystem path.
For example, when you want to maintain one of the cross-subsystem paths, you can stop the
specified cross-subsystem path while the local storage system is still connected to the external
volume. To resume the use of the cross-subsystem path that is stopped by the Disconnect Paths
command, use the Check Paths command.
The Disconnect Paths command is not for the actual disconnection of the cross-subsystem path to
the external volume. You need to confirm that some normal cross-subsystem paths to the external
volume is set, other than the cross-subsystem path for which you plan to execute the Disconnect
Paths command.
To stop the use of the paths to the external volume:
1. Start Remote Web Console, and open the Path Operation window.
2. Make sure that Remote Web Console is in Modify mode.
94
Performing XP External Storage Operations
3. Select one of the following from the list above the Path Operation tree.
•
Fibre - Local Subsystem: Displays the ports in the local storage system. Select Fibre - Local
Subsystem to stop the use of all the cross-subsystem paths connected to the specified port
in the local storage system.
•
Fibre - External Subsystem: Displays the WWNs in the external storage system. Select
Fibre - External Subsystem to stop the use of all the cross-subsystem paths connected to
the specified WWNs (ports) in the external storage system.
4. Click Subsystem or the product name in the Path Operation tree.
5. Right-click the port or WWN that you want to stop the use of in the Path Operation list.
6. Click Disconnect Paths in the pop-up menu.
The settings appear in blue italics.
8. Click Apply in the Path Operation window.
The settings are applied to the local storage system and the Path Operation window appears
normally. When an error occurs, an error message appears. Verify the details in the Preview
dialog box.
Restoring the Paths to the External Volume (Check Paths)
Use the Check Paths command to resume using the cross-subsystem path which was stopped by
using the Disconnect Paths command. Make sure that the path is in a status that can be restored.
To restore the path to the external volume:
1. Start Remote Web Console, and open the Path Operation window.
2. Make sure that Remote Web Console is in Modify mode.
3. Select one of the following from the list above the Path Operation tree.
•
Fibre - Local Subsystem: Displays the ports in the local storage system. Select Fibre - Local
Subsystem to restore all the cross-subsystem paths connected to the specified port in the
local storage system.
•
Fibre - External Subsystem: Displays the WWNs in the external storage system. Select
Fibre - External Subsystem to restore all the cross-subsystem paths connected to the
specified WWNs (ports) in the external storage system.
4. Click Subsystem or the product name in the Path Operation tree.
5. Right-click the port or WWN that you want to restore in the Path Operation list.
6. Click Check Paths in the pop-up menu.
The settings appear in blue italics.
8. Click Apply in the Path Operation window.
The settings are applied to the local storage system and the Path Operation window appears
normally. When an error occurs, an error message appears. Verify the details in the Preview
dialog box.
Changing the Cache Mode Setting of the External Volume
You can change the cache mode of the external volume in the Volume Operation window. To
change the cache mode of the external volume, right-click the external volume, click Change Cache
Mode in the pop-up menu, and then click Enable or Disable.
Data that is not written by the host (for example, data written by XP Business Copy) is asynchronously
destaged to the external storage system regardless of the Cache Mode setting.
Restoring the Paths to the External Volume (Check Paths) 95
Check the following before changing the cache mode of the external volume.
•
Whether the volume is not set as a volume that constitutes a part of a LUSE volume.
When it is set as a volume that constitutes a part of a LUSE volume, the cache mode setting
should be the same among all volumes that constitute a LUSE volume.
•
Whether the bind mode of Cache Residency Manager is not set.
When the bind mode is set, you cannot change the cache mode from Enable to Disable. To
change the cache mode to Disable, cancel the setting for Cache Residency Manager or change
the cache residency mode to the priority mode.
•
•
Whether the volume is not registered to a pool.
When a volume is registered to a pool as a pool volume, the cache mode setting should be
the same among all the pool volumes in the pool.
Whether the volume is not a remote command device.
When the volume is a remote command device, you cannot change the cache mode from
Disable to Enable.
To change the cache mode of the external volume:
1. Start Remote Web Console, and open the Volume Operation window.
2. Make sure that Remote Web Console is in Modify mode.
3. Click the path group in the Volume Operation tree.
4. Right-click the external volume that you want to change in the Volume Operation list.
5. Click Change Cache Mode in the pop-up menu and click Enable or Disable in the submenu.
The settings appear in blue italics.
7. Click Apply in the Volume Operation window.
The settings are applied to the local storage system and the Volume Operation window appears
normally. When an error occurs, an error message appears. Verify the details in the Preview
dialog box.
Changing the Inflow Control Setting of the External Volume
You can change the inflow control setting of the external volume in the Volume Operation window.
To change the inflow control setting of the external volume, right-click the external volume, click
Inflow Control in the pop-up menu, and then click Enable or Disable.
To change the inflow control setting of the external volume:
1. Start Remote Web Console, and open the Volume Operation window.
2. Make sure that Remote Web Console is in Modify mode.
3. Click the path group in the Volume Operation tree.
4. Right-click the external volume that you want to change in the Volume Operation list.
5. Click Inflow Control in the pop-up menu and click Enable or Disable in the submenu.
The settings appear in blue italics.
7. Click Apply in the Volume Operation window.
The settings are applied to the local storage system and the Volume Operation window appears
normally. When an error occurs, an error message appears. Verify the details in the Preview
dialog box.
96 Performing XP External Storage Operations
Changing the Port Setting of the External Storage System
You can change the setting of the port of the external storage system in the Path Operation window.
For changing the setting of the port, use the Change WWN Parameter dialog box.
CAUTION:
•
•
•
If the default setting has no problem, use the default setting as it is.
For the volume used in usual I/O, set I/O TOV within 15 seconds.
For changing the setting, match the value to the recommended value of the external storage
system.
To change the port setting of the external storage system:
1. Start Remote Web Console, and open the Path Operation window.
2. Make sure that Remote Web Console is in Modify mode.
3. Select Fibre - External Subsystem from the list above the Path Operation tree.
4. Click the product name in the Path Operation tree.
5. Right-click the WWN that you want to change the setting in the Path Operation list.
6. Click Change WWN Parameter in the pop-up menu.
7. Change the set parameter of the selected port on the Change WWN Parameter dialog box.
8. Click OK to close the Change WWN Parameter dialog box and return to the Path Operation
window.
The selected items appear in blue italics.
9. Verify the settings in the Preview dialog box.
10. Click Apply in the Path Operation window.
The settings are applied to the local storage system and the Path Operation window appears
normally. When an error occurs, an error message appears . Verify the details in the Preview
dialog box.
Change WWN Parameter Dialog Box
Figure 37 Change WWN Parameter Dialog Box
The Change WWN Parameter dialog box consists of:
•
QDepth (2-128): The number of Read/Write commands which can be issued (queued) to the
external volume at a time. The value that can be set ranges from 2 to 128. The default value
is 8.
•
•
I/O TOV (5-240): Value specified as the time over of the I/O to the external volume. The value
that can be set ranges from 5 to 240 (in seconds). The default value is 15.
Path Blockade Watch (5-180): The time from when the connection of all the paths to the external
volume have been down to when the external volume is blocked. The commands from the host
Changing the Port Setting of the External Storage System
97
are accepted until the time set for this parameter has passed. After the time set for this parameter
has passed, the path status becomes Blockade. The value that can be set ranges from 5 to
180 (seconds). The default value is 10.
Performing Maintenance for External Subsystem
If a Not Readymessage occurs in the external storage system when performing maintenance,
or during the reboot of the controller of the external storage system by the firmware update, the
external storage system might be blocked. This blockade of the external storage system can be
prevented by setting a system option 725. To set the system option mode 725, contact your HP
service representative.
Editing Mapping Policy
You choose mapping policy when you map an external volume as an internal volume using the
Add Volume commands. This section explains how to edit the default mapping policy. For details
To edit the mapping policy:
1. Start Remote Web Console, and open the Volume Operation window.
2. Make sure that Remote Web Console is in Modify mode.
3. Right-click Subsystem in the Volume Operation tree.
4. Click Edit Policy in the pop-up menu.
The Edit Policy dialog box opens.
5. Click Default Policy in the Pattern.
6. Edit the settings in the Policy.
7. Click Close to close the Edit Policy dialog box.
The mapping policy changes and then the Volume Operation window opens.
Edit Policy Dialog Box
Use the Edit Policy dialog box to edit the mapping policy.
Figure 38 Edit Policy Dialog Box
98 Performing XP External Storage Operations
The Edit Policy dialog box consists of:
•
•
Pattern: Mapping policies. Default Policy is prepared.
Policy: The content of the selected mapping policy is displayed.
◦
Emulation Type: The emulation type of the external volume. To select an emulation type
other than OPEN-V, select the Except OPEN-V check box and select the emulation type
from the list.
◦
◦
◦
◦
CLPR: CLPR used for accessing to the mapped volume when the cache memory is
partitioned using XP Disk/Cache Partition.
SLPR: SLPR that the selected CLPR belongs to. When the emulation type for the mainframe
is selected in Emulation Type, you can only select CLPR that belongs to SLPR number 0.
Cache mode: Indicates if the write I/O from the host is propagated synchronously (Disable)
or asynchronously (Enable) to the external storage system.
Inflow Control: Indicates the writing operation to the cache memory is stopped (Enable)
or continued (Disable) when the writing operation to the external volume is impossible.
◦
◦
Number of LDEVs: Maximum number of LDEVs to be created in the external volume.
Auto Discovery of Ports: Indicates whether to search for the WWN connected to all the
external ports (Enable) or to search for the WWN connected to only the external port
which you specify (Disable). If you set Enable, port discovery is automatically executed
before the Configure Cross-subsystem Paths dialog box opens.
•
Close button
Close the Edit Policy dialog box.
Deleting the External Volume Mapping (Delete Volume Command)
You can start the operation of deleting the external volume mapping from the Volume Operation
window. To delete the mapping of the external volume, click the Delete Volume command in the
pop-up menu displayed in the Volume Operation window. Though you can delete the setting of
mapping for an internal volume and an external volume using the Delete Volume command, you
cannot delete data in the external volume. You cannot delete data in the internal volume either.
You can also delete the external volume mapping by using a spreadsheet. For more information
about deleting the external volume mapping by using a spreadsheet, see “Deleting the External
Check the following before deleting the external volume mapping.
•
Whether the execution of any application (for example, RAID Manager) that is using the
command device is in progress or not.
If the execution of any application that is using the command device is in progress, stop the
application.
•
Whether the Disconnect Subsystem command or the Disconnect Volume command is executed.
All the data in the cache memory must be written into the mapped external volume using the
Disconnect Subsystem command or the Disconnect Volume command. For detailed information
on the Disconnect Subsystem command and the Disconnect Volume command, see
•
Whether the volume is set as a volume that configures a LUSE volume.
When it is set as a volume that configures a LUSE volume, you cannot delete the external
volume mapping.
Deleting the External Volume Mapping (Delete Volume Command) 99
•
•
Whether an LU path is set.
When an LU path is set to the mapped volume, you cannot delete the external volume mapping.
Whether the volume is set to configure the XP Continuous Access pair, XP Continuous Access
Journal pair, XP Business Copy pair, or XP Snapshot pair.
When the volume is set to configure the XP Continuous Access pair, XP Continuous Access
Journal pair, XP Business Copy pair, or XP Snapshot pair, you cannot delete the external
volume mapping.
•
•
Whether the volume is set as a reserved volume for XP Business Copy or XP Auto LUN.
When the volume is set as the reserved volume for XP Business Copy or XP Auto LUN, you
cannot delete the external volume mapping.
Whether the volume is set as a pool-VOL.
When the volume is set as a pool-VOL, you cannot delete the external volume mapping.
To delete the external volume mapping:
1. Start Remote Web Console, and open the Volume Operation window.
2. Make sure that Remote Web Console is in Modify mode.
3. Click the path group in the Volume Operation tree.
4. Right-click the external volume that you want to delete in the Volume Operation list.
5. Click Delete Volume in the pop-up menu.
The settings appear in blue italics.
7. Click Apply in the Volume Operation window.
8. When a message appears asking if you have performed the Disconnect operation, click Yes
if you have already performed the Disconnect Subsystem command or the Disconnect Volume
command. Click No if you have not performed the Disconnect Subsystem command or the
Disconnect Volume command yet.
•
If you click Yes, the setting is applied to the local storage system, and the external volume
where the mapping is deleted is removed from the Volume Operation list.
•
If you click No, a message appears asking if you want to execute the Delete Volume
operation without writing the data in the cache memory into the external volume.
Click OK to execute the Delete Volume operation without writing the data in the cache
memory into the external volume. Click Cancel to cancel the operation.
◦
When you click OK, the setting is applied to the local storage system, and the external
volume where the mapping is deleted is removed from the Volume Operation list.
◦
When you click OK, the Delete Volume operation is performed, however, the data
in the cache memory that is not written to the volume is not guaranteed.
When an error occurs, an error message appears. Verify the details in the Preview dialog
box.
The operation may not be performed if some parts of the local storage system are blocked. In this
case, restore the blocked parts of the local storage system first, and then retry the operation.
100 Performing XP External Storage Operations
6 Using Spreadsheets for XP External Storage Operations
This chapter contains the following sections describing how to use spreadsheets, instead of the
Remote Web Console GUI, for XP External Storage operations.
•
•
•
•
•
•
Introduction
To map external volumes, you may want to use spreadsheets instead of the Remote Web Console
GUI. For example, when you want to map many external volumes at a time, using spreadsheets
shortens the operation time compared to when using the GUI. You can import spreadsheets directly
to the storage system using CFL Extension.
Figure 39 (page 101) describes the work flow when you use spreadsheets.
Figure 39 Work Flow for Using Spreadsheets
information about the other operations, see the HP StorageWorks XP24000/XP20000 Remote
Web Console User Guide.
Introduction 101
Before Using Spreadsheets
Remote Web Console is required to use spreadsheets. In addition, you must use CFL Extension
(not the Configuration File Loader window) when you perform operations on spreadsheets.
Spreadsheets must be written in the following format. Multiple operation tags and parameters can
be written in a spreadsheet.
#!Version Version number, Program product, Type,;
[Operation tag]
Parameter
Italic text indicates variables that should be changed according to program products or operations.
Table 14 Contents of a Spreadsheet
Element
Content
Version number
Program product
Type
CLI_External Storage
Operation tag
Parameter
the subsequent sections.
Available Types and Operation Tags
Available operation tags differ depending on the types. The version number that you write in the
among types, operation tags, and version numbers supported by XP External Storage.
102 Using Spreadsheets for XP External Storage Operations
Table 15 Relationship Among the Types, Operation Tags, and Version Number
Type
Operation Tag
Version Number
05_02_01
Template
Get
SSID
ExternalStorage_
Get_def.spd
ExternalGroup
MappedVolume
VolumeOperationFibre
AddVolumeSetting
05_02_01
05_03_01
05_06_00
05_06_00
ExternalStorage_
AddVolumeSetting_
def_.spd
AddVolumeSetting2
DisconnectVolume
ExternalStorage_
AddVolumeSetting2_
def_.spd
ExternalStorage_
DisconnectVolume_
def_.spd
CheckPath-RestoreVolume
ExternalStorage_
CheckPath-RestoreVolume_
def_.spd
DeleteVolume
05_06_00
05_05_00
ExternalStorage_
DeleteVolume_def_.spd
DividePathGroup
ExternalStorage_
DividePathGroup_
def_.spd
UnitePathGroup
05_05_00
ExternalStorage_
UnitePathGroup_
def_.spd
The operation tags can be used only for XP External Storage. In addition, other operation tags that
are common for all program products can also be used in a spreadsheet. For details on common
operation tags, see the HP StorageWorks XP24000/XP20000 Remote Web Console User Guide.
For detailed information about the parameters for each operation tag, see the following sections.
You can quickly write a spreadsheet if you make a copy of the provided templates and then modify
the copy. For information about the location of the templates, see the HP StorageWorks
XP24000/XP20000 Remote Web Console User Guide.
Saving Storage System Information
You can save the storage system information in files by specifying a spreadsheet when you execute
the CFLGETcommand using the CFL Extension.
The storage system information will be saved in different files for each operation tag. The file named
Input-file-name_Result.spdlists all the operation tags and the names of the files.
SSID Tag
When you write the SSID tag in a spreadsheet and execute the CFLGETcommand, the SSID
information will be saved in the files.
Saving Storage System Information 103
Specify the GET_ALL parameter for the SSID tag. By specifying this parameter, the information
about all the SSIDs that the local storage system has will be saved in files.
[SSID]
GET_ALL,;
in a spreadsheet.
Table 16 Information Saved when the SSID Tag is Written
Column in
Item
LDKC:CU:LDEV-LDEV
SSID
Content
Spreadsheet
A
The range of LDEV numbers to which the SSID is
assigned
B
SSID
When the SSID tag is written, the information about internal volumes as well as external volumes
will be saved.
ExternalGroup Tag
When you write the ExternalGroup tag in a spreadsheet and execute the CFLGETcommand, the
information about external volume groups will be saved in the files.
Specify the GET_ALL parameter for the ExternalGroup tag. By specifying this parameter, the
information about all the external volume groups configured to the local storage system will be
saved in the files.
[ExternalGroup]
GET_ALL,;
is written in a spreadsheet.
Table 17 Information Saved when the ExternalGroup Tag is Written
Column in
Spreadsheet
Item
Content
A
ExG
External volume group number and its sequential
number
MappedVolume Tag
When you write the MappedVolume tag in a spreadsheet and execute the CFLGETcommand,
the information about external volumes in the local storage system will be saved in the files.
Specify the GET_ALL parameter for the MappedVolume tag. By specifying this parameter, the
information about all the external volumes in the local storage system will be saved in the files.
[MappedVolume]
GET_ALL,;
tag is written in a spreadsheet.
104 Using Spreadsheets for XP External Storage Operations
Table 18 Information Saved when the MappedVolume Tag is Written
Layer
Column in
Spreadsheet
Item
Content
First Layer
Information about the external storage system
Name of the vendor
A
B
Vendor
Product
Name of the storage system
C
SerialNumber
Serial number of the storage system
Information about the external volume
Identifier
Second Layer
A
B
+
PathGroup
ExG
Path group number
C
D
E
External volume group number and its sequential number
Identification number of the external volume
Characteristic1
Device
Name of the storage system that is reported to the host by the external
volume
F
G
H
I
Attribute
• Normal: This volume is an external volume.
• R-CMD: This volume is a remote command device.
CacheMode
InflowControl
PathMode
• Enable: Cache mode is set to Enable.
• Disable: Cache mode is set to Disable.
• Enable: Inflow control is set to Enable.
• Disable: Inflow control is set to Disable.
• Single: The cross-subsystem paths work in the Single mode.
• Multi: The cross-subsystem paths work in the Multi mode.
• APLB: The cross-subsystem paths work in the APLB mode.
J
Capacity
Capacity of the external volume. This capacity is expressed in blocks.
Extended identification number of the external volume
Information about the cross-subsystem paths
Identifier
K
Characteristic2
Third Layer
A
B
+
+
C
D
E
Port
WWN
LUN
Port number of the local storage system
WWN of the external storage system
LU number of the external volume
The information about the external volumes that is defined to the local storage system will be stored
in files per path group. It takes approximately 30 seconds to store the data into files when there
are 64 path groups.
Saving Storage System Information 105
Mapping External Volumes
Tags to map external volumes are:
•
•
The AddVolumeSetting tag: Creates multiple LDEVs in an external volume by specifying the
capacity
The AddVolumeSetting2 tag: Creates one LDEV in an external volume without specifying the
capacity
The version number that you write in a spreadsheet declaration differs depending on the tag you
You can map external volumes to the local storage system by specifying a spreadsheet that includes
one of these tags when you execute the CFLSETcommand using the CFL Extension.
Write parameters required for mapping external volumes in these tags. Parameters must be written
identifier of the parameters that can be set for these tags.
Table 19 Structure and Identifier of Parameters (AddVolumeSetting Tag and AddVolumeSetting2
Tag)
Layer
Identifier
None
Content
Description
First layer
Information about external
volumes and the primary path
This layer is required.
Second
layer
+,
Information about alternate paths Specifies one row for each alternate path. Up to seven
rows can be specified. HP recommends that you specify
at least one alternate path.
Third layer +,+,
Information about LDEVs
Specifies one row for each LDEV. Up to 2,048 rows can
be specified. If you do not specify the third layer, no
LDEVs will be created.
AddVolumeSetting Tag
Use the AddVolumeSetting tag to create multiple LDEVs in an external volume by specifying the
LDEV capacity. The AddVolumeSetting tag allows you to specify the LDEV capacity in blocks so
you can use this tag to create an LDEV with the predetermined capacity (an LDEV for creating a
pair, for example).
Table 20 (page 107) shows the parameters that can be set for the AddVolumeSetting tag.
106 Using Spreadsheets for XP External Storage Operations
Table 20 AddVolumeSetting Tag Parameters
Layer
Column in
Spreadsheet
Parameter
Setting
Range of Values
Number of
Characters
First layer
Information about external volumes and the primary path
A
B
PathGroup
Path group
number
0 to 63231
5 decimal digits or
fewer
Port
Port number of
the primary path
1A to GR
2 digits or fewer
C
WWN
WWN of the
primary path
000000000000000 16 hexadecimal
digits
to
FFFFFFFFFFFFFFFF
D
E
LUN
ExG
LU number set to 0000 to 0FFF
4 hexadecimal
digits or fewer
the external
volume
External volume Grp: 1 to 16384 Grp: 5 decimal
group number
and its sequential
number. The
digits or fewer
VPG: 1 to 4096
VPG: 4 decimal
digits or fewer
format should be
EGrp-VPG (for
example,
E16384-4096).
F
Attribute
N/A
• Normal:
Maps an
external
• Normal
• R-CMD
volume
• R-CMD: Maps
a command
device
G
H
CLPR
CLPR that is used 0 to 31
to access the
2 decimal digits or
fewer
external volume
Emulation
Emulation type of N/A
the external
volume. Write the
same characters
as the emulation
type shown in
16 characters or
fewer in ASCII
format
I
CacheMode
InflowControl
N/A
N/A
• Enable: Sets
cache mode
to Enable.
• Enable
• Disable
• Disable: Sets
cache mode
to Disable.
J
• Enable: Sets
inflow control
to Enable.
• Enable
• Disable
• Disable: Sets
inflow control
to Disable.
Mapping External Volumes 107
Table 20 AddVolumeSetting Tag Parameters (continued)
Layer
Column in
Spreadsheet
Parameter
Setting
Range of Values
Number of
Characters
Second layer
Information about alternate paths. Specify the paths in the
order of descending priorities.
A
B
+
Identifier
N/A
N/A
Port
Port number of
the alternate path
1A to GR
2 digits or fewer
C
WWN
WWN of the
alternate path
0000000000000000 16 hexadecimal
digits
to
FFFFFFFFFFFFFFFF
Third layer
Information about LDEVs to be created in an external
volume
108 Using Spreadsheets for XP External Storage Operations
Table 20 AddVolumeSetting Tag Parameters (continued)
Layer
Column in
Spreadsheet
Parameter
Setting
Range of Values
Number of
Characters
A
B
+
+
Identifier
N/A
N/A
C
LDKC
LDKC number
CU number
00 to 01
00 to FE
00 to FF
2 hexadecimal
digits or fewer
D
E
CU
2 hexadecimal
digits or fewer
LDEV
LDEV number.
Specify an LDEV
number that is not
assigned to any
volume. An
2 hexadecimal
digits or fewer
unassigned LDEV
number cannot
be specified if
other LDEVs in
the same area
grouped by 32
LDEV numbers
are already
assigned to a
different
emulation group.
For details on
emulation
groups, see the
HP StorageWorks
XP24000/XP20000
Virtual LVI/LUN
(VLL) and Volume
Shredder User
Guide.
To see whether
the LDEV number
can be assigned
to a volume or
not, view the
LDEV dialog box
of the Reports
Display dialog
box. You can
also save the
content of the
LDEV dialog box
in a file, and
view the file. For
details on the
LDEV dialog box,
see the HP
StorageWorks
XP24000/XP20000
Remote Web
Console User
Guide.
F
Capacity
1 to 8589934592 10 decimal digits
or fewer
Mapping External Volumes 109
Table 20 AddVolumeSetting Tag Parameters (continued)
Layer
Column in
Spreadsheet
Parameter
Setting
Range of Values
Number of
Characters
Capacity of the
LDEV in blocks.
For details, see
G
SSID
SSID assigned to 0004 to FFFE
the range of the
LDEV numbers.
4 hexadecimal
digits or fewer
Specify the SSID
written in the file
that you saved by
using the SSID
tag. When you
create an LDEV
that does not
have an SSID,
specify an SSID
that is not written
in this file. For
details on an
SSID, see the HP
StorageWorks
XP24000/XP20000
Virtual LVI/LUN
(VLL) and Volume
Shredder User
Guide.
How to Specify the LDEV Capacity
When you specify the LDEV capacity for the AddVolumeSetting tag in a spreadsheet, follow the
instruction in this section depending on the emulation type.
•
When the emulation type is OPEN-V:
◦
◦
Specify the value in the range of 96000 and 8589934592.
An LDEV is created from where a slot starts. Therefore, if you specify the LDEV capacity
indivisible by the slot size (512 blocks), an adjustment area will be created between
where an LDEV ends and where the next LDEV starts. This adjustment area cannot be
used as an LDEV.
You can calculate the adjustment area using the following equation:
Adjustment area capacity = LDEV capacity 512 × 512 – LDEV capacity
The value enclosed in two upward arrows ( ) must be rounded up to the nearest whole
number.
◦
Make sure that the capacity of the external volume is greater than or equal to the capacity
that is the sum of the total capacity of all the LDEVs in the external volume and the total
capacity of the adjustment areas.
this case, the required capacity of the external volume is 401,056 blocks.
110 Using Spreadsheets for XP External Storage Operations
Figure 40 When Creating Multiple LDEVs in an External Volume
•
When the emulation type is other than OPEN-V:
For details on the base LDEV capacity, the base data area capacity, and the control information
◦
If the capacity of the external volume is equal to or larger than the base LDEV capacity,
specify the base data area capacity. Also, make sure that the capacity of the external
volume is greater than or equal to the total capacity of the base LDEV capacity for all the
LDEVs.
◦
If the capacity of the external volume is smaller than the base LDEV capacity, create one
LDEV the capacity of the external volume. Also, specify the value that is calculated by
using the following equation:
LDEV capacity =
Cylinder capacity
(External volume capacity – Control information area capacity)
× Cylinder capacity
The value enclosed in two downward arrows ( ) must be rounded down to the nearest
whole number.
Use the following numbers for the cylinder capacity:
–
–
–
For 3380 mainframe volumes: 1,440 blocks
For 3390 mainframe volumes: 1,740 blocks
For open volumes other than OPEN-V: 1,440 blocks
AddVolumeSetting2 Tag
Use the AddVolumeSetting2 tag to create one LDEV in an external volume without specifying the
LDEV capacity. The created LDEV has the same capacity as the external volume. You can also use
this tag when you use existing data in the external volume after mapping.
The LDEV is created with the following settings:
•
•
•
•
LDEV capacity: the same capacity as the external volume
Emulation type: OPEN-V
Cache mode: Disable
Inflow control: Disable
Mapping External Volumes 111
Table 21 AddVolumeSetting2 Tag Parameters
Layer
Column in
Spreadsheet
Parameter
Setting
Range of
Values
Number of
Characters
First layer
Information about external volumes and the primary path
A
B
PathGroup
Path group
number
0 to 63231
5 decimal digits or
fewer
Port
Port number of
the primary path
1A to GR
2 digits or fewer
C
WWN
WWN of the
primary path
00000000
00000000 to
FFFFFFFF FFFFFFFF
16 hexadecimal
digits
D
E
LUN
ExG
LU number set to 0000 to 0FFF
4 hexadecimal
digits or fewer
the external
volume
External volume Grp: 1 to 16384 Grp: 5 decimal
group number
and its sequential
number. The
digits or fewer
VPG: 1 to 4096
VPG: 4 decimal
digits or fewer
format should be
EGrp-VPG (for
example,
E16384-4096).
F
Attribute
N/A
• Normal:
Maps an
external
• Normal
• R-CMD
volume
• R-CMD: Maps
a command
device
G
CLPR
CLPR that is used 0 to 31
to access the
external volume
2 decimal digits or
fewer
Second layer
Information about alternate paths. Specify the paths in the
order of descending priorities.
A
B
+
Identifier
N/A
N/A
Port
Port number of
the alternate path
1A to GR
2 digits or fewer
C
WWN
WWN of the
alternate path
00000000
00000000 to
FFFFFFFF FFFFFFFF
16 hexadecimal
digits
Third layer
Information about LDEVs to be created in an external
volume
112 Using Spreadsheets for XP External Storage Operations
Table 21 AddVolumeSetting2 Tag Parameters (continued)
Layer
Column in
Spreadsheet
Parameter
Setting
Range of
Values
Number of
Characters
A
B
+
+
Identifier
N/A
N/A
C
LDKC
LDKC number
CU number
00 to 01
00 to FE
00 to FF
2 hexadecimal
digits or fewer
D
E
CU
2 hexadecimal
digits or fewer
LDEV
LDEV number.
Specify an LDEV
number that is not
assigned to any
volume.
2 hexadecimal
digits or fewer
However, an
unassigned LDEV
number cannot
be specified if
other LDEVs in
the same area
grouped by 32
LDEV numbers
are already
assigned to a
different
emulation group.
For details on
emulation
groups, see the
HP StorageWorks
XP24000/XP20000
Virtual LVI/LUN
(VLL) and Volume
Shredder User
Guide.
To see whether
the LDEV number
can be assigned
to a volume or
not, view the
LDEV dialog box
of the Reports
Display dialog
box. You can
also save the
content of the
LDEV dialog box
in a file, and
view the file. For
details on the
LDEV dialog box,
see the HP
StorageWorks
XP24000/XP20000
Remote Web
Console User
Guide.
F
SSID
0004 to FFFE
4 hexadecimal
digits or fewer
Mapping External Volumes 113
Table 21 AddVolumeSetting2 Tag Parameters (continued)
Layer
Column in
Spreadsheet
Parameter
Setting
Range of
Values
Number of
Characters
SSID assigned to
the range of the
LDEV numbers.
Specify the SSID
written in the file
that you saved by
using the SSID
tag. When you
create an LDEV
that does not
have an SSID,
specify an SSID
that is not written
in this file. For
details on an
SSID, see the HP
StorageWorks
XP24000/XP20000
Virtual LVI/LUN
(VLL) and Volume
Shredder User
Guide.
Disconnecting an Individual External Volume (DisconnectVolume Tag)
Use the DisconnectVolume tag to disconnect an individual external volume. Table 22 (page 114)
shows the parameters that can be set for the DisconnectVolume tag.
Table 22 DisconnectVolume Tag Parameters
Layer
Column in
Spreadsheet
Parameter
Setting
Range of Values
Number of
Characters
The first layer
A
ExG
External volume Grp: 1 to 16384 Grp: 5 decimal
group number
and its sequential
number. The
format should be
EGrp-VPG (for
example,
digits or fewer
VPG: 1 to 4096
VPG: 4 decimal
digits or fewer
E16384-4096).
Resuming an Individual External Volume (CheckPath-RestoreVolume Tag)
Use the CheckPath-RestoreVolume tag to resume an individual external volume operation.
Table 23 (page 115) shows the parameters that can be set for the CheckPath-RestoreVolume tag.
114 Using Spreadsheets for XP External Storage Operations
Table 23 CheckPath-RestoreVolume Tag Parameters
Layer
Column in
Spreadsheet
Parameter
Setting
Range of Values
Number of
Characters
The first layer
A
ExG
External volume Grp: 1 to 16384 Grp: 5 decimal
group number
and its sequential
number. The
format should be
EGrp-VPG (for
example,
digits or fewer
VPG: 1 to 4096
VPG: 4 decimal
digits or fewer
E16384-4096).
Deleting the External Volume Mapping (DeleteVolume Tag)
parameters that can be set for the DeleteVolume tag.
Table 24 DeleteVolume Tag Parameters
Layer
Column in
Spreadsheet
Parameter
Setting
Range of Values
Number of
Characters
The first layer
A
ExG
External volume Grp: 1 to 16384 Grp: 5 decimal
group number
and its sequential
number. The
format should be
EGrp-VPG (for
example,
digits or fewer
VPG: 1 to 4096
VPG: 4 decimal
digits or fewer
E16384-4096).
Changing Path Group
The DividePathGroup tag is used to move an external volume from an existing path group to a
new path group.
The UnitePathGroup tag is used to move all external volumes from one path group to another path
group.
DividePathGroup Tag
Use the DividePathGroup tag to move an external volume from an existing path group to a new
path group. If no external volume remains in the source path group after the move, the group is
automatically deleted.
The DevicePathGroup tag allows you to move an external volume only to a new path group. To
move an external volume to an existing path group, first use DevicePathGroup to move the volume
to a new path group, and then use the UnitePathGroup tag to move the volume from the new path
group to an existing path group. For more information about UnitePathGroup tag, see
Write parameters are required to change the path group. Parameters must be written using the +
identifier. Table 25 (page 116) shows the structure and identifier of the parameters that can be set
for this tag.
Deleting the External Volume Mapping (DeleteVolume Tag) 115
Table 25 Structure and Identifier of Parameters (DividePathGroup Tag)
Layer
Identifier
Content
Description
The first layer
None
Information about the path This layer is required.
group that you want to
change.
The second layer
The third layer
+,
Information about the new
path group.
This layer is required.
+,+,
Information about external
volumes that you want to
move.
Specifies one row for each
alternate external volume.
External volumes in the same
path group can be moved
by specifying two or more
external volumes.
Table 26 (page 116) shows the parameters that can be set for the DividePathGroup tag.
Table 26 DividePathGroup Tag Parameters
Layer
Column in
Spreadsheet
Parameter
Setting
Range of Values
Number of
Characters
The first layer
A
Information about the path group that you want to change.
PathGroup
Path group
number.
0 to 63231
5 decimal digits or
fewer
The second layer
Information about the new path group.
A
B
+
Identifier.
N/A
N/A
NewPath Group
New path group
number.
0 to 63231
5 decimal digits or
fewer
The third layer
Information about external volumes that you want to move.
A
B
+
Identifier
N/A
N/A
+
C
ExG
External volume
group number and
its sequential
Grp: 1 to 16384
Grp: 5 decimal
digits or fewer
VPG: 1 to 4096
VPG: 4 decimal
digits or fewer
number. The
format should be
EGrp-VPG (for
example,
E16384-4096).
UnitePathGroup Tag
The UnitePathGroup tag is used to move all external volumes from one path group to another path
group. The source path group will be automatically deleted because there will be no external
volume in the path group after the volumes are moved.
Write parameters are required to change the path group for this tag. Parameters must be written
116 Using Spreadsheets for XP External Storage Operations
Table 27 Structure and Identifier of Parameters (UnitePathGroup Tag)
Layer
Identifier
Content
Description
The first layer
None
Information about the path This layer is required.
group to which you want to
move an external volume.
The second layer
+,
Information about the path Specifies one row for each
group that you want to
change.
alternate path group.
External volumes in two or
more path groups can be
moved to one path group by
specifying two or more path
groups.
Table 28 (page 117) shows the parameters that can be set for the UnitePathGroup tag.
Table 28 UnitePathGroup Tag Parameters
Layer
Column in
Spreadsheet
Parameter
Setting
Range of Values
Number of
Characters
The first layer
Information about the path group to which you want to move
an external volume.
A
PathGroup
Path group
number.
0 to 63231
5 decimal digits or
fewer
The second layer
Information about the path group that you want to change.
A
B
+
Identifier.
N/A
N/A
TargetPathGroup
Path group
number.
0 to 63231
5 decimal digits or
less
Example of a Spreadsheet
This section shows an example of a spreadsheet that can be used for mapping an external volume
in the following configuration:
•
An external volume is configured as follows:
◦
Map the volume to which 0001 is configured as a LUN that can be discovered through
the primary path.
◦
◦
Use 1 for a path group number.
Configure E16384-4095 for an external volume group (ExG).
•
Two cross-subsystem paths are configured as follows:
◦
The primary path
Port number on the local storage system: 1A
WWN on the external storage system: 60060E8004F81370
◦
The alternate path
Port number on the local storage system: 1B
WWN on the external storage system: 60060E8004F81371
•
Attributes of an external volume are configured as follows:
◦
◦
Emulation type: OPEN-V
Cache mode: Enable
Example of a Spreadsheet 117
◦
◦
Inflow control: Disable
CLPR: 00
•
LDEVs are configured as follows:
◦
◦
◦
Number of LDEVs: 3
LDEV number: 00:00:00, 00:01:00, 00:02:00
LDEV capacity: 96,000 blocks
Example:
#!Version 50_02_01, CLI_ExternalStorage, VolumeOperationFibre,;
[SerialNumber]
65536,;
[AddVolumeSetting]
1,1A,60060E8004F81370,0001,E16384-4095,Normal,00,OPEN-V,Enable,Disable,;
+,1B,60060E8004F81371,;
+,+,00,00,00,96000,0004,;
+,+,00,01,00,96000,0005,;
+,+,00,02,00,96000,0006,;
118 Using Spreadsheets for XP External Storage Operations
7 Remote Command Devices
This chapter describes how to use remote command devices as command devices.
•
•
•
•
Overview of Remote Command Devices
A remote command device is a device in the local storage system to which a command device in
the external storage system is mapped.
As you send the RAID Manager commands to the remote command device, you can enter these
RAID Manager commands to the command device of the external storage system to operate the
RAID Manager in the external storage system.
system sends the RAID Manager commands of XP Business Copy or XP Continuous Access to the
remote command device, and this means that the commands are entered to the command device
in the external storage system to operate the XP Business Copy pair or the XP Continuous Access
pair in the external storage system.
For detailed information about RAID Manager and the command device, see the HP StorageWorks
XP RAID Manager User Guide.
Figure 41 Outline of Remote Command Device
Overview of Remote Command Devices 119
Guidelines for Remote Command Devices
Notices on remote command device are as follows:
•
You can map a command device as a remote command device when one of the following
storage systems is connected as an external subsystem.
◦
◦
◦
◦
◦
◦
◦
◦
◦
◦
◦
◦
◦
◦
◦
◦
◦
◦
◦
◦
◦
◦
Universal Storage Platform V
Universal Storage Platform VM
TagmaStore Universal Storage Platform
TagmaStore Network Storage Controller
Adaptable Modular Storage
Workgroup Modular Storage
Lightning 9900V series
Thunder 9500V series
SANRISE Universal Storage Platform
SANRISE Network Storage Controller
SANRISE9900V series
SANRISE9500V series
H24000
H20000
SANRISE H12000
SANRISE H10000
SANRISE H1024/H128
HP StorageWorks XP24000 Disk Array
HP StorageWorks XP20000 Disk Array
HP StorageWorks XP12000 Disk Array
HP StorageWorks XP10000 Disk Array
HP StorageWorks XP1024/XP128 Disk Array
•
•
You do not need the license for XP External Storage to map a command device as a remote
command device.
The remote command devices appear in the Device column on the Volume Operation window
120 Remote Command Devices
Table 29 Displayed Information in Device Column for Remote Command Device
Storage System
Displayed Information in Device Column
Universal Storage Platform V
Universal Storage Platform VM
TagmaStore Universal Storage Platform
TagmaStore Network Storage Controller
Lightning 9900V series
Format: Emulation Type + -CM
For example, OPEN-V-CM, OPEN-3-CM
SANRISE Universal Storage Platform
SANRISE Network Storage Controller
SANRISE9900V series
H24000
H20000
SANRISE H12000
SANRISE H10000
SANRISE H1024/H128
HP StorageWorks XP24000 Disk Array
HP StorageWorks XP20000 Disk Array
HP StorageWorks XP12000 Disk Array
HP StorageWorks XP10000 Disk Array
HP StorageWorks XP1024/XP128 Disk Array
Adaptable Modular Storage
Workgroup Modular Storage
Thunder 9500V series
DF600F-CM
SANRISE9500V series
•
If you access the remote command device from an OPEN host, the device information that is
reported by the remote command device is about the command device, which is mapped as
a remote command device, of the external storage system.
The device information about the command device that is reported to the host by the remote
command device includes the following:
◦
◦
◦
Serial number
Vendor
Device name
The device name that is reported to the host is same as the one displayed in the Device
column of the Volume Operation window. For the device name that is reported to the
•
•
Even if the status of the remote command device is normal, an error may occur when the
operations or commands are performed on the remote command device.
If an error occurs even though the status of the remote command device is normal, check the
status of the command device of the external storage system, not the remote command device.
Table 30 (page 122) shows restrictions for mapping a command device as a remote command
device.
Guidelines for Remote Command Devices 121
Table 30 Restrictions on Remote Command Device
Item
Restriction
Emulation type
OPEN-V
Number of LDEVs in an external volume
Cache mode
1
Disable
Minimum capacity
Maximum capacity
96,000 Blocks (about 47 MB)
4 TB
•
•
The remote command device cannot be identified by the port discovery or volume discovery
of XP External Storage.
When an external storage system (A) has a remote command device (B) [that is, when a
command device in another external storage system (C) is mapped to this external storage
system (A)], make sure that the remote command device (B) does not have the smallest LUN
ID on the port in the external storage system (A).
•
•
•
•
You cannot execute I/Os to the remote command device.
You cannot set the command device disable on the remote command device.
You cannot set the command device security on the remote command device.
Do not set the command device security on the external storage system side for the command
device that is mapped as a remote command device.
•
•
•
You cannot create a LUSE volume using a remote command device.
You cannot create CVs using the VLL function in the remote command device.
Cache Residency Manager is not available on the remote command device.
Mapping a Command Device as a Remote Command Device
The command devices that can be mapped as remote command devices appear in the Device
To map a command device, select a command device that can be mapped and follow the procedure
Using XP Continuous Access or XP Continuous Access Journal with Remote
Command Device
When you want to use XP Continuous Access or XP Continuous Access Journal with a remote
command device, you need two different kinds of ports, which are an initiator port for XP Continuous
Access or XP Continuous Access Journal and an external port for the remote command device.
However, if you set the Initiator/External MIX mode, you will be able to use a port as both initiator
port for XP Continuous Access or XP Continuous Access Journal and external port only for the
remote command device.
Before you set the Initiator/External MIX mode, you need to prepare initiator ports and external
ports in one port block of the Standard mode. You can set the Initiator/External MIX mode on the
port block that consists of the initiator ports and external ports.
Figure 42 (page 123) shows the difference between the Standard mode and Initiator/External MIX
mode. When the Standard mode is set to the ports, you have to connect the cables for both initiator
port and external port. However, if you set the Initiator/External MIX mode, you just need to connect
one cable, and you can use XP Continuous Access or XP Continuous Access Journal and remote
command device.
122 Remote Command Devices
For detailed information on the port block and setting the Initiator/External MIX mode, see the HP
StorageWorks XP24000/XP20000 LUN Manager User Guide.
Figure 42 Difference between Standard Mode and Initiator/External MIX Mode
Figure 43 (page 124) shows an example of using XP Continuous Access or XP Continuous Access
Journal with remote command device. The System 1 functions as MCU of XP Continuous Access
or XP Continuous Access Journal, and at the same time it functions as the local storage system of
the remote command device. The System 2 functions as RCU of XP Continuous Access or XP
Continuous Access Journal, and at the same time it functions as the external storage system of the
remote command device. In this case, the setting of XP Continuous Access pair or XP Continuous
Access Journal pair and setting of the remote command device are both made using the port of
the Initiator/External MIX mode. As this example shows, you only need to connect one cable to
one of the ports that are set to the Initiator/External MIX mode, which means that you do not need
to connect cables to each port of different port attributes.
Using XP Continuous Access or XP Continuous Access Journal with Remote Command Device 123
Figure 43 Example of Using XP Continuous Access or XP Continuous Access Journal with Remote
Command Device
Procedure to Use Initiator/External MIX Mode
This section describes the procedure to use the Initiator/External MIX mode and the procedure to
stop using the Initiator/External MIX mode.
To use the Initiator/External MIX mode:
1. Prepare the initiator ports of the Standard mode and external ports of the Standard mode in
one port block.
For the procedure to set the port attribute to initiator, see the HP StorageWorks
XP24000/XP20000 Continuous Access Software User's Guide or the HP StorageWorks
XP24000/XP20000 Continuous Access Journal Software User Guide.
2. Set the Initiator/External MIX mode to the port block consisting of the initiator ports of the
Standard mode and external ports of the Standard mode.
For the procedure to set the Initiator/External MIX mode, see the HP StorageWorks
XP24000/XP20000 LUN Manager User Guide.
3. Connect the cable to the port, and connect a storage system to be used as an MCU and local
storage system and a storage system to be used as an RCU and external storage system.
124 Remote Command Devices
4. Map the command device as the remote command device.
Only the command device can be recognized when the discovery operation is performed
using the external port of the Initiator/External MIX mode.
5. Start the operation of XP Continuous Access or XP Continuous Access Journal and operation
of the remote command device using the port of the Initiator/External MIX mode.
To stop using the Initiator/External MIX mode:
1. Stop the copy processing and operation of XP Continuous Access and XP Continuous Access
Journal.
2. Stop accessing the remote command device.
3. Delete the mapping of the remote command device.
4. Change the setting of the port block from the Initiator/External MIX mode to the Standard
mode.
For the procedure to change the setting of the port block, see the HP StorageWorks
XP24000/XP20000 LUN Manager User Guide.
Restrictions on Initiator/External MIX Mode
The restrictions on the Initiator/External MIX mode are as follows:
•
The restrictions on the High Speed mode are also restrictions on the Initiator/External MIX
mode. For the restrictions on the High Speed mode, see the HP StorageWorks
XP24000/XP20000 LUN Manager User Guide.
•
•
The point-to-point connection is not available.
You cannot set the Initiator/External MIX mode on the external ports of the Standard mode
that have already been used to map the external volumes. You cannot set the Standard mode
on the port of the Initiator/External MIX mode that has already been used to map the remote
command device. You need to delete the mapping of the external volume and then change
the setting of the port mode.
•
Using a port of the Initiator/External MIX mode, the command device of the external storage
system can only be recognized by the discovery operation and mapped. Other volumes can
be neither recognized by the discovery operation nor mapped using the port of the
Initiator/External MIX mode.
Using XP Continuous Access or XP Continuous Access Journal with Remote Command Device 125
8 Troubleshooting
This chapter provides troubleshooting information for XP External Storage.
•
•
Troubleshooting for XP External Storage
If you have a problem with the Remote Web Console computer or Remote Web Console software,
see the HP StorageWorks XP24000/XP20000 Remote Web Console User Guide for troubleshooting
information.
operations. If you need to call the HP technical support, see “Calling HP Technical Support”
(page 131) for instructions.
Table 31 General Troubleshooting for XP External Storage
Error
Corrective Action
The Remote Web Console computer Remove the error and retry the operation.
cannot access the external volume.
The reason for the error could be as follows:
• The switch is off.
• An error occurred in the switch.
• The cables are not properly connected.
• Configuration in the external storage system is altered, and the specified
external volume has already been deleted.
• An error on the external volume in the external storage system has occurred.
• The path has been changed in the external storage system.
• The port attribute of the local storage system has been changed.
• The topology information has not been properly set.
The external volume cannot be
mapped as an internal volume of the
local storage system.
Remove the error and retry the operation.
The reason for the error could be as follows:
• The number of mapped volumes exceeds the maximum number (63,232)
available for the local storage system.
• There are not enough LDKC:CU:LDEV numbers available for external volume
mapping.
The path to the external volume is
blocked.
Web Console computer cannot access the external volume) could also be
the reason for this error. Check the factors of the first row, remove the error,
and retry the operation. When the error still remains, try step 2.
2. Try the following procedures. If the following procedures do not work and
the path is not restored, call HP technical support.
• Confirm that the cable between the local storage system and the external
storage system is connected properly.
• When the cable between the local storage system and the external storage
system is connected properly, disconnect it once and connect it
appropriately again. After 30 seconds, check the path status from Remote
Web Console.
The path status that requires the
reaction appears in the Mapping Path action.
Information dialog box (see “Mapping
126 Troubleshooting
Table 31 General Troubleshooting for XP External Storage (continued)
Error
Corrective Action
The volume in the external storage
Perform the required action and retry the operation. See “Troubleshooting
port discovery or the volume discovery
was performed.
The external volume is blocked.
Remove the error and retry the operation.
The reason for the error could be as follows:
• All the set paths are blocked (paths are not connected).
• The attribute of external volume is not set to Read/Write attribute.
• The external volume is blocked by error.
The Check Paths & Restore Volume
command is executed and you have
waited more than 10 minutes, but the
status of the device does not change
from Checking.
Click the Refresh ( ) command on the Remote Web Console main window
while the Status: Enable button is shown. If the device status remains as Checking
even though you have updated the information, execute the Check Paths &
Restore Volume command again.
If the same problem persists despite retrying, call HP technical support.
The Disconnect Subsystem command
or the Disconnect Volume command
is executed, but the progress status
information is not updated.
Click the Refresh ( ) command on the Remote Web Console main window
while the Status: Enable button is shown. If the progress information about the
Cache Destage status is not updated even though you have updated the
information, call HP technical support. The time required for the writing
processing of data from the cache to the external volume (destaging processing)
depends on the volume capacity (more time is required for the larger volume
than the smaller one). The processing speed is about 20 MB/s. However, the
processing speed depends on the performance and the status of the external
storage system.
The message of INTERVENTION
The device status is currently changing. Wait for a while, and then check the
REQUIRED is issued to the mainframe device status again. When the transition of the device status has completed
host as the device status.
normally, the device can be used immediately. If the device is blocked as a
result of the device status transition, see the error description “The external
The message of DEVICE ERROR is
issued to the mainframe host as the
device status.
126) for the corrective action.
Troubleshooting the Mapping Path
column in the Mapping Path Information dialog box and the reactions for them. See “Connecting
External Storage Systems” (page 134) for notes on connecting each storage system as an external
storage system and for settings of connection and examples of recovery procedure, and then take
corrective actions.
Table 32 Mapping Path Statuses and Required Actions
Status
Description
Action
Unknown
The status of the path is unknown.
The status of the path cannot be
identified. Call HP technical support.
Blockade
The external port is blocked.
The external port is blocked because of
the microcode replacement or package
replacement or other factor. Check the
status of the local storage system. If you
cannot restore the path, call HP
technical support.
Troubleshooting for XP External Storage 127
Table 32 Mapping Path Statuses and Required Actions (continued)
Status
Description
Action
External device setting changed
The setting of the external storage
system has been changed. For
example, the path definition was
The port of the external storage system
is recognized. See the documents for
your external storage system, and check
deleted, or the external storage system if the operation that changes the setting
itself was replaced by another device. information about the mapped device
has not been performed.
LDEV size reduced
Not ready
The setting of the volume capacity of Check the volume capacity of the
the external storage system has been volume of the external storage system.
changed (the volume capacity was
reduced).
Execute the Delete Volume operation,
and then retry the Add Volume
operation.
The reply of the external storage
The path cannot be used to access the
system was NOTREADY. The drive of external storage system. Check the
the external storage system is spinning status of the external storage system. If
up, or the device of the external
storage system is being formatted.
you cannot restore the path, call HP
technical support.
Illegal request
The reply of the external storage
system was ILLEGALREQUEST. The
The port of the external storage system
is recognized. Check the setting of the
command cannot be executed to the external storage system. If you cannot
device of the external storage system. restore the path, call HP technical
The data protection may be set on the support.
device of the external storage system.
Command aborted
The reply of the external storage
system was ABORTEDCOMMAND.
An error may have occurred on the
external storage system side.
The port of the external storage system
is recognized. Check the setting of the
external storage system and the
condition of the connection (for
example, cables, switches) to the
external storage system. If you cannot
restore the path, call HP technical
support.
Busy
The external storage system is in the
BUSY status.
The port of the external storage system
is recognized. Check the setting of the
external storage system and the load
on the external storage system (for
example, check if the configuration
gives too much load on the external
storage system or not). If you cannot
restore the path, call HP technical
support.
LDEV reserved
Response error
The external storage system is in the
Remove the Reserve status on the device
Reserve status. You are not allowed to of the external storage system.
access the device of the external
storage system from the local storage
system.
The external storage system is in the
blocked status caused by the abnormal is recognized. Check the setting and
reply (Response). You may not be able status of the external storage system. If
to access the device of the external
storage system. Or data protection
may be set on the device of the
external storage system.
The port of the external storage system
you cannot restore the path, call HP
technical support.
Initiator port
The port attribute of the external
Set the port attribute of the external
storage system has been changed to storage system to the target port. If you
the initiator port.
cannot restore the path, call HP
technical support.
128 Troubleshooting
Table 32 Mapping Path Statuses and Required Actions (continued)
Status
Description
Action
Unknown port
The port attribute of the external
storage system is unknown.
The port of the external storage system
is recognized. Check the condition of
the connection (for example, cables,
switches) to the external storage system.
If you cannot restore the path, call HP
technical support.
Cannot detect port
The path has been removed or the port Check the condition of the connection
of the external storage system cannot to the external storage system. If you
be found. There is a problem with the cannot restore the path, call HP
connection to the external storage
system. The possible causes are:
technical support.
• The fiber cable is not physically
connected in the proper way.
• The setting of the topology does
not match between the external
port and the target port.
• Because the security is set on the
port, the device of the external
storage system cannot be
recognized from the local storage
system.
• If the external storage system is
connected through switches, the
settings for the switches may not
be appropriate.
Internal error
Timeout
The program error occurred. Or there Call HP technical support.
is a logical contradiction.
The processing was retried because
the abnormal reply (Response) was
The port of the external storage system
is recognized. Check the condition of
returned, however, the processing has the connection (for example, cables,
been stopped by timeout.
switches) to the external storage system.
If you cannot restore the path, call HP
technical support.
Target error
Unavailable
An error such as the blockade of the Check the status of the ports of the
controller has been found in the port external storage system. If you cannot
of the external storage system.
restore the path, call HP technical
support.
The reply of the external storage
If the path is not changed over
system was Unavailable. The external properly, check the status of the
storage system demands to change
the connected port. When the status restore the path, call HP technical
external storage system. If you cannot
becomes Unavailable, the primary
path changes to the alternate path that
is in the Standby status. When the
primary path has been changed, the
status of the path becomes Normal.
support.
Backoff
The reply of the external storage
If the status cannot be recovered from
system was Backoff. The status of the the error, the path status changes to
path is waiting for recovery because another status. React to the new path
a temporary error has occurred in the status after the status is changed. If you
volume of the external storage system. cannot restore the path, call HP
Even if the status of the primary path technical support.
becomes this status, the primary path
is not changed to the alternate path
immediately. After the error recovery,
the status becomes Normal.
Troubleshooting for XP External Storage 129
Table 32 Mapping Path Statuses and Required Actions (continued)
Status
Description
Action
Device check error
An external volume is mapped, but
Check the status of the volume in the
you cannot access the volume in the external storage system and recover the
external storage system.
volume if it is not normal.
Format the volume if it is not formatted.
Medium error
The volume in the external storage
system becomes inaccessible.
Check the status of the volume in the
external storage system and recover the
volume if it is not normal.
Format the volume if it is not formatted.
Troubleshooting Volume Discovery
Table 33 (page 130) shows the causes of port discovery failure or volume discovery failure, and
actions required to troubleshoot the failure.
Table 33 Causes of Volume Discovery Failure and Required Actions
Cause
Action
Remote Web Console is not in the Modify mode.
Change to the Modify mode and retry the operation.
Port of the local storage system and port of the external
storage system are not connected.
Connect the external port of the local storage system and
the port of the external storage system.
Cable for the switch is not connected appropriately. Or
the port of the switch is blocked.
Connect the cable to the correct port of the switch. Or
change the port status of the switch into the normal status.
Zoning for the switch is not set appropriately.
Make sure the zone configuration is correct so that the
external port of the local storage system can communicate
with the port of the external storage system.
External storage system is not connected to the port set to Connect the external storage system to the External port of
External of the local storage system.
the local storage system. Or change the connected port to
External.
External volume cannot be used because the used external Perform one of the following:
port is in the Internal/External MIX mode. This problem
• Use the external port in the Standard mode.
occurs when the external volume is not a command device.
• Change the Internal/External MIX mode of the external
port to the Standard mode.
External volume returned RESERVATION CONFLICT.
Port security is set on the external storage system.
Release the reserved state of the external volume.
Cancel the port security setting or change the security of
the external storage system so that the local storage system
can access the port of the external storage system.
No LU is configured on the port of the external storage
system.
Configure an LU on the port of the external storage system.
Capacity of the external volume is less than the supported Perform one of the following:
capacity of XP External Storage.
• Increase the capacity of the external volume so that the
capacity of the external volume is equal to or larger
than the capacity supported by XP External Storage.
• Use a security function or delete the LU setting from the
port of the connected external storage system so that
the local storage system cannot recognize the volume
with insufficient capacity.
130 Troubleshooting
Table 33 Causes of Volume Discovery Failure and Required Actions (continued)
Cause
Action
External volume is configured as a management LU.
If a management LU is configured on the port of the
external storage system, perform one of the following:
• Make sure that at least one LU is used for data storage
and has a smaller LUN than the LUN of the management
LU. Also make sure that the data storage LU is set to the
port connected to the local storage system.
• Delete the management LU from the port connected to
the local storage system. operations.
• Use a security function and configure the access attribute
of the management LU to prohibit read and write
Remote command devices of the external storage system
are cascaded.
Perform one of the following:
• Change the configuration so that the remote command
devices are not cascaded.
• Use a security function or delete the LU setting from the
port of the connected external storage system so that
the local storage system cannot recognize the remote
command devices.
External storage system information that is retrieved by the Perform one of the following:
port discovery is not found in the profile information.
• Connect an external storage system supported by XP
External Storage.
• Call HP technical support to ask if the external storage
system is supported by XP External Storage. If the
external storage system is supported, you can connect
the external storage system by either installing the
microcode version that supports the external storage
system or the profile information for the external storage
system.
Login to the external storage system failed.
Perform one of the following:
• Make sure that the port of the external storage system
is in the normal status.
• Register WWN to the external storage system to allow
login from the local storage system.
External volume is not in the normal status. Or a failure or Make sure that the external storage system or the external
an error occurred in retrieving the information from the
external storage system.
volume is in the normal status.
If none corresponds to the actual factor, disconnect the cable between the local storage system
and the external storage system once and connect it appropriately again. After 30 seconds, retry
the operation.
Calling HP Technical Support
If you need to call HP technical support, be sure to provide as much information about the problem
as possible. Include the circumstances surrounding the error or failure, the Remote Web Console
configuration information saved in the floppy disks by the FD Dump Tool, the exact content of any
messages displayed on the Remote Web Console, and the severity levels and reference codes
displayed on the Status tab of the Remote Web Console main window.
Calling HP Technical Support 131
9 Support and Other Resources
Related Documentation
•
•
•
HP StorageWorks XP24000/XP20000 Disk Array Owner Guide
HP StorageWorks XP24000/XP20000 LUN Manager User Guide
HP StorageWorks XP24000/XP20000 Remote Web Console User Guide
You can find these documents on the HP Manuals website:
In the Storage section, click Storage Software and then select a product.
Conventions for Storage Capacity Values
HP XP storage systems use the following values to calculate physical storage capacity values (hard
disk drives):
•
•
•
•
•
1 KB (kilobyte) = 1,000 bytes
1 MB (megabyte) = 1,0002 bytes
1 GB (gigabyte) = 1,0003 bytes
1 TB (terabyte) = 1,0004 bytes
1 PB (petabyte) = 1,0005 bytes
HP XP storage systems use the following values to calculate logical storage capacity values (logical
devices):
•
•
•
•
•
•
1 KB (kilobyte) = 1,024 (210) bytes
1 MB (megabyte) = 1,024 KB or 1,0242 bytes
1 GB (gigabyte) = 1,024 MB or 1,0243 bytes
1 TB (terabyte) = 1,024 GB or 1,0244 bytes
1 PB (petabyte) = 1,024 TB or 1,0245 bytes
1 block = 512 bytes
HP Technical Support
For worldwide technical support information, see the HP support website:
Before contacting HP, collect the following information:
•
•
•
•
•
•
Product model names and numbers
Technical support registration number (if applicable)
Product serial numbers
Error messages
Operating system type and revision level
Detailed questions
132 Support and Other Resources
Subscription Service
HP recommends that you register your product at the Subscriber's Choice for Business website:
After registering, you will receive email notification of product enhancements, new driver versions,
firmware updates, and other product resources.
HP Websites
For additional information, see the following HP websites:
•
•
•
•
Documentation Feedback
HP welcomes your feedback.
To make comments and suggestions about product documentation, send a message to
Subscription Service 133
A Connecting External Storage Systems
This appendix provides configuration information for connecting various external storage systems
to the HP XP24000/XP20000 storage systems.
AMS/WMS Storage System
System Parameters
Table 34 (page 134) explains whether to specify system parameters when making settings on ports
on the AMS and WMS storage systems. You can either specify or omit any other parameters.
When connecting an AMS or WMS storage system, use Remote Web Console Modular or Remote
Web Console Modular 2 to set the data transfer speed of the external port to a fixed value other
than Auto. Also, set the data transfer speed of the target port of the AMS or WMS storage system
to a fixed value according to the data transfer speed of the external port.
Table 34 System Parameters (AMS/WMS)
Window Names
Parameters
Start Attribute
Parameter Settings
Boot Options
Single Mode
Specify this parameter when the TagmaStore
AMS storage system or TagmaStore WMS
storage system is in the one controller
configuration.
Dual Active Mode
Specify this parameter when the TagmaStore
AMS storage system or TagmaStore WMS
storage system is in the two controller
configuration.
Delay Planned Shutdown
Drive blocking mode
You can either specify or omit specifying this
parameter.
You can either specify or omit specifying this
parameter.
Vendor ID
Keep the default parameter and do not change.
Keep the default parameter and do not change.
Product ID
ROM Microcode Version
You can either specify or omit specifying this
parameter.
RAM Microcode Version
Option
You can either specify or omit specifying this
parameter.
System Parameter
You can either specify or omit specifying this
parameter.
Operation if the processor failure Specify this parameter to Reset of occurred.
occurs
WEB Title
You can either specify or omit specifying this
parameter.
Write and verify mode
Set this parameter to ON for AMS 1000, AMS
500, AMS 200, and WMS 100.
Set this parameter to OFF for AMS 2500, AMS
2300 and AMS 2100.
Port Options
Port Option
You can either specify or omit specifying this
parameter.
134 Connecting External Storage Systems
Table 34 System Parameters (AMS/WMS) (continued)
Window Names
Parameters
Parameter Settings
Set this parameter to Standard Mode.
Do not specify any parameters.
Host Connection Mode Host Connection Mode 1
Host Connection Mode 2
NOTE: As for AMS 1000, AMS 500, AMS
200, and WMS 100, do not specify HISUP
OFF mode, either.
Relationship between the Serial Number and the AMS/WMS Model
When the external storage system is the AMS or WMS storage system, you can identify the storage
system model from the serial number displayed in the Serial Number column in the Volume Operation
window.
Number column and the storage system model.
Table 35 Relationship between the Serial Number and the AMS/WMS Model
Storage System
Displayed Serial Number
87XXXXXX
Model
AMS
AMS 2500
AMS 2300
AMS 2100
AMS 1000
AMS 500
AMS 200
WMS 100
85XXXXXX
83XXXXXX
77XXXXXX
75XXXXXX
73XXXXXX
WMS
71XXXXXX
NOTE: In serial numbers, X is an arbitrary number or character.
Relationship between the WWN of the Port and Controller (AMS/WMS)
When the external storage system is the AMS or WMS storage system, you can identify the controller
(controller 0 or controller 1) from the WWN of the port.
Table 36 (page 135) describes the relationship between WWN of port and controller.
Table 36 Relationship between the WWN of the Port and Controller (AMS/WMS)
Model
Controller
WWN of the Port
AMS 200
WMS 100
Controller 0
Controller 1
Controller 0
XXXXXXXXXXXXXXX0
XXXXXXXXXXXXXXX1
AMS 2100
AMS 500
XXXXXXXXXXXXXXX0
XXXXXXXXXXXXXXX1
Controller 1
XXXXXXXXXXXXXXX2
XXXXXXXXXXXXXXX3
AMS/WMS Storage System 135
Table 36 Relationship between the WWN of the Port and Controller
(AMS/WMS) (continued)
Model
Controller
WWN of the Port
AMS 2300
AMS 1000
Controller 0
XXXXXXXXXXXXXXX0
XXXXXXXXXXXXXXX1
XXXXXXXXXXXXXXX2
XXXXXXXXXXXXXXX3
Controller 1
Controller 0
XXXXXXXXXXXXXXX4
XXXXXXXXXXXXXXX5
XXXXXXXXXXXXXXX6
XXXXXXXXXXXXXXX7
AMS 2500
XXXXXXXXXXXXXXX0
XXXXXXXXXXXXXXX1
XXXXXXXXXXXXXXX2
XXXXXXXXXXXXXXX3
XXXXXXXXXXXXXXX4
XXXXXXXXXXXXXXX5
XXXXXXXXXXXXXXX6
XXXXXXXXXXXXXXX7
Controller 1
XXXXXXXXXXXXXXX8
XXXXXXXXXXXXXXX9
XXXXXXXXXXXXXXXA
XXXXXXXXXXXXXXXB
XXXXXXXXXXXXXXXC
XXXXXXXXXXXXXXXD
XXXXXXXXXXXXXXXE
XXXXXXXXXXXXXXXF
NOTE: In WWNs, X is an arbitrary number or character. The ports in the same apparatus have
the identical value
Path Status and Examples of the Recovery Procedure (AMS/WMS)
This section describes errors that require recovery operation on the external storage system side
when the path status is not normal. When the path status is not normal, see Table 37 (page 137)
to recover the path status. For other errors not described in this section, see “Troubleshooting for
XP External Storage” (page 126). If you cannot restore the path, call HP technical support.
136 Connecting External Storage Systems
Table 37 Path Status and Examples of the Recovery Procedure (AMS/WMS)
Path Status
Examples of the Recovery Procedure
External device setting
changed
Settings of the LU paths may have been changed by LUN Manager. Check the
settings of the LU paths. If the settings of the LU paths have been changed,
change the settings back to the ones when the volume is mapped. Or use XP
External Storage to perform the Delete LU operation and perform the Add LU
operation again.
The access attribute of the volume may have been changed by Data Retention
Utility. Check the access attribute of the volume. If the volume is protected by
the access attribute, release the protection.
Illegal request or
Response error
The volume may have been set as a pair volume for data copy. Check if the
volume is set as a pair volume of XP Business Copy, XP Continuous Access or
other copy program. If the volume is set as a pair volume, the volume may be
protected because of the pair status. When the volume is protected, change
the pair status or delete the pair.
The access attribute of the volume may have been changed by Data Retention
Utility. Check the access attribute of the volume. If the volume is protected by
the access attribute, release the protection.
Cannot detect port
There is a problem with the connection to the external storage system. The
possible causes are:
• The fiber cable is not physically connected in the proper way.
• The setting of the topology does not match between the external port and
the target port.
• If the external storage system is connected through switches, the settings for
the switches may not be appropriate.
Verify the fiber cable is connected properly, and then set the Fibre Channel
port properly using LUN Manager.
If host group security is enabled, disable host group security using LUN
Manager.
P9500 Disk Array
When connecting a VSP storage system as the external storage system, you need to set the port
to the host group for the Windows hosts (host mode 0C: Windows, host mode 2C: Windows
Extension).
Also, the port attribute must be the target port or the RCU target port.
Path status and examples of recovery procedure
This section describes errors that require recovery operation on the external storage system side
when the path status is not normal. When the path status is not normal, see the following table to
recover the path status. If you cannot restore the path, contact HP.
AMS/WMS Storage System 137
Table 38 Path status and examples of recovery procedure (P9500 Disk Array)
Path Status
Examples of Recovery Procedure
External device setting changed
Settings of the LU paths may have been changed by LUN
Manager. Check the settings of the LU paths. If the settings
of the LU paths have been changed, change the settings
back to the ones when the volume is mapped. Or use
Universal Volume Manager to perform the Delete Volume
operation and perform the Add Volume operation again.
The access attribute of the volume may have been changed
by Data Retention Utility. Check the access attribute of the
volume. If the volume is protected by the access attribute,
release the protection.
Illegal request or Response error
The volume may have been set as a pair volume for data
copy. Check if the volume is set as a pair volume of
ShadowImage, TrueCopy, Universal Replicator or some
other copy program. If the volume is set as a pair volume,
the volume may be protected because of the pair status.
When the volume is protected, change the pair status or
delete the pair.
The access attribute of the volume may have been changed
by Data Retention Utility. Check the access attribute of the
volume. If the volume is protected by the access attribute,
release the protection.
Cannot detect port
There is a problem with connection to the external storage
system. The possible causes are:
• The fibre cable is not physically connected in the proper
way.
• The setting of the topology does not match between the
external port and the target port.
• If the external storage system is connected through
switches, the settings for the switches may not be
appropriate.
Make sure that the fibre cable is connected properly, and
then set the fibre channel port properly using LUN
Manager.
The LUN security may have been enabled by LUN
Manager. Check if the LUN security is enabled or not. If
the LUN security is enabled, disable the LUN security.
Notes on Using the Power Savings Option (AMS/WMS)
When the AMS 2500, AMS 2300 or AMS 2100 storage system is connected as an external
storage system and the Power Savings option is enabled on the external storage system, do not
access external volumes from a host if the external volumes are spinning down. If an external
volume is accessed from a host when the external volume is spinning down, the status of the external
volume changes to Blockade.
If the status of the external volume changes to Blockade, the external volume will be automatically
restored in several hours. You can also manually restore the external volumes by using the Check
Paths & Restore Volume command.
Thunder 9500V Storage System
System Parameters
Table 39 (page 139) explains whether to specify system parameters when making settings on ports
on the Thunder 9500V storage system.
138 Connecting External Storage Systems
Table 39 System Parameters (Thunder 9500V)
Window Names
Parameters
Parameter Settings
System Startup Settings Start Attribute
Single Mode
Specify this parameter when the Thunder
9500V storage system is in the one
controller configuration.
Dual Active Mode
Specify this parameter when the Thunder
9500V storage system is in the two
controller configuration.
NOTE: Be sure to specify that Data Share
Mode will be used.
Hot Stand-By Mode
Do not specify this parameter.
Common 1
OPTION 1
Delay Planned Shutdown
You can either specify this parameter or
omit specifying this parameter.
SCSI Fibre Channel Common Options You can either specify this parameter or
omit specifying this parameter.
OPTION 2
SCSI Fibre Channel Common Options You can either specify this parameter or
omit specifying this parameter.
Data Striping
Inquiry Setting
Operation if the processor failure
occurs
Specify this parameter to Reset of occurred.
Command Queuing Mode
Vendor ID
Specify this parameter ON.
Keep the default parameter and do not
change.
Product ID
Keep the default parameter and do not
change.
ROM Microcode Version
RAM Microcode Version
WEB Title
You can either specify this parameter or
omit specifying this parameter.
You can either specify this parameter or
omit specifying this parameter.
You can either specify this parameter or
omit specifying this parameter.
Port Type
Reset/LIP Mode
Reset/LIP Mode (Signal)
You can either specify this parameter or
omit specifying this parameter.
Reset/LIP Mode (Process)
LIP Reset Mode
You can either specify this parameter or
omit specifying this parameter.
You can either specify this parameter or
omit specifying this parameter.
Controller Option
RS232C Error Information Outflow
Mode
You can either specify this parameter or
omit specifying this parameter.
Write and verify mode
Set this parameter to ON.
Set this parameter to Standard Mode.
Specify HISUP Mode.
Host Connection Mode Host Connection Mode 1
Host Connection Mode 2
NOTE: Do not specify any other
parameters.
Thunder 9500V Storage System 139
When you use the Thunder 9500V storage system as an external storage system, the following
versions are recommended. If you use a 9500V storage system whose version is earlier than the
following versions, the information about the SATA drive may not be displayed correctly.
•
•
For Thunder 9530V, Thunder 9520V, Thunder 9570V: version 0658 or later.
For Thunder 9580V, Thunder 9585V: version 1658 or later.
Relationship between the Serial Number and Thunder 9500V Model
When the external storage system is Thunder 9500V storage system, you can identify the storage
system model from the serial number displayed in the Serial Number column in the Volume Operation
window.
Number column and the storage system model.
Table 40 Relationship between the Serial Number and Thunder 9500V Model
Displayed Serial Number
D600XXXX
Model
9570V, 9520V
9530V
D60JXXXX
D60HXXXX
9580V, 9585V
NOTE: In serial numbers, X is an arbitrary number or character.
Relationship between the WWN of the Port and Controller
When the external storage system is Thunder 9500V storage system, you can identify the controller
(controller 0 or controller 1) from the WWN of the port.
Table 41 Relationship between the WWN of the Port and Controller (Thunder 9500V)
Model
Controller
WWN of the Port
9570V
9530V
9520V
Controller 0
XXXXXXXXXXXXXXX0
XXXXXXXXXXXXXXX1
Controller 1
Controller 0
XXXXXXXXXXXXXXX2
XXXXXXXXXXXXXXX3
9580V
9585V
XXXXXXXXXXXXXXX0
XXXXXXXXXXXXXXX1
XXXXXXXXXXXXXXX2
XXXXXXXXXXXXXXX3
Controller 1
XXXXXXXXXXXXXXX4
XXXXXXXXXXXXXXX5
XXXXXXXXXXXXXXX6
XXXXXXXXXXXXXXX7
NOTE: In WWNs, X is an arbitrary number or character. The ports in the same apparatus have the identical value.
Path Status and Examples of the Recovery Procedure
This section describes errors that require recovery operation on the external storage system side
when the path status is not normal. When the path status is not normal, see Table 42 (page 141)
140 Connecting External Storage Systems
to recover the path status. For other errors not described in this section, see “Troubleshooting for
XP External Storage” (page 126). If you cannot restore the path, call HP technical support.
Table 42 Path Status and Examples of the Recovery Procedure (Thunder 9500V)
Path Status
Examples of the Recovery Procedure
External device setting
changed
Settings of the LU paths may have been changed by LUN Manager. Check the
settings of the LU paths. If the settings of the LU paths have been changed,
change the settings back to the ones when the volume is mapped. Or use XP
External Storage to perform the Delete LU operation and perform the Add LU
operation again.
The access attribute of the volume may have been changed by Data Retention
Utility. Check the access attribute of the volume. If the volume is protected by
the access attribute, release the protection.
Illegal request or
Response error
The volume may have been set as a pair volume for data copy. Check if the
volume is set as a pair volume of XP Business Copy, XP Continuous Access, or
other copy program. If the volume is set as a pair volume, the volume may be
protected because of the pair status. When the volume is protected, change
the pair status or delete the pair.
The access attribute of the volume may have been changed by Data Retention
Utility. Check the access attribute of the volume. If the volume is protected by
the access attribute, release the protection.
Cannot detect port
There is a problem with the connection to the external storage system. The
possible causes are:
• The fiber cable is not physically connected in the proper way.
• The setting of the topology does not match between the external port and
the target port.
• If the external storage system is connected through switches, the settings for
the switches may not be appropriate.
Make sure that the fiber cable is connected properly, and then set the Fibre
Channel port properly using LUN Manager.
The host group security may have been enabled by LUN Manager. Check if
the host group security is enabled or not. If the host group security is enabled,
disable the host group security.
USP V/VM Storage System
When connecting a USP V/VM storage system as the external storage system, you need to set the
port to the host group for the Windows hosts (host mode 0C: Windows, host mode 2C: Windows
Extension).
Also, the port attribute must be the target port or the RCU target port.
Path Status and Examples of the Recovery Procedure
This section describes errors that require recovery operation on the external storage system side
when the path status is not normal. When the path status is not normal, see Table 43 (page 142)
to recover the path status. For other errors not described in this section, see “Troubleshooting for
XP External Storage” (page 126). If you cannot restore the path, call HP technical support.
USP V/VM Storage System 141
Table 43 Path Status and Examples of the Recovery Procedure (USP V/VM)
Path Status
Examples of the Recovery Procedure
External device setting
changed
Settings of the LU paths may have been changed by LUN Manager. Check the
settings of the LU paths. If the settings of the LU paths have been changed,
change the settings back to the ones when the volume is mapped. Or use XP
External Storage to perform the Delete Volume operation and perform the Add
Volume operation again.
The access attribute of the volume may have been changed by Data Retention
Utility. Check the access attribute of the volume. If the volume is protected by
the access attribute, release the protection.
Illegal request or
Response error
The volume may have been set as a pair volume for data copy. Check if the
volume is set as a pair volume of XP Business Copy, XP Continuous Access, XP
Continuous Access Journal, or other copy program. If the volume is set as a
pair volume, the volume may be protected because of the pair status. When
the volume is protected, change the pair status or delete the pair.
The access attribute of the volume may have been changed by Data Retention
Utility. Check the access attribute of the volume. If the volume is protected by
the access attribute, release the protection.
Cannot detect port
There is a problem with the connection to the external storage system. The
possible causes are:
• The fiber cable is not physically connected in the proper way.
• The setting of the topology does not match between the external port and
the target port.
• If the external storage system is connected through switches, the settings for
the switches may not be appropriate.
Make sure that the fiber cable is connected properly, and then set the Fibre
Channel port properly using LUN Manager.
The LUN security may have been enabled by LUN Manager. Check if the LUN
security is enabled or not. If the LUN security is enabled, disable the LUN
security.
TagmaStore USP/NSC Storage System
When connecting a TagmaStore USP or NSC storage system as the external storage system, you
need to set the port to the host group for the Windows hosts (host mode 0C: Windows, host mode
2C: Windows Extension).
Also, the port attribute must be the target port or the RCU target port.
Setting the Host Mode Option for a Volume Larger Than 2 TB (USP/NSC)
If a volume that has the capacity of more than 2 TB is mapped as an external volume, host mode
option No. 24 must be enabled. If No. 24 is disabled, a volume that has the capacity of more
than 2 TB cannot be mapped as an external volume. For instructions on the host mode option, see
the HP StorageWorks XP24000/XP20000 LUN Manager User Guide.
Path Status and Examples of the Recovery Procedure
This section describes errors that require recovery operation on the external storage system side
when the path status is not normal. When the path status is not normal, see Table 44 (page 143)
to recover the path status. For other errors not described in this section, see “Troubleshooting for
XP External Storage” (page 126). If you cannot restore the path, call HP technical support.
142 Connecting External Storage Systems
Table 44 Path Status and Examples of the Recovery Procedure (USP V/VM)
Path Status
Examples of the Recovery Procedure
External device setting
changed
Settings of the LU paths may have been changed by LUN Manager. Check the
settings of the LU paths. If the settings of the LU paths have been changed,
change the settings back to the ones when the volume is mapped. Or use XP
External Storage to perform the Delete LU operation and perform the Add LU
operation again.
The access attribute of the volume may have been changed by Data Retention
Utility. Check the access attribute of the volume. If the volume is protected by
the access attribute, release the protection.
Illegal request or
Response error
The volume may have been set as a pair volume for data copy. Check if the
volume is set as a pair volume of XP Business Copy, XP Continuous Access, XP
Continuous Access Journal, or other copy program. If the volume is set as a
pair volume, the volume may be protected because of the pair status. When
the volume is protected, change the pair status or delete the pair.
The access attribute of the volume may have been changed by Data Retention
Utility. Check the access attribute of the volume. If the volume is protected by
the access attribute, release the protection.
Cannot detect port
There is a problem with the connection to the external storage system. The
possible causes are:
• The fiber cable is not physically connected in the proper way.
• The setting of the topology does not match between the external port and
the target port.
• If the external storage system is connected through switches, the settings for
the switches may not be appropriate.
Make sure that the fiber cable is connected properly, and then set the Fibre
Channel port properly using LUN Manager.
The LUN security may have been enabled by LUN Manager. Check if the LUN
security is enabled or not. If the LUN security is enabled, disable the LUN
security.
Lightning 9900V Storage System
When connecting a Lightning 9900V storage system as the external storage system, you need to
set the port to the host group for the Windows hosts (host mode 0C: Windows, host mode 2C:
Windows Extension).
Also, the port attribute must be the target port or the RCU target port.
Path Status and Examples of the Recovery Procedure
This section describes errors that require recovery operation on the external storage system side
when the path status is not normal. When the path status is not normal, see Table 45 (page 144)
to recover the path status. For other errors not described in this section, see “Troubleshooting for
XP External Storage” (page 126). If you cannot restore the path, call HP technical support (see
Lightning 9900V Storage System 143
Table 45 Path Status and Examples of the Recovery Procedure (Lightning 9900V)
Path Status
Examples of the Recovery Procedure
External device setting
changed
Settings of the LU paths may have been changed by LUN Manager. Check the
settings of the LU paths. If the settings of the LU paths have been changed,
change the settings back to the ones when the volume is mapped. Or use XP
External Storage to perform the Delete LU operation and perform the Add LU
operation again.
The access attribute of the volume may have been changed by Data Retention
Utility. Check the access attribute of the volume. If the volume is protected by
the access attribute, release the protection.
Illegal request or
Response error
The volume may have been set as a pair volume for data copy. Check if the
volume is set as a pair volume of XP Business Copy, XP Continuous Access, or
other copy program. If the volume is set as a pair volume, the volume may be
protected because of the pair status. When the volume is protected, change
the pair status or delete the pair.
The access attribute of the volume may have been changed by Data Retention
Utility. Check the access attribute of the volume. If the volume is protected by
the access attribute, release the protection.
Cannot detect port
There is a problem with the connection to the external storage system. The
possible causes are:
• The fiber cable is not physically connected in the proper way.
• The setting of the topology does not match between the external port and
the target port.
• If the external storage system is connected through switches, the settings for
the switches may not be appropriate.
Make sure that the fiber cable is connected properly, and then set the Fibre
Channel port properly using LUN Manager.
The LUN security may have been set by LUN Manager. Check if the LUN security
is set or not. If the LUN security is set, remove the setting of the LUN security.
Lightning 9900 Storage System
When connecting a Lightning 9900 storage system as the external storage system, you need to
set the host mode of the port to PC Server (0C).
Also, the port attribute must be the target port or the RCU target port.
Path Status and Examples of the Recovery Procedure
This section describes errors that require recovery operation on the external storage system side
when the path status is not normal. When the path status is not normal, see Table 46 (page 145)
to recover the path status. For other errors not described in this section, see “Troubleshooting for
XP External Storage” (page 126). If you cannot restore the path, call HP technical support (see
144 Connecting External Storage Systems
Table 46 Path Status and Examples of the Recovery Procedure (Lightning 9900)
Path Status
Examples of the Recovery Procedure
External device setting
changed
Settings of the LU paths may have been changed by LUN Manager. Check the
settings of the LU paths. If the settings of the LU paths have been changed,
change the settings back to the ones when the volume is mapped. Or use XP
External Storage to perform the Delete LU operation and perform the Add LU
operation again.
Illegal request or
Response error
The volume may have been set as a pair volume for data copy. Check if the
volume is set as a pair volume of XP Business Copy, XP Continuous Access, or
other copy program. If the volume is set as a pair volume, the volume may be
protected because of the pair status. When the volume is protected, change
the pair status or delete the pair.
Cannot detect port
There is a problem with the connection to the external storage system. The
possible causes are:
• The fiber cable is not physically connected in the proper way.
• The setting of the topology does not match between the external port and
the target port.
• If the external storage system is connected through switches, the settings for
the switches may not be appropriate.
Make sure that the fiber cable is connected properly, and then set the Fibre
Channel port properly using LUN Manager.
The LUN security may have been set by LUN Manager. Check if the LUN security
is set or not. If the LUN security is set, remove the setting of the LUN security.
SVS200 Storage System
When connecting an SVS200 storage system as the external storage system, you need to set the
port to the host group for the Windows hosts (host mode 0C: Windows, host mode 2C: Windows
Extension).
Also, the port attribute must be the target port or the RCU target port.
If you are using the microcode that does not support the SVS200 storage system, the SVS200
storage system is recognized as the XP12000 storage system. If you need the connected external
storage system to be recognized as the SVS200 storage system, use the microcode of the version
that supports the SVS200 storage system (which is the microcode version 50-07-0X-XX/XX or
higher). If you have used an earlier microcode version that does not support the SVS200 storage
system to map the volumes of the SVS storage system, delete the mapping setting and then change
the microcode version to the one that supports the SVS200 storage system.
Path Status and Examples of the Recovery Procedure
This section describes errors that require recovery operation on the external storage system side
when the path status is not normal. When the path status is not normal, see Table 47 (page 146)
to recover the path status. For other errors not described in this section, see “Troubleshooting for
XP External Storage” (page 126). If you cannot restore the path, call HP technical support (see
SVS200 Storage System 145
Table 47 Path Status and Examples of the Recovery Procedure (SVS200)
Path Status
Examples of the Recovery Procedure
External device setting
changed
Settings of the LU paths may have been changed by LUN Manager. Check the
settings of the LU paths. If the settings of the LU paths have been changed,
change the settings back to the ones when the volume is mapped. Or use XP
External Storage to perform the Delete LU operation and perform the Add LU
operation again.
The access attribute of the volume may have been changed by HP StorageWorks
XP LUN Security Extension. Check the access attribute of the volume. If the
volume is protected by the access attribute, release the protection.
Illegal request or
Response error
The volume may have been set as a pair volume for data copy. Check if the
volume is set as a pair volume of XP Business Copy, XP Continuous Access, XP
Continuous Access Journal, or other copy program. If the volume is set as a
pair volume, the volume may be protected because of the pair status. When
the volume is protected, change the pair status or delete the pair.
The access attribute of the volume may have been changed by XP LUN Security
Extension. Check the access attribute of the volume. If the volume is protected
by the access attribute, release the protection.
Cannot detect port
There is a problem with the connection to the external storage system. The
possible causes are:
• The fiber cable is not physically connected in the proper way.
• The setting of the topology does not match between the external port and
the target port.
• If the external storage system is connected through switches, the settings for
the switches may not be appropriate.
Make sure that the fiber cable is connected properly, and then set the Fibre
Channel port properly using LUN Manager.
The LUN security may have been enabled by LUN Manager. Check if the LUN
security is enabled or not. If the LUN security is enabled, disable the LUN
security.
HP StorageWorks EVA Storage System
System Parameters
When connecting an EVA storage system as an external storage system, set the system parameters
appropriately for the connecting configuration.
Table 48 System Parameters for Connecting an EVA Storage System
Parameter
Parameter Setting
Add a Host
Host OS
Windows
Identifying Logical Volumes (Using Characteristic2)
When the connected external storage system is an EVA storage system, LUNs appear as
Characteristic1 in the XP External Storage windows.
If you search for the logical volumes specifying the WWN indicating EVA Port A in the configuration,
each of HostGroup-1 and HostGroup-2. In this case, two different logical volumes that have the
same name, such as LUN 1 and LUN 2, are found as the logical volumes that can be connected
from EVA Port A, but you cannot tell which LUN 1 and LUN 2 belong to HostGroup-1 or
HostGroup-2 only by Characteristic1.
146 Connecting External Storage Systems
Characteristic2 in the XP External Storage windows. The first 32 characters of Characteristic2
indicate the World Wide LUN Name that can be found on the EVA storage system side. You can
identify the logical volume of the EVA storage system by this World Wide LUN Name.
Figure 44 Configuration Example for which Logical Volumes Cannot be Identified only by
Characteristic
Behavior of the Alternate Path
When an EVA storage system is connected, the behavior of the alternate path differs depending
on the microcode version of the EVA storage system.
If the subsystem system type is EVA3000/5000, the behavior of the alternate path differs between
the EVA storage system of the microcode version 4.000 or later and the EVA storage systems of
the earlier microcode versions.
To replace the microcode of the EVA storage system, check whether the behavior of the alternate
path changes as a result of changing the microcode version. If the behavior of the alternate path
changes, perform the Delete Volume operation of XP External Storage to release the setting of
mapping the EVA storage system volume before you actually replace the microcode.
See the EVA storage system manuals for how the behavior of the alternate path changes.
Sun StorEdge 6120/6320
When connecting a Sun StorEdge 6120/6320 as an external storage system, set the system
6120/6320 and set the parameters appropriately for the connecting configuration.
Table 49 System Parameter (Connecting Sun StorEdge 6120/6320)
Parameter
Parameter Setting
port host
SUN
Sun StorageTek FlexLine 380
When you connect a Sun StorageTek FlexLine 380 as an external storage system, set the system
FlexLine 380 and set the parameters appropriately for the connecting configuration.
Sun StorEdge 6120/6320 147
Table 50 System Parameter (Sun StorageTek FlexLine 380)
Parameter
Parameter Setting
host type
Windows Non-clustered (DMP Support)
Sun StorageTek 2540
When connecting a Sun StorageTek 2540 as an external storage system, set the system parameters
parameters appropriately for the connecting configuration.
Table 51 System Parameter (Sun StorageTek 2540)
Parameter
Parameter Setting
host type
Windows 2K non Clustered DMP
Sun StorageTek V2X2
When connecting a Sun StorageTek V2X2 as an external storage system, make sure that only one
cross-subsystem path is configured when you map external volumes. Do not add any alternate
paths after you finish mapping external volumes.
EMC CLARiiON CX Series
When you connect an EMC CLARiiON CX series as an external storage system, set the system
documentation and set the parameters appropriately to connect your configuration.
Table 52 System Parameters (EMC CLARiiON CX series)
Parameter
Parameter Setting
CLARiiON Open
2
Initiator Type
Failover Mode
Notes on Connecting an EMC CLARiiON CX Series
Volumes created with Individual Disk Units (JBOD disks) of EMC CLARiiON CX series are not
supported.
The following restrictions are for the use of the RAID-6 volume for the EMC CLARiiON CX series.
Moreover, when you downgrade a version of a storage system that does not support the RAID-6
volume from a version of a storage system that supports the RAID-6 volume, the configuration of
the EMC CLARiiON CX series should be changed.
148 Connecting External Storage Systems
Table 53 Restrictions for Connecting an EMC CLARiiON CX Series
Version
Restrictions
60-04-04-00/00 and higher, and lower than
60-06-00-00/00
The RAID-6 volume for the EMC CLARiiON CX series can
be used by installing the profile for supporting the RAID-6
volume for the EMC CLARiiON CX series.
However, the RAID-6 volume and the other RAID volume
cannot be defined in the same port. Either the RAID-6
mapping volume or the other RAID type mapping volume
might be blockaded when those volumes are added in the
same port.
The RAID-6 volume and the other RAID volume that are
defined in separate ports are displayed as different devices.
60-06-00-00/00 and higher
The RAID-6 volume and the other RAID volume can be
defined and mapped in the same port.
The volume that is mapped by a storage system lower than
60-06-00-00/00 can be continuously used. However, the
volumes that have been displayed as different devices are
displayed as one device.
NOTE: The RAID-6 mapping volume is blockaded without
exception when you downgrade a storage system to a
version lower than 60-06-00-00/00. Therefore, delete the
RAID-6 volume when you downgrade a storage system.
After the downgrade, the restrictions described in the
column for 60-04-04-00/00 and higher, and lower than
60-06-00-00/00 in this table are applied. Change the
definition to the other port when the RAID-6 volume and
the other RAID volume are defined in the same port.
System Option mode
When you connect an EMC CLARiiON CX series as an external storage system, set system option
mode 725 of the local storage system. If system option mode 725 is not set, the external storage
system might be blocked when performing maintenance, including rebooting the controller of the
external storage system by the firmware update and so on. For instructions about setting system
option mode 725, contact HP
EMC Symmetrix Series
If you have or plan to have EMC logical devices with addresses over FFF provisioned to a storage
system, to display these addresses correctly in the Characteristic1 field in the External Volumes list
on the Volume Operation window, you must do the following:
Procedure 1
1. Check the EMC Symmetrix SCSI flags listed on the EMC Command Center Display for the
EMC adapters that are connected to or will be connected to the storage system external ports.
Ensure that the SC3 flag is enabled and the SPC2 flag is disabled.
2. Set SOM 745 to ON. An HP-authorized support person is required to do this service action
from the SVP.
(page 55)), perform the CheckPaths operation for paths that are already mapped. An alternate
method is to wait at least 1 hour, and then the device health check is automatically performed.
4. After processing, click Refresh to update the Characteristic1 field. The volumes with EMC
logical device addresses over FFF will display correctly.
If CheckPaths is performed while a ShadowImage for Mainframe pair and an HP StorageWorks
XP for FlashCopy Mirroring Software pair are defined in the specified volume, the CheckPaths
operation is rejected with a 605 2518 message. If a ShadowImage for Mainframe pair and a
FlashCopy Mirroring pair are defined in the specified volume, do not perform CheckPaths, but
wait for the device health check to automatically update the Characteristic1 field.
EMC Symmetrix Series 149
When you connect an EMC Symmetrix series as an external storage system, set the system
Symmetrix series and set the parameters appropriately to connect your configuration.
Table 54 System Parameters for Connecting EMC Symmetrix Series
Parameter
SC3 flag
SPC2 flag
Parameter Setting
Enable
Disable
IBM DS3000/DS4000/DS5000 Series
When connecting an IBM DS3000/DS4000/DS5000 series as an external storage system, set
the system parameters of the IBM DS3000/DS4000/DS5000 series according to Table 55 (page
IBM DS4000/DS5000 series and set the parameters appropriately for the connecting configuration.
Table 55 System Parameter (IBM DS3000/DS4000/DS5000 Series)
Parameter
Parameter Setting
host type
When alternate paths are connected to different clusters
on the DS3000/DS4000/DS5000 series side:
Linux
System Parameter for Connecting IBM SVC Series
When connecting an IBM SVC series as an external storage system, set the system parameters of
the IBM SVC series according to the following table. For the system parameters that are not in the
following table, refer to the documentation of the IBM SVC series and set the parameters
appropriately for the connecting configuration.
Table 56 System Parameter (IBM SVC Series)
Parameter
Parameter Setting
host type
Generic
Notes on Connecting IBM XIV Series
When connecting an IBM XIV series as an external storage system, note that the type of display
of the system and device serial number differs between IBM XIV series and USP V/VM.
Table 57 Serial number display (IBM XIV Series)
Display in USP V/VM
Display in IBM XIV
Item
Type
Item
Type
The first 2 digits of Serial
Number
Decimal value
The first 2 digits of (System) Decimal value
Serial number
The last 5 digits of Serial
Number
Hexadecimal value
Hexadecimal value
The last 5 digits of (System) Decimal value
Serial number
Characteristic 1
Device serial number
Decimal value
150 Connecting External Storage Systems
Fujitsu FibreCAT CX Series
System Option mode
When you connect a Fujitsu FibreCAT CX series as an external storage system, set system option
mode 725 of the local storage system. If system option mode 725 is not set, the external storage
system might be blocked when performing maintenance, including rebooting the controller of the
external storage system by the firmware update and so on. For instructions about setting system
option mode 725, contact
System Parameter for Connecting Fujitsu FibreCAT CX Series
When you connect a Fujitsu FibreCAT CX series as an external storage system, set the system
parameters of the Fujitsu FibreCAT CX series according to the following table. For the system
parameters that are not in the following table, refer to the documentation of the Fujitsu FibreCAT
CX series and set the parameters appropriately for the connecting configuration.
Table 58 System Parameters for Connecting Fujitsu FibreCAT CX Series
Parameter
Parameter Setting
CLARiiON Open
2
Initiator Type
Failover Mode
Notes on Connecting Fujitsu FibreCAT CX Series
Volumes created with the RAID0 level or Individual Disk Units (JBOD disks) of Fujitsu FibreCAT CX
series are not supported.
SGI IS4600 Series
When connecting an SGI IS4600 series as an external storage system, set the system parameters
of the SGI IS4600 series according to the following table. For system parameters that are not in
the following table, refer to the documentation of the SGI IS4600 series and set the parameters
appropriately for the connecting configuration.
Table 59 SGI IS4600 Series
Parameter
Parameter Setting
host type
When alternate paths are connected to different clusters
on the SGI IS4600 series side: Linux
Non-HP Storage Systems
Generally, when connecting a non-HP storage system as the external storage system, the non-HP
storage system port must be configured as a target attached to a Windows host. The third-party
vendor should be contacted as necessary for the technical details to accomplish this.
Fujitsu FibreCAT CX Series 151
B Required Volume Capacity for Each Emulation Type
When you map an external volume as an internal volume, you need to specify the emulation type
for the mapped volume. The maximum capacity of an external volume depends on the specified
emulation type.
Determining Required External Volume Capacity
The capacity required for the LDEV to be mapped is the total capacity of the data area for storing
the actual user data and the control information area for storing the control information. The
capacity of the data area (called base data area capacity) and the capacity of the control
information area (called control information area capacity) depend on the emulation type. The
minimum capacity of data area for Custom-sized Volume (CV) (called minimum data area capacity)
also depends on the emulation type. For detailed information about the LDEV capacity for each
•
You can calculate the minimum capacity required for an LDEV (minimum LDEV capacity) for
each emulation type using the following equation:
Minimum LDEV capacity = Minimum data area capacity + control information area capacity
If the capacity of the external volume is less than this minimum LDEV capacity, the emulation
type cannot be specified.
•
You can calculate the base LDEV capacity for each emulation type using the following equation:
Base LDEV capacity = Base data area capacity + Control information area capacity
When the capacity of the external volume is less than the base LDEV capacity of the emulation
type, one Custom-sized Volume (CV) is created in the external volume as you map the volume.
When the capacity of the external volume is more than the base LDEV capacity of the emulation
type, the external volume is divided into multiple LDEVs, each of which has the base LDEV capacity.
Because the OPEN-V emulation type supports 4 TB of the volume at the maximum, one LDEV is
always created when the external volume is mapped.
If you use the VLL function, you can divide the mapped external volume into 2,048 CVs at the
maximum as your demand. However, the LDEVs as they are mapped are used for the OPEN-L
emulation type, because the VLL function is not applicable to the OPEN-L emulation type.
When the capacity of the mapped external volume is more than the maximum capacity of the
specified emulation type, a certain part of external volume cannot be used. Table 60 (page 152)
shows the maximum usable capacity of the external volume of each emulation type. For detailed
Table 60 Maximum Usable Capacity of an External Volume
Emulation Type
Maximum Usable Capacity of External Volume
OPEN-V
4 TB
OPEN emulation type other than OPEN-V 767.99 GB (1,610,612,640 blocks)
3380 mainframe emulation type
3390 mainframe emulation type
767.99 GB (1,610,612,640 blocks)
927.99 GB (1,946,156,940 blocks)
“Idea of LDEV Capacity” (page 153) shows the relationship of the minimum LDEV capacity, base
LDEV capacity, minimum data area capacity, base data area capacity, and control information
area capacity.
Figure 46 (page 153) shows how to figure out the volume capacity using OPEN-3.
152 Required Volume Capacity for Each Emulation Type
Figure 45 Idea of LDEV Capacity
Figure 46 Example of How to Figure Out the Volume Capacity (For OPEN-3)
Capacity List for Each Emulation Type
This section explains the LDEV capacity and volume capacity for each emulation type in the units
of blocks and cylinders.
The numbers of cylinders are calculated from the following formulas.
For 3380 mainframe volumes: 1 cylinder = 1,440 blocks
For 3390 mainframe volumes: 1 cylinder = 1,740 blocks
The minimum data area capacity, the base data area capacity, and control information area
type, CVs cannot be created. Therefore, the base data area capacity and minimum data area
capacity for OPEN-L emulation type are the same. For the OPEN-V emulation type, the base data
area capacity is not listed because there is no concept of the base data area capacity.
The base LDEV capacity, the minimum LDEV capacity, the maximum external volume capacity,
and the number of LDEVs that can be defined for the external volume with maximum capacity are
minimum LDEV capacity are the same, because CVs cannot be created. For the OPEN-V emulation
type, the base LDEV capacity is not listed because there is no concept of the base LDEV capacity.
For an emulation type of an open system other than OPEN-V, the LDEV capacity that can be made
when an external volume is mapped is divisible by 1,440 blocks. For an emulation type of a
Capacity List for Each Emulation Type 153
mainframe system, the LDEV capacity that can be made when an external volume is mapped is
an integer when converted into a cylinder.
Table 61 LDEV Capacity Information for Each Emulation Type
Emulation
Type
Minimum Data Area
Capacity
Base Data Area Capacity
Control Information Area
Capacity
Blocks
72,000
Cylinders
50
Blocks
Cylinders
3,339
Blocks
10,080
Cylinders
3380-3
4,808,160
4,808,160
4,808,160
4,808,160
3,823,200
3,823,200
3,823,200
3,823,200
5,809,860
5,809,860
5,809,860
5,809,860
5,809,860
17,429,580
17,429,580
17,429,580
17,429,580
57,002,400
57,002,400
57,002,400
57,002,400
114,004,800
114,004,800
114,004,800
114,004,800
4,806,720
14,351,040
14,423,040
28,452,960
71,192,160
-
7
7
7
7
7
7
7
7
6
6
6
6
6
3380-3A
3380-3B
3380-3C
3380-K
72,000
72,000
72,000
72,000
72,000
72,000
72,000
87,000
87,000
87,000
87,000
87,000
87,000
87,000
87,000
87,000
87,000
87,000
87,000
87,000
87,000
87,000
87,000
87,000
72,000
72,000
72,000
72,000
71,192,160
96,000
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
3,339
3,339
3,339
2,655
2,655
2,655
2,655
3,339
3,339
3,339
3,339
3,339
10,017
10,017
10,017
10,017
32,760
32,760
32,760
32,760
65,520
65,520
65,520
65,520
-
10,080
10,080
10,080
10,080
10,080
10,080
10,080
10,440
10,440
10,440
10,440
10,440
43,500
43,500
43,500
43,500
40,020
40,020
40,020
40,020
92,220
92,220
92,220
92,220
11,520
38,880
38,880
27,360
10,080
0
3380-KA
3380-KB
3380-KC
3390-3
3390-3A
3390-3B
3390-3C
3390-3R
3390-9
25
25
25
25
23
23
23
23
53
53
53
53
3390-9A
3390-9B
3390-9C
3390-L
3390-LA
3390-LB
3390-LC
3390-M
3390-MA
3390-MB
3390-MC
OPEN-3
OPEN-8
OPEN-9
OPEN-E
OPEN-L
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
OPEN-V
-
154 Required Volume Capacity for Each Emulation Type
Table 62 Volume Capacity Information for Each Emulation Type
Emulation
Type
Base LDEV Capacity
Minimum LDEV Capacity Maximum Capacity of External Maximum
Volume
Number of
LDEVs1
Blocks
Cylinders
Blocks
82,080
Cylinders
Blocks
Cylinders
1,118,481
1,118,481
1,118,481
1,118,481
1,118,481
1,118,481
1,118,481
1,118,481
1,118,481
1,118,481
1,118,481
1,118,481
1,118,481
1,118,481
1,118,481
1,118,481
1,118,481
1,118,481
1,118,481
1,118,481
1,118,481
1,118,481
1,118,481
1,118,481
1,118,481
-
3380-3
4,818,240
4,818,240
4,818,240
4,818,240
3,833,280
3,833,280
3,833,280
3,833,280
5,820,300
5,820,300
5,820,300
5,820,300
5,820,300
17,473,080
17,473,080
17,473,080
17,473,080
57,042,420
57,042,420
57,042,420
57,042,420
114,097,020
114,097,020
114,097,020
114,097,020
4,818,240
14,389,920
14,461,920
28,480,320
71,202,240
-
3,346
3,346
3,346
3,346
2,662
2,662
2,662
2,662
3,345
3,345
3,345
3,345
3,345
10,042
10,042
10,042
10,042
32,783
32,783
32,783
32,783
65,573
65,573
65,573
65,573
-
57 1,610,612,640
57 1,610,612,640
57 1,610,612,640
57 1,610,612,640
57 1,610,612,640
57 1,610,612,640
57 1,610,612,640
57 1,610,612,640
56 1,946,156,940
56 1,946,156,940
56 1,946,156,940
56 1,946,156,940
56 1,946,156,940
75 1,946,156,940
75 1,946,156,940
75 1,946,156,940
75 1,946,156,940
73 1,946,156,940
73 1,946,156,940
73 1,946,156,940
73 1,946,156,940
103 1,946,156,940
103 1,946,156,940
103 1,946,156,940
103 1,946,156,940
1,610,612,640
334
3380-3A
3380-3B
3380-3C
3380-K
82,080
82,080
82,080
82,080
82,080
82,080
82,080
97,440
334
334
334
420
420
420
420
334
334
334
334
334
111
111
111
111
34
3380-KA
3380-KB
3380-KC
3390-3
3390-3A
3390-3B
3390-3C
3390-3R
3390-9
97,440
97,440
97,440
97,440
130,500
130,500
130,500
130,500
127,020
127,020
127,020
127,020
179,220
179,220
179,220
179,220
83,520
110,880
110,880
99,360
3390-9A
3390-9B
3390-9C
3390-L
3390-LA
3390-LB
3390-LC
3390-M
3390-MA
3390-MB
3390-MC
OPEN-3
OPEN-8
OPEN-9
OPEN-E
OPEN-L
34
34
34
17
17
17
17
-
-
-
-
-
-
334
111
111
56
-
1,610,612,640
-
-
1,610,612,640
-
-
1,610,612,640
-
-
71,202,240
96,000
1,610,612,640
-
22
OPEN-V
-
8,589,934,592
-
1
1
This number refers to the number of LDEVs when an external volume with maximum capacity is mapped.
Capacity List for Each Emulation Type 155
C Adjusting the Volume Capacities for Pairs
When you create a pair, the capacity of an S-VOL must be the same as that of a P-VOL. To set a
desired volume to a pair, you may need to adjust the capacity of the volume. This section describes
the procedure for adjusting the volume capacity.
To adjust the capacity of the storage system volume to create a pair (if you want to use an external
volume as P-VOL when copying data from an external storage system):
1. Map the external volume (A) as an internal volume (B) of the local storage system. Make sure
that the emulation type of the volume is OPEN-V.
2. Select the storage system volume (C) which has the same capacity as the mapped external
volume (B), or which has the bigger capacity than the mapped external volume (B). The
emulation type of the volume (C) has to be OPEN-V.
3. If you select the storage system volume (C) that has a bigger capacity than the mapped external
volume (B), make the CV that has the same capacity as the mapped external volume (B) out
of the storage system volume (C) using the VLL function. For the VLL function, see the HP
StorageWorks XP24000/XP20000 Virtual LVI/LUN (VLL) and Volume Shredder User Guide.
NOTE:
•
When you make the CV that has the same capacity as the mapped external volume (B)
using the VLL function, make the capacity of CV according to the Blocks capacity that is
displayed in the Capacity column on the LDEV Information dialog box of XP External
•
To create an XP Continuous Access pair with an XP1024/XP128 Disk Array or Lightning
9900C series storage system volume, you may not be able to create a CV that has the
same capacity as the mapped external volume (B) since the VLL function does not allow
you to specify the capacity in Blocks. In this case, you cannot create an XP Continuous
Access pair.
4. Create a pair.
Figure 47 Copying Data from an External Storage System (Using an External Volume as the P-VOL)
To adjust the capacity of the external volume to create a pair (if you want to set an external volume
as S-VOL when copying data to an external storage system):
156 Adjusting the Volume Capacities for Pairs
1. Map the external volume (A) as an internal volume (B) of the local storage system. Set the
emulation type as same as that of the copy source volume (C).
2. Check the capacity of the internal volume (B) where the external volume (A) is mapped. If the
capacity of the mapped external volume (B) is not same as the copy source volume (C), use
the VLL function to create a CV that has the same capacity as the copy source volume (C) out
of the volume (B).
3. Create a pair.
Figure 48 Copying Data to an External Storage System (Setting an External Volume as an S-VOL)
157
D The ExPath Tool
This appendix explains how to use the ExPath tool.
Overview of the ExPath Tool
The ExPath tool enables you to perform the Disconnect Volume command and the Check Path &
Restore Volume command on the command line. When you use the ExPath tool, you can perform
these commands on multiple volumes at a time.
If you use the ExPath tool, you can automate a series of operations for backing up or updating
data by using a function of the external storage system. For example, if you want to back up data,
you can automate the backup operation by writing the following operations in a batch file. Note
that you need to perform some operations before disconnecting the external volumes. For details
1. Perform the disconnect command to disconnect the external volumes.
The mapped external volumes stop accepting host I/O, and all the data in the cache memory
is written into the external volumes (all the data is destaged). The status of the external volumes
changes to Disconnect. The local storage system cannot access the external volumes in the
Disconnect status.
2. Back up the data in the external volumes by using a function of the external storage system.
If the external storage system provides a backup command, write this command in the batch
file. For details, see the documentation of the external storage system.
3. Perform the checkpath command to resume using the external volumes.
The local storage system can access the external volumes.
To use the ExPath tool, authentication information (Remote Web Console user ID and password)
is required. You can specify the authentication information by one of the following:
(a) Write the authentication information in a command file.
(b) Create an authentication file and specify this file as a parameter when executing the ExPath
tool.
When you want to encrypt the authentication information or when the SVP has an IPv6 address,
creation of an authentication file is required, as explained in (b). Note that users who do not have
the permission for using XP External Storage can use the ExPath tool.
Preparing for Using the ExPath Tool
The following components are required to use the ExPath tool:
•
A Windows computer
The ExPath tool runs on the following operating systems:
◦
◦
◦
Windows XP (on the Pentium or equivalent processor (32 bit))
Windows Server 2003 (on the Pentium or equivalent processor (32 bit))
Windows Vista (on the Pentium or equivalent processor (32 bit))
•
The Java Runtime Environment (JRE)
To use the ExPath tool, you must install Java Runtime Environment on your Windows computer.
The JRE version required for running the ExPath tool is the same as the JRE version required
for running Remote Web Console. For detailed information about the JRE version required for
158 The ExPath Tool
running Remote Web Console, see the HP StorageWorks XP24000/XP20000 Remote Web
Console User Guide.
•
The ExPath tool program
The ExPath tool is contained in CD-ROM Disc 2, which is named Host PP. Use the ExPath tool
version that is synchronized with the storage system microcode version. If the storage system
microcode is upgraded, upgrade the ExPath tool on your computer by using the disk that
comes with the storage system microcode.
Installing the ExPath Tool
To install the ExPath tool on a Windows computer:
1. Log into your computer as Administrator.
2. Insert the ExPath tool installation CD-ROM into the drive.
3. Locate the ExPthTooldirectory in the CD-ROM and copy the directory to the C drive.
4. Eject the installation CD-ROM from the drive.
The ExPthTooldirectory contains sample files. Before using sample files, you can modify the
files to suit your needs.
• checkPath.txt: A sample file for the checkpath command
• checkStatus.txt: A sample file for the checkstatus command
• disconnect.txt: A sample file for the disconnect command
• myPolicy.txt: A file that contains the script to be added to the Java policy file
• runWin.bat: A batch file to run the ExPath tool
Uninstalling the ExPath Tool
To uninstall the ExPath tool, delete the installed ExPthTooldirectory and all the subdirectories
and files in the directory.
Upgrading the ExPath Tool
If the storage system microcode is upgraded, you must upgrade the ExPath tool to the same version
as the storage system microcode version.
To upgrade the ExPath tool:
1. Log into your computer as Administrator.
2. Insert the ExPath tool installation CD-ROM into the drive.
3. Copy the files JSanRmiServerSx.jarand JSanExPthTool.jarand in the ExPthTool/
libdirectory in the CD-ROM and overwrite the files in the ExPthTool/libdirectory in the
C drive.
4. Make sure that the two files in the C drive have the same modified date as the files in the
CD-ROM.
5. Eject the installation CD-ROM from the drive.
Using the ExPath Tool
Use the ExPath tool in the following steps:
1. Create an authentication file. This step is not required if you write the authentication information
in a command file.
2. Edit the Java security policy.
3. Create a command file.
4. Run the ExPath tool.
Using the ExPath Tool 159
Creating an Authentication File
An authentication file is an encrypted file containing a user ID and a password. If the SVP has an
IPv6 address, an authentication file is required. To create an authentication file, perform the
following command at the command prompt.
Syntax
java -classpath
”classpath” sanproject.uvmdat.MakeAuthentication
svpip
UserID
Password>An_Authentication_File
Parameters
Parameter
Description
classpath
Specifies the paths to the JAR files
("./lib/JSanExPthTool.jar;./lib/JSanRmiServerSx.jar").
svpip
Specifies the IP address of the SVP. If the SVP has an IPv6
address, enclose the IPv6 address in square brackets [ ].
UserID
Specifies the Remote Web Console user ID.
Password
Specifies the password for the Remote Web Console user
ID.
An_Authentication_File
Specifies an authentication file name.
Examples
When the SVP has an IPv4 address:
java -classpath "./lib/JSanExPthTool.jar;./lib/JSanRmiServerSx.jar"
sanproject.uvmdat.MakeAuthentication 192.168.0.100 UserID
PASSWORD>Authentication.txt
When the SVP has an IPv6 address:
java -classpath
"./lib/JSanExPthTool.jar;./lib/JSanRmiServerSx.jar"
sanproject.uvmdat.MakeAuthentication
[fe80::1234] UserID PASSWORD>Authentication.txt
Editing the Java Security Policy
Add the following script to the Java policy file. This script is contained in the sample file named
myPolicy.txt. You can copy and paste it to the Java policy file.
grant {
permission java.security.AllPermission;
};
Creating a Command File
In a command file, you can write authentication information and commands that should be executed
on the external volume. Three kinds of commands are provided (disconnect, checkpath, and
checkstatus) and you can write only one kind of these commands in one command file. To use the
three kinds of these commands, you must create three command files. Sample files for these
commands are provided for your use. You can customize these files to suit your needs.
One line must contain only one command. You can specify multiple external volumes for one
command, and specify multiple commands in multiple lines. The maximum number of external
volumes that can be written in one command file is 256. Characters between semicolon (;) and
the end of line are recognized as a comment.
The following is an example of a command file for the disconnect command:
160 The ExPath Tool
; Disconnect
svpip 127.0.0.1
login root password
disconnect E1-1 E1-2
disconnect E2-1 E2-2
The svpip and login commands are used for writing the authentication information. If no
authentication file is created, the authentication information must be written in a command file as
shown above.
Running the ExPath Tool
To run the ExPath tool, write the following command in a batch file, and execute the batch file on
the command line. The ExPath tool cannot be started multiple times concurrently.
A sample batch file (runWin.bat) is provided for your use. You can customize this batch file to
suit your needs.
Syntax
java classpath
”classpath” properties_a_to_e sanproject.uvmdat.RJUvmMain
Parameters
Parameter
classpath
Description
Specifies the paths to the JAR files
("./lib/JSanExPthTool.jar;./lib/JSanRmiServerSx.jar").
(a) -Djava.security.policy=a policy file
path (Required)
Specifies the file that contains the Java security policy.
(b) -Duvm.authentication=an authentication Specifies the file that contains the authentication
information. To encrypt the authentication information or
to use an IPv6 address of the SVP, this parameter is
required. If the parameter is omitted, the authentication
information in a command file will be used.
file path
(c) -Duvm.command=a command file path (Required) Specifies the file that contains information about the
operation and target external volume.
(d) -Duvm.logpath=a directory where a log
file should be created
Specifies the directory where a log file should be created.
If this parameter is omitted, a log file will be created in the
current directory.
(e) -Duvm.logfile=a log file name
Specifies the log file name. If the directory already has a
log file with the same name, the log file will be overwritten.
If this parameter is omitted, a log file named
uvm-MMDDHHMMSS.logwill be created. MMDDHHMMSS
in the file name will be numbers indicating month, day,
hour, minute, and second. In addition, if this parameter is
omitted, a new log file will be created every time you start
the ExPath tool. Delete unnecessary log files regularly.
Example
java -classpath "./lib/JSanExPthTool.jar;./lib/JSanRmiServerSx.jar"
-Xmx268435456 -Djava.security.policy=myPolicy.txt
-Duvm.authentication=Authentication.txt -Duvm.command=command.txt
-Duvm.logpath=log sanproject.uvmdat.RJUvmMain
Termination Code
0: The ExPath tool finished successfully.
Using the ExPath Tool 161
-1: An error occurred.
If multiple external volumes are specified, 0 returns only when all the commands on all the external
volumes are finished successfully. When the checkstatus command is executed, different termination
codes will return.
An error (the termination code -1) occurs under the following conditions:
•
When a command file contains information about an external volume that does not exist.
When the disconnect or checkpath command is executed, the RMI server error (605, 5828)
occurs. When the checkstatus command is executed, the error "Unable to use the external
volume group" occurs.
•
•
When the ExPath tool is executed for a storage system other than an HP XP24000/XP20000
Disk Array.
When the version of the ExPath tool and the version of the storage system microcode do not
match.
Command Reference
You can write commands for the ExPath tool in a command file. The commands that can be written
are:
Table 63 Command List for the ExPath Tool
Command
svpip
Purpose
Description
For authentication. Required when no Specifies the IP address of the SVP.
authentication file is used.
login
Specifies the login user ID and the
password.
disconnect
checkpath
For external volume operations. Only Specifies the login user ID and the
one of these commands can be written password.
in one file.
Specifies the login user ID and the
password.
checkstatus
Retrieves external volume statuses.
svpip Command
Syntax
svpip
ip-address
Description
Specifies the IP address of the SVP. When the SVP has an IPv6 address, do not write this command
in a command file. Create an authentication file instead. If you specify an authentication file when
you run the ExPath tool, this command will be ignored.
Parameters
Parameter
ip-address
Description
Specifies the IPv4 address of the SVP.
Example
The following example specifies 158.214.127.170 as the IP address of the SVP:
svpip 158.214.127.170
162 The ExPath Tool
login Command
Syntax
login
user-ID
password
Description
Specifies the login user ID and the password. The svpip command must be written before this
command. If you specify an authentication file when you run the ExPath tool, this command will
be ignored.
Parameters
Parameter
Description
user-ID
Specifies the user ID of Remote Web Console.
password
Specifies the password for the user ID of Remote Web
Console.
Example
The following example uses root as a user name and password as a password:
svpip 158.214.127.170
login root password
disconnect Command
Syntax
disconnect
ExG-VPG[
ExG-VPG...]
Description
Disconnects external volumes. This command executes the same operation as the Disconnect External
Volumes command which you perform by using the Volume Operation window. After the disconnect
command is performed, only the external storage system can access the external volumes.
The disconnect command cannot be performed if the external volume is configured as a P-VOL or
the disconnect command.
The sample file disconnect.txtis provided for your use.
Parameters
Parameter
ExG-VPG
Description
ExG specifies the external volume group in the range of
E1 to E16384. VPG specifies the serial number within an
external volume group in the range of 1 to 4096.
Example
The following example disconnects the E1-1 and E1-2 external volumes:
disconnect E1-1 E1-2
Command Reference 163
checkpath Command
Syntax
checkpath
ExG-VPG[
ExG-VPG...]
Description
Resume using external volumes. This command executes the same operation as the Check Paths &
Restore Volume command which you perform by using the Volume Operation window. After the
checkpath command is performed, the local storage system can access the external volumes. For
The sample file checkPath.txtis provided for your use.
Parameters
Parameter
ExG-VPG
Description
ExG specifies the external volume group in the range of
E1 to E16384. VPG specifies the serial number within an
external volume group in the range of 1 to 4096.
Example
The following example resumes using the E1-1 and E1-2 external volumes:
checkpath E1-1 E1-2
checkstatus Command
Syntax
checkstatus
ExG-VPG[
ExG-VPG...]
Description
Retrieves external volume statuses and returns the termination code. The sample file
checkStatus.txtis provided for your use.
The external volume statuses are:
•
•
•
•
•
Normal: The external volume is in the normal status.
Destage: The writing of data from cache memory to the volume is in progress.
Disconnect: The connection to the external volume is stopped.
Checking: The checking of the status of the path to the external volume is in progress.
Blockade: The external volume is blocked.
Parameters
Parameter
ExG-VPG
Description
ExG specifies the external volume group in the range of
E1 to E16384. VPG specifies the serial number within an
external volume group in the range of 1 to 4096.
Example
The following example retrieves the statuses of the E1-1 and E1-2 external volumes:
checkstatus E1-1 E1-2
164 The ExPath Tool
Termination Code
-1: An error occurred.
Table 64 Termination Codes for the checkstatus Command and the External Volume Status
Termination Code
External Volume Status
Checking
Normal
Exists
N/A
Exists
N/A
Exists
N/A
Exists
N/A
Exists
N/A
Exists
N/A
Exists
N/A
Exists
N/A
Exists
N/A
Exists
N/A
Exists
N/A
Exists
N/A
Exists
N/A
Exists
N/A
Exists
N/A
Destage
N/A
Exists
Exists
N/A
N/A
Exists
Exists
N/A
N/A
Exists
Exists
N/A
N/A
Exists
Exists
N/A
N/A
Exists
Exists
N/A
N/A
Exists
Exists
N/A
N/A
Exists
Exists
N/A
N/A
Exists
Disconnect
N/A
N/A
N/A
Exists
Exists
Exists
Exists
N/A
N/A
N/A
N/A
Exists
Exists
Exists
Exists
N/A
N/A
N/A
N/A
Exists
Exists
Exists
Exists
N/A
N/A
N/A
N/A
Exists
Exists
Exists
Blockade
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
Exists
Exists
Exists
Exists
Exists
Exists
Exists
Exists
Exists
Exists
Exists
Exists
Exists
Exists
Exists
0x01
0x02
0x03
0x04
0x05
0x06
0x07
0x08
0x09
0x0A
0x0B
0x0C
0x0D
0x0E
0x0F
0x10
0x11
0x12
0x13
0x14
0x15
0x16
0x17
0x18
0x19
0x1A
0x1B
0x1C
0x1D
0x1E
N/A
N/A
N/A
N/A
N/A
N/A
N/A
Exists
Exists
Exists
Exists
Exists
Exists
Exists
Exists
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
Exists
Exists
Exists
Exists
Exists
Exists
Exists
Command Reference 165
Table 64 Termination Codes for the checkstatus Command and the External Volume Status (continued)
Termination Code
External Volume Status
Normal
Destage
Disconnect
Checking
Exists
Blockade
0x1F
Exists
Exists
Exists
Exists
Exists: The volumes in this status exist.
N/A: No volume in this status exists.
166 The ExPath Tool
Glossary
A
AMS
ATA
Adaptable module storage.
Advanced Technology Attachment standard.
C
CHA
Channel adapter. A device that provides the interface between the array and the external host
system. Occasionally, this term is used synonymously with the term channel host interface processor
(CHIP).
CV
Custom-sized volume.
E
ESCON
Enterprise systems connection An optical interface used to connect the mainframe to the control
unit; a predecessor to FICON.
ExG
External volume group.
F
FC
Fibre Channel. A network technology primarily used for storage networks.
Fibre connectivity. Hardware that connects the mainframe to the control unit.
FICON
H
HDD
Hard disk drive.
L
LD, LDEV
Logical device. An LDEV is created when a RAID group is carved into pieces according to the
selected host emulation mode (that is, OPEN-3, OPEN-8, OPEN-9). The number of resulting LDEVs
depends on the selected emulation mode. The term LDEV is also known as term volume.
LDKC
LUN
Logical disk controller.
Logical unit number.
M
MCU
MIH
Main control unit.
Missing interrupt handler.
O
OTP
Online transaction processing.
Primary volume.
P
P-VOL
PB
Petabyte. 1 PB (petabyte) = 1,0005 bytes (hard disk storage) or 1 PB (petabyte) = 1,024 TB or
1,0245 bytes (logical storage).
PCB
Printed circuit board.
R
RCU
Remote control unit.
167
S
S-VOL
S-VOL
Secondary or remote volume. The copy volume that receives the data from the primary volume.
Source volume (for ShadowImage for Mainframe) or secondary volume (for ShadowImage for
Mainframe, XP Continuous Access, and XP Continuous Access Journal).
SATA
SIM
Serial Advanced Technology Attachment.
Service information message.
SSID
SVP
Subsystem identifier; storage system identifier.
Service processor. A computer built into a disk array. The SVP, used only by an HP service
representative, provides a direct interface to the disk array.
SVS
Storage Virtualization System
T
TB
Terabyte. Equivalent to 1,000 Gb for data storage and statistics, or 1,024 Gb for memory.
Universal Storage Platform
U
USP
V
VDEV
VLL
virtual device
Virtual LVI/LUN
volume management area
Volume.
VMA
VOL, vol
W
WWN
World Wide Name
168 Glossary
Index
A
Attributes
O
operation tags
B
C
Cache
Overview, 9
P
Channels
Path Operation Window, 56
Port Operation Tree, 63
Port Operation Window, 62
Preview Dialog Box, 54
ESCON or FICON, 25
conventions
R
RCU Target, 63
D
document
XP Continuous Access or XP Continuous Access Journal,
documentation
S
E
spreadsheets
External volume
External Volume Mapping, 99
Status
cross-subsystem path, 60
Status:Disable button, 47
Status:Enable button, 47
storage capacity values
H
help
HP
storage systems
supported models, 9
System Requirements, 37
I
Initiator, 63
T
Initiator/External MIX mode restrictions
Target, 63
L
V
M
Volume Operation Window, 47
Mainframe volumes, 25
Mode
W
websites
169
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