Hitachi Universal Storage Platform V
Hitachi Universal Storage Platform VM
Hitachi Universal Volume Manager User’s Guide
FASTFIND LINK
MK-96RD626-07
Contents
Preface...................................................................................................ix
Intended Audience...............................................................................................x
Document Revision Level......................................................................................x
Source Documents for this Revision......................................................................xi
Changes in this Revision ......................................................................................xi
Document Organization .......................................................................................xi
Document Conventions...................................................................................... xiii
Getting Help ......................................................................................................xv
Comments.........................................................................................................xv
Hitachi Universal Volume Manager......................................................................1-2
Universal Volume Manager Components..............................................................2-4
Universal Volume Manager Operations................................................................2-7
Configuring Universal Volume Manager...............................................................2-8
Configuring External Volume Attributes...............................................................2-9
Cross-subsystem Paths....................................................................................2-11
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Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
Connecting Mainframe Volumes....................................................................... 2-19
Choosing Mapping Policy................................................................................. 2-20
LUN Manager and Configuration File Loader ..................................................... 2-25
LUN Expansion............................................................................................... 2-25
TrueCopy Operations...................................................................................... 2-30
System Requirements....................................................................................... 3-2
Universal Volume Manager Requirements........................................................... 3-5
Performance and Status Guidelines.................................................................. 3-11
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Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
Uninstalling Universal Volume Manager.............................................................3-13
Path Operation Window...................................................................................4-12
Path Operation Tree........................................................................................4-14
Setting Port of External Storage System..............................................................5-3
Mapping an External Volume Manually................................................................5-6
Set External Volume Parameter Dialog Box........................................................5-10
LDEV Mapping (Manual) Dialog Box..................................................................5-13
Example: How to Map LDEVs Manually..............................................................5-17
Configuring Cross-subsystem Path....................................................................5-21
Mapping Path Information Dialog Box...............................................................5-28
Contents
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Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
Turning On or Off Both Storage Systems.......................................................... 5-33
Editing Mapping Policy.................................................................................... 5-44
Deleting the External Volume Mapping............................................................. 5-45
Overview of Remote Command Devices ............................................................. 7-2
Guidelines for Remote Command Devices........................................................... 7-3
Troubleshooting................................................................................... 8-1
Calling the Hitachi Data Systems Support Center................................................. 8-6
System............................................................................................... A-1
Thunder 9500V Storage System......................................................................... A-5
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Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
USP V/VM Storage System................................................................................ A-9
(USP/NSC).........................................................................................A-10
Lightning 9900V Storage System......................................................................A-11
Lightning 9900 Storage System........................................................................A-12
SVS200 Storage System...................................................................................A-13
EVA Storage System........................................................................................A-15
Connected.........................................................................................A-17
Non-Hitachi Storage Systems ...........................................................................A-19
Capacity List for Each Emulation Type................................................................ B-4
Contents
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Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
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Contents
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
Preface
This document describes and provides instructions for using the Universal
Volume Manager software to configure and perform Hitachi Universal Volume
Manager Operations on the Hitachi Universal Storage Platform V and Hitachi
Universal Storage Platform VM storage system.
Please read this document carefully to understand how to use this product,
and maintain a copy for reference purposes.
This preface includes the following information:
ꢀ Comments
Notice: The use of Universal Volume Manager and all other Hitachi Data
Systems products is governed by the terms of your agreement(s) with Hitachi
Data Systems.
Preface
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Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
Intended Audience
This document is intended for system administrators, Hitachi Data Systems
representatives, and Authorized Service Providers who are involved in
installing, configuring, and operating the Hitachi Universal Storage Platform V
and Hitachi Universal Storage Platform VM storage systems.
This document assumes the following:
• The user has a background in data processing and understands RAID
storage systems and their basic functions.
• The user is familiar with the Hitachi Universal Storage Platform V and
Hitachi Universal Storage Platform VM storage systems and has read the
Universal Storage Platform V and Universal Storage Platform VM User and
Reference Guide.
• The user is familiar with the Storage Navigator software for the Universal
Storage Platform V and Hitachi Universal Storage Platform VM storage
systems and has read the Storage Navigator User’s Guide.
Product Version
This document revision applies to USP V/VM microcode 60-02-4x and higher.
Document Revision Level
Revision
MK-96RD626-P
Date
February 2007
Description
Preliminary Release
MK-96RD626-00
MK-96RD626-01
MP-96RD626-02
MP-96RD626-03
MP-96RD626-04
MK-96RD626-05
MK-96RD626-06
MK-96RD626-07
April 2007
Initial Release, supersedes and replaces MK-96RD626-P
Revision 1, supersedes and replaces MK-96RD626-00
Revision 2, supersedes and replaces MK-96RD626-01
Revision 3, supersedes and replaces MK-96RD626-02
Revision 4, supersedes and replaces MK-96RD626-03
Revision 5, supersedes and replaces MK-96RD626-04
Revision 6, supersedes and replaces MK-96RD626-05
Revision 7, supersedes and replaces MK-96RD626-06
May 2007
July 11, 2007
September 2007
September 2007
November 2007
January 2008
March 2008
x
Preface
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
Source Documents for this Revision
• MP-96RD626-06
• MK-96RD626-07d-RSD-V02
Changes in this Revision
• Added descriptions about the default setting of the cache mode in
disconnecting external volumes in
Document Organization
The following table provides an overview of the contents and organization of
this document. Click the chapter title in the left column to go to that chapter.
The first page of each chapter provides links to the sections within that
chapter.
Chapter / Appendix
Description
1
2
3
4
5
6
7
Provides an overview of Universal Volume Manager.
Explains the functions and applications of Universal
Volume Manager.
Describes the requirements and preparations for
Universal Volume Manager operations.
Explains the Universal Volume Manager windows.
Describes setting the external volume using Universal
Volume Manager.
Explains how to use spreadsheets for Universal Volume
Manager operations.
Describes remote command devices.
Preface
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
xi
Chapter / Appendix
Description
8
Provides troubleshooting information for Universal
Volume Manager and instructions for calling technical
support.
A
B
Describes configuration for external storage systems.
Describes the capacity list for each emulation type.
C
-
Describes how to adjust the volume capacity when
creating a pair.
Defines the acronyms and abbreviations used in this
document.
-
Lists the topics in this document in alphabetical order.
Referenced Documents
Hitachi Universal Storage Platform V/VM:
• Hitachi Command Control Interface (CCI) User and Reference Guide,
MK-90RD011
• Hitachi Copy-on-Write Snapshot User’s Guide, MK-96RD607
• Hitachi Dynamic Provisioning User's Guide, MK-96RD641
• Hitachi LUN Expansion User’s Guide, MK-96RD616
• Hitachi Performance Manager User’s Guide, MK-96RD617
• Hitachi ShadowImage User’s Guide, MK-96RD618
• Hitachi ShadowImage for IBM® z/OS® User’s Guide, MK-96RD619
• Hitachi Storage Navigator User’s Guide, MK-96RD621
• Hitachi Storage Navigator Messages, MK-96RD613
• Hitachi TrueCopy for IBM z/OS User’s Guide, MK-96RD623
• Hitachi TrueCopy User’s Guide, MK-96RD622
• Hitachi Universal Replicator for IBM z/OS User’s Guide, MK-96RD625
• Hitachi Universal Replicator User’s Guide, MK-96RD624
• Hitachi Virtual LVI/LUN and Volume Shredder User's Guide, MK-96RD630
• Hitachi Virtual Partition Manager User’s Guide, MK-96RD629
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Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
Document Conventions
The terms “Universal Storage Platform V” and “USP V” refer to all models of
the Hitachi Universal Storage Platform V, unless otherwise noted.
The terms “Universal Storage Platform VM” and “USP VM” refer to all models of
the Hitachi Universal Storage Platform VM, unless otherwise noted.
This document uses the following typographic conventions:
Convention
Description
Bold
Indicates text on a window, other than the window title, including menus,
menu options, buttons, fields, and labels. Example: Click OK.
Italic
Indicates a variable, which is a placeholder for actual text provided by the
user or system. Example: copy source-file target-file
Note: Angled brackets (< >) are also used to indicate variables.
screen/code
Indicates text that is displayed on screen or entered by the user.
Example: # pairdisplay -g oradb
< > angled brackets
Indicates a variable, which is a placeholder for actual text provided by the
user or system. Example: # pairdisplay -g <group>
Note: Italic font is also used to indicate variables.
[ ] square brackets
{ } braces
Indicates optional values. Example: [ a | b ] indicates that you can choose
a, b, or nothing.
Indicates required or expected values. Example: { a | b } indicates that
you must choose either a or b.
| vertical bar
Indicates that you have a choice between two or more options or
arguments. Examples:
[ a | b ] indicates that you can choose a, b, or nothing.
{ a | b } indicates that you must choose either a or b.
underline
Indicates the default value. Example: [ a | b ]
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Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
xiii
This document uses the following icons to draw attention to information:
Icon
Meaning
Description
Note
Tip
Calls attention to important and/or additional information.
Provides helpful information, guidelines, or suggestions for performing
tasks more effectively.
Caution
Warns the user of adverse conditions and/or consequences (e.g.,
disruptive operations).
WARNING
Warns the user of severe conditions and/or consequences (e.g.,
destructive operations).
Convention for Storage Capacity Values
Physical storage capacity values (e.g., disk drive capacity) are calculated
based on the following values:
1 KB = 1,000 bytes
1 MB = 1,0002 bytes
1 GB = 1,0003 bytes
1 TB = 1,0004 bytes
1 PB = 1,0005 bytes
Logical storage capacity values (e.g., logical device capacity) are calculated
based on the following values:
1 KB = 1,024 bytes
1 MB = 1,0242 bytes
1 GB = 1,0243 bytes
1 TB = 1,0244 bytes
1 PB = 1,0245 bytes
1 block = 512 bytes
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Preface
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Getting Help
If you need to call the Hitachi Data Systems Support Center, be sure to
provide as much information about the problem as possible, including:
• The circumstances surrounding the error or failure.
• The content of any error messages displayed on the host system(s).
• The content of any error messages displayed by Storage Navigator.
• The USP V/VM Storage Navigator configuration information obtained by
using the FD Dump Tool
• The service information messages (SIMs), including reference codes and
severity levels, displayed by Storage Navigator and/or logged at the host.
The Hitachi Data Systems customer support staff is available 24 hours/day,
seven days a week. If you need technical support, please call:
• United States: (800) 446-0744
• Outside the United States: (858) 547-4526
Comments
Please send us your comments on this document. Make sure to include the
document title, number, and revision. Please refer to specific section(s) and
paragraph(s) whenever possible.
• Fax: 858-695-1186
• Mail:
Technical Writing, M/S 35-10
Hitachi Data Systems
10277 Scripps Ranch Blvd.
San Diego, CA 92131
Thank you! (All comments become the property of Hitachi Data Systems
Corporation.)
Preface
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Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
Universal Volume Manager
Universal Volume Manager software 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 a USP V/VM as
if they were all in one storage system and provides common management
tools and software. The shared storage pool 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 Hitachi
Volume Migration software, Universal Volume Manager provides an automated
data lifecycle management solution, across multiple tiers of storage.
The key features and benefits of Universal Volume Manager include:
• Universal Volume Manager virtualizes external storage attached to the
USP V/VM storage system
• Enables deployment of multi-tiered storage
• Integrates heterogeneous systems
• Creates pools of storage independent of physical location
• Creates new opportunities based on enhanced capability of existing
business continuity software and management tools to external storage
devices
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Overview of Universal Volume Manager
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
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 which you use.
If you install Universal Volume Manager, you can perform the following copy
operations in the same way as when you copy data between volumes in the
USP V/VM storage system.
• To copy data between a volume in the USP V/VM storage system and a
volume in an external storage system.
• To copy data between a volume in an external storage system and a
volume in another external storage system.
Without UVM, different copy operations are required.
Storage
Navigator
Computer
USP V/VM Storage System
External Storage System
UVM allows you to perform all copy operations in the same way.
Storage
Navigator
Computer
USP V/VM Storage System
External Storage System
Legend
Volumes installed in the storage system
：
：
Virtual volumes that do not have physical memory space
Copy operation
：
：
Lines showing the concept of virtualization
Figure 1-1
Unifying Copy Operations between Different Storage
Systems
Overview of Universal Volume Manager
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Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
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 Universal Volume Manager, a system administrator only needs to
configure the connection from a host to the USP V/VM 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 USP V/VM storage system.
Without UVM, a host needs to connect all storage systems.
Host
USP V/VM
Storage System
External Storage System
UVM allows you to unify the connections from a host
to different storage systems.
Host
USP V/VM
Storage System
External Storage System
Legend
Volumes installed in the storage system
：
：
Virtual volumes that do not have physical memory space
Access
：
：
Lines showing the concept of virtualization
Figure 1-2
Unifying Connections from a Host to Different Storage
Systems
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Overview of Universal Volume Manager
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
Connecting External Storage System
Universal Volume Manager enables you to use Hitachi storage systems,
original equipment manufacturer (OEM) 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
USP V/VM storage system. In this user's guide, the original USP V/VM 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
local storage system. “Mapping” means assigning the management numbers to
the external volumes. This management numbers are required for
manipulating external volumes from local storage system. By assigning the
management numbers to the external volumes, the system administrator will
be able to manipulate not only internal volumes of local storage system but
also external volumes using Storage Navigator. The management numbers
consist of "external volume group number - sequential number" (Example: E2-
1, E50-3).
Figure 2-1 shows the idea of connection between a local storage system and
an external storage system which are connected by the Universal Volume
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, which is used
mapped as internal volumes.
Notes:
• 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 (e.g., copy function) of the
external storage system. Once you have mapped an external volume as an
internal volume, you have to access the mapped external volume only from
the local storage system side.
• From the host, you can access the external storage system volumes that
have not been mapped as the internal volumes. There is no restriction.
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About Universal Volume Manager Operations
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
Fibre-Channel
Interface
Connection
Host 1
Host 2
Switch
Local Storage System
External Storage System
Target
Port
Target
Port
External
Port
External
Port
Port
WWN 0
Port
WWN 1
Internal
Volumes
Mapping
Legend
Volumes installed in the storage system
：
Virtual volumes that do not have physical memory space
：
：
Lines showing the concept of mapping
Figure 2-1
Concept of Universal Volume Manager
By mapping an external volume as an internal volume using Universal Volume
Manager as shown in Figure 2-1, it becomes possible to operate the external
volume using Storage Navigator as if it is a volume in the local storage
system.
About Universal Volume Manager Operations
2-3
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
Universal Volume Manager Components
System using Universal Volume Manager usually contains the following
components:
– Local storage system (USP V/VM storage system)
– External storage system
– Storage Navigator computer
– Universal Volume Manager
– 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
The following figure illustrates the relations of the Universal Volume Manager
components.
Host
External Storage System
Local Storage System
Target
Port
A
B
Set or View
C
Create
LDEVs
Mapping
External
Volume
Storage
SVP
Port
WWN
External
Port
Navigator
Computer
LDEVs in the
External Volume
(Web Server)
Cross-subsystem Path
Mapping Path
Legend
Volumes installed in the storage system
：
：
：
Virtual volumes that do not have physical memory space
Lines showing the concept of mapping
Figure 2-2
Universal Volume Manager Components
This section describes the details of the storage systems, cross-subsystem
paths, volumes and mapping paths as shown in the above figure.
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Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
Storage Systems and Cross-subsystem Paths
Before using Universal Volume Manager, connect the fibre channel port of the
local storage system to the external storage system port with the fibre cable.
The route between ports, which is connected with the cable, is called the
"cross-subsystem path".
The fibre channel port of the local storage system is set to connect to the 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 so that it is an
external port, which can be connected to an external storage system. The
external storage system port can be a target port, which can be connected to
a host.
To manipulate Universal Volume Manager, you need to install Universal
Volume Manager by using the license key. Use your Storage Navigator
computer to access the local storage system via SVP (web server) and perform
the Universal Volume Manager operations.
Volumes and Mapping Paths
Volumes in the external storage system (see C in Figure 2-2) are called
"external volumes". Mapping is necessary to manipulate an external volume
from the local storage system. The system administrator maps an external
volume as an internal volume (see B in Figure 2-2) in the 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.
Note: When external volumes in external storage systems are mapped as
internal volumes in your USP V/VM storage systems, the external volumes can
be accessed and copied by hosts connecting to your USP V/VM storage
systems, but not by hosts connecting to the external storage systems.
This document sometimes uses the term "an external volume" or "a mapped
external volume" to mention an internal volume where an external volume is
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.
About Universal Volume Manager Operations
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Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
To use the external volumes, which you mapped as an internal volume (see B
administrator needs to create LDEVs in the external volume (see A in Figure
or use VLL function to an 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 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 Virtual LVI/LUN and Volume
Shredder User's Guide.
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Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
Universal Volume Manager Operations
Universal Volume Manager enables you to execute the following operations.
• Preparing to use external volumes
You can map external volumes, set port attributes, and set cross-
subsystem paths.
• Preparing to manipulate the power supply of the storage systems
You must follow specific procedures if you want 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 Universal
Volume Manager.
• 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 the Universal Volume Manager to make settings
on the path.
• Referring to the status of external volumes
You can refer to the status and the configuration of external volumes.
• Stopping the use of external volumes
You can cancel mapping of external volumes.
• Mapping external volumes by using spreadsheets
Universal Volume Manager supports the Configuration File Loader
spreadsheets. Spreadsheets allow you to configure the mapping of multiple
external volumes at one time, which is efficient when mapping a large
number of volumes.
• Setting the remote command device
By using the remote command device, you can manipulate volumes in the
external storage system from the Command Control Interface on host
computers.
About Universal Volume Manager Operations
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Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
Configuring Universal Volume Manager
Before configuring the Universal Volume Manager settings, you need to answer
the following:
• Which ports can be connected to external storage systems
• Which external storage system and volumes should be mapped as the
internal volumes
• How to configure external volume groups
• What external volume attributes to be configured
• How to configure cross-subsystem paths
• How to make volume usable from the local storage system
Choosing External Port
The port used for Universal Volume Manager 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 Storage Navigator computer. The external storage system
cannot be connected to the ports other than the external port.
In order to set the port attribute to external, the LU paths set to the port must
be released. The attribute of the port where the 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 Universal Volume
Manager operations.
Note: The ports whose attributes are set for remote copy software (e.g., RCU
target, initiator) or other features cannot be used as external ports for
Universal Volume Manager. In addition, change the port attribute to external if
the port attribute is set to other than external.
Choosing and Mapping External Volumes
When you connect 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 (internal volumes). Identify the
volumes in each external storage system that should be mapped as internal
volumes.
• You cannot access the data that is stored in an external volume beyond the
maximum available capacity.
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About Universal Volume Manager Operations
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
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.
• 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 which requires 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.
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 Universal Volume Manager, 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.
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 the
Universal Volume Manager.
The attributes of the external volume are as follows:
• Emulation type
Select an emulation type for the mapped external volume from the drop-
down 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, if you want to migrate the existing data in
the external volume to the local storage system volume, you have to 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 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).
About Universal Volume Manager Operations
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Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
• 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 set to Enable. All I/O to and from the
local storage system (either Enable or Disable) always uses cache. Write
operations are always backed up in duplex cache.
– 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.
– If you select 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.
If you perform the Cache Residency Manager operation on the external
volume, which the Cache Mode is set to Disable, the bind mode of
Cache Residency Manager cannot be specified. For the Cache Residency
Manager operation, see the Cache Residency Manager User’s Guide.
Note: When you set the cache mode, note the following:
• Data that is not written by the host (for example, data written by
ShadowImage) is asynchronously destaged to the external storage
system regardless of the Cache Mode setting.
• 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.
• 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.
– 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.
– 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 Virtual Partition Manager,
configure a cache logical partition (CLPR) to access the mapped volume.
See the Virtual Partition Manager User’s Guide for the 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, it is recommended 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.
A group of redundant cross-subsystem paths is called a "path group". In a
path group, the cross-subsystem path that has the highest priority is called
the primary path. The cross-subsystem paths other than priority path are
called alternate paths.
• Setting of the path groups
A path group is automatically set when you map the external volume. You
cannot set a new path group by itself.
• Setting of cross-subsystem paths
Use fibre 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 the different cluster port of the local storage system.
If multiple paths are established between the two storage systems, the
starting points of the paths (i.e., external ports of the local storage system)
and the ending points (i.e., 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.
• 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.
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.
• 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 Universal
Volume Manager, 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.
Note: When the primary path cannot be used for three minutes continuously,
the path is switched to the alternate path.
Examples of Alternate Paths
Figure 2-3 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 the local storage system
for the alternate path. Therefore, “CL1” port and “CL2” port are specified.
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External Storage System
Local Storage System
Port
LUN
5
External
Path 1
Path 2
WWN A
CL1-A
Internal
Volume
External
Volume
Port
LUN
5
External
CL2-A
WWN B
Legend
Internal volume where external volume is mapped
：
Figure 2-3
Example of Alternate Path Setting
Figure 2-4 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.
External Storage System
Local Storage System
Switch
External
Port
LUN
5
Path 1
Path 2
CL1-A
WWN A
Internal
Volume
External
Volume
Port
LUN
5
External
CL2-A
Legend
Internal volume where the external volume is mapped
：
Figure 2-4
Example of Available Alternate Path Setting
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external volume. 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
Universal Volume Manager.
External Storage System
Local Storage System
Switch
Port
LUN
5
Path 1
Path 2
WWN A
External
CL1-A
Internal
Volume
External
Volume
Port
LUN
5
WWN B
Legend
Internal volume where the external volume is mapped
：
Figure 2-5
Example of Unavailable Alternate Path Setting
Examples of Switching I/O Execution Paths to Alternate Paths
This section describes the case examples of the performance when the I/O
execution path is switched to the alternate path for each path mode as
follows:
• When the path mode is Multi mode
Figure 2-6 shows an example of the case 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.
Note: As you restore the error path, the use of the restored path is
automatically resumed.
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Local Storage System
External
External Storage System
Port
Path
Port A
WWN A
Priority 1
External
Port B
Port
Path
Internal
Volume
External
Volume
WWN B
Priority 2
External
Port C
Port
Path
WWN C
Priority 3
Local Storage System
External
External Storage System
Port
Path
Error
Port A
WWN A
Priority 1
External
Port B
Port
Path
Internal
Volume
External
Volume
WWN B
Priority 2
External
Port C
Port
Path
WWN C
Priority 3
Legend
: Internal volume where the external volume is mapped
: I/O
Figure 2-6
When the Path Mode is Multi Mode
• When the path mode is Single mode
Figure 2-7 shows an example of the case 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.
Note: 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.
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Local Storage System
External
External Storage System
Port
Path
Port A
WWN A
Priority 1
External
Port B
Port
Path
Internal
Volume
External
Volume
WWN B
Priority 2
External
Port C
Port
Path
WWN C
Priority 3
Local Storage System
External
External Storage System
Port
Path
Error
Port A
WWN A
Priority 1
External
Port B
Port
Path
Internal
Volume
External
Volume
WWN B
Priority 2
External
Port C
Port
Path
WWN C
Priority 3
Legend
: Internal volume where the external volume is mapped
: I/O
Figure 2-7
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
Figure 2-8 shows an example of the case when the path mode is Single
mode, and there are the alternate paths in the Normal status and the
path mode is Single mode. In the case of Figure 2-9, there are alternate
paths in the Standby status only.
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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 in
the Normal status. If there is no path in the Normal status other than the
path that is being used for I/Os, the status of the path in the Standby
status is automatically changed to Normal, and the I/O execution path is
switched to that path.
Note: Only when the external storage system is EVA storage system, as
you restore the path with the highest priority, 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 has been changed to Normal when the
error has occurred is changed back to Standby.
Local Storage System
External
External Storage System
Port
Path
Priority 1
Status: Normal
Port A
WWN A
External
Port B
Port
Path
Priority 2
Status: Standby
Internal
Volume
External
WWN B
Volume
Path
Priority 3
Status: Normal
External
Port C
Port
WWN C
Local Storage System
External
External Storage System
Path
Priority 1
Status: Blockade
Port
Error
Port A
WWN A
Path
Priority 2
Status: Standby
External
Port B
Port
Internal
Volume
External
WWN B
Volume
Path
Priority 3
Status: Normal
External
Port C
Port
WWN C
Legend
: Internal volume where the external volume is mapped
: I/O
Figure 2-8
Single Mode with Alternate Paths in Normal and Standby
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2-17
Local Storage System
External
External Storage System
Port
Path
Priority 1
Status: Normal
Port A
WWN A
Path
Priority 2
Status: Standby
External
Port B
Port
Internal
Volume
External
WWN B
Volume
Path
Priority 3
Status:Standby
External
Port C
Port
WWN C
Local Storage System
External
External Storage System
Path
Priority 1
Status: Blockade
Port
Error
Port A
WWN A
Path
Priority 2
Status: Normal
External
Port B
Port
Internal
Volume
External
WWN B
Volume
Path
Priority 3
Status: Standby
External
Port C
Port
WWN C
Legend
: Internal volume where the external volume is mapped
: I/O
Figure 2-9
Single Mode with Alternate Paths in Standby only
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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
USP V/VM storage system as an external volume. The USP V/VM storage
system does not recognize these volumes because of the fibre channel.
To use external volumes as mainframe volumes, there are two ways:
• Zero-format external volumes on the external storage system side, map
the external volumes to the internal volumes using Universal Volume
Manager 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.
• Map the external volumes to the internal volumes using Universal Volume
Manager 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 (e.g., 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 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.
Note: 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
OS, format the mapped volume from the local storage system (USP V/VM)
side.
For the procedure of the volume formatting operation and the Write to
Control Blocks operation, see the Virtual LVI/LUN and Volume Shredder
User's Guide.
Connecting Open Systems Volumes
Open systems volumes in external storage systems connect to and are
recognized by the USP V/VM storage system as open systems volumes,
without requiring reformatting. Reformatting is not required because the
connection between the USP V/VM 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 procedure of the volume
formatting operation, see the Virtual LVI/LUN and Volume Shredder User's
Guide.
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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
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.
One policy is prepared in advance. The user can change the default value of
the policy.
Difference between Automatic Mapping and Manual Mapping
When you map the external volume, you need to configure:
• cross-subsystem paths
• external volume parameters
• LDEV number to LDEVs in the external volume
• SSID (storage subsystem ID)
When you perform automatic mapping, users configure only cross-subsystem
paths and all the other settings above are automatically made by Universal
Volume Manager according to the mapping policy. When you perform manual
mapping, users configure all the settings.
Automatic mapping maps all the external volume found by the Volume
Discovery to the internal volumes. Automatic mapping requires less settings
but you are not allowed to set different parameters to each external volume or
to specify LDEV number to each LDEV. You can set the parameters such as
emulation type to mapping policy in advance.
Port Discovery and Volume Discovery
Port Discovery and Volume Discovery are the processes to find external
volumes, and will be executed when you map external volumes or when you
add cross-subsystem paths.
Port Discovery is a process to search for and get information about target
ports of the connected external storage system from an external port of the
local storage system. The latest information about the external storage system
can be viewed in a dialog box of the Universal Volume Manager when you
execute Port Discovery.
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You can set in advance the mapping policy on whether to execute the 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.
Volume Discovery is a process to search for and get information about external
volumes from the target ports of the external storage system. Volume
Discovery is automatically executed after the Port Discovery process.
Note: When a port in an external storage system is connected to USP V/VM
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.
• Delete the management LU from the port connected to USP V/VM.
• 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 USP V/VM.
• Use the security function and configure the access attribute of the
management LU to prohibit read and write operations.
If none of the above operations are performed, an external storage system
that has a management LU might not be recognized by the local storage
system.
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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.
• Storing the new data in the mapped external volume
• Using the existing data in the mapped external volume
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 Universal Volume Manager.
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 on to
the step 2. If you select the emulation type for the mainframe system
(such as 3390-3), go on to the step 3.
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, see
the Virtual LVI/LUN and Volume Shredder User's Guide.
Go on to the 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.
Note: 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 Virtual LVI/LUN and
Volume Shredder User's Guide.
Go on to the 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.
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Host
Set the Target port and set the LU path
from the Target port for the host I/O.
Local
External
Storage System
Storage System
Target
Port
Mapping
Legend
: Internal volume where the external volume is mapped
: External volume
Figure 2-10
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 Universal Volume
Manager.
When you map the external volume, set the attributes of the mapped
volume as follows:
– Emulation type: OPEN-V
Note: You have to set the emulation type to 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.
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Notes:
• Make sure that you do not access the external volume, which has
been mapped as a 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 (e.g., 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.
• From the host, you can access the external storage system volumes
that have not been mapped as the internal volumes. There is no
restriction.
Host
Set the Target port and set the LU path
from the Target port for the host I/O.
Local
Storage System
External
Storage System
Target
Port
Mapping
Set the emulation type to OPEN-V.
Legend
: Internal volume where the external volume is mapped
: External volume
Figure 2-11
Using the Existing Data in the Mapped External Volume
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Interoperability with other Products and Functions
You can use the USP V/VM program products to utilize and to manage the
external volumes you have set using Universal Volume Manager. 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 the 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 to set the LU path definition for the external volume (add, delete,
or change LU paths).
• You can to 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
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.
Virtual LVI/LUN
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 formatting operation procedure and the Write to Control Blocks
operation procedure, see the Virtual LVI/LUN and Volume Shredder User’s
Guide.
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• If you create LDEVs in an external volume using the VLL function, the
cache mode of the created LDEVs become the same as those 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 Manager
Consider the following for Performance Manager:
• Performance Monitor can be used to display the monitoring information
about the external volumes.
• Mapped volumes can be used for Volume Migration. For a configuration
TrueCopy and TrueCopy for IBM z/OS
Mapped volumes can be used for TrueCopy and for TrueCopy for IBM z/OS. For
Universal Replicator and Universal Replicator for IBM z/OS
Mapped volumes can be used for Universal Replicator and Universal Replicator
for IBM z/OS. For a configuration example of Universal Replicator, see
ShadowImage and ShadowImage for IBM z/OS
Mapped volumes can be used for ShadowImage and ShadowImage for IBM
Copy-on-Write Snapshot
Mapped volumes can be used for Copy-on-Write Snapshot. Consider the
following for Copy-on-Write 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.
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For a configuration example of Copy-on-Write Snapshot, see Copy-on-Write
Dynamic Provisioning
Mapped volumes can be used for Dynamic Provisioning. Consider the following
for Dynamic 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.
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Examples of Using External Volumes with Other Products
For the following USP V/VM program products, the examples of using external
volumes are described in the following subsections:
Volume Migration Operations
Figure 2-12 shows the use of an external volume for the Volume Migration
operation. The 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
Volume Migration. For detailed information on the Volume Migration operation,
see the Performance Manager User’s Guide.
The procedure for the operation is as follows:
1. Use Universal Volume Manager to map a volume in the external storage
system as an internal volume of the local storage system.
as follows:
Emulation type: OPEN-V
Note: To migrate the existing data in the mapped external volume to the
local storage system volume using Volume Migration, 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.
Caution: To copy the existing data in the mapped external volume using
the copy program products of Storage Navigator such as TrueCopy and
ShadowImage, 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 LUSE function and VLL function.
For the LUSE function, see the LUN Expansion User’s Guide. For the VLL
function, see the Virtual LVI/LUN and Volume Shredder User's Guide.
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Note: 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 Volume Migration.
Local Storage System
External Storage System
Source
Volume
Mapping
Target
Volume
Migrating data in the mapped external volume (source
volume) to the internal volume (target volume) manually
using Volume Migration.
Legend
: Internal volume
: Internal volume where the external volume is mapped
: External volume
: Data migration direction
Figure 2-12
Example of the Volume Migration Operation
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TrueCopy Operations
Figure 2-13 shows the use of an external volume for the TrueCopy operation.
The mapped external volume is set as the S-VOL of the TrueCopy 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 TrueCopy pair. For details on TrueCopy,
see the TrueCopy User's Guide.
The procedure for the operation is as follows:
1. Use Universal Volume Manager 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 TrueCopy 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
on to the step 2. If you select the emulation type for the mainframe system
(such as 3390-3), go on to the step 3.
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 Virtual LVI/LUN
and Volume Shredder User's Guide.
Go on to the 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 procedure and the Write to Control
Blocks operation procedure, see the Virtual LVI/LUN and Volume Shredder
User's Guide.
Go on to the step 4.
4. Set the P-VOL and S-VOL of the TrueCopy pair.
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Copying data in the P-VOL of the local storage system that is connected
as MCU to the S-VOL of the local storage system that is set as RCU.
The S-VOL is a mapped external volume.
RCU Target
Port
Local
Storage
System
External
Storage System
Local
Storage
System
Initiator
Port
RCU
（
）
MCU
（
）
Mapping
TrueCopy
S-VOL
TrueCopy
P-VOL
Legend
: Internal volume
: Internal volume where the external volume is mapped
: External volume
: Data copy direction
Figure 2-13
Example of the TrueCopy Operation
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Universal Replicator Operations
Figure 2-14 shows the use of an external volume for the Universal Replicator
operation. The mapped external volume is set as the S-VOL of the Universal
Replicator pair, and the volume in the local storage system that is connected
as the MCU is set as the P-VOL of the Universal Replicator pair. For details on
Universal Replicator, see the Universal Replicator User's Guide.
The procedure for the operation is as follows:
1. Use Universal Volume Manager 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 Universal Replicator 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
on to the step 2. If you select the emulation type for the mainframe system
(such as 3390-3), go on to the step 3.
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 Virtual LVI/LUN
and Volume Shredder User's Guide.
Go on to the 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 procedure and the Write to Control
Blocks operation procedure, see the Virtual LVI/LUN and Volume Shredder
User's Guide.
Go on to the step 4.
4. Set the P-VOL and S-VOL of the Universal Replicator pair.
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Copying data in the P-VOL of the local storage system that is connected
as MCU to the S-VOL of the local storage system that is set as RCU.
The S-VOL is a mapped external volume.
RCU Target
Port
Local
Storage
System
External
Storage System
Local
Storage
System
Initiator
Port
RCU
（
）
MCU
（
）
Mapping
Universal
Replicator
S-VOL
Universal
Replicator
P-VOL
Legend
: Internal volume
: Internal volume where the external volume is mapped
: External volume
: Data copy direction
Figure 2-14
Example of the Universal Replicator Operation
About Universal Volume Manager Operations
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Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
ShadowImage Operations
Figure 2-15 shows the use of an external volume for the ShadowImage
operation. The mapped external volume is set as the S-VOL of the
ShadowImage pair, and the local storage system internal volume is set as the
P-VOL of the ShadowImage pair. For details on ShadowImage, see the
ShadowImage User’s Guide.
The procedure for the operation is as follows:
1. Use Universal Volume Manager 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
on to the step 2. If you select the emulation type for the mainframe system
(such as 3390-3), go on to the step 3.
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 Virtual LVI/LUN
and Volume Shredder User's Guide.
Go on to the 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 procedure and the Write to Control
Blocks operation procedure, see the Virtual LVI/LUN and Volume Shredder
User's Guide.
Go on to the step 4.
4. Set the P-VOL and S-VOL of the ShadowImage pair.
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Local Storage System
External Storage System
Mapping
ShadowImage
P-VOL
ShadowImage
S-VOL
Copying data in the P-VOL that is an internal volume of the
local storage system to the S-VOL that is a mapped external
volume.
Legend
: Internal volume
: Internal volume where the external volume is mapped
: External volume
: Data copy direction
Figure 2-15
Example of the ShadowImage Operation
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Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
Copy-on-Write Snapshot Operations
Figure 2-16 shows the use of an external volume for the Copy-on-Write
Snapshot operation. The mapped external volume is set as a pool-VOL of the
Copy-on-Write Snapshot pair. For details on Copy-on-Write Snapshot, see the
Copy-on-Write Snapshot User’s Guide.
The procedure for the operation is as follows:
1. Use Universal Volume Manager 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 Copy-on-Write Snapshot.
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 Virtual
LVI/LUN and Volume Shredder User's 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 Copy-on-Write Snapshot pair with
specifying the pool you have created at the step 3.
As you create a Copy-on-Write Snapshot pair,
the data of the internal volume in the local storage system that is set as a
P-VOL is copied to the external volume that is set as a pool-VOL
Local Storage System
External Storage System
Mapping
Copy-on-Write
Snapshot
P-VOL
Copy-on-Write
Snapshot
S-VOL
Copy-on-Write
Snapshot
Pool-VOL
Creating a Copy-on-Write Snapshot pair.
: Internal volume
Legend
: Virtual volume (S-VOL of the Copy-on-Write Snapshot pair)
: Internal volume where the external volume is mapped
: External volume
: Data copy direction
Figure 2-16
Example of the Copy-on-Write Snapshot Operation
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System Requirements
The system requirements for Universal Volume Manager are:
• USP V/VM storage system (First storage system)
All the necessary hardware and microcode required for Universal Volume
Manager 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 operated as an external
storage system. The kinds of storage systems that can be used as an
external storage system include the Lightning 9900V series storage system,
the Thunder 9500V series storage system, the Lightning 9900C series
storage system, and other similar storage systems.
• USP V/VM Storage Navigator computer (user-supplied computer)
See the Storage Navigator User’s Guide for instructions on installing and
using the Storage Navigator computer.
Note: You must operate the Storage Navigator computer in Modify mode
to perform Universal Volume Manager operations. Users in View mode can
only view Universal Volume Manager information.
• License key for Universal Volume Manager program product
You need a license key to install Universal Volume Manager.
Storage Systems Supported as External Storage Systems
Supported storage systems that can be connected as the external storage
system are shown in the following table. The table includes information on how
those storage systems are referenced in this document and in the Universal
Volume Manager windows.
Table 3-1
Storage Systems Available as External Storage Systems
Storage System
Note
Universal Storage
Platform V
Displayed by Universal Volume Manager as “USP V”.
Path Mode of the cross-subsystem paths will be Multi.
Universal Storage
Platform VM
Displayed by Universal Volume Manager as “USP VM”.
Path Mode of the cross-subsystem paths will be Multi.
TagmaStore Universal
Storage Platform
Displayed by Universal Volume Manager “USP”.
Path Mode of the cross-subsystem paths will be Multi.
TagmaStore Network
Storage Controller
Displayed by Universal Volume Manager as “NSC”.
Path Mode of the cross-subsystem paths will be Multi.
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Storage System
Note
TagmaStore Adaptable
Modular Storage
Displayed by Universal Volume Manager as “AMS”.
Path Mode of the cross-subsystem paths will be Single.
TagmaStore Workgroup
Modular Storage
Displayed by Universal Volume Manager as “WMS”.
Path Mode of the cross-subsystem paths will be Single.
Lightning 9900V series
Thunder 9500V series
Lightning 9900 series
Displayed by Universal Volume Manager as “9970V” and “9980V”.
Path Mode of the cross-subsystem paths will be Multi.
Displayed by Universal Volume Manager as “9500V”.
Path Mode of the cross-subsystem paths will be Single.
Lightning 9960 is displayed by Universal Volume Manager as “0400”.
Lightning 9910 is displayed by Universal Volume Manager as “0401”.
Path Mode of the cross-subsystem paths will be Multi.
A/H-6593
Displayed by Universal Volume Manager as “300”.
Path Mode of the cross-subsystem paths will be Multi.
SANRISE Universal Storage
Platform
Displayed by Universal Volume Manager as “USP”.
Path Mode of the cross-subsystem paths will be Multi.
SANRISE Network Storage
Controller
Displayed by Universal Volume Manager as “NSC”.
Path Mode of the cross-subsystem paths will be Multi.
SANRISE Adaptable Modular Displayed by Universal Volume Manager as “AMS”.
Storage
Path Mode of the cross-subsystem paths will be Single.
SANRISE Workgroup
Modular Storage
Displayed by Universal Volume Manager as “WMS”.
Path Mode of the cross-subsystem paths will be Single.
SANRISE 9900V series
SANRISE 9500V series
SANRISE 2000 series
Displayed by Universal Volume Manager as “9970V” and “9980V”.
Path Mode of the cross-subsystem paths will be Multi.
Displayed by Universal Volume Manager as “9500V”.
Path Mode of the cross-subsystem paths will be Single.
SANRISE 2800 is displayed by Universal Volume Manager as “0400”.
SANRISE 2200 is displayed by Universal Volume Manager as “0401”.
Path Mode of the cross-subsystem paths will be Multi.
H24000
Displayed by Universal Volume Manager as “24000”.
Path Mode of the cross-subsystem paths will be Multi.
H20000
Displayed by Universal Volume Manager as “20000”.
Path Mode of the cross-subsystem paths will be Multi.
SANRISE H12000
SANRISE H10000
SANRISE H1024/H128
SANRISE H512/H48
Displayed by Universal Volume Manager as “12000”.
Path Mode of the cross-subsystem paths will be Multi.
Displayed by Universal Volume Manager as “10000”.
Path Mode of the cross-subsystem paths will be Multi.
Displayed by Universal Volume Manager as “1024” and “128”.
Path Mode of the cross-subsystem paths will be Multi.
Displayed by Universal Volume Manager as “512” and “48”.
Path Mode of the cross-subsystem paths will be Multi.
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Storage System
SANRISE H256
Note
Displayed by Universal Volume Manager as “256”.
Path Mode of the cross-subsystem paths will be Multi.
XP24000
XP20000
XP12000
XP10000
XP1024/XP128
XP512/XP48
XP256
Displayed by Universal Volume Manager as “24000”.
Path Mode of the cross-subsystem paths will be Multi.
Displayed by Universal Volume Manager as “20000”.
Path Mode of the cross-subsystem paths will be Multi.
Displayed by Universal Volume Manager as “12000”.
Path Mode of the cross-subsystem paths will be Multi.
Displayed by Universal Volume Manager as “10000”.
Path Mode of the cross-subsystem paths will be Multi.
Displayed by Universal Volume Manager as “1024” and “128”.
Path Mode of the cross-subsystem paths will be Multi.
Displayed by Universal Volume Manager as “512” and “48”.
Path Mode of the cross-subsystem paths will be Multi.
Displayed by Universal Volume Manager as “256”.
Path Mode of the cross-subsystem paths will be Multi.
SVS200
Displayed by Universal Volume Manager as “SVS200”.
Path Mode of the cross-subsystem paths will be Multi.
HP StorageWorks Enterprise Displayed by Universal Volume Manager as “EVA”.
Virtual Array
3000/4000/5000/6000/800
0
Path Mode of the cross-subsystem paths will be Single.
IBM storage system
EMC storage system
Fujitsu storage system
NEC storage system
For the type of the supported storage system, call the Support Center.
For the type of the supported storage system, call the Support Center.
For the type of the supported storage system, call the Support Center.
For the type of the supported storage system, call the Support Center.
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Universal Volume Manager Requirements
The following table describes the Universal Volume Manager requirements.
Table 3-2
Universal Volume Manager 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 63,232 volumes can be connected..
which can be connected
4,096 volumes can be connected per port.
Note: If you use Copy-on-Write Snapshot or Dynamic
Provisioning, the number of external volumes which 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 (8,589,934,592 blocks)
If you specify an external volume which 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
Maximum number of external volumes 4,096
which can be registered in one
external volume group
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3-5
Guidelines for Universal Volume Manager Operations
This section provides guidelines for the Universal Volume Manager 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 .
• 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 copy function or some other
functions of the external storage system.
Hosts can access the external storage system volumes that have not been
mapped as the internal volumes. There is no restriction.
• Do not map multiplatform volumes of external storage systems as internal
volumes.
• When an external storage system that has an ownership is connected to
USP V/VM 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.
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Recommended Applications according to the HDD Type
mapped external volume according to the HDD type of the external volume.
Table 3-3
When the Emulation Type of the External Volume is for OPEN
Application
HDD Type
FC
SATA
Database
Not Recommended
Not Recommended
Online Transaction Processing
(OLTP)
File Operation from Host
(Both of Read and Write)
OK
OK
Not Recommended
OK
File Operation from Host
(Mainly Read)
Backup
Archive
OK
OK
Recommended
Recommended
Table 3-4
When the Emulation Type of the External Volume is for
Mainframe
Application
HDD Type
FC
SATA
Database
Not Recommended
Not Recommended
Not Recommended
Online Transaction Processing
(OLTP)
System Volumes
Not Recommended
(Journal, Check points)
Operation from TPF
Not Supported
OK
Not Supported
File Operation from Host
(Both of Read and Write)
Not Recommended
File Operation from Host
(Mainly Read)
OK
OK
Backup
Archive
OK
OK
Recommended
Recommended
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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.
External Volume
LDEV
LU
・The capacity is 4 TB or less.
・OPEN-V emulation type
Figure 3-1
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.
• When an external volume is mapped as internal volume(s) with the setting
of the emulation type other than OPEN-V, the number of volumes and the
volume capacity of the mapped external volume(s) 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 smaller than the
actual external volume capacity. The available capacity decreases as much
capacity as the data management information area.
Figure 3-2 shows an example of the case that the original capacity of the
external volume is bigger than the basic capacity of the emulation type.
The emulation type is OPEN-3. Figure 3-3 shows an example of the case
that the original capacity of the external volume is smaller than the basic
capacity of the emulation type.
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External Volume
VDEV
LDEV
LU
OPEN-3
6 GB
Area provided to store data
management information
Free Space
(The area less than the basic
capacity of emulation type
remains as free space)
Figure 3-2
When the External Volume Capacity is Bigger than the
Basic Capacity of Specified Emulation Type (Example of
the OPEN-3 emulation type)
External Volume
VDEV
LDEV
LU
2 GB
Area provided to store data
management information
Figure 3-3
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 OS
(e.g., 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 become timeout. When the
commands become timeout, the SIM (21D2xx) is reported.
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• When you use the mapped external volume from the mainframe OS, 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.
• 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 volumes to create a LUSE
volume. The LDEVs in the same external volume can only be used to set
the LUSE volumes.
• When you combine LDEVs of multiple external volumes to create a LUSE
volume, you need to consider:
– If a LUSE volume consists of multiple external volumes and one
external volume has lower performance than the other volumes, the
lower performance of the volume affects the performance of the LUSE
volume.
– When an external volume which is a component 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 which are components of the LUSE volume.
• The mapped volumes that have different cache mode settings cannot be
used to create one LUSE volume.
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VMA of Data Retention Utility
• If you map an external volume to which the volume management area
(VMA) of Data Retention Utility is set, you need to configure system
options before performing the port discovery or volume discovery operation
to validate the VMA information. Please call the Hitachi Data Systems
Support Center to find out about how to configure system options (see
• If you have previously mapped a TagmaStore USP volume and set the VMA
of Data Retention Utility in that volume, the VMA setting is inherited when
you map the volume again.
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 which require the re-
mapping of external volume are as follows:
– Changing WWNs of target ports which 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 Universal Volume Manager 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 TrueCopy pairs).
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 become MIH error.
• If the host connected to the local storage system issues too many I/Os to
be processed by the external storage system, the commands from the host
may possibly be timed out.
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When the amount of I/Os from the host to the external volume exceeds the
maximum amount of I/Os that the external storage system can accept, the
commands from the host to the local storage system may possibly be
timed out. As you configure the system using the external volumes,
consider the capability for the I/O amount of the external storage system.
• When you execute the commands of the USP V/VM program products to
the mapped external volume and thus too many I/Os are issued to be
processed by the external storage system, the commands may possibly be
timed out and an error may occur.
When the amount of I/Os from the program products to the external
volume exceeds the maximum amount of I/Os that the external storage
system can accept, the commands from the program products may
possibly be timed out and an error may occur. As you configure the system
using the external volumes, consider the capability for the I/O amount of
the external storage system.
• 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 may possibly be timed out when the power supply is off or when
an error occurs for 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 Storage Navigator
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).
Thunder 9500V Series Guidelines
When you use the Thunder 9500V series 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.
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Installing and Uninstalling Universal Volume Manager
This section explains how to install and uninstall Universal Volume Manager.
Installing Universal Volume Manager
You need to install Universal Volume Manager using the license key to perform
the Universal Volume Manager operations on the Storage Navigator computer.
To install the Universal Volume Manager license key:
1. Start the Storage Navigator Java applet for the desired storage system.
2. Enable the Universal Volume Manager options on the Storage Navigator
computer and on each storage system.
For detailed instructions, see the Storage Navigator User’s Guide.
Uninstalling Universal Volume Manager
To uninstall Universal Volume Manager, you must cancel all the pairs and then
delete the external volume mapping.
To uninstall Universal Volume Manager:
1. Start Storage Navigator, and open the Storage Navigator main window.
For instructions, see the Storage Navigator User’s Guide.
2. Delete external volume mapping.
3. Disable the Universal Volume Manager option on the Storage Navigator
computer and on each storage system.
For detailed information about the un-installation procedure, see the
Storage Navigator User’s Guide.
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Starting Universal Volume Manager
This section explains how to start Universal Volume Manager.
To start Universal Volume Manager and display the window:
1. Start Storage Navigator, and open the Storage Navigator main window.
For instructions, see the Storage Navigator User’s Guide.
2. Click Go and then Universal Volume Manager on the menu bar of the
Storage Navigator main window.
Names of the windows that you need for Universal Volume Manager
operations are available in the submenu.
3. Click the name of the window you want to display.
Universal Volume Manager starts up, and the window you selected is
displayed.
4. Switch to Modify mode if necessary.
For instructions, see the Storage Navigator User’s Guide.
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4
Using the Universal Volume Manager
GUI
This chapter explains the Universal Volume Manager windows. Universal
Volume Manager involves the Volume Operation window, the Path Operation
window and the Port Operation window. When you click the tab of the window
name, the window is switched to the corresponding window.
Using the Universal Volume Manager GUI
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Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
Volume Operation Window
The Volume Operation window enables you to perform the operations, such as
mapping external volumes and setting cross-subsystem paths. To display the
Volume Operation window, click Go, Universal Volume Manager, and then
Volume Operation on the menu bar of the Storage Navigator main window.
Figure 4-1
Volume Operation Window
The Volume Operation window consists of:
• Volume Operation Tree (left of the window)
The left pane of the window is composed of a tree, and a drop-down list
which is used to switch the display of the tree. The contents displayed in
the list (right of the window) switch corresponding to the items selected in
the tree.
• Status: Disable button or Status: Enable button (upper right of the
window)
When you click Status: Disable, the button name changes to Status:
Enable and you can display the external volume status in the Ext. VOL
Status column in the Volume Operation list.
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The Ext. VOL Status column does not display any status when you open
the Volume Operation window, because to display the external volume
status takes longer than displaying other items in the window.
Note: 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 Storage Navigator main window.
• Volume Operation List (right of the window)
Information on the local storage system and external storage system is
displayed corresponding to the items selected in the tree.
The list can be sorted by the displayed items. For instance, if you want to
sort the list in the order of LDEV numbers, click LDEV on the list.
The items clicked in the tree and the information displayed in the list are as
follows:
Table 4-1
Volume Operation Tree
Items
selected in
the list
Items displayed in
the tree
(Clicked items are
underlined)
Contents displayed in the list
Reference
Fibre
Subsystem
+ Product name
+ Path group
Information about the external storage
system. The same contents are
displayed 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
The list of external volumes and cross-
subsystem paths which are set in the
selected path group.
• Operation (lower left of the window)
The name of the performed setting operation is displayed. You can check
the details in the Preview dialog box by clicking the Preview button.
• Preview button (lower right of the window)
confirm the contents which was set in the list of the Volume Operation
window. The contents displayed in the Preview dialog box have not been
applied to the local storage system, yet.
• Apply button
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 and italics in the Volume
Operation window is displayed normally.
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When the settings are not applied, the error messages are displayed and
the settings in blue and italics remain displayed in the Volume Operation
window. To refer to the error detail, click Preview to open the Preview
dialog box.
• Cancel button
Cancels all the settings in the Preview dialog box.
Volume Operation Tree
The Volume Operation tree is a tree on the left side of the Volume Operation
window consisting of a tree and a drop-down list which is used to switch the
display of the tree.
The Volume Operation tree consists of:
• Drop-down list
A drop-down list to switch the items displayed in the Volume Operation
tree. You can select Fibre from the drop-down list as a PCB type.
• Tree
The following items are displayed in tree format. The contents displayed in
the list (right of the window) switch corresponding to the items clicked in
this tree. For details, see Table 4-1.
– Subsystem: The root node of the Volume Operation tree which is
always displayed.
– Product name of the external volume: The product name of the external
storage system whose volumes are mapped by Universal Volume
Manager is displayed below Subsystem. The display format is "Vendor
name: Product name (Serial number)".
– Path group: The path group set in the external storage system is
displayed under the product name of the external storage system.
When multiple path groups are set, the registration numbers are added
after the "Path Group" (Example: Path Group 2).
• Pop-up menu
Right-click the item in the Volume Operation tree to perform the following
operations from the pop-up menu.
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Table 4-2
Pop-up Menu for the Volume Operation Tree
Items displayed in
Tree
Pop-up Menu
Description
(clicked items are
underlined)
Subsystem
+ Product name
+ Path group
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.
Displays the Edit Policy dialog box. This dialog box
allows you to edit the mapping policy.
Subsystem
+ Product name
+ Path group
Disconnects or reconnects the external volumes in
the selected external storage system.
Subsystem
+ Product name
+ Path group
The Volume Discovery is executed and all the
external volumes found by the Volume Discovery are
displayed in the following windows.
ƒ
For the Add Volume (Auto) command:
Volume Operation window
ƒ
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 is displayed in the list.
Figure 4-2
Volume Operation List when Subsystem or a Product Name
is Clicked
The Volume Operation list consists of:
• External Subsystem
The following items are displayed:
– Vendor: Name of the vendor.
– Product Name: Name of the storage system.
– Serial Number: Serial number of the storage system.
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– Ext. VOL Status: Status of the operation executed to the external
volume or status of the connection of the mapping path. The displayed
items are shown in the following table. To check status of each LDEV in
the external volume, you need to view the VLL window.
Table 4-3
Status of the External Volume Displayed in the Ext. VOL Status
Displayed Item
Description
Normal
-
The path is normal.
The status of the mapping path is not retrieved yet. Click Status: Disable
in the Volume Operation window to 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 processing of checking the mapping path status is in progress.
Cache Destage
The writing processing of all the data in cache memory to the volume is in
progress.
Disconnect
Connecting to the external storage system or the external volume is
intentionally stopped using the Disconnect Subsystem command or the
Disconnect Volume command.
• Information Area
Information according to the contents of the External Subsystem on the
Volume Operation window is displayed 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.
• Pop-up menu
The External Subsystem does not have a pop-up menu that can be
displayed.
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 is
displayed in the list.
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Figure 4-3
Volume Operation List when Path Group is Clicked
The Volume Operation list consists of:
• External Volumes
The following items are displayed:
– ExG: external volume group number and sequential number assigned
to each volume in the external volume group. This is displayed 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 Universal Volume Manager when the
external volumes are mapped.
– LDEV: LDKC:CU:LDEV number* which is assigned to the external
volume. When multiple LDEVs are created in the external volume, the
top LDEV number is displayed, and [...] is displayed at the end of the
number.
* LDKC: Logical Disk Controller
CU: Control Unit
– Characteristic1: identification number of the external volume.
– Device: 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.
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– Capacity (blocks): capacity of the external volume in Blocks.
– Cache Mode: displays 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 ShadowImage) is asynchronously destaged to
the external storage system regardless of the Cache Mode setting.
– Inflow Control: displays 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. The
displayed modes of the cross-subsystem path are as follows:
– Single: For the Single mode, the only 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: For the Multi mode, all of the cross-subsystem paths that
you configured are used at the same time. The multiple paths are
used to execute the I/Os to the external volume distributing the
work load.
– Ext. VOL Info: information about the external volume. When the
external volume is an SATA drive of the TagmaStore AMS/WMS storage
system or the Thunder 9500V series storage system, “ * ” is displayed.
For the operation of the SATA drive, follow the method of the
TagmaStore AMS/WMS or Thunder 9500V storage system.
– Ext. VOL Status: status of the operation executed to the external
volume or status of the connection of the mapping path. For the
displayed status descriptions, see Table 4-3. To check status of each
LDEV in the external volume, you need to view the VLL window.
– Progress: displays 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.
• Cross-subsystem Paths
The following items are displayed:
– Priority: Priority of the cross-subsystem paths. “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.
– WWN: Identification number of the port in the external storage system.
• Pop-up Menu
Right-click a row in the External Volumes (at the top of the window) to
perform the following operations from the pop-up menu.
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Table 4-4
Pop-up Menu: External Volumes, Volume Operation Window
Pop-up Menu
Description
Displays the Mapping Path Information dialog box. This dialog box
allows you to refer to the list of the mapping paths set to the selected
external volume.
Displays the LDEV Information dialog box. This dialog box allows you
to refer to the emulation type and the capacity of the selected external
volume.
Cancels the mapping of the selected external volume.
Disconnects the selected external volume.
Reconnects the selected external volume.
Changes the cache mode set to the selected external volume.
Allows you to select whether to stop writing to the cache memory
when it is impossible to write to the selected external volume.
Right-click a row in the Cross-subsystem Paths (at the bottom of the
window) to perform the following operations from the pop-up menu.
Table 4-5
Pop-up Menu: Cross-Subsystem Paths, Volume Operation
Window
Pop-up menu
Description
Displays 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.
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Preview Dialog Box
The Preview dialog box allows you 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 term "the Universal Volume
Manager windows" to call these three windows.
The contents displayed in the Preview dialog box are displayed in blue italics
in the list of the Universal Volume Manager windows. The contents displayed in
the Preview dialog box have not been applied to the local storage system, yet.
When you click Apply on the Universal Volume Manager 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 Universal Volume Manager windows is displayed normally. When you
click Cancel on the Universal Volume Manager 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 Universal Volume Manager
windows, an error message is displayed and the erroneous settings are
displayed in blue and italics in the Universal Volume Manager windows. To
refer to the error detail, click Preview to open the Preview dialog box.
Note: 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.
Figure 4-4
Preview Dialog Box
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The Preview dialog box consists of:
• Preview Area
The items set in the list of the Universal Volume Manager windows are
displayed. The contents displayed in the preset area differ depending on
the items set in the list of the Universal Volume Manager windows. The
contents displayed in the preset area are displayed in blue italics in the
list of the Universal Volume Manager windows.
• Operation Information Area
The operation information on the settings displayed in the Preview dialog
box is displayed in the operation information area. Following information is
displayed:
– Operation: name of the setting operation.
– Total Number of Objects in Preview: the number of settings
displayed in the Preview dialog box.
• Close button
The Preview dialog box closes, and returns to the Universal Volume
Manager windows.
• Pop-up menu
Right-click a row in the Preview dialog box to perform the following
operations from the pop-up menu.
– Error Message: Displays the error message of the selected setting.
– Delete: Cancels the settings selected in the Preview dialog box.
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Path Operation Window
The Path Operation window enables you to stop or resume using cross-
subsystem paths. To display the Path Operation window, click Go, Universal
Volume Manager, and then Path Operation on the menu bar of the Storage
Navigator main window.
Figure 4-5
Path Operation Window
The Path Operation window consists of:
• Path Operation Tree (left of the window)
The left pane of the window is composed of a tree, and a drop-down list
which is used to switch the display of the tree. The contents displayed in
the list (right of the window) change corresponding to the items selected in
the tree.
• Status: Disable button or Status: Enable button (upper right of the
window)
When you click Status: Disable, the button name changes to Status:
Enable and you can display the cross-subsystem path status in the Status
column in the Path Operation list.
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The Status column does not display any status when you open the Path
Operation window, because to display the cross-subsystem path status
takes longer than displaying other items in the window.
Note: 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 Storage Navigator main window.
• List (right of the window)
Information on the local storage system and external storage system is
displayed corresponding to the items selected in the tree.
The list can be sorted by the displayed items. For instance, if you want to
sort the list in the order of port numbers, click Port on the list.
The items clicked in the tree and the information displayed in the list are as
follows:
Table 4-6
Path Operation Tree
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
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
Product name
+ WWN
WWNs of the external storage
system.
Subsystem
Product name
+ WWN
to the selected WWN of the external
storage system.
The same contents are displayed
when you click the port number in
the tree.
• Operation (lower left of the window)
The name of the performed setting operation is displayed. You can check
the details in the Preview dialog box by clicking the Preview button.
• Preview button (lower right of the window)
When you click Preview, the Preview dialog box is displayed and you can
confirm the contents, which was set in the list of the Path Operation
window. The contents displayed in the Preview dialog box have not been
applied to the local storage system, yet.
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• Apply button
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 and italics in the Path Operation
window is displayed normally.
When the settings are not applied, the error messages are displayed and
the settings in blue and italics remain displayed in the Port Operation
window. To refer to the error detail, click Preview to open the Preview
dialog box.
• Cancel button
Cancels all the settings in the Preview dialog box.
Path Operation Tree
The Path Operation tree is a tree on the left side of the Path Operation window
consisting of a tree and a drop-down list which is used to switch the display of
the tree.
The Path Operation tree consists of:
• Drop-down list
A drop-down list to switch 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 are displayed in tree format. The contents displayed in
the list (right of the window) change corresponding to the items clicked in
this tree. For details, see Table 4-1.
When you select Fibre - Local Subsystem from the drop-down list, the
following items are displayed in the tree:
– Subsystem: The root node of the Path Operation tree which is always
displayed.
– Port number: The port number of the local storage system, which the
port attribute is set to External, is displayed below Subsystem. One of
the following icons is displayed:
–
–
: Ports in the Standard mode.
: Ports in the Initiator/External MIX mode.
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When you select Fibre - External Subsystem from the drop-down list,
the following items are displayed in the tree:
– Product name of the external volume: The product name of the external
storage system which is connected by Universal Volume Manager is
displayed as a root node. The display format is "Vendor name: Product
name (Serial number)".
– WWN: The WWNs of the external storage system is displayed below the
product name of the external storage system.
• Pop-up menu
The Path Operation tree does not have a pop-up menu that can be
displayed.
Path Operation List (When Subsystem is Clicked)
When you click Subsystem in the Path Operation tree, the external port
information which is set to the local storage system is displayed in the list.
Figure 4-6
Path Operation List when Subsystem is Clicked
The Path Operation list consists of:
• Port
The following items are displayed:
– Port: The external port of the local storage system. One of the
following icons is displayed:
–
–
: 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 Universal Volume Manager. You cannot change the value.
– FLI_TOV: The wait time (in seconds) from the switch to FLOGI when
the switch is connected. This value is automatically set by Universal
Volume Manager. You cannot change the value.
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– Margin: The additional wait time (in seconds) to FLI_TOV (FLOGI wait
time) or PLI_TOV (PLOGI wait time). This value is automatically set by
Universal Volume Manager. 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.
displayed statuses.
• Pop-up menu
Right-click a row in the Path Operation list to perform the operations from
the pop-up menu (Table 4-8).
Table 4-7
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: Disable in
the Path Operation window to display the status of the cross-subsystem path.
Unknown
Blockade
Disconnect
The status of the cross-subsystem path is unknown.
The cross-subsystem path is blocked.
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.
Table 4-8
Pop-up Menu in the Path Operation List (when Subsystem is
clicked)
Pop-up Menu
Description
Allows you to stop the use of the cross-subsystem paths which are connected to the
selected external port of the local storage system.
Allows you to resume using the cross-subsystem paths which are connected to the
selected external port of the local storage system.
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Path Operation List (When Product Name is Clicked)
When you click a product name in the Path Operation tree, WWN which
indicate the port in the external storage system is displayed in the list.
Figure 4-7
Path Operation List when Product Name is Clicked
The Path Operation list consists of:
• WWN
The following items are displayed:
– WWN: WWN indicating the port in the external storage system that 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: Value specified as the time over of the I/O to the external
volume.
– Path Watch: 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: Status of the cross-subsystem path. For the displayed statuses,
see Table 4-7.
• Pop-up menu
Right-click a row in the Path Operation list to perform the following
operations from the pop-up menu.
Table 4-9
Pop-up Menu in the Path Operation List (when Product Name
is clicked)
Pop-up Menu
Description
Allows you to stop the use of the cross-subsystem paths which are connected
to the selected external port of the local storage system.
Allows you to restart the use of the cross-subsystem paths which are
connected to the selected external port of the local storage system.
Displays the Change WWN Parameter dialog box. This dialog box allows you to
change the parameters on the port of the external storage system.
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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 is displayed in the list.
Figure 4-8
Path Operation List when Port or WWN is Clicked
The Path Operation list consists of:
• Cross-subsystem Paths
The following items are displayed:
– 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: product name of the external storage system.
– Serial Number: serial number of the external storage system.
– Status: Status of the cross-subsystem path. For the displayed statuses,
see Table 4-7.
• Pop-up menu
When you click port or WWN in the Path Operation tree, the Path Operation
list does not have a pop-up menu that can be displayed.
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Port Operation Window
The Port Operation window enables you to check the settings of ports and set
the port attributes. To display the Port Operation window, click Go, Universal
Volume Manager, and then Port Operation on the menu bar of the Storage
Navigator main window.
Figure 4-9
Port Operation Window
The Port Operation window consists of:
• Port Operation Tree (left of the window)
The left pane of the window is composed of a tree, and a drop-down list
which is used to switch the display of the tree. The contents displayed in
the list (right of the window) change corresponding to the items selected in
the tree.
• Port Operation List (right of the window)
Information on the port is displayed corresponding to the items selected in
the tree. The list can be sorted by the displayed items. For example, if you
want to sort the list in the order of port numbers, click Port on the list.
• Operation (lower left of the window)
The name of the performed setting operation is displayed. You can check
the details in the Preview dialog box by clicking the Preview button.
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• Preview button (lower right of the window)
When you click Preview, the Preview dialog box is displayed and you can
confirm the contents which was set in the list of the Port Operation
window. The contents displayed in the Preview dialog box have not been
applied to the local storage system, yet.
• Apply button
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 and italics in the Port Operation
window is displayed normally.
When the settings are not applied, the error messages are displayed and
the settings in blue and italics remain displayed in the Port Operation
window. To refer to the error detail, click Preview to open the Preview
dialog box.
• Cancel button
Cancels all the settings in the Preview dialog box.
Port Operation Tree
The Port Operation tree is a tree on the left side of the Port Operation window
consisting of a tree and a drop-down list which is used to switch the display of
the tree.
The Port Operation tree consists of:
• Drop-down list
A drop-down list to change the items displayed in the Port Operation tree.
You can select Fibre from the drop-down list as a PCB type.
• Tree
The ports in the local storage system are displayed in the tree. The
contents displayed in the list (right of the window) switch 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 is displayed in the list when you select
Subsystem. Subsystem is selected, when you display the Port
Operation window.
– Port attribute: The following attributes are displayed:
– 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 Universal Volume Manager. 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.
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– Initiator: When you click Initiator, the ports set as the initiator
port (used for TrueCopy, TrueCopy for IBM z/OS, Universal
Replicator, Universal Replicator for IBM z/OS, 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 TrueCopy, TrueCopy for IBM z/OS,
Universal Replicator, Universal Replicator for IBM z/OS, 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.
• Pop-up menu
The Port Operation tree does not have a pop-up menu that can be
displayed.
Port Operation List
When you click the items in the Port Operation tree, the port in the local
storage system is displayed in the list. The list can be sorted by the displayed
items. For instance, if you want to sort the list in the order of port numbers,
click Port on the list.
The Port Operation list consists of:
• Port Information
The following items are displayed:
– Port: Port number. One of the following icons is displayed 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.
– PCB Mode: The PCB mode of the port is displayed. Standard, High
Speed, or MIX (for Initiator/External MIX mode) is displayed. The
external ports do not have the High Speed mode. For detailed
information on the PCB mode, see the LUN Manager User’s Guide.
• Information Area
The total number of ports in the Port Operation list (Total Number of
Ports) is displayed.
• Pop-up Menu
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Right-click a row in the Port Information to perform the following
operations from the pop-up menu.
Table 4-10 Pop-up Menu in the Port Information
Pop-up menu
Description
Allows you to change the selected port attribute to external.
Allows you to change the selected port attribute to target.
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Overview of Setting Operations
The following figure illustrates the flow chart of the setting operations, which
make external volumes usable from a host, by using Universal Volume
Manager.
Prepare a volume in the external storage system.
(Setting on the external storage system site)
Set the port of the external storage system.
(Setting on the external storage system site)
Set the port of the local storage system.
(Port Operation window)
Map the external volume.
(Volume Operation window)
Which type of the
emulation type is set for the
mapped volume,
For Mainframe
for the Open system, or
the Mainframe system?
Perform one of the following operation
using Virtual LVI/LUN (VLL).
- Format the volume
For Open
Define LU paths to a host
using LUN Manager.
- Perform the Write to Control Blocks operation
Figure 5-1
Operations of Making External Volumes Usable from a Host
The outlined procedure of the 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, refer to the documents for your external storage system.
3. Start Storage Navigator and set the attribute of the port connecting the
external storage system to External in the Port Operation window of
Universal Volume Manager.
4. Map the external volume to the internal volume.
You can map external volumes automatically or manually in the Volume
Operation window.
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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 Virtual LVI/LUN and
Volume Shredder User’s Guide.
– If you select the emulation type of open-system, you need to define LU
paths to a host using LUN Manager. For the procedure of defining LU
paths, see the LUN Manager User’s Guide.
Setting Port of External Storage System
This section describes the procedure of setting port of the external storage
system. For detailed information, refer to the documents for the external
storage system you use.
To set the port of the external storage system:
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.
the external storage systems.
4. Define the LUN to the port that is set.
Setting Port Attribute for Local Storage System
The attribute of the port used for Universal Volume Manager needs to be set to
the external port.
Note: If the storage system is partitioned by using Virtual Partition Manager,
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 Storage Navigator, and open the Port Operation window.
2. Make sure that Storage Navigator is in Modify mode.
3. Right-click the port that you want to set to external port in the Port
Operation list.
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Note: 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.
5. Verify the settings in the Preview dialog box.
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 is
displayed. 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 LUN
Manager User’s Guide.
8. According to the configuration, set the data transfer speed.
For the data transfer speed, select Auto Negotiation setting.
Note: When you connect a TagmaStore AMS/WMS storage system, use LUN
Manager to set the data transfer speed of the external port which you use to
a fixed value other than the Auto. Also, set the data transfer speed of the
target port of the TagmaStore 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 Universal Volume Manager to
the external port, you are enabled to map the external volume as an internal
volume.
External volumes can be mapped either automatically or manually. This
section explains the automatic mapping.
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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 which is automatically assigned is 00.
Note: Before you map the external volume, check whether any application
(for example, Command Control Interface) is using the command device. If
there is, stop the application.
To map the external volume automatically:
1. Start Storage Navigator, and open the Volume Operation window.
2. Make sure that Storage Navigator 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 click the desired
mapping policy in the submenu.
– When you click the Subsystem in the Volume Operation tree, the
Configure Cross-subsystem Paths dialog box is displayed. Go on to step
– 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 blue italics in the Volume Operation
window. Go on to the step 7.
5. Configure cross-subsystem paths in the Configure Cross-subsystem Paths
dialog box.
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.
You are returned to the Volume Operation window. The Volume Discovery
is executed, and all the external volumes found by the Volume Discovery
are mapped. The settings are displayed in blue italics.
7. Verify the settings in the Preview dialog box.
8. Click Apply in the Volume Operation window.
The settings are applied to the local storage system and the Volume
Operation window is displayed normally. When an error occurs, an error
message is displayed. Verify the details in the Preview dialog box.
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Mapping an External Volume Manually
After setting the attribute of the port used for Universal Volume Manager to
the external port, you are enabled to map the external volume as an internal
volume.
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.
Note: Before you map the external volume, check whether any application
(for example, Command Control Interface) is using the command device. If
there is, stop the application.
To map the external volume manually:
1. Start Storage Navigator, and open the Volume Operation window.
2. Make sure that Storage Navigator 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 (Manual) in the pop-up menu and click the desired
mapping policy in the submenu.
– When you click the Subsystem in the Volume Operation tree, the
Configure Cross-subsystem Paths dialog box is displayed. Go on to step
– When you click the path group in the Volume Operation tree, the
Volume Discovery is executed and the Add Volume dialog box is
displayed. Go on to the step 7.
5. Configure cross-subsystem paths in the Configure Cross-subsystem Paths
dialog box.
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 are displayed in the Add Volume dialog box.
The Add Volume dialog box displays a list of all the external volumes which
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.
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7. In the Add Volume dialog box, right-click the external volume that you
want to map.
Note: 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).
– a) The Set External Volume Parameter command: Allows you to
configure the external volume parameters. After you configure
parameters, click OK to close the 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 dialog
box.
The LDEV Mapping (Auto) command: 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.
The LDEV Mapping (Manual) command: 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 is displayed.
9. In the Add Volume dialog box, make the settings to all the volumes you
Note: 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.
10.Click OK to close the Add Volume dialog box.
– When the SSID setting is required, the SSID dialog box is displayed. Go
on to step 11.
– When the SSID setting is not required, the Volume Operation window is
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 is displayed.
12.In the Set SSID dialog box, select a value from the SSID drop-down list
and click OK.
The selected value is displayed in the SSID dialog box.
13.In the SSID dialog box, make the settings to all the LDEVs that you need to
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14.Click OK to close the SSID dialog box.
You are returned to the Volume Operation window. The settings are
displayed 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 is displayed normally. When an error occurs, an error
message is displayed. Verify the details in the Preview dialog box.
Add Volume Dialog Box
The Add Volume dialog box allows you to view the external volume parameter
or LDEV number which are configured to the LDEVs in the external volume.
The Add Volume dialog box is automatically displayed when you click the Add
Volume (Manual) command in the Volume Operation window.
The Add Volume dialog box displays the list of the external volumes which can
be mapped to the local storage system. If you want to map the external
volume, you need to configure the external volume parameter and the LDEV
number. The parameter which you have not configured is displayed with " - ".
To configure such parameter, click the external volume having the parameter
which 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 5-2
Add Volume Dialog Box
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The Add Volume dialog box consists of:
• List
– 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 which is assigned to the external volume.
– Number of LDEVs: number of LDEVs which are actually created in the
external volume.
– SLPR/CLPR: SLPR and CLPR used to access the external volume. This
is displayed when the cache memory is partitioned using Virtual
Partition Manager.
– Cache Mode: displays whether the write data from the host to the
external storage system is propagated synchronously (Disable) or
asynchronously (Enable).
– Inflow Control: displays if 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 from the pop-up menu.
Table 5-1
Pop-up Menu in the Add Volume dialog box
Pop-up Menu
Description
Set External
Volume Parameter
Displays the Set External Volume Parameter dialog box. This dialog box allows
you to set the parameters.
LDEV Mapping
(Auto)
Displays the LDEV Mapping (Auto) dialog box. This dialog box allows you to
specify the LDEV number to the first LDEV in the external volume.
LDEV Mapping
(Manual)
Displays the LDEV Mapping (Manual) dialog box. This dialog box allows you to
specify the LDEV number to all the LDEVs in the external volume.
Delete
Allows you to delete the external volume from the Add Volume dialog box.
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Set External Volume Parameter Dialog Box
The Set External Volume Parameter dialog box allows you to set the external
volume parameter. The Set External Volume Parameter dialog box is displayed
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 5-3
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. You need to specify the
number using decimal numbers from 1 to 16384. “E” displayed outside of
the text box is the capital letter of the external volume group.
• Emulation Type
You can select the emulation type of the mapped external volume from the
drop-down list.
If you want to map the external volume as an open system volume, you
need to first decide the emulation type for the mapped volume, OPEN-V or
other than OPEN-V. If you want 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.
– As you clear the Except OPEN-V check box, OPEN-V and available
mainframe emulation types are displayed in the drop-down list.
– As you select the Except OPEN-V check box, the emulation types for
the open system other than OPEN-V are also displayed in the drop-
down list.
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• Number of LDEVs
You can select the maximum number of LDEVs which can be created in the
external volume when you map the external volume. The number of LDEVs
that can be created in the external volume 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 is
displayed 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 ShadowImage) 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.
• 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 Virtual Partition Manager, you
can select CLPR used for accessing to the mapped external volume from
the drop-down list. The number of SLPR to which the selected CLPR
belongs is displayed at the right of the drop-down list. However, when the
emulation type for the mainframe is selected in Emulation Type, you can
only select 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
The LDEV Mapping (Auto) dialog box allows you 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.
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Figure 5-4
LDEV Mapping (Auto) Dialog Box
The LDEV Mapping (Auto) dialog box consists of:
• SLPR Limited
To restrict the CU in the CU drop-down list to the CU which belongs to the
SLPR, select the Limited. To display all the CU in the CU drop-down list
without any restriction, select the Unlimited. By default, the Limited is
selected.
• LDKC drop-down list
You can select the LDKC number of the local storage system to which you
want to map the external volume.
• CU drop-down list
You can 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 drop-down list
You can 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 drop-down list.
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• 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 are displayed in white.
• OK button
Saves the settings and closes the dialog box.
• Cancel button
Cancels the settings and closes the dialog box.
• Pop-up menu
This dialog box does not have a pop-up menu that can be displayed.
LDEV Mapping (Manual) Dialog Box
The LDEV Mapping (Manual) dialog box allows you to specify the LDEV number
to all the LDEVs in the external volume.
Figure 5-5
LDEV Mapping (Manual) Dialog Box
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The LDEV Mapping (Manual) dialog box consists of:
• List
– ExG
The external volume group number of the connected external volume,
which you specified in the Set External Volume Parameter dialog box, is
displayed.
– LDKC:CU:LDEV
You 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 numbers 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. “ - ”
indicates that the external volumes are not mapped as internal volumes.
To assign an LDEV number to an LDEV, select one or more external
volume whose LDEV number is “ - ” 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.
• Pop-up menu
This dialog box does not have a pop-up menu that can be displayed.
Other items are same as the LDEV Mapping (Auto) dialog box.
SSID Dialog Box
The SSID dialog box allows you to set the SSID to the LDEVs in the external
volume. The USP V/VM storage system assigns a SSID which 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 is
displayed during the mapping operation when the SSID setting is required.
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Figure 5-6
SSID Dialog Box
The SSID dialog box consists of:
• SLPR drop-down list
When the storage system is partitioned using Virtual Partition Manager, use
the SLPR drop-down list.
If you select the SLPR Limited check box and select the SLPR number in
the SLPR drop-down 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 is displayed.
– SSID
The SSIDs allocated to each LDEV are displayed. If SSID is not set, " - "
is displayed.
• 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. The Set SSID command allows you to set the SSID to
the selected LDEV. When you click the Set SSID, the following dialog box
is displayed.
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Figure 5-7
Set SSID Dialog Box
SSID (0004-FFFE): Select the SSID from the SSID drop-down 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 are displayed in the drop-down list.
– If you have not selected the SLPR Limited check box on the SSID
dialog box, all of the unused SSIDs are displayed in the drop-down
list regardless of the selected SLPR.
Example: How to Map LDEVs Automatically
For instance, you map two external volumes which have the same emulation
type, and create two LDEVs in each external volume.
To assign the number starting with 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 is displayed.
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 displays only the LDEV number
assigned for the first LDEV of each external volume. In this case,
00:01:01... and 00:03:01... are displayed in the Add Volume dialog box.
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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 is displayed.
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 drop-down 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 (Manual) dialog box.
The selected cell turns blue and the assigned LDEV number is displayed in
the LDKC:CU:LDEV column.
5. Make the settings to all the LDEVs in the LDKC:CU:LDEV column (repeat
6. Click OK.
The specified numbers are assigned to the LDEVs. However, the Add
Volume dialog box displays only the LDEV number assigned for the first
LDEV of each external volume.
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Figure 5-8
Example of LDEV Mapping (Manual) Dialog Box
Note: You can also assign contiguous LDEV numbers to LDEVs using this
dialog box. To assign contiguous LDEV numbers to LDEVs, select multiple
can set Interval if necessary.
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.
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 completed. To configure the
cross-subsystem paths, use the Configure Cross-subsystem Paths dialog box.
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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
The Configure Cross-subsystem Paths dialog box allows you to configure
cross-subsystem paths. This dialog box is automatically displayed 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 which
you have configured the mapping. However, the Configure Cross-subsystem
Paths dialog box displays all the external storage system connected to the
local storage system even without the mapping configuration. To update the
dialog box, click the Port Discovery button in the upper right of the dialog
box.
Figure 5-9
Configure Cross-subsystem Paths Dialog Box
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The Configure Cross-subsystem Paths dialog box consists of:
• Available Paths (Upper part of the dialog box)
The following three panes are displayed from the left,
– The left pane displays the external storage systems connected to the
local storage system.
– Vendor: vendor name.
– Product Name: product name.
– Serial Number: serial number of the product.
– The middle pane displays external ports of the local storage system,
which connects to the external storage system that you clicked in the
left pane. One of the following icons is displayed for each port:
– Port: external port of the local storage system. One of the
following icons is displayed:
: Ports in the Standard mode.
: Ports in the Initiator/External MIX mode.
– The right pane displays WWN of the external storage system that the
port attribute is set to Target. The WWN which connects to the port that
you clicked in the middle pane is displayed out of the WWN of the
external storage system which you clicked 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 displayed in the Available Paths or
display the information on all the external storage system connected to the
local storage system even without the mapping configuration. When you
click Port Discovery, the Port Discovery dialog box is displayed.
Figure 5-10
Port Discovery Dialog Box
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The Port Discovery dialog box displays 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 that the Available Paths in the Configure Cross-
subsystem Paths dialog box is updated.
• Selected Paths (Lower part of the dialog box)
The cross-subsystem paths that you have added in the Available Paths
are displayed.
– 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.
• 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 from the pop-up menu.
Table 5-2
Pop-up Menu in the Configure Cross-Subsystem Paths dialog
box
Right-clicked
Area
Pop-up
Menu
Description
WWN in the
Add
Allows you to add cross-subsystem paths.
Available Paths
Selected Paths
Delete
Allows you to delete the selected cross-subsystem path.
Raise
Priority
Allows you to raise the priority of the selected cross-
subsystem path.
Lower
Priority
Allows you to lower the priority of the selected cross-
subsystem path.
Configuring 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
operation.
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To add the cross-subsystem path to an existing path group:
1. Start Storage Navigator, and open the Volume Operation window.
2. Make sure that Storage Navigator 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 is displayed.
6. In the Available Paths, click the following three items, and then right-
click the WWN in the WWN.
– External storage system: Click the external storage system.
– Port: Click the external port of the local storage system which is the
starting point of the cross-subsystem path.
– WWN: Click the WWN of the external storage system which is the
ending point of the cross-subsystem path.
Note: When 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 the Port Discovery button, selecting the port which connects
to the WWN, and then clicking OK.
7. 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.
You are returned to the Volume Operation window. The settings are
displayed in blue and italics.
9. Verify the settings in the Preview dialog box.
10.Click Apply in the Volume Operation window.
The settings are applied to the local storage system and the Volume
Operation window is displayed normally. When an error occurs, an error
message is displayed. Verify the details in the Preview dialog box.
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Figure 5-11
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 Storage Navigator, and open the Volume Operation window.
2. Make sure that Storage Navigator 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 is displayed.
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.
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8. Repeat the operation of the Raise Priority command until the row of the
selected path is displayed 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.
You are returned to the Volume Operation window. The settings are
displayed in blue and italics.
10.Verify the settings in the Preview dialog box.
11.Click Apply in the Volume Operation window.
The settings are applied to the local storage system and the Volume
Operation window is displayed normally. When an error occurs, an error
message is displayed. 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 Storage Navigator, and open the Volume Operation window.
2. Make sure that Storage Navigator 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.
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.
You are returned to the Volume Operation window. The settings are
displayed in blue and italics.
9. Verify the settings in the Preview dialog box.
10.Click Apply in the Volume Operation window.
The settings are applied to the local storage system and the Volume
Operation window is displayed normally. When an error occurs, an error
message is displayed. Verify the details in the Preview dialog box.
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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.
Replacing All the 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.
Figure 5-12 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 which 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.
A
B
C
D
Execute the Disconnect Paths command
on the cross-subsystem path A.
Internal
Volume
External
Volume
A
B
C
D
Delete the cross-subsystem path A,
add the cross-subsystem path C,
and then apply the setting.
Internal
Volume
External
Volume
A
B
C
D
Execute the Disconnect Paths command
on the cross-subsystem path B.
Internal
Volume
External
Volume
A
Delete the cross-subsystem path B,
add the cross-subsystem path D,
and then apply the setting.
B
C
D
Internal
Volume
External
Volume
A
B
C
D
Internal
Volume
External
Volume
Legend
：
Internal volume where external volume is mapped
Cross-subsystem path whose status is Normal
Cross-subsystem path whose status is Disconnect
：
：
：Added cross-subsystem path
Figure 5-12
Overview of Operation to Replace All the Current Cross-
subsystem Paths with Newly-added Cross-subsystem Paths
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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 which the cross-subsystem path A uses, and connect
the cable which 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.
7. Disconnect the cable which the cross-subsystem path B uses, and connect
the cable which 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 Storage Navigator, 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. Click the following command in the pop-up menu.
– LDEV information: Displays the LDEV Information dialog box.
– Mapping Path Information: Displays the Mapping Path Information
dialog box.
5. Verify the details in the displayed dialog box.
6. Click Close to close the displayed dialog box.
You are returned to the Volume Operation window.
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LDEV Information Dialog Box
The LDEV Information dialog box displays the information on the LDEVs
created in the external volumes. Each row displays one LDEV information.
Figure 5-13
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 is displayed. When the
emulation type of the mapped external volume is for the open system,
the capacity is displayed in Blocks. When the emulation type of the
mapped external volume is for the mainframe system, the capacity is
displayed in Cylinder.
• Close button
Closes the LDEV Information dialog box.
• Pop-up menu
The LDEV Information dialog box does not have a pop-up menu that can be
displayed.
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Mapping Path Information Dialog Box
The Mapping Path Information dialog box displays the information on the
mapping paths which connect the internal volume and the external volume.
Figure 5-14
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.
status terms that are displayed on the Mapping Path Information dialog
box.
• Close button
Close 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 5-3
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 in the
Volume Operation window to display the status of the mapping path.
Unknown
The status of the mapping path is unknown.
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Displayed Item
Description
Blockade
The mapping path is blocked.
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.
The reply from the external storage system was ABORTED COMMAND.
Illegal request
Command
aborted
Busy
The external storage system is in the BUSY status.
LDEV reserved
Response error
Initiator port
The external storage system is in the Reserve status.
The external storage system is in the blocked status because of 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.
The processing was retried because an abnormal reply was returned, however, the
processing has been timed out.
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 processing 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 has been changed, 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.
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Turning On or Off the Storage System
This section describes the procedures to turn on or off the power supply of the
local storage system and the external storage system after the Universal
Volume Manager operation has been started.
This section includes the following procedures, and uses ShadowImage as an
example:
When you turn on or off the power supply of only external storage system, you
Cautions:
• 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 external storage system
while the power supply of the local storage system keeps on, you need to
execute the following Universal Volume Manager commands.
The commands used for the procedure are as follows:
• 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).
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Note: When you want to perform the same processing of the Disconnect
Subsystem command on individual volume, you can use the Disconnect
Volume command. If you want to delete the external volume mapping
individually, you first need to execute the Disconnect Volume command and
then the Delete Volume command.
• 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, firstly remove the error in the path to make
the path restorable, and then execute the Check Paths & Restore
Volume command.
Note: 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, if there is some.
4. Turn off the power supply of the external storage system.
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Cautions:
• 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:
– Turn on the external storage system that contains the external
volume, which is mapped as an internal volume.
– Execute the Check Paths & Restore Volume command of the
Universal Volume Manager.
• 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, if there is some.
3. Turn off the power supply of the local storage system.
Note: As you turn off the power supply of the local storage system, all the
data, which is for the external volume, in the local cache memory is written
in the external volume (all the data is destaged).
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To turn on the power supply of the local 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. Turn on the power supply of the local storage system.
Cautions:
• 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 if the defined
information and the actual status of the external volume mapped as an
internal volume match. 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 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.
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 ShadowImage 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 ShadowImage pairs (pairsplit operation). For details on the
pairsplit operation, see the ShadowImage User’s 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.
Cautions: Make sure that the power supply of the external storage system
is completely off.
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To turn on the power supply of both storage systems:
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 ShadowImage pairs (pairresync operations).
For details on the pairresync operation, see the ShadowImage User’s
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 volume(s), 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.
As you execute the Disconnect Subsystem command or the Disconnect
Volume command, the acceptance of the host I/O to the mapped external
volume is stopped 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.
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The following table describes operations that are required before disconnecting
external volumes.
Table 5-4
Operations Required before Disconnecting External Volumes
If External Volume is Used
in this way
This Operation is Required
I/Os to the external volume
from the open system host
are in progress.
Stop the host I/Os to the volume and un-mount from the 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
pair of the copy program
products*.
Delete the pairs.
However, you can disconnect external volumes without deleting pairs
when the ShadowImage pair status is PSUE or when the ShadowImage
for IBM z/OS pair status is Suspend.
The external volume includes
the LDEVs that are registered
to a pool for Copy-on-Write
Snapshot as pool volumes.
Change the status of the Copy-on-Write Snapshot pair to PAIR.
The external volume includes
the LDEVs that are registered
to a pool for Dynamic
Perform the following operations on all the Dynamic Provisioning
volumes (V-VOLs) that are associated with a pool to which the external
volume is registered.
Provisioning as pool volumes.
ƒ
ƒ
Stop the use of the Dynamic Provisioning volumes.
Block the Dynamic Provisioning volumes by using the VLL function
for blocking volumes.
The external volume includes
the LDEVs for which the
migration processing of
Volume Migration is in
progress.
Delete the migration plans.
*Note: The copy program products includes ShadowImage, ShadowImage for IBM z/OS, Universal
Replicator, Universal Replicator for IBM z/OS, TrueCopy, TrueCopy for IBM z/OS, and Copy-on-Write
Snapshot.
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Cautions: 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
Storage Navigator 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 been 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 Storage Navigator, and open the Volume Operation window.
2. Make sure that Storage Navigator 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 are displayed in blue and 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 is displayed normally. When an error occurs, an error
message is displayed. Verify the details in the Preview dialog box.
Caution: If you want 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)
To disconnect an individual external volume:
1. Start Storage Navigator, and open the Volume Operation window.
2. Make sure that Storage Navigator is in Modify mode.
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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 are displayed in blue and 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 is displayed normally. When an error occurs, an error
message is displayed. Verify the details in the Preview dialog box.
Caution: If you want to access the external storage system after you have
executed the Disconnect Volume command, you need to execute the
Check Paths & Restore Volume command.
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
execute the Check Paths & 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.
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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 Storage
Navigator main window is Status: Enable, and click File and Refresh on
the menu bar of the Storage Navigator main window.
Note: 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.
Resuming All External Volumes (Check Paths & Restore Volume)
To resume all the external volumes in the external storage system at once:
1. Start Storage Navigator, and open the Volume Operation window.
2. Make sure that Storage Navigator 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 are displayed in blue and italics.
5. Verify the settings in the Preview dialog box.
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 can not be
resumed, the Ext. VOL Status changes to Blockade.
Resuming an Individual External Volume (Check Paths & Restore
Volume)
To resume an individual external volume:
1. Start Storage Navigator, and open the Volume Operation window.
2. Make sure that Storage Navigator 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.
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The settings are displayed in blue and italics.
6. Verify the settings in the Preview dialog box.
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 can not be resumed, the Ext.
VOL Status changes to Blockade.
Stopping the Use of Paths to the External Volume
(Disconnect Paths)
You 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 which is stopped by the Disconnect
Paths command, use the Check Paths command.
Note: 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 Storage Navigator, and open the Path Operation window.
2. Make sure that Storage Navigator is in Modify mode.
3. Select one of the following from the drop-down 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 are displayed in blue and italics.
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7. Verify the settings in the Preview dialog box.
8. Click Apply in the Path Operation window.
The settings are applied to the local storage system and the Path Operation
window is displayed normally. When an error occurs, an error message is
displayed. Verify the details in the Preview dialog box.
Restoring the Paths to the External Volume (Check Paths)
You use the Check Paths command to resume using the cross-subsystem
path which was stopped by the Disconnect Paths command.
Note: The path has to be in a status that can be restored.
To restore the path to the external volume:
1. Start Storage Navigator, and open the Path Operation window.
2. Make sure that Storage Navigator is in Modify mode.
3. Select one of the following from the drop-down 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 are displayed in blue and italics.
7. Verify the settings in the Preview dialog box.
8. Click Apply in the Path Operation window.
The settings are applied to the local storage system and the Path Operation
window is displayed normally. When an error occurs, an error message is
displayed. Verify the details in the Preview dialog box.
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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 the 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 ShadowImage) is asynchronously destaged to the
external storage system regardless of the Cache Mode setting.
Check the following before changing the cache mode of the external volume.
• Whether the volume is not set as a volume which constitutes a part of a
LUSE volume.
When it is set as a volume which constitutes a part of a LUSE volume, the
cache mode setting should be same among all volumes which constitutes 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 Storage Navigator, and open the Volume Operation window.
2. Make sure that Storage Navigator 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 are displayed in blue and 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 is displayed normally. When an error occurs, an error
message is displayed. Verify the details in the Preview dialog box.
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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 the 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 Storage Navigator, and open the Volume Operation window.
2. Make sure that Storage Navigator 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 are displayed in blue and 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 is displayed normally. When an error occurs, an error
message is displayed. Verify the details in the Preview dialog box.
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.
Cautions:
• 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 Storage Navigator, and open the Path Operation window.
2. Make sure that Storage Navigator is in Modify mode.
3. Select Fibre - External Subsystem from the drop-down list above the
Path Operation tree.
4. Click the product name in the Path Operation tree.
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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.
The Change WWN Parameter dialog box is displayed.
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.
You are returned to the Path Operation window. The selected items are
displayed in blue and 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 is displayed normally. When an error occurs, an error message is
displayed. Verify the details in the Preview dialog box.
Change WWN Parameter Dialog Box
Figure 5-15
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 are 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 are 5 to 240 (in second). 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 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 are from 5 to 180 (seconds). The default value is 10.
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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.
To edit the mapping policy:
1. Start Storage Navigator, and open the Volume Operation window.
2. Make sure that Storage Navigator 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 is displayed.
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 is changed, and then the Volume Operation window is
displayed.
Edit Policy Dialog Box
The Edit Policy dialog box allows you to edit the mapping policy.
Figure 5-16
Edit Policy Dialog Box
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 drop-down list.
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– CLPR: CLPR used for accessing to the mapped volume when the cache
memory is partitioned using Virtual Partition Manager.
– SLPR: SLPR that the selected CLPR belongs to. However, 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: displays if the write I/O from the host is propagated
synchronously (Disable) or asynchronously (Enable) to the external
storage device.
– Inflow Control: displays 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: displays 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 is displayed.
• Close button
Close the Edit Policy dialog box.
• Pop-up menu
The Edit Policy dialog box does not have a pop-up menu that can be
displayed.
Deleting the External Volume Mapping
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.
Check the following before deleting the external volume mapping.
• Whether the execution of any application (for example, Command Control
Interface) 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.
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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.
• Whether the volume is set as a volume which configures a LUSE volume.
When it is set as a volume which configures a LUSE volume, you cannot
delete the external volume mapping.
• 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 TrueCopy pair, Universal
Replicator pair, ShadowImage pair, or Copy-on-Write Snapshot pair.
When the volume is set to configure the TrueCopy pair, Universal
Replicator pair, ShadowImage pair, or Copy-on-Write Snapshot pair, you
cannot delete the external volume mapping.
• Whether the volume is set as a reserved volume for ShadowImage or
Volume Migration.
When the volume is set as the reserved volume for ShadowImage or
Volume Migration, 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 Storage Navigator, and open the Volume Operation window.
2. Make sure that Storage Navigator 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 are displayed in blue and italics.
6. Verify the settings in the Preview dialog box.
7. Click Apply in the Volume Operation window.
8. When a message asking if you have performed the Disconnect operation is
displayed, 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.
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– If you click No, a message asking if you want to execute the Delete
Volume operation without writing the data in the cache memory into the
external volume is displayed.
Click OK if you want to execute the Delete Volume operation without
writing the data in the cache memory into the external volume. Click
Cancel if you want to cancel the operation.
As 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.
Note: As you click OK, the Delete Volume operation will be 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 is displayed. Verify the details in
the Preview dialog box.
Note: 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.
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6
Using Spreadsheets for Universal
Volume Manager Operations
To map external volumes, you may want to use spreadsheets instead of the
Storage Navigator graphical user interface (GUI). For example, when you want
to map many external volumes at a time, using the spreadsheets shortens the
operation time compared to when using the GUI. You can import the
spreadsheets directly to the storage system using the Storage Navigator
command line interface (CLI).
The following figure describes the work flow when you use spreadsheets:
To save the configurations
Prepare for using Storage Navigator CLI
To configure the system
Write spreadsheets
Verify the spreadsheets
Has any error
occurred？
Yes
No
Save the configurations
in spreadsheets
Apply the configurations
Figure 6-1
Work Flow for Using Spreadsheets
Using Spreadsheets for Universal Volume Manager Operations
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Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
This chapter describes the operation that is surrounded by the thick lines. For
detailed information about the other operations, see the Storage Navigator
User’s Guide.
Before Using Spreadsheets
Storage Navigator is required to use spreadsheets. In addition, you must use
Storage Navigator CLI (not the Configuration File Loader window) when you
perform operations on spreadsheets.
Spreadsheets must be written in the format below. Multiple operation tags and
parameters can be written in a spreadsheet.
#!Version Version number,Program product,Type,;
[Operation tag]
Parameter
Italic indicates variables that should be changed according to program
products or operations. The following table shows how you should write these
elements.
Table 6-1
Contents of a Spreadsheet
Element
Content
Version number
Program product
Type
CLI_ExternalStorage
Operation tag
Parameter
subsequent sections.
Available Types and Operation Tags
Available operation tags differ depending on the types. The version number
that you write in the spreadsheet declaration depends on the operation tags.
The following table shows the relationship among types, operation tags, and
version numbers supported by Universal Volume Manager.
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Table 6-2
Relationship Among the Types, Operation Tags, and Version
Number
Type
Operation Tag
Version
Number
Template
Get
SSID
05_02_01 ExternalStorage_Get_def.spd
ExternalGroup
MappedVolume
VolumeOperationFibre AddVolumeSetting 05_02_01 ExternalStorage_AddVolumeSetting_def_.spd
The above operation tags can be used only for Universal Volume Manager. 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
Storage Navigator User's 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 Storage Navigator User's Guide.
Saving Storage System Information
You can save the storage system information in files by specifying a
spreadsheet when you execute the CFLGET command using the Storage
Navigator CLI.
The storage system information will be saved in different files for each
operation tag. The file named "Input-file-name_Result.spd" lists all the
operation tags and the names of the files.
SSID Tag
When you write the SSID tag in a spreadsheet and execute the CFLGET
command, the SSID information will be saved in files.
Specify the GET_ALL parameter for the SSID tag, as shown below. By
specifying this parameter, the information about all the SSIDs that the local
storage system has will be saved in files.
[SSID]
GET_ALL,;
The following table shows the information that will be saved in a file when the
SSID tag is written in a spreadsheet.
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Table 6-3
Information Saved when the SSID tag is Written
Column in
Item
Content
Spreadsheet
A
B
LDKC:CU:LDEV-LDEV
SSID
The range of LDEV numbers to which the SSID is assigned.
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
CFLGET command, the information about external volume groups will be saved
in files.
Specify the GET_ALL parameter for the ExternalGroup tag, as shown below. By
specifying this parameter, the information about all the external volume
groups configured to the local storage system will be saved in files.
[ExternalGroup]
GET_ALL,;
The following table shows the information that will be saved in a file when the
ExternalGroup tag is written in a spreadsheet.
Table 6-4
Information Saved when the ExternalGroup Tag is Written
Column in
Item
Content
Spreadsheet
A
ExG
External volume group number and its sequential number.
MappedVolume Tag
When you write the MappedVolume tag in a spreadsheet and execute the
CFLGET command, the information about external volumes in the local storage
system will be saved in files.
Specify the GET_ALL parameter for the MappedVolume tag, as shown below.
By specifying this parameter, the information about all the external volumes in
the local storage system will be saved in files.
[MappedVolume]
GET_ALL,;
The following table shows the information that will be saved in a file when the
MappedVolume tag is written in a spreadsheet.
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Table 6-5
Information Saved when the MappedVolume Tag is Written
Layer
Column in
Spreadsheet
Item
Content
The first layer
Information about the external storage system.
Name of the vendor.
A
B
C
Vendor
Product
Name of the storage system.
SerialNumber
Serial number of the storage system.
Information about the external volume.
Identifier.
The second layer
A
+
B
C
D
E
PathGroup
ExG
Path group number.
External volume group number and its sequential number.
Characteristic1 Identification number of the external volume.
Device
Name of the storage system that is reported to the host by
the external volume.
F
G
H
I
Attribute
ƒ
ƒ
Normal: This volume is an external volume.
R-CMD: This volume is a remote command device.
CacheMode
InflowControl
PathMode
ƒ
ƒ
Enable: Cache mode is set to Enable.
Disable: Cache mode is set to Disable.
ƒ
ƒ
Enable: Inflow control is set to Enable.
Disable: Inflow control is set to Disable.
ƒ
ƒ
Single: The cross-subsystem paths work in the single
mode.
Multi: The cross-subsystem paths work in the multi
mode.
J
Capacity
Capacity of the external volume. This capacity is expressed
in blocks.
K
Characteristic2 Extended identification number of the external volume.
Information about the cross-subsystem paths.
The third layer
A
B
C
D
E
+
Identifier.
+
Port
WWN
LUN
Port number of the local storage system.
WWN of the external storage system.
LU number of the external volume.
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Mapping External Volumes (AddVolumeSetting Tag)
You can map external volumes to the local storage system by specifying a
spreadsheet that includes the AddVolumeSetting tag when you execute the
CFLSET command using the Storage Navigator CLI.
Write parameters required for mapping external volumes in the
AddVolumeSetting tag. Parameters must be written in a hierarchical structure
by using the "+" identifier. The following table shows the structure and
identifier of the parameters that can be set for the AddVolumeSetting tag.
Table 6-6
Structure and Identifier of AddVolumeSetting Tag Parameters
Layer
Identifier
None
Content
Description
This layer is required.
The first
layer
Information about
external volumes
and the primary
path
The second
layer
+,
Information about
alternate paths
Specifies one row for each alternate path. Up to seven
rows can be specified. It is recommended that you
specify at least one alternate path.
The 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.
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The following table shows the parameters that can be set for the
AddVolumeSetting tag.
Table 6-7
AddVolumeSetting Tag Parameters
Layer
Column Parameter
Setting
Range of
Values
Number of
Characters
in
Spread
sheet
The first layer
A
Information about external volumes and the primary path.
PathGroup Path group number.
0 to 63231
5 decimal
digits or
less
B
C
Port
Port number of the primary path.
WWN of the primary path.
1A to GR
2 digits or
less
WWN
00000000
00000000
to FFFFFFFF
FFFFFFFF
16
hexadecim
al digits
D
E
LUN
ExG
LU number set to the external volume.
0000 to
0FFF
4
hexadecim
al digits or
less
External volume group number and its
sequential number. The format should be
EGrp-VPG (for example, E16384-4096).
GrP: 1 to
16384
GrP: 5
decimal
digits or
less
VPG: 1 to
4096
VPG:4
decimal
digits or
less
F
Attribute
CLPR
ƒ
ƒ
Normal: Maps an external volume.
R-CMD: Maps a command device.
ƒ
ƒ
Normal
R-CMD
N/A
G
CLPR that is used to access the external
volume.
0 to 31
2 decimal
digits or
less
H
Emulation
Emulation type of the external volume.
Write the same characters as the emulation
type shown in Table B-2.
N/A
16
characters
or less in
ASCII
format
I
CacheMod
e
ƒ
ƒ
Enable: Sets cache mode to Enable.
Disable: Sets cache mode to Disable.
ƒ
ƒ
Enable
N/A
N/A
Disable
J
InflowCon
trol
ƒ
ƒ
Enable: Sets inflow control to Enable.
Disable: Sets inflow control to Disable.
ƒ
ƒ
Enable
Disable
The 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
less
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Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
6-7
Layer
Column Parameter
Setting
Range of
Values
Number of
Characters
in
Spread
sheet
C
WWN
WWN of the alternate path.
00000000
00000000
to FFFFFFFF
FFFFFFFF
16
hexadecim
al digits
The third layer
Information about LDEVs to be created in an external volume.
A
B
C
+
Identifier.
N/A
N/A
+
LDKC
LDKC number.
00 to 01
2
hexadecim
al digits or
less
D
E
CU
CU number.
00 to FE
00 to FF
2
hexadecim
al digits or
less
LDEV
LDEV number. Specify the LDEV number
that is not assigned to any volume.
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 Virtual LVI/LUN & Volume
Shredder User's Guide.
2
hexadecim
al digits or
less
To see whether the LDEV number can be
assigned to a volume or not, view the
LDEV dialog box of the Basic Information
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 Storage Navigator
User's Guide.
6-8
Using Spreadsheets for Universal Volume Manager Operations
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
Layer
Column Parameter
Setting
Range of
Values
Number of
Characters
in
Spread
sheet
F
Capacity
Capacity of the LDEV in blocks.
1 to
8589934592
10 decimal
digits or
less
When the emulation type is OPEN-V,
specify the value in the range of 96000
and 8589934592.
When the emulation type is other than
OPEN-V, specify one of the following:
ƒ
If the capacity of the external volume is
larger than the base LDEV capacity,
specify the base data area capacity.
ƒ
If the capacity of the external volume is
equal or smaller than the base LDEV
capacity, specify the value that is
calculated by subtracting the control
information area capacity from the
capacity of the external volume. In this
case, one LDEV will be created in the
external volume.
Also, 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 control information area
capacity.
For details on the values for each
emulation type, see Required Volume
G
SSID
SSID assigned to the range of the LDEV
numbers.
0004 to FFFE
4
hexadecim
al digits or
less
Specify the SSID written in the file that
you saved by using the SSID tag. When
you create an LDEV that does not have
any SSID, specify an SSID that is not
written in this file. For details on an SSID,
see the Virtual LVI/LUN & Volume
Shredder User's Guide.
Using Spreadsheets for Universal Volume Manager Operations
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
6-9
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
– 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
The example of a spreadsheet is as follows:
#!Version 05_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,;
6-10
Using Spreadsheets for Universal Volume Manager Operations
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
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 CCI commands to the remote command device, you can enter
these CCI commands to the command device of the external storage system
to operate the CCI in the external storage system.
Figure 7-1 shows an example. The OPEN host that is connected to the local
storage system sends the CCI commands of ShadowImage or TrueCopy 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
ShadowImage pair or the TrueCopy pair in the external storage system.
For detailed information about CCI and the command device, see the
Command Control Interface User and Reference Guide.
Open-system Host
CCI
Connected by
Open Fibre
ShadowImage Pair
Local Storage System
External Storage System
Connected by
Open Fibre
Mapped as
Remote Command Device
Remote Command
Device
Connected by
Open Fibre
Legend
: Remote command device
: Command device
: Logical device
TrueCopy Pair
: CCI commands
: Lines showing the concept of mapping.
Figure 7-1
Outline of Remote Command Device
7-2
Remote Command Devices
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
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 storage system.
– Universal Storage Platform V
– Universal Storage Platform VM
– TagmaStore Universal Storage Platform
– TagmaStore Network Storage Controller
– TagmaStore Adaptable Modular Storage
– TagmaStore Workgroup Modular Storage
– Lightning 9900V series
– Thunder 9500V series
– SANRISE Universal Storage Platform
– SANRISE Network Storage Controller
– SANRISE Adaptable Modular Storage
– SANRISE Workgroup Modular Storage
– SANRISE9900V series
– SANRISE9500V series
– H24000
– H20000
– SANRISE H12000
– SANRISE H10000
– SANRISE H1024/H128
– XP24000
– XP20000
– XP12000
– XP10000
– XP1024/XP128
• You do not need the license for Universal Volume Manager to map a
command device as a remote command device.
Remote Command Devices
7-3
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
• The remote command devices are displayed in the Device column on the
Volume Operation window as follows:
Table 7-1
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
SANRISE Universal Storage Platform
SANRISE Network Storage Controller
SANRISE9900V series
H24000
Format: "Emulation Type" + "-CM"
Example: OPEN-V-CM, OPEN-3-CM
H20000
SANRISE H12000
SANRISE H10000
SANRISE H1024/H128
XP24000
XP20000
XP12000
XP10000
XP1024/XP128
TagmaStore Adaptable Modular Storage
TagmaStore Workgroup Modular Storage
Thunder 9500V series
DF600F-CM
SANRISE Adaptable Modular Storage
SANRISE Workgroup Modular Storage
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 followings:
– Serial number
– Vendor
– Device name
Note: 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 host, see Table 7-1.
7-4
Remote Command Devices
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
• 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.
• There are following restrictions for mapping a command device as a remote
command device.
Table 7-2
Restrictions on Remote Command Device
Item
Restriction
Emulation type
OPEN-V
Number of LDEVs in an external volume
Cache mode
1
Disable
Minimum capacity
96,000 Blocks (about 47 MB)
4 TB
Maximum capacity
• The remote command device cannot be identified by the Port Discovery or
Volume Discovery of Universal Volume Manager.
• 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 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.
Remote Command Devices
7-5
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
Mapping a Command Device as a Remote Command Device
The command devices that can be mapped as remote command devices are
displayed in the Device column of the Volume Operation window as shown in
To map a command device, select a command device that can be mapped and
Using TrueCopy or Universal Replicator with Remote
Command Device
When you want to use TrueCopy or Universal Replicator with a remote
command device, you need two different kinds of ports, which are an initiator
port for TrueCopy or Universal Replicator 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 TrueCopy or Universal Replicator
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 7-2 shows 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 TrueCopy or Universal Replicator and remote command device.
For detailed information on the port block and setting the Initiator/External
MIX mode, see the LUN Manager User’s Guide.
7-6
Remote Command Devices
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
CL1-A
Initiator
Standard
CL3-A
External
Standard
CL5-A
Initiator
Standard
CL7-A
External
Standard
Port Block (All ports are in the Standard mode.)
CL1-A
CL3-A
[1-A 2nd]
External
MIX
CL5-A
CL7-A
[5-A 2nd]
External
MIX
Initiator
MIX
Initiator
MIX
Port Block (All ports are in the Initiator/External MIX mode.)
Legend
: Cable
: Ports of Standard mode
: Ports of Initiator/External MIX mode
Figure 7-2
Difference between Standard Mode and Initiator/External
MIX Mode
Figure 7-3 shows an example of using TrueCopy or Universal Replicator with
remote command device. The System 1 functions as MCU of TrueCopy or
Universal Replicator, and at the same time it functions as the local storage
system of the remote command device. the System 2 functions as RCU of
TrueCopy or Universal Replicator, and at the same time it functions as the
external storage system of the remote command device. In this case, the
setting of TrueCopy pair or Universal Replicator 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, this means that you
do not need to connect cables to each port of different port attributes.
Remote Command Devices
7-7
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
Open-system Host 1
Open-system Host 2
LAN
CCI
CCI
System 2
- RCU
System 1
- MCU
- Local Storage System
- External Storage System
Target
Port
Target
Port
Port of
Initiator/External
MIX Mode
RCU Target
Port
P-VOL
S-VOL
TrueCopy or Universal Replicator Pair
Legend
: Remote command device
: Command device
: Logical device
: Lines showing the concept of mapping
Figure 7-3
Example of Using TrueCopy or Universal Replicator 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 procedure to set the port attribute to initiator, see the TrueCopy User's
Guide or the Universal Replicator User's 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.
7-8
Remote Command Devices
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
For procedure to set the Initiator/External MIX mode, see the LUN Manager
User’s 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.
4. Map the command device as the remote command device.
Note: 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 TrueCopy or Universal Replicator 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 TrueCopy and Universal
Replicator.
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 procedure to change the setting of the port block, see the LUN Manager
User’s 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 LUN Manager User’s 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.
Remote Command Devices
7-9
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
7-10
Remote Command Devices
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
Troubleshooting
If you have a problem with the Storage Navigator computer or Storage
Navigator software, see the Storage Navigator User’s Guide for
troubleshooting information.
Table 8-1 provides general troubleshooting instructions for Universal Volume
Manager operations. If you need to call the Hitachi Data Systems Support
Table 8-1
General Troubleshooting for Universal Volume Manager
Error
Corrective Action
The Storage
Navigator
computer cannot
access the
Remove the error and retry the operation.
The reason for the error could be as follows:
ƒ
ƒ
ƒ
ƒ
The switch is off.
external volume.
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.
ƒ
ƒ
ƒ
ƒ
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
Remove the error and retry the operation. The reason for the error could be as
follows:
volume cannot
be mapped as an
internal volume
of the local
ƒ
The number of mapped volumes exceeds the maximum number (63,232)
available for the local storage system.
ƒ
There are not enough LDKC:CU:LDEV numbers available for external volume
mapping.
storage system.
The path to the
external volume
is blocked.
computer cannot access to the external volume) could also be the factor of 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 the Hitachi Data Systems Support Center.
ƒ
Confirm that the cable between the local storage system and the external
storage system is connected properly.
ƒ
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 Storage Navigator.
The path status
that requires the
reaction is
displayed in the
Mapping Path
Information
The following show the description on the path statuses that are displayed in the
Status column in the Mapping Path Information dialog box and the reactions for
them. The notes on connecting each storage system as an external storage system
are in Connecting External Storage Systems. See Connecting External Storage
Systems for settings of connection and examples of recovery procedure, and then
take corrective actions.
dialog box.
8-2
Troubleshooting
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
Error
Corrective Action
The displayed
statuses are as
follows:
Unknown
Blockade
Status: The status of the path is unknown.
Reaction: The status of the path cannot be identified. Please call
the Hitachi Data Systems Support Center.
Status: The external port is blocked.
Reaction: The external port is blocked because of the microprogram
replacement or package replacement or some other factor. Check
the status of the local storage system. If you cannot restore the
path, call the Hitachi Data Systems Support Center.
External
device
setting
changed
Status: 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.
Reaction: The port of the external storage system is recognized.
Refer to the documents for your external storage system, and check
if the operation that changes the setting information about the
mapped device has not been performed.
LDEV size
reduced
Status: The setting of the volume capacity of the external storage
system has been changed (the volume capacity was reduced).
Reaction: Check the volume capacity of the volume of the external
storage system. Execute the Delete Volume operation, and then
retry the Add Volume operation.
Not ready
Status: The reply of the external storage system was NOTREADY.
The drive of the external storage system is spinning up, or the
device of the external storage system is being formatted.
Reaction: The path cannot be used to access the external storage
system. Check the status of the external storage system. If you
cannot restore the path, call the Hitachi Data Systems Support
Center.
Illegal
request
Status: The reply of the external storage system was
ILLEGALREQUEST. The command cannot be executed to the device
of the external storage system. The data protection may be set on
the device of the external storage system.
Reaction: The port of the external storage system is recognized.
Check the setting of the external storage system. If you cannot
restore the path, call the Hitachi Data Systems Support Center.
Command
aborted
Status: The reply of the external storage system was
ABORTEDCOMMAND. An error may have occurred on the external
storage system side.
Reaction: The port of the external storage system is recognized.
Check the setting of the external storage system and the condition of
the connection (e.g., cables, switches) to the external storage
system. If you cannot restore the path, call the Hitachi Data Systems
Support Center.
Busy
Status: The external storage system is in the BUSY status.
Reaction: 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 (e.g., check if the configuration gives too
much load on the external storage system or not). If you cannot
restore the path, call the Hitachi Data Systems Support Center.
LDEV
reserved
Status: The external storage system is in the Reserve status. You
are not allowed to access the device of the external storage system
from the local storage system
Reaction: Remove the Reserve status on the device of the external
storage system.
Troubleshooting
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
8-3
Error
Corrective Action
Response
error
Status: The external storage system is in the blocked status caused
by the abnormal reply (Response). You may not be able to access
the device of the external storage system. Or data protection may be
set on the device of the external storage system.
Reaction: The port of the external storage system is recognized.
Check the setting and status of the external storage system. If you
cannot restore the path, call the Hitachi Data Systems Support
Center.
Initiator
port
Status: The port attribute of the external storage system has been
changed to the initiator port.
Reaction: Set the port attribute of the external storage system to
the target port. If you cannot restore the path, call the Hitachi Data
Systems Support Center.
Unknown
port
Status: The port attribute of the external storage system is
unknown.
Reaction: The port of the external storage system is recognized.
Check the condition of the connection (e.g., cables, switches) to the
external storage system. If you cannot restore the path, call the
Hitachi Data Systems Support Center.
Cannot
detect
port
Status: The path has been removed or the port of the external
storage system cannot be found. There is a problem with connection
to the external storage system. The following are possible causes:
- 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.
- 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.
Reaction: Check the condition of the connection to the external
storage system. If you cannot restore the path, call the Hitachi Data
Systems Support Center.
Internal
error
Status: The program error occurred. Or there is a logical
contradiction.
Reaction: Call the Hitachi Data Systems Support Center.
Timeout
Status: The processing was retried because the abnormal reply
(Response) was returned, however, the processing has been stopped
by timeout.
Reaction: The port of the external storage system is recognized.
Check the condition of the connection (e.g., cables, switches) to the
external storage system. If you cannot restore the path, call the
Hitachi Data Systems Support Center.
Target
error
Status: An error such as the blockade of the controller has been
found in the port of the external storage system
Reaction: Check the status of the ports of the external storage
system. If you cannot restore the path, call the Hitachi Data Systems
Support Center.
8-4
Troubleshooting
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
Error
Corrective Action
Unavailabl Status: The reply of the external storage system was Unavailable.
e
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 has been changed, the status of the path becomes Normal.
Reaction: If the path is not changed over properly, check the status
of the external storage system. If you cannot restore the path, call
the Hitachi Data Systems Support Center.
Backoff
Status: The reply of 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.
Reaction: If the status cannot be recovered from the error, the path
status is changed to another status. React to the new path status
after the status is changed. If you cannot restore the path, call the
Hitachi Data Systems Support Center.
The volume in
the external
Remove the error and retry the operation. The reason for the error could be as
follows:
storage system
cannot be found
even after the
Port Discovery or
the Volume
ƒ
ƒ
Storage Navigator is not in the Modify mode.
Port of the local storage system and the port of the external storage system are
not connected.
ƒ
ƒ
ƒ
Port security is set on the external storage system.
Discovery was
performed.
The device in the external storage system is not in the Normal status.
External storage system is not connected to the port set to External of the local
storage system.
ƒ
ƒ
ƒ
The capacity is not enough (capacity is less than about 38 MB (77,760 blocks) .
The cable for the switch is not connected appropriately.
The zoning for the switch is not set appropriately.
If none of the above 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.
The external
volume is
blocked.
Remove the error and retry the operation.
The reason for the error could be as follows:
ƒ
ƒ
ƒ
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 Refresh (
) command on the Storage Navigator main window while the
Status: Enable button is displayed. 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 the Hitachi Data Systems
Support Center.
Troubleshooting
8-5
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
Error
Corrective Action
The Disconnect
Subsystem
command or the
Disconnect
Volume
command is
executed, but
the progress
status
Click Refresh (
) command on the Storage Navigator main window while the
Status: Enable button is displayed. If the progress information about the Cache
Destage status is not updated even though you have updated the information, call
the Hitachi Data Systems Support Center.
Note: 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.
information is
not updated.
The message of
“INTERVENTION
REQUIRED” is
issued to the
mainframe host
as the device
status.
The device status is currently changing. Please wait for a while, and then check the
device status again. When the transition of the device status has completed
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 volume is
The message of
“DEVICE ERROR”
is issued to the
mainframe host
as the device
status.
corrective action.
Calling the Hitachi Data Systems Support Center
If you need to call the Hitachi Data Systems Support Center, make sure to
provide as much information about the problem as possible, including:
• The circumstances surrounding the error or failure.
• The exact content of any error messages displayed on the host system(s).
• The exact content of any error messages displayed by Storage Navigator.
• The Storage Navigator configuration information (use the FD Dump Tool).
• The service information messages (SIMs), including reference codes and
severity levels, displayed by Storage Navigator.
The Hitachi Data Systems customer support staff is available 24 hours/day,
seven days a week. If you need technical support, please call:
• United States: (800) 446-0744
• Outside the United States: (858) 547-4526
8-6
Troubleshooting
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
A
Connecting External Storage Systems
TagmaStore AMS/WMS Storage System
System Parameters for Connecting TagmaStore
AMS/WMS Storage System
The table below explains whether to specify system parameters when making
settings on ports on the TagmaStore AMS and WMS storage systems.
Note: When you connect a TagmaStore AMS or WMS storage system, use LUN
Manager to set the data transfer speed of the external port which you use 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.
Table A-1
System Parameter Settings (AMS/WMS)
Window Names
Parameters
Start Attribute
Parameter Settings
Boot Options
Single Mode
Specify this parameter when AMS/WMS storage
system is in the one controller configuration.
Dual Active Mode
Delay Planned Shutdown
Drive blocking mode
Vendor ID
Specify this parameter when AMS/WMS storage
system is in the two controller configuration.
You can either specify this parameter or omit
specifying this parameter.
You can either specify this parameter or omit
specifying this parameter.
Keep this parameter as HITACHI (default), and do
not change.
Product ID
Keep this parameter as DF600F (default), and do
not change.
ROM Microprogram Version
You can either specify this parameter or omit
specifying this parameter.
Connecting External Storage Systems
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
A-1
Window Names
Parameters
Parameter Settings
RAM Microprogram Version
You can either specify this parameter or omit
specifying this parameter.
System
Parameter
Option
You can either specify this parameter or omit
specifying this parameter.
Operation if the processor
failure occurs
Specify this parameter to Reset of occurred.
WEB Title
You can either specify this parameter or omit
specifying this parameter.
Write and verify mode
Port Option
Set this parameter to ON.
Port Options
You can either specify this parameter or omit
specifying this parameter.
Host Connection
Mode
Host Connection Mode 1
Host Connection Mode 2
Set this parameter to Standard Mode.
Do not specify any parameters.
Note: Do not specify HISUP OFF mode, either.
Note: You can either specify or omit any other parameters.
Relationship between Serial Number and AMS/WMS Model
When the external storage system is TagmaStore AMS or WMS, you can
identify the storage system model from the serial number displayed in the
Serial Number column in the Volume Operation window.
The following table describes the relationship between serial number displayed
in the Serial Number column and the storage system model.
Table A-2
Relationship between Serial Number and AMS/WMS Model
Storage System
Displayed Serial Number
77XXXXXX
Model
AMS
AMS 1000
AMS 500
AMS 200
WMS 100
75XXXXXX
73XXXXXX
71XXXXXX
WMS
Note: In serial numbers, "X" is an arbitrary number or character.
A-2
Connecting External Storage Systems
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
Relationship between WWN of Port and Controller
(AMS/WMS)
When the external storage system is TagmaStore AMS or WMS, you can
identify the controller (controller 0 or controller 1) from the WWN of the port.
The following table describes the relationship between WWN of port and
controller.
Table A-3
Relationship between WWN of Port and Controller
(AMS/WMS)
Model
Controller
Controller 0
WWN of Port
AMS
200
XXXXXXXXXXXXXXX0
Controller 1
XXXXXXXXXXXXXXX1
WMS
100
AMS
500
Controller 0
XXXXXXXXXXXXXXX0
XXXXXXXXXXXXXXX1
Controller 1
Controller 0
XXXXXXXXXXXXXXX2
XXXXXXXXXXXXXXX3
AMS
1000
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 has the identical value.
Connecting External Storage Systems
A-3
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
Path Status and Examples of 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 the following table to recover the path status. If you cannot
restore the path, call the Hitachi Data Systems Support Center (see Calling the
Table A-4
Path Status and Examples of Recovery Procedure (AMS/WMS)
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 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
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 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.
request or
Response
error
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:
ƒ
ƒ
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.
ƒ
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.
If host group security is enabled, disable host group security using LUN Manager.
A-4
Connecting External Storage Systems
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
Thunder 9500V Storage System
System Parameters for Connecting Thunder 9500V
The table below explains whether to specify system parameters when making
settings on ports on the Thunder 9500V storage system.
Table A-5
System Parameter Settings (9500V)
Window Names
Parameters
Parameter Settings
System Startup
Settings
Start Attribute
Single Mode
Specify this parameter when Thunder 9500V
storage system is in the one controller
configuration.
Dual Active Mode
Specify this parameter when 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 this parameter as HITACHI (default),
and do not change.
Product ID
Keep this parameter as DF600F (default),
and do not change.
ROM Microprogram Version
RAM Microprogram 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)
You can either specify this parameter or
omit specifying this parameter.
Connecting External Storage Systems
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
A-5
Window Names
Parameters
LIP Reset Mode
Parameter Settings
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
Host Connection Mode 1
Set this parameter to ON.
Host Connection
Mode
Set this parameter to Standard Mode.
Host Connection Mode 2
Specify HISUP Mode.
Note: Do not specify any other parameters.
Note: 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 Serial Number and 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.
The following table describes the relationship between the serial number
displayed in the Serial Number column and the storage system model.
Table A-6
Relationship between Serial Number and 9500V Model
Displayed Serial Number
Model
D600XXXX
D60JXXXX
D60HXXXX
9570V, 9520V
9530V
9580V, 9585V
Note: In serial numbers, "X" is an arbitrary number or character.
Relationship between WWN of Port and Controller(9500V)
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.
A-6
Connecting External Storage Systems
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
The following table describes the relationship between WWN of port and
controller.
Table A-7
Relationship between WWN of Port and Controller (9500V)
Model
Controller
Controller 0
WWN of Port
9570V
9530V
9520V
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 has the identical value.
Connecting External Storage Systems
A-7
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
Path Status and Examples of Recovery Procedure
(9500V)
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, call the Hitachi Data Systems Support Center (see Calling the
Table A-8
Path Status and Examples of Recovery Procedure (9500V)
Path Status
Examples of Recovery Procedure
External device setting
changed
Settings of the LU paths may have been changed by LUN Management.
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 LU
operation and perform the Add LU operation again.
The access attribute of the volume may have been changed by Open LDEV
Guard. 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 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 Open LDEV
Guard. 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:
ƒ
ƒ
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.
ƒ
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 Management.
The host group security may have been enabled by LUN Management.
Check if the host group security is enabled or not. If the host group security
is enabled, disable the host group security.
A-8
Connecting External Storage Systems
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
USP V/VM Storage System
When you connect 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 Recovery Procedure
(USP V/VM)
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, call the Hitachi Data Systems Support Center (see Calling the
Table A-9
Path Status and Examples of Recovery Procedure (USP V/VM)
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:
ƒ
ƒ
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.
ƒ
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.
Connecting External Storage Systems
A-9
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
TagmaStore USP/NSC Storage System
When you connect 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 When a Volume of More
Than 2 TB Is Used (USP/NSC)
If a volume, which has the capacity of more than 2TB, is mapped as an
external volume, host mode option No. 24 must be enabled. If No. 24 is
disabled, a volume, which has the capacity of more than 2TB, cannot be
mapped as an external volume. For how to set the host mode option, see the
LUN Manager User’s Guide of TagmaStore USP or NSC storage system.
Path Status and Examples of Recovery Procedure
(USP/NSC)
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, call the Hitachi Data Systems Support Center (see Calling the
Table A-10 Path Status and Examples of Recovery Procedure (USP/NSC)
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 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 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
Response error
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.
A-10
Connecting External Storage Systems
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
Path Status
Examples of Recovery Procedure
Cannot detect
port
There is a problem with connection to the external storage system. The possible
causes are:
ƒ
ƒ
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.
ƒ
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.
Lightning 9900V Storage System
When you connect 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 Recovery Procedure (9900V)
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, call the Hitachi Data Systems Support Center (see Calling the
Table A-11 Path Status and Examples of Recovery Procedure (9900V)
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 LU operation and perform the
Add LU operation again.
The access attribute of the volume may have been changed by Open LDEV
Guard. Check the access attribute of the volume. If the volume is protected by
the access attribute, release the protection.
Illegal request or 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, or some other copy
Response error
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 Open LDEV
Guard. Check the access attribute of the volume. If the volume is protected by
the access attribute, release the protection.
Connecting External Storage Systems
A-11
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
Path Status
Examples of Recovery Procedure
Cannot detect
port
There is a problem with connection to the external storage system. The possible
causes are:
ƒ
ƒ
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.
ƒ
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 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 you connect 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 Recovery Procedure (9900)
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, call the Hitachi Data Systems Support Center (see Calling the
Hitachi Data Systems Support Center).Table A-12Path Status and Examples of
Recovery Procedure (9900)
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 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 ShadowImage, TrueCopy, 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.
A-12
Connecting External Storage Systems
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
Path Status
Examples of Recovery Procedure
Cannot detect port
There is a problem with connection to the external storage system. The
possible causes are:
ƒ
ƒ
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.
ƒ
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 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 you connect a 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.
Note: 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 setting of mapping and then change the microcode
version to the one that supports the SVS200 storage system.
Connecting External Storage Systems
A-13
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
Path Status and Examples of Recovery Procedure (SVS200)
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, call the Hitachi Data Systems Support Center (see Calling the
Table A-13 Path Status and Examples of Recovery Procedure (SVS200)
Path Status
Examples of Recovery Procedure
External device
setting changed
Settings of the LU paths may have been changed by LUN Management. 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 LU operation and perform the
Add LU operation again.
The access attribute of the volume may have been changed by LUN Security XP
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 Business Copy XP, Continuous Access XP,
Continuous Access XP - Journal, 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 LUN Security XP
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 connection to the external storage system. The possible
causes are:
ƒ
ƒ
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.
ƒ
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 Management.
The LUN security may have been enabled by LUN Management. Check if the
LUN security is enabled or not. If the LUN security is enabled, disable the LUN
security.
A-14
Connecting External Storage Systems
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
EVA Storage System
System Parameter Settings for Connecting EVA Storage
System
When you connect an EVA storage system as an external storage system, set
the system parameters of the EVA storage system according to the following
table. For the system parameters that are not in the following table, refer to
the manuals of the EVA storage system and set the parameters appropriately
for the connecting configuration.
Table A-14 System Parameter Settings for Connecting EVA Storage
System
Parameter
Add a Host
Parameter Setting
Host OS
Windows
Identifying Logical Volume of EVA Storage System (Using
Characteristic 2)
When the connected external storage system is an EVA storage system, LUNs
are displayed as Characteristic 1 in the Universal Volume Manager windows.
If you search for the logical volumes specifying the WWN indicating the EVA
1 and LUN 2 are found for 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 Characteristic 1.
referring to Characteristic 2 in the Universal Volume Manager windows. The
first 32 characters of Characteristic 2 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.
Connecting External Storage Systems
A-15
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
EVA
HostGroup-1
Local Storage System
World Wide LUN Name
600508b4 001028cb
00005000 011d0000
LUN 1
LUN 2
Switch
External
Port 1
EVA
Port A
World Wide LUN Name
600508b4 001028cb
00005000 01200000
HostGroup-2
LUN 1
External
Port 2
EVA
Port B
World Wide LUN Name
600508b4 001028cb
00005000 01230000
World Wide LUN Name
600508b4 001028cb
00005000 012c0000
LUN 2
Figure A-1
Configuration Example for which Logical Volumes Cannot be
Identified only by Characteristic
A-16
Connecting External Storage Systems
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
Note on Behavior of Alternate Path when EVA Storage
System is Connected
When an EVA storage system is connected, the behavior of the alternate path
differs depending on the microprogram version of the EVA storage system.
If the storage system type is EVA3000/5000, the behavior of the alternate
path differs between the EVA storage systems of the microprogram version
4.000 or later and the EVA storage systems of the earlier microprogram
versions.
If you want to replace the microprogram of the EVA storage system, check
whether the behavior of the alternate path changes as a result of changing the
microprogram version. If the behavior of the alternate path changes, perform
the Delete Volume operation of Universal Volume Manager to release the
setting of mapping the EVA storage system volume before you actually replace
the microprogram.
Refer to the EVA storage system documentation for how the behavior of the
alternate path changes.
System Parameter Settings for Connecting Sun StorEdge
6120/6320
When you connect a Sun StorEdge 6120/6320 as an external storage system,
set the system parameters of the Sun StorEdge 6120/6320 according to the
following table. For the system parameters that are not in the following table,
refer to the documentation of the Sun StorEdge 6120/6320 and set the
parameters appropriately for the connecting configuration.
Table A-15 System Parameter Settings for Connecting Sun StorEdge
6120/6320
Parameter
Parameter Setting
port host
SUN
Connecting External Storage Systems
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
A-17
System Parameter Settings for Connecting Sun StorageTek
FlexLine 380
When you connect a Sun StorageTek FlexLine 380 as an external storage
system, set the system parameters of the Sun StorageTek FlexLine 380
according to the following table. For the system parameters that are not in the
following table, refer to the documentation of the Sun StorageTek FlexLine 380
and set the parameters appropriately for the connecting configuration.
Table A-16 System Parameter Settings for Connecting Sun StorageTek
FlexLine 380
Parameter
host type
Parameter Setting
Windows Non-clustered (DMP Support)
System Parameter Settings for Connecting Sun StorageTek
2540
When you connect a Sun StorageTek 2540 as an external storage system, set
the system parameters of the Sun StorageTek 2540 according to the following
table. For the system parameters that are not in the following table, refer to
the documentation of the Sun StorageTek 2540 and set the parameters
appropriately for the connecting configuration.
Table A-17 System Parameter Settings for Connecting Sun StorageTek
2540
Parameter
host type
Parameter Setting
Windows 2K non Clustered DMP
Cross-Subsystem Paths for Connecting Sun StorageTek
V2X2
When you connect 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.
A-18
Connecting External Storage Systems
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
System Parameter Settings for Connecting EMC CLARiiON
CX600
When you connect an EMC CLARiiON CX600 as an external storage system, set
the system parameters of the EMC CLARiiON CX600 according to the following
table. For the system parameters that are not in the following table, refer to
the documentation of the EMC CLARiiON CX600 and set the parameters
appropriately for the connecting configuration.
Table A-18 System Parameter Settings for Connecting EMC CLARiiON
CX600
Parameter
Parameter Setting
CLARiiON Open
Initiator Type
Failover Mode
2
System Parameter Settings for Connecting IBM DS4000
Series
When you connect an IBM DS4000 series as an external storage system, set
the system parameters of the IBM DS4000 series according to the following
table. For the system parameters that are not in the following table, refer to
the documentation of the IBM DS4000 series and set the parameters
appropriately for the connecting configuration.
Table A-19 System Parameter Settings for Connecting IBM DS4000 Series
Parameter
host type
Parameter Setting
When alternate paths are connected to different clusters on the
DS4000 series side:
Linux
Non-Hitachi Storage Systems
Generally, when you connect a non-Hitachi storage system as the external
storage system, the non-Hitachi 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.
Connecting External Storage Systems
A-19
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
A-20
Connecting External Storage Systems
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
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.
How to Figure Out 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 emulation type, see Table B-2.
• 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
Required Volume Capacity for each Emulation Type
B-1
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
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 have the base
LDEV capacity. Because the OPEN-V emulation type supports 4TB 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
volume of each emulation type. For detailed information about the volume
capacity for each emulation type, see Table B-3.
Table B-1
Maximum Usable Capacity of External Volume
Emulation Type
Maximum Usable Capacity of External Volume
OPEN-V
4 TB (8,589,934,592 blocks)
OPEN emulation type other than
OPEN-V
767.99GB (1,610,612,640 blocks)
3380 mainframe emulation type
3390 mainframe emulation type
767.99GB (1,610,612,640 blocks)
927.99GB (1,946,156,940 blocks)
Figure B-1 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 B-2 shows how to figure out the volume capacity using the example of
the OPEN-3 case.
B-2
Required Volume Capacity for each Emulation Type
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
Control Information
Area Capacity
Minimum LDEV
Capacity
Minimum Data
Area Capacity
Base Data Area
Capacity
Base LDEV
Capacity
Figure B-1
Idea of LDEV Capacity
External Volume
Mapped External
Volume
LDEVs of
Mapped External Volume
4,818,240 (Blocks)
2,410,612,640 (Blocks)
334 LDEVs
1,610,612,640 (Blocks)
1,320,480 (Blocks)
When the capacity of the external volume is 2,410,612,640 (Blocks), and
this external volume is mapped with OPEN-3 emulation type,
800,000,000 (Blocks) of the volume cannot be used, because the
maximum volume of the OPEN-3 is 1,610,612,640 (Blocks).
800,000,000 (Blocks)
1,320,480
And
(Blocks) of the mapped external volume becomes the
free space because the maximum number of LDEVs of base capacity
that can be defined with the OPEN-3 emulation type is 334. The free
space can be used if you set it using the VLL function.
Figure B-2
Example of How to Figure Out the Volume Capacity (In the
Case of OPEN-3)
Required Volume Capacity for each Emulation Type
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
B-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 capacity for each emulation type are listed in the Table B-2.
For the OPEN-L emulation 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 listed in the Table B-3. For the
OPEN-L emulation type, the base LDEV capacity and the 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.
Table B-2
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
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
Cylinders
3,339
Blocks
10,080
Cylinders
3380-3
7
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
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
10,080
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
7
7
7
7
3380-KA
3380-KB
3380-KC
3390-3
7
7
7
6
3390-3A
3390-3B
3390-3C
3390-3R
3390-9
6
6
6
6
25
25
3390-9A
B-4
Required Volume Capacity for each Emulation Type
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
Emulation
Type
Minimum Data Area
Capacity
Base Data Area Capacity
Control Information Area
Capacity
3390-9B
3390-9C
3390-L
87,000
50
50
50
50
50
50
50
50
50
50
-
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
10,017
10,017
32,760
32,760
32,760
32,760
65,520
65,520
65,520
65,520
-
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
25
25
23
23
23
23
53
53
53
53
-
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
3390-LA
3390-LB
3390-LC
3390-M
3390-MA
3390-MB
3390-MC
OPEN-3
OPEN-8
OPEN-9
OPEN-E
OPEN-L
-
14,351,040
14,423,040
28,452,960
71,192,160
-
-
-
-
-
-
-
-
71,192,16
0
-
-
-
OPEN-V
96,000
-
-
-
0
-
Table B-3
Volume Capacity Information on Each Emulation Type
Emulation
Type
Base LDEV Capacity
Minimum LDEV
Capacity
Maximum Capacity of
External Volume
Maximum
Number
of
Blocks
Cylinders
Blocks
Cylinders
Blocks
Cylinders
LDEVs*
3380-3
4,818,240
3,346
82,080
82,080
82,080
82,080
82,080
82,080
82,080
82,080
97,440
57
57
57
57
57
57
57
57
56
1,610,612,64
0
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
334
334
334
334
420
420
420
420
334
3380-3A
3380-3B
3380-3C
3380-K
4,818,240
4,818,240
4,818,240
3,833,280
3,833,280
3,833,280
3,833,280
5,820,300
3,346
3,346
3,346
2,662
2,662
2,662
2,662
3,345
1,610,612,64
0
1,610,612,64
0
1,610,612,64
0
1,610,612,64
0
3380-KA
3380-KB
3380-KC
3390-3
1,610,612,64
0
1,610,612,64
0
1,610,612,64
0
1,946,156,94
0
Required Volume Capacity for each Emulation Type
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
B-5
Emulation
Type
Base LDEV Capacity
Minimum LDEV
Capacity
Maximum Capacity of
External Volume
Maximum
Number
of
Blocks
Cylinders
Blocks
Cylinders
Blocks
Cylinders
LDEVs*
3390-3A
3390-3B
3390-3C
3390-3R
3390-9
5,820,300
3,345
97,440
56
56
56
56
75
75
75
75
73
73
73
73
103
103
103
103
-
1,946,156,94
0
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
-
334
334
334
334
111
111
111
111
34
5,820,300
5,820,300
5,820,300
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
-
97,440
1,946,156,94
0
97,440
1,946,156,94
0
97,440
1,946,156,94
0
17,473,08
0
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
1,946,156,94
0
3390-9A
3390-9B
3390-9C
3390-L
17,473,08
0
1,946,156,94
0
17,473,08
0
1,946,156,94
0
17,473,08
0
1,946,156,94
0
57,042,42
0
1,946,156,94
0
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
57,042,42
0
1,946,156,94
0
34
57,042,42
0
1,946,156,94
0
34
57,042,42
0
1,946,156,94
0
34
114,097,0
20
1,946,156,94
0
17
114,097,0
20
1,946,156,94
0
17
114,097,0
20
1,946,156,94
0
17
114,097,0
20
1,946,156,94
0
17
4,818,240
1,610,612,64
0
334
111
111
56
14,389,92
0
-
110,880
110,880
99,360
-
1,610,612,64
0
-
14,461,92
0
-
-
1,610,612,64
0
-
28,480,32
0
-
-
1,610,612,64
0
-
71,202,24
0
-
71,202,2
40
-
1,610,612,64
0
-
22
-
-
96,000
-
8,589,934,59
2
-
1
B-6
Required Volume Capacity for each Emulation Type
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
* This number refers to the number of LDEVs when an external volume with
maximum capacity is mapped.
Required Volume Capacity for each Emulation Type
B-7
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
B-8
Required Volume Capacity for each Emulation Type
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
C
Adjusting Volume Capacities for Pairs
When you create a pair, the capacity of S-VOL must be the same as that of
P-VOL. To set a desired volume to a pair, you may need to adjust the capacity
of volume. This section describes the procedure to adjust the volume capacity.
When copying data from an external storage system (when you want to use an
external volume as P-VOL)
For “A”, “B”, and “C” in the following description, see Figure C-1.
To adjust the capacity of the USP V/VM volume to create a pair:
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 USP V/VM 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 USP V/VM volume (C) which has the 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 USP V/VM volume (C) using
the VLL function. For the VLL function, see the Virtual LVI/LUN and Volume
Shredder User's Guide.
Adjusting Volume Capacities for Pairs
C-1
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
Notes:
• 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 Universal Volume
Manager.
• If you want to create a TrueCopy pair with a volume of Lightning 9900V
series storage system or Lightning 9900C series storage system, 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 a
TrueCopy pair.
4. Create a pair.
Step1
Step 4
Step 3
Step 2
Create Pair
Mapped External
Volume (B)
Select a volume that has the
same capacity as volume (B),
or select a volume that has the
Copy Destination
Volume (C)
External Volume(A)
bigger capacity than the volume (B).
Make CV that has the same capacity
as the volume (B), if you have
selected volume (C) that is bigger
than the volume (B).
Figure C-1
Copying Data from External Storage System (Using an
External Volume as P-VOL)
When copying data to an external storage system (when you want to set an
external volume as S-VOL)
For “A”, “B”, and “C” in the following description, see Figure C-2.
To adjust the capacity of the external volume to create a pair:
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).
C-2
Adjusting Volume Capacities for Pairs
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
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.
Step1
Step 2
Step 3
Create Pair
Mapped External
Volume (B)
Make CV that has the
Copy Source
Volume
External Volume (A)
same capacity as the
volume (C) using the
VLL function.
Figure C-2
Copying Data to External Storage System (Setting an
External Volume as S-VOL)
Adjusting Volume Capacities for Pairs
C-3
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
C-4
Adjusting Volume Capacities for Pairs
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
Acronyms and Abbreviations
AMS
adaptable modular storage
ATA
Advanced Technology Attachment standard
CHA
CV
channel adapter
custom-sized volume
ESCON® Enterprise System Connection (IBM trademark for optical channels)
ExG
FICON
GB
external volume group
fibre connection
hard disk drive
HDD
IBM®
KB
International Business Machines
LDEV
LDKC
LU
logical device
logical disk controller
logical unit
LUN
logical unit number
MB
MCU
main control unit
MIH
missing interrupt handler
OEM
OLTR
original equipment manufacturer
online transaction processing
PB
PC
personal computer
PCB
P-VOL
printed circuit board
primary volume
RCU
remote control unit
SATA
SIM
serial ATA
service information message
Acronyms and Abbreviations
Acronyms-1
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
SSID
SVP
SVS
S-VOL
TB
storage subsystem ID
service processor
Storage Virtualization System
secondary volume
USP
Universal Storage Platform
VDEV
VLL
VMA
VOL
virtual device
Virtual LVI/LUN
volume management area
volume
WWN
World Wide Name
Acronyms-2
Acronyms and Abbreviations
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
Index
A
O
Attributes
operation tags
AddVolumeSetting, 6-8
ExternalGroup, 6-6
MappedVolume, 6-7
SSID, 6-6
list of emulation type, 2-9
B
Block management, ExG, 2-9
P
C
Path Operation Window, 4-12
Port Operation Tree, 4-20
Port Operation Window, 4-19
Preview, 4-10
Cache
logical partition, 2-10
memory, 2-10
Channels
escon or ficon, 2-19
Concept, 2-3
R
RCU Target, 4-21
D
S
Destaging data, 2-10
spreadsheets
example, 6-11
mapping external volumes, 6-8
operation tags, 6-5
saving storage system information, 6-6
types, 6-5
E
Emulation, OPEN-V, 2-20
External Port, 2-8
external storage system, 2-2
External volume
Status
group, 2-9
cross-subsystem path, 4-16
Disable button, 4-2
Enable button, 4-2
migrate existing data, 2-9
External Volume Group, 2-9
Support Center, Hitachi Data Systems, 8-6
System Requirements, 3-2
I
Initiator, 4-21
T
M
Target, 4-21
Mainframe volumes, 2-19
mapping, 2-2
Mode
U
Universal Volume Manager requirements, 3-5
cross-subsystem path, 2-11
multi, 2-11
V
single, 2-11
volume management area, 3-11
Volume Operation Window, 4-2
Index
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
Index-1
Index-2
Index
Hitachi Universal Storage Platform V/VM Universal Volume Manager User’s Guide
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