®
Intel Storage System
SSR212PP
Based on EMC AX150® Technology
User Guide
Intel Order Number: D59966-001
Revision 1.0
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Safety Information
Important Safety Instructions
Read all caution and safety statements in this document before performing any of the
instructions. See also Intel Server Boards and Server Chassis Safety Information on the
¤
Wichtige Sicherheitshinweise
Lesen Sie zun chst s mtliche Warnund Sicherheitshinweise in diesem Dokument, bevor
Sie eine der Anweisungen ausf hren. Beachten Sie hierzu auch die Sicherheitshinweise zu
¤
Intel-Serverplatinen und Servergeh usen auf der Intel Server Deployment Toolkit CD
Consignes de sécurité
Lisez attention toutes les consignes de s curit et les mises en garde indiqu es dans ce
document avant de suivre toute instruction. Consultez Intel Server Boards and Server
¤
Chassis Safety Information sur le Intel Server Deployment Toolkit CD ou bien rendez-
Instrucciones de seguridad importantes
Lea todas las declaraciones de seguridad y precauci n de este documento antes de realizar
cualquiera de las instrucciones. Vea Intel Server Boards and Server Chassis Safety
¤
Information en el Intel Server Deployment Toolkit CD y/o en
Intel Server Boards and Server Chassis Safety Information
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Warnings
Heed safety instructions: Before working with your server product, whether you are
using this guide or any other resource as a reference, pay close attention to the safety
instructions. You must adhere to the assembly instructions in this guide to ensure and
maintain compliance with existing product certifications and approvals. Use only the
described, regulated components specified in this guide. Use of other products /
components will void the UL listing and other regulatory approvals of the product and will
most likely result in noncompliance with product regulations in the region(s) in which the
product is sold.
System power on/off: The power button DOES NOT turn off the system AC power. To
remove power from system, you must unplug the AC power cord from the wall outlet.
Make sure the AC power cord is unplugged before you open the chassis, add, or remove
any components.
Hazardous conditions, devices and cables: Hazardous electrical conditions may be
present on power, telephone, and communication cables. Turn off the server and
disconnect the power cord, telecommunications systems, networks, and modems attached
to the server before opening it. Otherwise, personal injury or equipment damage can
result.
Electrostatic discharge (ESD) and ESD protection: ESD can damage disk drives,
boards, and other parts. It is recommended that you perform all procedures in this chapter
only at an ESD workstation. If one is not available, provide some ESD protection by
wearing an antistatic wrist strap attached to chassis ground any unpainted metal surface on
your server when handling parts.
ESD and handling boards: Always handle boards carefully. They can be extremely
sensitive to ESD. Hold boards only by their edges. After removing a board from its
protective wrapper or from the server, place the board component side up on a grounded,
static free surface. Use a conductive foam pad if available but not the board wrapper. Do
not slide board over any surface.
Installing or removing jumpers: A jumper is a small plastic encased conductor that slips
over two jumper pins. Some jumpers have a small tab on top that you can grip with your
fingertips or with a pair of fine needle nosed pliers. If your jumpers do not have such a tab,
take care when using needle nosed pliers to remove or install a jumper; grip the narrow
sides of the jumper with the pliers, never the wide sides. Gripping the wide sides can
damage the contacts inside the jumper, causing intermittent problems with the function
controlled by that jumper. Take care to grip with, but not squeeze, the pliers or other tool
you use to remove a jumper, or you may bend or break the pins on the board.
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Important Safety Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii
Wichtige Sicherheitshinweise . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iii
List of Figures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ix
Planning Your Fibre Channel Storage System Configuration. . . . . . . . . . . . . . . . . . . . . . . . 1
Storage System Disk Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Installing a Fibre Channel Storage System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Terminology. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Before You Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
The Installation Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Planning Your iSCSI Storage System Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
iSCSI Configuration Rules. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Storage System Disk Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40
iSNS Server Worksheet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 45
iSCSI CHAP Authentication Worksheets. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47
Installing an iSCSI Storage System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Terminology. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51
Before You Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 52
The Installation Procedure. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54
Handling Field-Replaceable Units (FRU) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Power issues and FRUs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 59
Installing HBAs in the Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 61
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Installing PowerPath on the Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Installing PowerPath on a Windows Server. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63
Installing PowerPath on a Linux Server. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64
Installing PowerPath iSCI for Windows 2003 Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Installing PowerPath iSCSI for Windows 2003 Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71
Installing the Navisphere Server Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Installing the Navisphere Server Utility on a Windows Server. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75
Installing the Navisphere Server Utility on a Linux Server. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 76
Unpacking the SSR212PP-Series Storage System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77
Installing the SSR212PP-Series Storage System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79
Installing a Second Power Supply . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Installing a Disk Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87
Connecting AC Power to a Single-SP Storage System . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Powering the Storage System Down. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 94
Connecting AC Power to a Dual-SP Storage System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95
Powering the Storage System Down. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Connecting the Management Ports to the LAN . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99
Installing the Navisphere Storage System Initialization Utility . . . . . . . . . . . . . . . . . . . . . 103
Changing the Management Network and Account Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 106
Changing the Management Network and Account Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 109
Shutting the Storage System Down. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Shutting the Storage System Down with Navisphere Express . . . . . . . . . . . . . . . . . . . . . . . . . . . 111
Connecting a Fibre Channel Storage System to the Server . . . . . . . . . . . . . . . . . . . . . . . 113
Handling Optical Cables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Cabling the Storage System to the Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 113
Connecting iSCSI Ports to the Server . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 117
Registering the Server with the Storage System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 127
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Verifying HBA Registration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 128
Configuring a New Storage System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 129
Configuring an Existing Storage System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 133
Setting up CHAP Security for iSCSI Storage Systems. . . . . . . . . . . . . . . . . . . . . . . . . . . . 137
Setting Up Basic Initiator CHAP on the Storage System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Setting up Advanced Initiator CHAP on the Storage System . . . . . . . . . . . . . . . . . . . . . . . . . . . . 140
Configuring Basic CHAP on a Server with iSCSI HBAs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 148
Configuring Advanced or Mutual CHAP on a Windows Server with NICs. . . . . . . . . . . . . . . . . . . 149
Configuring Advanced or Mutual CHAP on a Server with iSCSI HBAs. . . . . . . . . . . . . . . . . . . . . 151
Configuring Advanced or Mutual CHAP on a Linux Server with NICs. . . . . . . . . . . . . . . . . . . . . . 152
Preparing Virtual Disks to Receive Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155
Verifying the Failover Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 159
Running Navisphere Express. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 163
Running the Navisphere Server Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
On Linux . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 165
Applying iSCSI Data Port Addresses to the SP Assembly . . . . . . . . . . . . . . . . . . . . . . . . 167
Restoring a Storage Processor Boot Image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 169
Using FTP to Obtain and Store an SP Boot Image . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 179
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List of Figures
Figure 1. HBA and Port Connectivity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Figure 2. SSR212PPf Storage System Rear Lights (LEDs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 3. SSR212PP2f Storage System Rear Lights (LEDs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 4. Storage System Front Lights (LEDs) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 5. SSR212PPi (Single SP) Directly Connected to One Server . . . . . . . . . . . . . . . . . . . . . . . . . . 24
Figure 6. SSR212PPi (Single SP) Directly Connected to Two Servers . . . . . . . . . . . . . . . . . . . . . . . . . 25
Figure 7. SSR212PP2i (Dual SP) Directly Connected to One Server. . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Figure 8. SSR212PP2i (Dual SP) Directly Connected to Two Servers. . . . . . . . . . . . . . . . . . . . . . . . . . 27
Figure 9. SSR212PP2i (Dual SP) Directly Connected to Four Servers . . . . . . . . . . . . . . . . . . . . . . . . . 28
Figure 12. Network-Connect SSR212PP2i (Dual SP, Dedicated LAN) . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Figure 17. SSR212PP2i (Dual SP) On a Dedicated LAN with Redundant iSCSI Paths. . . . . . . . . . . . . . 37
Figure 18. SSR212PPi/SSR212PP2i (Single SP) to a Shared Single iSCSI NIC. . . . . . . . . . . . . . . . . . . 39
Figure 24. Locating the Storage System Serial Number. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 78
Figure 26. Removing the Latch Bracket Screws, Washers, and Nuts . . . . . . . . . . . . . . . . . . . . . . . . . . . 80
Figure 27. Sliding the Chassis into the Cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 81
Figure 29. Removing a Power Supply Filler Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 83
Figure 34. Removing a Disk Filler Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 88
Figure 35. Installing a Disk Module. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 89
Figure 36. Installing and Locking the Front Bezel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90
Figure 38. Connecting AC Power to an SSR212PPf or SSR212PPi with Two Power Supplies. . . . . . . . 92
Figure 39. Securing the Power Cord with a Retention Bail. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 92
Figure 40. Storage System Front LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 93
Figure 42. Power Button and Rear LEDs on an SSR212PPf with Two Power Supplies . . . . . . . . . . . . . 94
Figure 43. Connecting the UPS Serial Cable to an SSR212PP2f or SSR212PP2i . . . . . . . . . . . . . . . . . 95
Figure 44. Connecting AC Power to an SSR212PP2f or SSR212PP2i . . . . . . . . . . . . . . . . . . . . . . . . . . 96
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Figure 46. Storage System Front LEDs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98
Figure 47. SSR212PP2f Storage System Power Button and Rear LEDs. . . . . . . . . . . . . . . . . . . . . . . . . 98
Figure 52. SSR212PPf Storage System Power Button and Light (LED) . . . . . . . . . . . . . . . . . . . . . . . . 111
Figure 53. SSR212PP2f Storage System Power Button and Light (LED) . . . . . . . . . . . . . . . . . . . . . . . 111
Figure 63. Removal of an SP Power Cord from an SSR212PP-Series Power Supply. . . . . . . . . . . . . . 172
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List of Tables
Language Locale ID. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 67
Locations of Boot and Utility Partitions and Image Repository . . . . . . . . . . . . . . . . . . . . . . 170
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Preface
About this Manual
Thank you for purchasing and using the Intel¤ Storage System SSR212PP.
This manual is written for system technicians who are responsible for installing,
troubleshooting, upgrading, and repairing this storage system. This document provides a
brief overview of the features of the product, a list of accessories or other components you
may need, troubleshooting information, and instructions on how to add and replace
components on the Storage System SSR212PP . For the latest version of this manual, see
For information about which accessories, memory, processors, and third-party hardware
have been tested and can be used with your storage system, and for ordering information
¤
for Intel products, see
Additional Information and Software
If you need more information about this product or information about the accessories that
can be used with this storage system, use the following resources. These files are available
indicated in the following table, once on this Web page, type the document or software
name in the search field at the left side of the screen and select the option to search
"SSR212PP".
For this information or software
Use this Document or Software
For in-depth technical information
about this product
Intel® Storage System SSR212PP Technical Product
Specification
If you just received this product
and need to install it
Intel® Storage System SSR212PP Quick Start User's
Guide in the product box
For virtual system tours and
interactive repair information
A link to the SMaRT Tool is available under "Other
Resources" at the right side of the screen at
2PP
Accessories and spares
Intel® Storage System SSR212PP Spares Installation
Guide
Hardware (peripheral boards,
adapter cards) and operating
systems that have been tested
with this product
Tested Hardware Operating Systems List (THOL)
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PlanningYour Fibre Channel
Storage System
1
Configuration
This document is written for administrators who are planning and setting up Fibre
Channel SSR212PP-Series storage systems. It will help you plan your management port
network and security login information and storage system disk and switch information.
For each storage system that you will configure, complete a copy of the enclosed
worksheets.
For the most current, detailed, and complete SSR212PP-Series configuration rules
and sample configurations, refer to the Tested Hardware and OS List (THOL)
document the SSR212PP support website. For information on how to access this
website, refer to the support information that shipped with your storage system.
Topics in this procedure include:
ꢀ
ꢀ
ꢀ
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Storage System Management Ports
The storage system can have two management ports, one per storage processor (SP). Plan
the network and security characteristics for each management port and record the data
below. Your network administrator should provide this information.
❑ Provide a static IP address for each storage system MANAGEMENT port.
SP A MANAGEMENT port ______.______.______.______
SP B MANAGEMENT port ______.______.______.______
Subnet mask ______.______.______.______
Default gateway ______.______.______._____
❑ Provide a username and password for your storage system.
Username ________________________
Password ________________________
Definitions
IP address
The static network IP (Internet Protocol) address (for example,
128.222.78.10) for communication with a management port of a storage
processor (SP A or SP B). There is one management port per SP.
Subnet mask The subnet mask for the local area network (LAN) to which the storage
system is connected for management, for example, 255.255.255.0.
Gateway
The gateway address for the LAN to which the storage system
management port is connected.
Username
A valid username for logging in to the management interface must start
with a letter and may contain 1 to 32 letters and numbers. The name may
not contain punctuation, spaces, or special characters. You can use
uppercase and lowercase characters. Usernames are case-sensitive. For
example, ABrown is a different username from abrown.
Password
A password for logging in to the management interface may contain 1 to
32 characters, consisting of uppercase and lowercase letters and numbers.
As with the username, passwords are case-sensitive. For example,
Azure23 differs from azure23. The password is valid only for the
username you specified.
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Fibre Channel Switch Information
If your configuration will use one or more Fibre Channel switches, complete a Switch
information worksheet for each switch. If your site will not use switches, skip this section,
Customer-installable SSR212PP-Series switches are easily configured (some are
preconfigured) so any HBA connected to switch ports other than 0 and 4 communicates
with storage processors connected to switch ports 0 or 4. With switches set up in such
"hard zones," you can connect FE 0 or FE 1 to ports 0 and 4 only, and connect HBAs only
to ports 1, 2, 3, 5, 6, or 7...16.
Customer-Installable Switch 1 Information
SP-to-switch connections
Switch port
Storage System name
SP
SP port
0
4
SP A __ or SP B __
SP A __ or SP B __
FE 0 __ or FE 1 __
FE 0 __ or FE 1 __
Switch-to-server HBA connections
Server name
Switch port
HBA name
1
2
3
4
5
6
7
Customer-Installable Switch 2 Information
SP-to-switch connections
Switch port
Storage System name
SP
SP port
0
4
SP A __ or SP B __
SP A __ or SP B __
FE 0 __ or FE 1 __
FE 0 __ or FE 1 __
Switch-to-server HBA connections
Server name
Switch port
HBA name
1
2
3
4
5
6
7
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Sample Switch Information Worksheet
A sample switch worksheet section follows. It describes one server with two HBAs and
one storage system with two SPs.
Customer-Installable Switch 1 Information
SP-to-switch connections
Switch port
Storage System name
SP
SP port
0
SP A X or SP B __
FE 0 X or FE 1 __
Storage4
Storage4
4
SP A __ or SP B X
FE 0 X or FE 1 __
Switch-to-server HBA connections
Switch port
Server name
HBA name
A0
1
nlpc5236
nlpc5236
2
A1
If you have multiple servers and two switches, you must connect the HBAs in each server
to matching switch ports; that is, with two servers, HBA a0 in each server connects to port
1 on each switch and HBA a1 in each server connects to port 2 on each switch.
Figure 1 shows two servers, each with two HBAs; two switches; and a storage system
with two SPs.
Server B
Server A
H
B
H
B
A
H
B
A
H
B
A
A
a0
a1
a0 a1
S
w
i
S
7
6
5
4
7
6
5
4
3
2
1
0
3
2
1
0
w
i
t
t
c
h
2
c
h
1
Por
Po
t 1
rt
Port 0
Port 0
1
Storage
Processor A
Storage
Processor B
Storage System
EMC3110
FIGURE 1.
HBA and Port Connectivity
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Completing the Switch Information Worksheet
On the worksheet, for each switch port, indicate the SP or HBA port to which the switch
port will connect.
SP-to-Switch Connections
Specify the SP-to-switch connections. For preconfigured switches, ports 0 and 4 are the
only two switch ports you can connect to storage system SP ports; if you will use both
switch ports, specify connections for each. These identify the SP (A or B) and the SP port
(labeled FE 0 or FE 1) that you will connect to each switch port.
Switch-to-Server-HBA Connections
Specify switch-to-server connections here for any of the switch ports (1, 2, 3, 5, 6, 7...16
in preconfigured, switches) that you will connect to a server HBA. Specify the server
name and HBA name, if you plan to the HBA using Navisphere¤ software.
If you have a second switch, specify the connections you will make to that switch.
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Storage System Disk Information
This section defines storage system disk information. Fill out the following worksheet as
described in this section.
Disk Information
Disk Pool
Virtual Disk
Number
(1- 6 or
Spare)
Disks to
Form Pool Capacity
(1-12)
Free
Capacity Space
Function (Gbytes) (Gbytes) Assigned
Server
To Be
(Gbytes) Name
Use this worksheet to list the disk pools and virtual disks that you will create. A sample
worksheet section and information about completing the columns in it follows. The
sample worksheet shows that 20- and 38-Gbyte virtual disks have been reserved for
expansion of virtual disks in the three disk pools. The storage system described in the
worksheet has 250-Gbyte disks (not 500-Gbyte disks).
Disk Information
Disk Pool
Virtual Disk
Number Disks to
Free
Space
(Gbytes)
Server
(1- 6 or
Spare)
Form Pool
(1-12)
Capacity
(Gbytes) Name
Capacity
(Gbytes)
To Be
Function
Assigned
1
0, 1, 2, 3 651 Vdisk1 Users A-N
315
20
PC1234
Vdisk2 Users O-Z 316
2
3
4, 5, 6, 7 690 Vdisk3 Database
660
440
38
20
8, 9, 10
11
460 Vdisk4
Mail
Spare
Number (1-6 or spare)
You must create at least one disk pool for virtual disks. You can create up to four RAID 5
disk pools or six RAID 1/0 disk pools, numbered 1-6, in a storage system.
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If your system has two SPs, you should create at least two disk pools, since the software
assigns one or more disk pools to each SP; that is, it assigns disk pool 1 and all its virtual
disks to SP A, disk pool 2 and all its disks to SP B, disk pool 3 and its disks to SP A, and
disk pool 4 and its disks to SP B. If you create only one pool, all virtual disks in the
storage system will be assigned to SP A.
Disks to form each pool
For each pool, specify the numbers of the disks you will include. The number of disks in a
pool determines its capacity. Generally, we suggest no more than six; the minimum is
three for RAID 5 and two for RAID 1/0 pools.
For maximum use of space on the disks, it is recommended that you do not combine disks
0 through 3 (the operating system disks) in a disk pool with other disks. Part of the space
on the operating system disks is preloaded with system data, and as a result, is not
available for your data. If you combine operating system disks in a disk pool with other
disks, each of the other disks loses space for data equal to the system data space on an
operating system disk.
If you have disks of differing capacities (for example, 250- and 500-Gbyte), always use
disks of the same capacity when creating a disk pool. If the disks have different capacities,
the software will format each disk at the smaller of the two disk sizes, wasting more than
200 Gbytes of potential storage on each larger disk.
When you create disk pools, consider making one disk a hot spare. A hot spare allows
your system to continue running with its normal performance and retain its redundancy if
a disk fails. However, because a hot spare is reserved as a replacement disk, it cannot be
used as a virtual disk. You may not want to devote an entire disk to maintaining
redundancy after a disk failure.
If you create disk pools that use all the storage system disks, no space will remain for a hot
spare. Later, if you need to create a hot spare, you must delete all the virtual disks in the
disk pool, delete the pool, create a new pool, and then create the hot spare and new virtual
disks on the new pool.
Always use a disk with the largest capacity as a hot spare. You can make any disk other
than 0, 1, 2, or 3 a hot spare. If you decide to use a hot spare, write "Spare" in the
appropriate row in column 1 and the disk number in column 2.
If you want to create disk snapshots, that is, capture point-in-time images of a virtual disk,
then you must reserve disk space for snapshot disk resources. The snapshot resource uses
this space transparently for snapshot operations, but the space must be available and not
allocated to any virtual disk. The snapshot resource requires a maximum of 20 percent of
each virtual disk whose point-in-time images you will capture, allocated in 10-Gbyte
blocks. For example, if you will take snapshots of a 290-Gbyte virtual disk, leave 60
Gbytes of disk space unused. Twenty percent of 290 is 58, but space is given in 10-Gbyte
blocks; therefore you must reserve 60 Gbytes.
From Disk 0 through Disk 11, select the disks that you want to include in the disk pool,
and select a disk to be a Hot Spare. Record this information in the Storage System disk
information worksheet.
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Disk pool capacity (Gbytes)
To calculate the size of a RAID 5 disk pool, multiply the number of disks less 1 (n-1) by
the disk capacity. For a RAID 1/0 disk pool, multiply the number of disks by the disk
capacity, then divide by 2. The following table shows the formatted capacity of
SSR212PP-Series disks.
250 Gbyte Disks
500 Gbyte disks
217 Gbytes per disk
230 Gbytes per disk
458 Gbytes per disk
445 Gbytes per disk
Disks 0-3
Disks 4-11
Name
Name the virtual disks in each disk pool. You can include up to 128 virtual disks in a disk
pool. The default virtual disk name is Virtual Disk n, where n is the sequential number,
starting with 1. However, you can substitute a more meaningful name, such as Users or
Mail. You can choose to have multiple applications on the same virtual disk.
If you will have more than one disk pool, try to place the same number of virtual disks in
each pool. Or, if you know that one or more virtual disks will be accessed often, you might
choose to place these on their own SP. For example, you might place a heavily accessed
virtual disk, such as a database, by itself on disk pool 2, attached to SP B; and place other,
lightly accessed virtual disks in disk pool 1, attached to SP A.
Function
Describe the purpose of the virtual disk.
Virtual disk capacity (Gbytes)
Determine the capacity of each virtual disk in the disk pool. The combined capacity of all
virtual disks cannot exceed the available space of the parent disk pool.
Decide how much space in the disk pool should be free space. Generally, you should leave
a modest amount of free space, such as 10 percent of the disk pool size, in each pool. Then
you can expand any of the virtual disks in the pool up to the amount of reserved space.
Free space (Gbytes)
Enter the amount of free space you want to reserve for expansion. Note this space is
available to all virtual disks in the disk pool; that is, if there are multiple virtual disks in
the pool, you can allocate part or all of the free space to one virtual disk or among several
disks.
If you do not reserve adequate free space in a disk pool, and you need more space
on a virtual disk in the pool, you must back up the data in the pool, destroy the pool,
create a new pool with a larger virtual disk, and then reload the data.
Server to be assigned (assigned servers)
You will need to specify each assigned server when you create the virtual disk. Write the
server hostname here. The maximum number of servers you can connect to one storage
system is ten.
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Installing a Fibre Channel
Storage System
2
This procedure describes the process of connecting an SSR212PP-Series Fibre Channel
storage system (SSR212PPf or SSR212PP2f) to a Microsoft Windows¤ or Linux server in
one of these methods:
ꢀ
ꢀ
through one or two Fibre Channel switches.
directly.
Terminology
host
A computer that is or will be connected to an SSR212PP-Series storage
system. This computer is called either a management host or a server,
depending on how it is or will be connected to the storage system.
management host
A host from which you manage SSR212PP-Series storage systems. It
must be on the same LAN as the storage system management ports. A
management host may also be a server.
server
A host that is already or will be connected directly to the Fibre Channel
ports on an SSR212PP-Series storage system. A management host may
also be a server.
existing server The server that is already configured for and connected to an SSR212PP-
Series storage system.
new server
A server that is not already connected to or set up for an SSR212PP-
Series storage system.
existing HBA The host bus adapter (HBA) that is already installed in a server.
new HBA The HBA that was not already installed in the server.
existing storage system
An SSR212PP-Series storage system that is already connected to a server
and configured for storage.
new storage system
A storage system that is not connected to a server or configured for
storage. It is just as it was shipped to you.
field-replaceable unit (FRU)
A storage system component that you can add to your storage system or
replace in your storage system at your site. Examples of FRUs are disks,
power supplies, memory cards, and power supplies.
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storage processor (SP)
A printed-circuit board with processors, memory modules, and control
logic that manages the I/O between the server and the disk modules.
disk pool
A set of disks with the same capacity and RAID type on which you create
one of more virtual disks.
virtual disk
A grouping of physical disk partitions into one span of disk storage space.
Each virtual disk you create is distributed equally across the disks in the
disk pool. A virtual disk looks like an individual disk to the server s
operating system.
An SSR212PPf storage system has one SP, so it is called a single-SP system. An
SSR212PP2f storage system has two SPs, so it is called a dual-SP system.
BeforeYou Start
❑ Review Tested Hardware and OS List (THOL) on the SSR212PP support website to
confirm that the following are supported:
ꢀ
ꢀ
The server hardware that will access the storage system.
The operating system version running on the server hardware.
❑ For a new storage system installation, you will need:
ꢀ
ꢀ
ꢀ
ꢀ
An SSR212PPf or SSR212PP2f storage system and the cables, rails and CDs that ship
with it.
For an SSR212PP2f (dual-SP system), an uninterruptible power supply (UPS) kit,
including the power cords, UPS serial cable, and mounting hardware.
Standard AC power for each power supply in the storage system from an independent
AC source or a cabinet/rack power distribution unit.
A CAT 5 or higher LAN cable for the management port on each SP. If your
configuration includes Fibre Channel switch(es) and you plan to use the switch
management software, you will also need a CAT 5 or higher LAN cable for each
switch.
ꢀ
The following management port network information, which the person responsible
for your network should provide:
ꢁ
ꢁ
ꢁ
Static IP address for each SP in the storage system.
Subnet mask for the LAN to which you will connect the storage system.
Default gateway for the LAN to which you will connect the storage system.
❑ For any installation, you will need:
ꢀ
A management host with a supported Internet browser for running Navisphere¤
Express and on the same network as the storage system management ports. This host
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can also be the server. For supported hosts and browsers, refer to Tested Hardware
and OS List (THOL) on the SSR212PP support website.
ꢀ
ꢀ
A Linux or Windows host that is or will be a server with Fibre Channel connections to
the storage system. This server must have all required updates, such as hot fixes or
patches, installed. For supported hosts and required updates, refer to Tested Hardware
and OS List (THOL) on the SSR212PP support website.
One or more supported QLogic¤ or Emulex¤ Fibre Channel host bus adapters
(HBAs), which may already be installed in the server. These adapters must have the
latest supported BIOS and driver. For information on supported HBAs, BIOS, and
drivers, refer to Tested Hardware and OS List (THOL) on the SSR212PP support
website.
Never mix Fibre Channel HBAs from different vendors in the same server.
ꢀ
ꢀ
An optical cable for each storage-processor (SP) Fibre Channel port you will use on
the storage system. (Each storage processor has two ports.) These cables may already
be connected for a configuration with an existing storage system or server.
A method for writing data to a virtual disk on the storage system to test the path from
a new HBA to the storage system.
The Installation Procedure
STEP 4. If you have an SSR212PP2f system, install the UPS:
CAUTION
You must install the UPS that shipped with your storage system. You cannot use
any other type of UPS.
a. Unpack the UPS and save the packaging. Verify that the cables and mounting kit were
included.
b. Install the UPS in a 19-inch NEMA-standard cabinet/rack, as described in the
documentation provided with the UPS.
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CAUTION
The UPS ships with the battery cable disconnected. Be sure to connect this cable
firmly when you install the UPS. If this cable is not securely connected, the
Replace Battery light turns on.
STEP 7. If you received a second power supply for your single-SP storage system, follow
You may receive a second power supply that looks slightly different from the
original, and/or different from the illustrations in this note. The two versions are
functionally the same.
STEP 8. If you received disks modules that are not already installed in the storage system, follow
STEP 9. If you are utilizing Fibre Channel switches, install them in the rack.
STEP 10. Connect the storage system to AC power.
ꢀ
page 91 when installing an SSR212PPf (single-SP) storage system.
ꢀ
when installing an SSR212PP2f (dual-SP) storage system.
connect the management ports.
STEP 12. Install the Navisphere Storage System Initialization Utility. See Procedure 17, "Installing
STEP 13. Verify that the storage system is powered up completely:
a. The Fault lights on each SP must be off and the Power light must be on. These lights
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Power Supply A Fault LED
Power Supply A On
Power LED
Power On/Off Button SP A Boot/Fault LED
EMC3285
FIGURE 2.
SSR212PPf Storage System Rear Lights (LEDs)
Power Supply B Fault LED
PS B On
Power Supply A Fault LED
PS A On
SP B Boot/Fault LED
Power LED
Power On/Off Button
SP A Boot/Fault LED
EMC3272
FIGURE 3.
SSR212PP2f Storage System Rear Lights (LEDs)
b. The amber system Fault light visible from the front of the storage system must be off
Fault
Power
Disk Activity
SAB2934
Lock
FIGURE 4.
Storage System Front Lights (LEDs)
Storage System to the Server," on page 113 to connect to the server.
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STEP 17. Configure the storage system.
ꢀ
ꢀ
To configure an existing storage system (one that was already connected to a server
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PlanningYour iSCSI Storage
3
System Configuration
This document is written for administrators who are planning and setting up iSCSI
SSR212PP-Series storage systems. It will help them plan an internet SCSI (iSCSI) storage
system configuration, and includes management port, iSCSI port, initiator iSCSI port, and
disk information. This document also contains information on planning and setting up the
optional Challenge Handshake Authentication Protocol (CHAP) security system common
to iSCSI configurations on shared networks.
For the most current, detailed, and complete configuration rules and sample
configurations, refer to the Tested Hardware and OS List (THOL) document the
SSR212PP support website. For information on how to access this website, refer to
the support information that shipped with your storage system.
Topics in this document include:
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
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Introduction
SSR212PP-Series iSCSI storage systems connect to servers through Internet SCSI (iSCSI)
interfaces. Storage systems and servers can connect directly from one iSCSI port to
another, or through an IP (Internet Protocol) network. iSCSI host bus adapters (HBAs) or
network interface cards (NICs) in the servers act as the physical iSCSI interfaces.
You must identify the network settings for each iSCSI I/O port in a storage system,
including the IP address, subnet mask, and gateway address. These settings define the
targets of input from the servers in your environment. You must also identify network
settings for the iSCSI I/O ports in servers that connect to the storage system; these settings
define the initiators of I/O between servers and the SSR212PP2i and SSR212PPi storage
systems.
In some contexts, iSCSI documentation refers to the servers and storage systems
themselves as initiators and targets, respectively.
Terminology
In this document, we use the terms initiator, target, server, and storage system as follows:
Initiator
A port on a NIC or iSCSI HBA that issues I/O requests to a target in the
storage system. NICs and HBAs are installed on the environment s
servers.
Target
A storage system port (target portal) that accepts and responds to requests
from an initiator. In iSCSI systems the targets, called front-end, or data,
ports, are on storage processors.
Server
A host connected (directly or through a network router or switch) to the
front-end (data) ports on SSR212PP-Series storage systems. A server can
also be a management station.
Storage system Your SSR212PP2i and SSR212PPi storage system.
iSNS
You can use the Internet Storage Naming Service (iSNS) on Windows platforms that are
part of an iSCSI configuration. iSNS requires an iSNS server on the storage network and a
client storage system; other hosts connected to the storage system are also iSNS clients.
The iSNS server acts as the repository where hosts and storage devices register their lists
of initiators and targets. Each individual initiator or target registers its components with
the iSNS server; the server then answers the initiator s queries for devices with the list of
registered targets. Discovery domains implemented on the server restrict what targets an
initiator sees.
CHAP
To prevent unauthorized access to the storage system, you can set up CHAP (Challenge
Handshake Authentication Protocol) authentication for both the initiator and the target.
For CHAP authentication, you specify a username and password (called a secret) that any
initiator must use to connect to the target through the iSCSI ports; the target authenticates
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the initiators. To increase the level of security, you can also set up mutual CHAP
authentication where initiators authenticate targets, thereby ensuring that the correct
initiators are connecting to the correct targets.
Planning worksheets
For each storage system that you will configure, complete a copy of the enclosed
worksheets and store it in a safe location. While working with this document and planning
your configuration, refer to the Tested Hardware and OS List (THOL) document the
SSR212PP support website for storage system configuration rules and sample
configurations.
CAUTION
All of your security efforts will be nullified if you leave any completed
worksheets in public places. Store them in a secure place.
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iSCSI Configuration Rules
Refer to this section as you plan your iSCSI environment with your network administrator.
It provides minimal guidelines for configuring initiator servers and target storage systems
in IP networks that use the iSCSI protocol. It is recommended to use discrete networks
dedicated to iSCSI data traffic, but support other configurations.
CAUTION
The number and complexity of supported configurations is constantly growing.
The rules and examples shown in this document are a subset of those in the more
complete, current, and detailed Tested Hardware and OS List (THOL) document
the SSR212PP support website.
Login Limitations
Initiator software
Supported logins
MIcrosoft iSCSI initiator
QLogic SANsurfer
1 login per server to each SP data port
1 login per HBA to each SP data port
Supported Network Devices
ꢀ
SSR212PP-Series storage systems support industry-standard switches and routers.
ꢀ
Initiators can connect to target iSCSI storage systems using a Layer 2 (switched) or
Layer 3 (routed) network.
ꢀ
VLANs and/or VPNs in the network should be transparent to the storage system and
are supported as long as the network quality is adequate.
Supported Server Devices
ꢀ
You can attach an SSR212PP-Series iSCSI storage system to Microsoft Windows
2000 and Microsoft Windows Server 2003 servers that run the native iSCSI
Microsoft-certified driver for NICs. Supported devices include both onboard NICs in
Microsoft-certified servers and Microsoft-certified PCI-based NICs.
ꢀ
ꢀ
ꢀ
You can attach an SSR212PP-Series iSCSI storage system to Microsoft Windows
2000, Microsoft Windows Server 2003, and Linux servers that use QLogic
QLA4010 HBAs and drivers.
You can attach an SSR212PP-Series iSCSI storage system to qualified Linux servers
that use the Cisco Linux driver. Supported devices include both onboard and PCI-
based NICs.
You can configure SSR212PP-Series iSCSI storage systems with iSNS servers and
clients.
ꢀ
ꢀ
You can connect up to four SSR212PP-Series iSCSI storage systems to a single server.
An SSR212PP2i storage system can connect to a maximum of 20 initiators or a
maximum of 10 servers (hosts); an SSR212PPi can connect to a maximum of 10
initiators or a maximum of 10 servers.
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ꢀ
You can connect up to four iSCSI HBAs or 4 NIC initiators (2 two-port NICs or 4
one-port NICs) in a server to one SSR212PP2i storage system. SSR212PPi systems
support connection to 4 iSCSI HBAs 1 two-port NIC, or 2 one-port NICs.
ꢀ
ꢀ
You cannot use both iSCSI HBAs and NICs in a single server.
Separate servers with HBAs and servers with NICs can connect to the same storage
system.
Environment and Configurability
ꢀ
A single host cannot attach to an EMC CLARiiON CX-series and an SSR212PP-
Series iSCSI storage system at the same time.
ꢀ
For proper traffic routing in an environment that uses physically separated networks,
each network must use a unique sub-network address.
This rule applies to both directly-connected configurations and those that use
dedicated subnets for the data paths.
ꢀ
When using multiple NICs in a server (host), each card should be on a different
subnet. The default Microsoft iSCSI Initiator configuration ignores additional cards
on the same subnet, which require use of the Advanced Log On procedure.
The Cisco Linux iSCSI driver does not support multiple NICs/HBAs on the
same subnet. Storage systems connected to Linux servers must configure
each storage-processor port on a different subnet.
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Administration Worksheet
The accompanying Administration Worksheet contains the following blanks that you will
need to fill in:
ꢀ
ꢀ
ꢀ
Storage system management port
Storage system iSCSI port
Initiator iSCSI port
Storage System Management Ports
The storage system can have two management ports, one per storage processor (SP). Plan
the network and security characteristics for each management port and record the data on
the accompanying Administration Worksheet. Use the A section to record network
information for the management interface. Your network administrator should provide this
information.
IP address
The static network IP (Internet Protocol) address (for example,
128.222.78.10) for communication with a management port of a storage
processor (SP A or SP B). Each SP has one management port. Make sure
that your assigned addresses do not conflict with other devices on the
corporate network.
Subnet mask The subnet mask for the local area network (LAN) to which the storage
system is connected for management, for example, 255.255.255.0.
Gateway
The gateway address for the LAN to which the storage system
management port is connected.
Username
A valid username for logging in to the management interface must start
with a letter and may contain 1 to 32 letters and numbers. The name may
not contain punctuation, spaces, or special characters. You can use
uppercase and lowercase characters. Usernames are case-sensitive. For
example, ABrown is a different username from abrown.
Password
A password for logging in to the management interface may contain 1 to
32 characters, consisting of uppercase and lowercase letters and
SSR212PP-Series numbers. As with the username, passwords are case-
sensitive. For example, Azure23 differs from azure23. The password is
valid only for the username you specified.
Storage System iSCSI Data Ports
Plan the network and security characteristics for each iSCSI data port and record the data
in the B section on the Administration Worksheet. Use the DATA port section to record
network information for the iSCSI data ports. Your network administrator should provide
this information.
IP address
The static network IP address of the storage system port (for example, 128.222.78.10).
This is a iSCSI data port on SP A or SP B. Each SP has two iSCSI data ports.
It is recommended to use these standard Internet addresses for private networks between
iSCSI data ports and their corresponding network interface cards and/or host bus adapters:
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ꢀ
ꢀ
ꢀ
Class A: 10.0.0.0 - 10.255.255.255
Class B: 172.16.0.0 - 172.31.255.255
Class C: 192.168.0.0 - 192.168.255.255
Make sure that your assigned addresses do not conflict with other devices on the corporate
network.
Each NIC or HBA in your server requires a unique IP address. In a server with multiple
NICs/HBAs attached directly to the storage system, or on a dedicated iSCSI network, the
initiator ports must be on separate subnets.
For example, an SSR212PP2i storage system directly attached to network interface cards
in one or two servers could assign network identifiers as follows:
Port
IP address
Subnet mask
Gateway
172.31.1.100
(1 = subnet)
255.255.255.0
0.0.0.0
Storage Processor A
iSCSI port
172.31.1.101
172.31.2.100
255.255.255.0
255.255.255.0
0.0.0.0
0.0.0.0
iSCSI NIC/HBA 1
Storage Processor B
iSCSI port
172.31.2.101
255.255.255.0
0.0.0.0
iSCSI NIC/HBA 2
Subnet mask
The subnet mask for the LAN subnet to which the iSCSI data port is connected.
Gateway
The default gateway address for the LAN to which the iSCSI data port is connected. If you
do not have a gateway, set the field to 0.0.0.0; do not leave the field blank.
Initiator iSCSI Data Ports
An SSR212PPi (single storage processor) storage system supports as many as 10
initiators; an SSR212PP2i (dual storage processor) storage system can support 20
initiators. Record the following initiator information for as many as 20 initiators in the C
section on the Administration Worksheet.
Port Name
This field is not mandatory, but you might find it useful to have a self-determined
identifier, especially in configurations with multiple iSCSI ports; for example,
srvr1NIC3prt0.
IP Address for iSCSI Initiator Port
The network IP (Internet Protocol) address of the initiator port. See the addressing
The initiator port addresses are not the related to the public IP address of the server
in which initiator ports reside.
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Subnet Mask for iSCSI Initiator Port
The subnet mask for the LAN to which the initiator port is connected.
Default Gateway for iSCSI Initiator Port
The default gateway address for the LAN to which the initiator port is connected. This
parameter does not apply to a system with a direct connection.
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Sample SSR212PP2i and SSR212PPi Configurations
The following examples show viable iSCSI configurations in order of increasing
complexity. Use them to design your own iSCSI environment. For example, you need to
determine whether you want to connect your iSCSI storage system directly to a server, set
up a dedicated iSCSI LAN for the storage system and its iSCSI initiators (a recommended,
simple configuration) or include the iSCSI storage system in a shared configuration that
requires more network expertise and potentially complex Challenge Handshake
Authentication Protocol (CHAP) security. (Note that to avoid system downtime, you
should set up and enable CHAP before your servers and the iSCSI storage system begin
exchanging data.)
This section describes the following sample configurations:
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SSR212PPi Directly Connected to One Server
Figure 5 shows one server, with two iSCSI initiators, directly cabled to an SSR212PPi s
iSCSI data ports.
Server with separate iSCSI NIC and public NIC
Corporate,
public or private
network
DAS iSCSI
iSCSI traffic
and public LAN
Management traffic
SSR212PPi
EMC3311
FIGURE 5.
SSR212PPi (Single SP) Directly Connected to One Server
Sample IP Addresses
Port
IP address
Subnet mask
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
Gateway
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
Storage Processor A iSCSI port 0
Storage Processor A iSCSI port 1
iSCSI NIC/HBA 1
172.31.1.150
172.31.2.150
172.31.1.101
172.31.2.101
iSCSI NIC/HBA 2
Management port IP addresses should match the corporate network scheme.
Advantages
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You can easily migrate this low-cost storage for a single server to a switched
environment.
The dedicated iSCSI path ensures maximum throughput from the host to the storage
system.
The dedicated path provides inherent security.
Disadvantages
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Since only one server can connect to the storage system, this configuration does not
take full advantage of the SSR212PPi s connectivity capabilities.
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While this configuration provides port failover and load balancing, it does not allow
SP failover.
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SSR212PPi Directly Connected to Two Servers
Figure 6 shows two servers, each with an iSCSI initiator directly cabled to an iSCSI data
port on the SSR212PPi.
Servers with separate iSCSI NIC and public NIC
Corporate,
public or private
network
DAS iSCSI
and public LAN
iSCSI traffic
iSCSI traffic
Management traffic
SSR212PPi
EMC3312
FIGURE 6.
SSR212PPi (Single SP) Directly Connected to Two Servers
Sample IP Addresses
Port
IP address
Subnet mask
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
Gateway
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
Storage Processor A iSCSI port 0
Storage Processor A iSCSI port 1
iSCSI NIC/HBA 1
172.31.1.150
172.31.1.151
172.31.1.101
172.31.1.102
iSCSI NIC/HBA 2
Management port IP addresses should match the corporate network scheme.
Advantages
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You can easily migrate this low-cost storage for two servers to a switched
environment.
The dedicated iSCSI path ensures maximum throughput from the host to the storage
system.
Since two servers can connect to the storage system, this configuration takes
advantage of the SSR212PPi s port connectivity capabilities.
The dedicated paths provide inherent security.
Disadvantages
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One storage processor does not allow for failover in case of SP failure.
A single path from each server prohibits failover or load balancing.
SSR212PP2i Directly Connected to One Server
Figure 7 shows one server, with four iSCSI initiators, directly cabled from the server to
each of the SSR212PP2i s iSCSI data ports.
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Server with separate iSCSI NIC and public NIC
Corporate,
public or private
network
DAS iSCSI
and public LAN
iSCSI traffic
iSCSI traffic
Management traffic
SSR212PP2i
(dual SP)
EMC3314
FIGURE 7.
SSR212PP2i (Dual SP) Directly Connected to One Server
Sample IP Addresses
Port
IP address
Subnet mask
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
Gateway
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
Storage Processor A iSCSI port 0
iSCSI NIC/HBA 1
172.31.1.150
172.31.1.101
172.31.2.150
172.31.2.101
172.31.3.150
172.31.3.101
172.31.4.150
172.31.4.101
Storage Processor A iSCSI port 1
iSCSI NIC/HBA 2
Storage Processor B iSCSI port 0
iSCSI NIC/HBA 3
Storage Processor B iSCSI port 1
iSCSI NIC/HBA 4
Management port IP addresses should match the corporate network scheme.
Advantages
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You can easily migrate this low-cost storage for a single server to a switched
environment.
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Redundant paths to the SSR212PP2i provide better failover capabilities. They sustain
access to the storage system in the event of an iSCSI initiator, cable, or data port
failure.
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The dedicated iSCSI path ensures maximum throughput from host to storage system.
Disadvantages
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Since only one server can connect to the storage system, this configuration does not
take full advantage of the SSR212PP2i s connectivity capabilities.
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A single server does not allow for expansion.
SSR212PP2i Directly Connected to Two Servers
Figure 8 shows two servers, each with two iSCSI initiators, directly cabled to the iSCSI
data ports on an SSR212PP2i.
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Servers with separate iSCSI NIC and public NIC
Corporate,
public or private
network
iSCSI traffic
DAS iSCSI
and public LAN
iSCSI traffic
Management traffic
SSR212PP2i
EMC3313
FIGURE 8.
SSR212PP2i (Dual SP) Directly Connected to Two Servers
Sample IP addresses
Port
IP address
Subnet mask
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
Gateway
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
Storage Processor A iSCSI port 0
iSCSI NIC/HBA 1
172.31.1.150
172.31.1.101
172.31.1.151
172.31.1.102
172.31.2.150
172.31.2.101
172.31.2.152
172.31.2.102
Storage Processor A iSCSI port 1
iSCSI NIC/HBA 1
Storage Processor B iSCSI port 0
iSCSI NIC/HBA 2
Storage Processor B iSCSI port 1
iSCSI NIC/HBA 2
Management port IP addresses should match the corporate network scheme.
Advantages
ꢀ
You can easily migrate this low-cost storage for four servers to a switched
environment.
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The dedicated iSCSI path ensures maximum throughput from host to storage system.
The dedicated paths provide inherent security.
Disadvantages
ꢀ
Since only two servers can connect to the storage system, this configuration does not
take full advantage of the SSR212PP2i s connectivity capabilities.
SSR212PP2i Directly Connected to Four Servers
Figure 9 shows four servers, each with an iSCSI initiator directly cabled to an
SSR212PP2i iSCSI data port.
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Servers with separate iSCSI NICs and public NIC
Corporate,
public or private
network
DAS iSCSI
and public LAN
iSCSI traffic
iSCSI traffic
Management Traffic
SSR212PP2i
(dual SP)
EMC3315
FIGURE 9.
SSR212PP2i (Dual SP) Directly Connected to Four Servers
Sample IP addresses
Port
IP address
Subnet mask
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
Gateway
Storage Processor A iSCSI port 0
Server 1 iSCSI NIC/HBA 1
Storage Processor A iSCSI port 1
Server 2 iSCSI NIC/HBA 1
Storage Processor B iSCSI port 0
Server 3 iSCSI NIC/HBA 1
Storage Processor B iSCSI port 1
Server 4 iSCSI NIC/HBA 1
172.31.1.150
172.31.1.101
172.31.2.150
172.31.2.102
172.31.3.150
172.31.3.103
172.31.4.150
172.31.4.104
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
Management port IP addresses should match the corporate network scheme.
Advantages
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You can easily migrate this low-cost storage for four servers to a switched
environment.
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The dedicated iSCSI path ensures maximum throughput from host to storage system.
Takes maximum advantage of the SSR212PP2i connectivity capabilities.
The dedicated paths provide inherent security.
Disadvantages
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Since there is only one path to the SSR212PP2i from each server, this configuration
provides no failover or load balancing capabilities.
SSR212PPi Connected to a Dedicated iSCSI Network (Single-Initiator
Servers)
Figure 10 shows an SSR212PPi with up to ten servers. Each server has a single iSCSI
initiator, and is connected with a single Ethernet switch (dedicated for iSCSI traffic) to the
storage system s iSCSI data ports.
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Server with separate iSCSI NIC and public NIC
Corporate,
public or private
network
Dedicated
iSCSI LAN
Management Traffic
iSCSI traffic
SSR212PPi
EMC3316
FIGURE 10. SSR212PPi (Single SP) Connected to a Dedicated Network
Sample IP addresses
Port
IP address
Subnet mask
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
Gateway
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
Storage Processor A iSCSI port 0
Storage Processor A iSCSI port 1
Server 1 iSCSI NIC/HBA 1
Server 2 iSCSI NIC/HBA 1
Server 3 iSCSI NIC/HBA 3
Continue for up to 10 servers . . .
172.31.1.150
172.31.1.151
172.31.1.101
172.31.1.102
172.31.1.103
Management port IP addresses should match the corporate network scheme.
Advantages
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Low-cost storage for up to ten servers.
Adding NICs or iSCSI HBAs to the configuration increases throughput.
Connection to multiple servers maximizes use of the storage system s capabilities.
A dedicated iSCSI LAN avoids network contention with your corporate LAN, and
reduces security risks.
Disadvantages
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No storage processor failover capability.
SSR212PPi Connected to a Dedicated iSCSI Network (Multiple-
Initiator Servers)
Figure 11 shows an SSR212PPi with up to ten servers. Each server has two iSCSI
initiators, and is connected with Ethernet switches (dedicated for iSCSI traffic) to the
storage system s iSCSI data ports.
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Servers with separate iSCSI NIC and public NIC
Corporate,
public or private
network
Management traffic
iSCSI traffic
SSR212PPi
EMC3317
FIGURE 11. SSR212PPi On a Dedicated LAN with Redundant Paths
Sample IP addresses
Port
IP address
Subnet mask
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
Gateway
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
Storage Processor A iSCSI port 0
Storage Processor A iSCSI port 1
Server 1 iSCSI NIC/HBA 1
Server 1 iSCSI NIC/HBA 2
Server 2 iSCSI NIC/HBA 1
Server 2 iSCSI NIC/HBA 2
Continue for up to 10 servers . . .
172.31.1.150
172.31.2.150
172.31.1.101
172.31.2.101
172.31.1.102
172.31.2.102
For additional throughput, add NICs or iSCSI HBAs to the configuration.
Management port IP addresses should match the corporate network scheme.
Advantages
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Low-cost storage for up to ten servers.
Connection to multiple servers maximizes the use of the storage system s capabilities.
A dedicated iSCSI LAN avoids network contention with your corporate LAN, and
reduces security risks.
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Connection to each SP port from both servers provides redundant data paths in case
one path fails.
Disadvantages
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No load balancing.
SSR212PP2i Connected to a Dedicated iSCSI Network (Single-Initiator
Servers)
Figure 12 shows an SSR212PP2i with up to ten servers. Each server has a single iSCSI
initiator, and is connected with a single Ethernet switch, dedicated for iSCSI traffic, to the
storage system s four iSCSI data ports. This represents the most common SSR212PP2i
configuration.
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Server w/ separate iSCSI NIC & public NIC
Corporate,
Public or Private
Network
Dedicated
iSCSI LAN
iSCSI Traffic
SSR212PP2i
(dual SP)
EMC3320
FIGURE 12. Network-Connect SSR212PP2i (Dual SP, Dedicated LAN)
Sample IP addresses
Port
IP address
Subnet mask
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
Gateway
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
Storage Processor A iSCSI port 0
Storage Processor A iSCSI port 1
Storage Processor B iSCSI port 0
Storage Processor B iSCSI port 1
Server 1 iSCSI NIC/HBA 1
Server 2 iSCSI NIC/HBA 1
Server 3 iSCSI NIC/HBA 1
Continue for up to 10 servers . . .
172.31.1.150
172.31.1.151
172.31.1.152
172.31.1.153
172.31.1.101
172.31.1.102
172.31.1.103
The above addresses are not valid for a Linux environment, in which each SP port
must be on a different subnet. A Linux host in this configuration could log in to
ports on SP A or SP B, but not both. Management port IP addresses should match
the corporate network scheme.
Advantages
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Low-cost storage for up to ten servers.
Connection to multiple servers maximizes use of the storage system s capabilities.
Using a dedicated iSCSI LAN avoids network contention with your corporate LAN
and reduces security risks.
ꢀ
ꢀ
This configuration provides failover capabilities in the event of a storage processor
failure.
Using two storage processors improves overall storage system performance.
Disadvantages
ꢀ
This configuration has limited failover capability since the single initiator and single
switch provide only one path from a server to the iSCSI Ethernet switch.
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SSR212PP2i Connected to a Dedicated iSCSI Network (Multiple-
Initiator Servers)
Figure 13 shows an SSR212PP2i with up to ten servers. Each server has two iSCSI
initiators, and is connected with Ethernet switches (dedicated for iSCSI traffic) to the
storage system s four iSCSI data ports. This represents a secure and highly available
SSR212PP2i configuration.
Server with 2 iSCSI NICs and 1 public NIC
Corporate,
public or private
network
iSCSI traffic
iSCSI traffic
Management traffic
SSR212PP2i
EMC3321
FIGURE 13. SSR212PP2i On a Dedicated LAN with Redundant Paths
Sample IP addresses
Port
IP address
Subnet mask
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
Gateway
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
Storage Processor A iSCSI port 0
Storage Processor A iSCSI port 1
Storage Processor B iSCSI port 0
Storage Processor B iSCSI port 1
Server 1 iSCSI NIC/HBA 1
Server 1 iSCSI NIC/HBA 2
Server 2 iSCSI NIC/HBA 1
Server 2 iSCSI NIC/HBA 2
Server 3 iSCSI NIC/HBA 1
Server 3 iSCSI NIC/HBA 2
Continue for up to 10 servers . . .
172.31.1.150
172.31.2.150
172.31.1.151
172.31.2.151
172.31.1.101
172.31.2.101
172.31.1.102
172.31.2.102
172.31.1.103
172.31.2.103
Management port IP addresses should match the corporate network scheme.
Advantages
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ꢀ
ꢀ
Low-cost storage for up to ten servers.
Connection to multiple servers maximizes the use of the storage system s capabilities.
Using a dedicated iSCSI LAN avoids network contention with your corporate LAN
and reduces security risks
ꢀ
Failover capabilities in the event of a storage processor failure.
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ꢀ
ꢀ
Using two storage processors improves overall storage system performance.
Connection to each SP port from both servers provides redundant data paths in case
one path fails.
Disadvantages
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This configuration incurs the cost of a second switch.
SSR212PPi Connected to a Dedicated iSCSI/Management Network
(Single-Initiator Server)
Figure 14 shows an SSR212PPi with up to ten servers. Each server has a single iSCSI
initiator, and is connected with a single Ethernet switch (used for management and iSCSI
traffic) to the storage system s iSCSI data and management ports.
This configuration requires a NIC connection; iSCSI HBAs qualified on
SSR212PP-Series systems do not support management input/output.
Server with separate iSCSI NIC and public NIC
Corporate,
public or private
Dedicated
iSCSI LAN
network
iSCSI traffic
SSR212PPi
EMC3318
FIGURE 14. SSR212PPi On a Dedicated LAN with Limited Access to Management
Ports
Sample IP addresses
Port
IP address
Subnet mask
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
Gateway
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
Storage Processor A management port
Storage Processor A iSCSI port 0
Storage Processor A iSCSI port 1
Server 1 iSCSI NIC/HBA 1
Server 2 iSCSI NIC/HBA 1
Server 3 iSCSI NIC/HBA 1
Continue for up to 10 servers . . .
172.31.1.200
172.31.1.150
172.31.1.151
172.31.1.101
172.31.1.102
172.31.1.103
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Management port IP addresses should match the corporate network scheme.
Advantages
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
Low-cost storage for up to ten servers.
Improved security: System management requires a connection to the private network.
Adding NICs to the configuration increases throughput.
Connection to multiple servers maximizes use of the storage system s capabilities.
A dedicated iSCSI LAN avoids network contention with your corporate LAN and
reduces security risks.
Disadvantages
ꢀ
ꢀ
ꢀ
Limited failover capability since the single initiator and single switch provide only
one path from a server to the iSCSI Ethernet switch.
Reduced access for remote management: To perform management tasks, you must be
connected to a host on the private network.
One storage processor does not allow for failover in case of SP failure.
SSR212PPi Connected to a Dedicated iSCSI/Management Network
(Multiple-Initiator Servers)
Figure 15 shows an SSR212PPi with up to ten servers. Each server has two iSCSI
initiators, and is connected with Ethernet switches (used for management and iSCSI
traffic) to the storage system s iSCSI data and management ports.
This configuration requires a NIC connection; iSCSI HBAs qualified on
SSR212PP-Series systems do not support management input/output.
Servers with 2 iSCSI NICs and 1 public NIC
Corporate,
public or private
network
Management traffic
iSCSI traffic
iSCSI traffic
SSR212PPi
EMC3319
FIGURE 15. SSR212PPi On a Dedicated LAN (Redundant Paths, Limited Access to
Management Ports)
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Sample IP addresses
Port
IP address
Subnet mask
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
Gateway
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
Storage Processor A management port
Storage Processor A iSCSI port 0
Storage Processor A iSCSI port 1
Server 1 iSCSI NIC/HBA 1
Server 1 iSCSI NIC/HBA 2
Server 2 iSCSI NIC/HBA 1
Server 2 iSCSI NIC/HBA 2
Continue for up to 10 servers . . .
172.31.1.200
172.31.1.150
172.31.2.150
172.31.1.101
172.31.1.102
172.31.2.101
172.31.2.102
Management port IP addresses should match the iSCSI LAN address scheme.
Advantages
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
Low-cost storage for up to ten servers.
Improved security: System management requires a connection to the private network.
Connection to multiple servers maximizes use of the storage system s capabilities.
You can increase throughput by adding NICs to the configuration.
Connection to each SP port from both switches provides redundant data paths in case
one path fails.
Disadvantages
ꢀ
Reduced access for remote management: To perform management tasks, you must be
connected to a host on the private network.
ꢀ
One storage processor does not allow for failover in case of SP failure.
SSR212PP2i Connected to a Dedicated iSCSI/Management Network
(Single-Initiator Server)
Figure 16 shows a variation of the previous SSR212PP2i configuration with up to ten
servers on a dedicated LAN. Each server has a single iSCSI initiator, and is connected
with a single Ethernet switch to the storage system s iSCSI data and management ports.
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This configuration requires a NIC connection; iSCSI HBAs qualified on
SSR212PP-Series systems do not support management input/output.
Server with separate iSCSI NIC and public NIC
Corporate,
public or private
Dedicated
iSCSI LAN
network
SSR212PP2i
(dual SP)
EMC3322
FIGURE 16. SSR212PP2i (Dual SP) Connected to a Private LAN
Sample IP addresses
Port
IP address
Subnet mask
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
Gateway
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
Storage Processor A management port
Storage Processor A iSCSI port 0
Storage Processor A iSCSI port 1
Storage Processor B management port
Storage Processor B iSCSI port 0
Storage Processor B iSCSI port 1
Server 1 iSCSI NIC/HBA 1
172.31.1.200
172.31.1.150
172.31.1.151
172.31.1.201
172.31.1.152
172.31.1.153
172.31.1.101
172.31.1.102
172.31.1.103
Server 2 iSCSI NIC/HBA 1
Server 3 iSCSI NIC/HBA 1
Continue for up to 10 servers . . .
The private network must be on a different subnet from the public LAN.
Advantages
ꢀ
ꢀ
Improved security: System management requires a connection to the private network.
Simplified network setup: All of the storage system ports are on the private network,
so you need to assign only one set of addresses on a single subnet. A network
administrator aware of all available addresses must assign any addresses required for
the public network from a smaller pool.
ꢀ
Simplified troubleshooting: Since everything is on a dedicated private network, you
have fewer variables to consider when issues arise.
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Disadvantages
ꢀ
Reduced access for remote management: To perform management tasks, you must be
connected to a host on the private network.
ꢀ
Limited failover capability since the single initiator and single switch provide only
one path from a server to the iSCSI Ethernet switch.
SSR212PP2i Connected to a Dedicated iSCSI Network (Multiple-
Initiator Servers)
Figure 17 shows an SSR212PP2i with up to ten servers. Each server has two iSCSI
initiators connected with two Ethernet switches (dedicated for storage system traffic) to
SSR212PP2i iSCSI data ports. The performance and availability advantages of this
configuration make it optimal for many environments.
This configuration requires a NIC connection; iSCSI HBAs qualified on
SSR212PP-Series systems do not support management input/output.
Servers with 2 iSCSI NICs and 1 public NIC
Corporate,
public or private
network
Management
Mgmt
traffic
traffic
iSCSI traffic
iSCSI traffic
iSCSI traffic
SSR212PP2i
(dual SP)
EMC3323
FIGURE 17. SSR212PP2i (Dual SP) On a Dedicated LAN with Redundant iSCSI
Paths
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Sample IP addresses
Port
IP address
Subnet mask
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
255.255.255.0
Gateway
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
0.0.0.0
Storage Processor A management port
Storage Processor A iSCSI port 0
Storage Processor A iSCSI port 1
Storage Processor B management port
Storage Processor B iSCSI port 0
Storage Processor B iSCSI port 1
Server 1 iSCSI NIC/HBA 1
172.31.1.200
172.31.1.150
172.31.2.150
172.31.1.201
172.31.1.151
172.31.2.151
172.31.1.101
172.31.2.101
172.31.1.102
172.31.2.102
172.31.1.103
172.31.2.103
Server 1 iSCSI NIC/HBA 2
Server 2 iSCSI NIC/HBA 1
Server 2 iSCSI NIC/HBA 2
Server 3 iSCSI NIC/HBA 1
Server 3 iSCSI NIC/HBA 2
Continue for up to 10 servers . . .
Advantages
ꢀ
ꢀ
ꢀ
Low-cost storage for up to ten servers.
Connection to multiple servers maximizes the use of the storage system s capabilities.
The use of dedicated iSCSI LANs avoids network contention with your corporate
LAN and reduces security risk.
ꢀ
ꢀ
This configuration offers the best overall failover capabilities to withstand storage
processor, switch, initiator, or cable failures.
Using two storage processors improves overall storage system performance.
Disadvantages
ꢀ
ꢀ
ꢀ
Duplicate hardware raises configuration costs.
Redundancy increases hardware configuration and setup complexity.
Reduced access for remote management: To perform management tasks, you must be
connected to a host on the private network.
SSR212PP2i/SSR212PPi Connected to a Shared Public/iSCSI Network
Figure 18 shows SSR212PP2i and SSR212PPi storage systems with up to ten servers.
Each server has a single iSCSI NIC connected with an Ethernet switch (shared for both
corporate LAN and iSCSI traffic) to the storage system s iSCSI data and management
ports.
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Single NIC sharing
iSCSI and public
LAN
Corporate,
public or private
network
Corporate,
public or private
network
Management
traffic
Mgmt
traffic
Mgmt
traffic
iSCSI
traffic
Shared iSCSI LAN
and public LAN
iSCSI
traffic
iSCSI
traffic
SSR212PPi
SSR212PP2i
(dual SP)
EMC3324
FIGURE 18. SSR212PPi/SSR212PP2i (Single SP) to a Shared Single iSCSI NIC
IP addresses in a shared environment should match the corporate network IP
address scheme.
Advantages
ꢀ
Sharing a switch with your public LAN costs less than dedicating a switch for iSCSI
traffic.
ꢀ
ꢀ
ꢀ
Provides low-cost storage for up to ten servers
SSR212PP2i provides failover capabilities in the event of a storage processor failure.
SSR212PP2i has two storage processors and thus improves overall storage system
performance.
Disadvantages
ꢀ
Possible contention between iSCSI traffic and LAN traffic on a shared Ethernet
switch could reduce performance. The source of contention (iSCSI or LAN traffic) is
also difficult to identify.
ꢀ
Limited failover capability since the single initiator provides only one path from a
server to the iSCSI Ethernet switch.
ꢀ
ꢀ
All traffic on a single NIC reduces overall server performance.
A shared LAN usually requires CHAP security.
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Storage System Disk Information
This section defines storage system disk information. Fill out the following worksheet as
described in this section.
Disk Information
Disk Pool
Virtual Disk
Number
(1- 6 or
Spare)
Disks to
Form Pool Capacity
(1-12)
Free
Capacity Space
Function (Gbytes) (Gbytes) Assigned
Server
To Be
(Gbytes) Name
Use this worksheet to list the disk pools and virtual disks that you will create. A sample
worksheet section and information about completing the columns in it follows. The
sample worksheet shows that 20- and 38-Gbyte virtual disks have been reserved for
expansion of virtual disks in the three disk pools. The storage system described in the
worksheet has 250-Gbyte disks (not 500-Gbyte disks).
Disk Information
Disk Pool
Virtual Disk
Number Disks to
Free
Space
(Gbytes)
Server
(1- 6 or
Spare)
Form Pool
(1-12)
Capacity
(Gbytes) Name
Capacity
(Gbytes)
To Be
Function
Assigned
1
0, 1, 2, 3 651 Vdisk1 Users A-N
315
20
PC1234
Vdisk2 Users O-Z 316
2
3
4, 5, 6, 7 690 Vdisk3 Database
660
440
38
20
8, 9, 10
11
460 Vdisk4
Mail
Spare
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Number (1-6 or spare)
You must create at least one disk pool for virtual disks. You can create up to four RAID 5
disk pools or six RAID 1/0 disk pools, numbered 1-6, in a storage system.
If your system has two SPs, you should create at least two disk pools, since the software
assigns one or more disk pools to each SP; that is, it assigns disk pool 1 and all its virtual
disks to SP A, disk pool 2 and all its disks to SP B, disk pool 3 and its disks to SP A, and
disk pool 4 and its disks to SP B. If you create only one pool, all virtual disks in the
storage system will be assigned to SP A.
Disks to Form Each Pool
For each pool, specify the numbers of the disks you will include. The number of disks in a
pool determines its capacity. Generally, we suggest no more than six; the minimum is
three for RAID 5 and two for RAID 1/0 pools.
For maximum use of space on the disks, it is recommended that you do not combine disks
0 through 3 (the operating system disks) in a disk pool with other disks. Part of the space
on the operating system disks is preloaded with system data, and as a result, is not
available for your data. If you combine operating system disks in a disk pool with other
disks, each of the other disks loses space for data equal to the system data space on an
operating system disk.
If you have disks of differing capacities (for example, 250- and 500-Gbyte), always use
disks of the same capacity when creating a disk pool. If the disks have different capacities,
the software will format each disk at the smaller of the two disk sizes, wasting more than
200 Gbytes of potential storage on each larger disk.
When you create disk pools, consider making one disk a hot spare. A hot spare allows
your system to continue running with its normal performance and retain its redundancy if
a disk fails. However, because a hot spare is reserved as a replacement disk, it cannot be
used as a virtual disk. You may not want to devote an entire disk to maintaining
redundancy after a disk failure.
If you create disk pools that use all the storage system disks, no space will remain for a hot
spare. Later, if you need to create a hot spare, you must delete all the virtual disks in the
disk pool, delete the pool, create a new pool, and then create the hot spare and new virtual
disks on the new pool.
Always use a disk with the largest capacity as a hot spare. You can make any disk other
than 0, 1, 2, or 3 a hot spare. If you decide to use a hot spare, write "Spare" in the
appropriate row in column 1 and the disk number in column 2.
If you want to create disk snapshots, that is, capture point-in-time images of a virtual disk,
then you must reserve disk space for snapshot disk resources. The snapshot resource uses
this space transparently for snapshot operations, but the space must be available and not
allocated to any virtual disk. The snapshot resource requires a maximum of 20 percent of
each virtual disk whose point-in-time images you will capture, allocated in 10-Gbyte
blocks. For example, if you will take snapshots of a 290-Gbyte virtual disk, leave 60
Gbytes of disk space unused. Twenty percent of 290 is 58, but space is given in 10-Gbyte
blocks; therefore you must reserve 60 Gbytes.
From Disk 0 through Disk 11, select the disks that you want to include in the disk pool,
and select a disk to be a Hot Spare. Record this information in the Storage System disk
information worksheet.
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Disk pool capacity (Gbytes)
To calculate the size of a RAID 5 disk pool, multiply the number of disks less 1 (n-1) by
the disk capacity. For a RAID 1/0 disk pool, multiply the number of disks by the disk
capacity, then divide by 2. The following table shows the formatted capacity of
SSR212PP-Series disks.
250 Gbyte Disks
500 Gbyte disks
217 Gbytes per disk
230 Gbytes per disk
458 Gbytes per disk
445 Gbytes per disk
Disks 0-3
Disks 4-11
Name
Name the virtual disks in each disk pool. You can include up to 128 virtual disks in a disk
pool. The default virtual disk name is Virtual Disk n, where n is the sequential number,
starting with 1. However, you can substitute a more meaningful name, such as Users or
Mail. You can choose to have multiple applications on the same virtual disk.
If you will have more than one disk pool, try to place the same number of virtual disks in
each pool. Or, if you know that one or more virtual disks will be accessed often, you might
choose to place these on their own SP. For example, you might place a heavily accessed
virtual disk, such as a database, by itself on disk pool 2, attached to SP B; and place other,
lightly accessed virtual disks in disk pool 1, attached to SP A.
Function
Describe the purpose of the virtual disk.
Virtual disk capacity (Gbytes)
Determine the capacity of each virtual disk in the disk pool. The combined capacity of all
virtual disks cannot exceed the available space of the parent disk pool.
Decide how much space in the disk pool should be free space. Generally, you should leave
a modest amount of free space, such as 10 percent of the disk pool size, in each pool. Then
you can expand any of the virtual disks in the pool up to the amount of reserved space.
Free space (Gbytes)
Enter the amount of free space you want to reserve for expansion. Note this space is
available to all virtual disks in the disk pool; that is, if there are multiple virtual disks in
the pool, you can allocate part or all of the free space to one virtual disk or among several
disks.
If you do not reserve adequate free space in a disk pool, and you need more space
on a virtual disk in the pool, you must back up the data in the pool, destroy the pool,
create a new pool with a larger virtual disk, and then reload the data.
Server to be assigned (assigned servers)
You will need to specify each assigned server when you create the virtual disk. Write the
server hostname here. The maximum number of servers you can connect to one storage
system is ten.
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What is Microsoft iSNS?
Microsoft Internet Storage Naming Service (iSNS) is an option that applies to
configurations with multiple hosts.
The iSNS service provides automated discovery, management and configuration of iSCSI
devices. It eliminates the need to manually configure each individual storage device with
its own list of initiators and targets. Once configured, the iSNS server assumes
responsibility for the discovery and management of iSCSI devices.
The iSNS service includes an iSNS server component and iSNS client components. The
iSNS server must reside somewhere within the IP storage network, for example, in the
switch firmware, or on a host. An iSNS client resides on both the SSR212PP-Series iSCSI
storage system and any iSCSI hosts connected to the storage system. When you start the
storage system, the iSNS client on the storage system gathers all the storage system s
iSCSI port information and stores it locally on the storage system. When you add a server
to the storage system s iSNS configuration, Navisphere Express establishes a connection
from the storage system to the iSNS server, and then registers all the stored information on
the storage system with the iSNS server.
To use the features of the iSNS service in an iSCSI storage environment:
ꢀ
ꢀ
ꢀ
An iSNS server must be running on a network to which the storage system has access.
The NIC or iSCSI HBA initiators must be able to use the iSNS service.
The iSNS server must be able to communicate with the storage system.
Figure 19 represents a sample iSNS configuration. In this configuration, the management
and storage networks are separate. The management station is used to configure both the
iSNS servers and the storage system (using Navisphere Express). The iSNS servers are
also connected to the storage network so that the clients may query them for target
information. The storage system uses either the storage or the management network to
register its targets (ports) with the iSNS servers.
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Management
station
Management network
iSNS
Target
queries
registration
Primary
iSNS
Clients
(initiators)
Backup
iSNS
server
server
SSR212PPi
Target
registration
EMC3165
Storage networks
FIGURE 19. Sample iSNS Storage Configuration
The storage system actively communicates with only one iSNS server at a time (the
primary server). You can add additional servers to act as backup (secondary) servers.
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iSNS Server Worksheet
Enter the public IP address and name of your network s primary iSNS server and
secondary (backup) iSNS server if you have one.
Note that the public IP address is not related to the server s iSCSI port addresses.
TABLE 1.
iSNS Server Worksheet
Server type
IP address
Server name
Primary iSNS server
‘
Secondary iSNS server
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What is CHAP?
Challenge Handshake Authentication Protocol (CHAP) is an optional iSCSI
authentication method where the target authenticates iSCSI initiators. CHAP consists of
initiator CHAP and mutual CHAP, depending on which way the authentication occurs. For
initiator CHAP, the target authenticates the initiator. Mutual CHAP can be configured in
addition to initiator CHAP. For mutual CHAP, the initiator authenticates the target.
Initiator CHAP
To establish a connection and gain access to storage in an initiator CHAP configuration,
the initiator must present a username and secret to the iSCSI target. The storage system
compares the username and secret with a database of CHAP user accounts to authenticate
the initiator.
To set up initiator CHAP authentication, you enter the username and secret on the target,
then configure each initiator to use that username and secret.
Mutual CHAP
In a mutual CHAP configuration, both the target and the initiator authenticate each other.
In addition to setting up initiator CHAP, you can configure the initiator with a username
and secret that the target must present to establish a connection. You must also configure
the target to present this username and secret to initiators.
If you are planning to set up optional CHAP authentication security on the storage system,
prepare the following storage system CHAP security worksheets for initiator CHAP and
mutual CHAP.
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iSCSI CHAP Authentication Worksheets
If the storage system is on a private LAN, you can elect not to configure CHAP
authentication. If the storage system is on a public LAN, we strongly recommend that you
set CHAP security. If you do not set CHAP security for the storage system, any host
connected to the LAN can read from and write to the storage system.
CAUTION
Whenever you record any security information such as the CHAP usernames and
secrets (passwords), it is imperative that you store the data in a secure location.
Storage System CHAP Levels
To set up a basic CHAP level, you can add one or more usernames and corresponding
secrets. Any initiator configured with one of these usernames/secrets can establish a
connection.
To set up an advanced CHAP level, you can configure both initiator CHAP and mutual
CHAP. You can create initiator CHAP so that all initiators can use each username/secret
(as in basic CHAP). You can also use the iSCSI node name (IQN) to create
usernames/secrets that are restricted for use by a single initiator. Optionally, you can
configure mutual CHAP with a single target CHAP username/secret.
Initiator CHAP Worksheet
If you want the storage system to authenticate initiators, fill out the Initiator CHAP
Worksheet for all initiator accounts. Initiator CHAP must be set up and enabled for iSCSI
security to work. The easiest way to configure initiator CHAP is to create a friendly
username and secret for all initiators.
Initiator name: ___________________________________________________________
Use initiator name as system CHAP username:Yes___ No___
Allow any initiator to log In with this username and secret:Yes___ No___
CHAP username: _________________________________________________________
CHAP secret: ________________________________ Specified in hex:Yes___ No___
Initiator name: ___________________________________________________________
Use initiator name as system CHAP username:Yes___ No___
Allow any initiator to log In with this username and secret:Yes___ No___
CHAP username: _________________________________________________________
CHAP secret: ________________________________ Specified in hex:Yes___ No___
Initiator name: ___________________________________________________________
Use initiator name as system CHAP username:Yes___ No___
Allow any initiator to log In with this username and secret:Yes___ No___
CHAP username: _________________________________________________________
CHAP secret: ________________________________ Specified in hex:Yes___ No___
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Initiator name: ___________________________________________________________
Use initiator name as system CHAP username:Yes___ No___
Allow any initiator to log In with this username and secret:Yes___ No___
CHAP username: _________________________________________________________
CHAP secret: ________________________________ Specified in hex:Yes___ No___
Initiator name: ___________________________________________________________
Use initiator name as system CHAP username:Yes___ No___
Allow any initiator to log In with this username and secret:Yes___ No___
CHAP username: _________________________________________________________
CHAP secret: ________________________________ Specified in hex:Yes___ No___
Initiator name: ___________________________________________________________
Use initiator name as system CHAP username:Yes___ No___
Allow any initiator to log In with this username and secret:Yes___ No___
CHAP username: _________________________________________________________
CHAP secret: ________________________________ Specified in hex:Yes___ No___
Initiator name: ___________________________________________________________
Use initiator name as system CHAP username:Yes___ No___
Allow any initiator to log In with this username and secret:Yes___ No___
CHAP username: _________________________________________________________
CHAP secret: ________________________________ Specified in hex:Yes___ No___
Initiator name: ___________________________________________________________
Use initiator name as system CHAP username:Yes___ No___
Allow any initiator to log In with this username and secret:Yes___ No___
CHAP username: _________________________________________________________
CHAP secret: ________________________________ Specified in hex:Yes___ No___
Initiator name
The initiator name is a predefined name that usually begins with iqn (for iSCSI Qualified
Name). You can determine the name by running the SANSurfer utility (shipped with
QLogic HBAs) or the Microsoft iSCSI Software Initiator for Ethernet NICs. The
Microsoft iSCSI Software Initiator is available on the Microsoft website.
Use initiator name as system CHAP username
If you want to use the initiator name as the CHAP username, check the Use Initiator Name
as System CHAP Username box. If you want to create a new username, leave the box blank.
CHAP username
The CHAP username is a name that you assign for one user or for all users that connect to
the storage system iSCSI port. Either you can use the same name as the initiator name or
you can create a new name. If you use the same name as the initiator name, you are
guaranteed to have a unique name. If you create a new friendly username, that name might
not be unique unless you are on a private network and create a unique name for the
network.
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CHAP secret (password)
For ASCII, the valid range is 12 to 16 printable characters. For hexadecimal (hex), the
valid range is 24 to 32 hexadecimal characters, displayed in pairs. If you want to specify in
hex, mark the box.
Allow any initiator to log In with this username and secret
To allow any initiator to log in to the storage system, check the Allow any Initiator to Login
with this Username and Secret box. If all initiators are trusted (for example, in a department
or organization), you might want to check this for convenience. You can always grant or
restrict initiator access to this storage system through the virtual disks.
Mutual CHAP Worksheet
Mutual CHAP management provides an optional extra level of security that lets initiators
verify the identity of the target storage system. If you want the initiators to authenticate
targets, fill out the Mutual CHAP worksheet for all mutual CHAP accounts.
Target CHAP username: _________________________________________________
Target CHAP secret (password): _______________________ Specified in hex:Yes ___ No ___
CAUTION
Whenever you record any security information such as the CHAP usernames and
secrets (passwords), it is imperative that you store the data in a secure location.
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Installing an iSCSI
Storage System
4
This procedure describes the process of connecting an SSR212PP-Series iSCSI (Internet
SCSI) storage system (SSR212PPi or SSR212PP2i) to a Microsoft Windows¤ or Linux
server in one of these methods:
ꢀ
ꢀ
through the network.
directly.
Terminology
host
A computer that is or will be connected to an SSR212PP-Series storage
system. This computer is called either a management host or a server,
depending on how it is or will be connected to the storage system.
management host
A host from which you manage SSR212PP-Series storage systems. It
must be on the same LAN as the storage system management ports. A
management host may also be a server.
server
A host that is already or will be connected directly to the Fibre Channel
ports on an SSR212PP-Series storage system. A management host may
also be a server.
existing server The server that is already configured for and connected to an SSR212PP-
Series storage system.
new server
A server that is not already connected to or set up for an SSR212PP-
Series storage system.
existing NIC or iSCSI HBA
The network interface card (NIC) or iSCSI host bus adapter (HBA) that is
already installed in a server.
new NIC or iSCSI HBA
The NIC or iSCSI HBA that was not already installed in the server.
existing storage system
An SSR212PP-Series storage system that is already connected to a server
and configured for storage.
new storage system
A storage system that is not connected to a server or configured for
storage. It is just as it was shipped to you.
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field-replaceable unit (FRU)
A storage system component that you can add to your storage system or
replace in your storage system at your site. Examples of FRUs are disks,
power supplies, memory cards, and power supplies.
storage processor (SP)
A printed-circuit board with processors, memory modules, and control
logic that manages the I/O between the server and the disk modules.
disk pool
A set of disks with the same capacity and RAID type on which you create
one of more virtual disks.
virtual disk
A grouping of physical disk partitions into one span of disk storage space.
Each virtual disk you create is distributed equally across the disks in the
disk pool. A virtual disk looks like an individual disk to the server s
operating system.
CHAP
iSNS
Challenge Handshake Authentication Protocol. An optional security
mechanism to control access to an iSCSI storage system over the iSCSI
data ports.
Microsoft Internet Storage Naming Service (iSNS) provides automated
discovery, management and configuration of iSCSI devices.
An SSR212PPi storage system has one SP, so it is called a single-SP system. An
SSR212PP2i storage system has two SPs, so it is called a dual-SP system.
BeforeYou Start
❑ Review Tested Hardware and OS List (THOL) on the SSR212PP support website to
confirm that the following are supported:
ꢀ
ꢀ
The server hardware that will access the storage system.
The operating system version running on the server hardware.
❑ For a new storage system installation, you will need:
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
An SSR212PPi or SSR212PP2i storage system and the cables, rails, and CDs that ship
with it.
For an SSR212PP2i (dual-SP system), an uninterruptible power supply (UPS) kit,
including the power cords, UPS serial cable, and mounting hardware.
Standard AC power for each power supply in the storage system from an independent
AC source or a cabinet/rack power distribution unit.
A CAT 5, CAT 5e, or CAT 6 network cable for each management port you will use on
the storage system.
The following management port network information, which the person responsible
for your network should provide:
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ꢁ
ꢁ
ꢁ
Static IP address for each SP in the storage system.
Subnet mask for the LAN to which you will connect the storage system.
Default gateway for the LAN to which you will connect the storage system.
❑ For any installation, you will need:
ꢀ
ꢀ
ꢀ
A management host with a supported Internet browser for running Navisphere¤
Express and on the same network as the storage system management ports. This host
can also be the server. For supported hosts and browsers, refer to Tested Hardware
and OS List (THOL) on the SSR212PP support website.
A Linux or Windows host that is or will be a server with Fibre Channel connections to
the storage system. This server must have all required updates, such as hot fixes or
patches, installed. For supported hosts and required updates, refer to Tested Hardware
and OS List (THOL) on the SSR212PP support website.
Two separate network subnets: one for the storage-system iSCSI ports and one for the
management ports. The storage-system iSCSI ports must connect to an Ethernet NIC
or iSCSI HBA. The storage-system management ports can connect to either a 10/100
or 1-gigabit Ethernet LAN. A 1-gigabit Ethernet LAN is recommended for best
performance.
ꢀ
The following cables, which may already be connected for a configuration with an
existing storage system or server:
ꢁ
A CAT 5, CAT 5e, or CAT 6 network cable (100 meters maximum) for each iSCSI
port that you will use on the storage system. It is recommended to use CAT 6
cables for best performance.
ꢁ
Network cables as needed for the hosts.
ꢀ
A method for writing data to a virtual disk on the storage system to test the path from
a new HBA to the storage system.
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The Installation Procedure
STEP 1. Install the NICs or iSCSI HBAs in the server. See Procedure 7, "Installing NICs or iSCSI
HBAs in the Server," on page 63.
STEP 2. Install PowerPath on the server.
ꢀ
If the server is running Windows 2003 Server, ypu must install PowerPath iSCI using
ꢀ
install the fully-featured PowerPath application. (PowerPath for iSCSI does not
provide I/O load balancing).
STEP 4. If you have an SSR212PP2i system, install the UPS:
CAUTION
You must install the UPS that shipped with your storage system. You cannot use
any other type of UPS.
a. Unpack the UPS and save the packaging. Verify that the cables and mounting kit were
included.
b. Install the UPS in a 19-inch NEMA-standard cabinet/rack, as described in the
documentation provided with the UPS.
CAUTION
The UPS ships with the battery cable disconnected. Be sure to connect this cable
firmly when you install the UPS. If this cable is not securely connected, the
Replace Battery light turns on.
STEP 7. If you received a second power supply for your single-SP storage system, follow
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You may receive a second power supply that looks slightly different from the
original, and/or different from the illustrations in this note. The two versions are
functionally the same.
STEP 8. If you received disks modules that are not already installed in the storage system, follow
STEP 9. Connect the storage system to AC power.
ꢀ
page 91 when installing an SSR212PPf (single-SP) storage system.
ꢀ
when installing an SSR212PP2f (dual-SP) storage system.
connect the management ports.
STEP 11. Install the Navisphere Storage System Initialization Utility. See Procedure 17, "Installing
STEP 12. Verify that the storage system is powered up completely:
a. The Fault lights on each SP must be off and the Power light must be on. These lights
Power Supply A Fault LED
Power Supply A On
Power LED
Power On/Off Button SP A Boot/Fault LED
EMC3285
FIGURE 20. SSR212PPi Storage System Rear Lights (LEDs)
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Power Supply B Fault LED
PS B On
Power Supply A Fault LED
PS A On
SP B Boot/Fault LED
Power LED
Power On/Off Button
SP A Boot/Fault LED
EMC3272
FIGURE 21. SSR212PPi Storage System Rear Lights (LEDs)
b. The amber system Fault light visible from the front of the storage system must be off
Fault
Power
Disk Activity
SAB2934
Lock
FIGURE 22. Storage System Front Lights (LEDs)
the Server," on page 117 to connect to the server.
STEP 16. Configure the storage system.
ꢀ
ꢀ
To configure an existing storage system (one that was already connected to a server
STEP 17. For networked configurations utlilizing iSCSI NICs, configure CHAP security to
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Handling Field-Replaceable
Units (FRU)
5
This section describes the precautions that you must take and the general procedures you
must follow when removing, installing, and storing disk modules, fans, memory cards,
battery-backed cache cards, the storage processor assembly, or any other field replaceable
unit (FRU).
Power issues and FRUs
SSR212PP-Series storage systems are designed to be powered up continually. Disks and
power supplies are hot repairable; that is, you can replace faulty units while the system is
running. Front bezels should always be attached and each compartment should contain a
FRU or filler panel to ensure EMI compliance and proper air flow over the FRUs.
You should not remove a faulty FRU until you have a replacement available.
When you replace or install FRUs, you can inadvertently damage the sensitive electronic
circuits in the equipment by simply touching them. Electrostatic charge that has
accumulated on your body discharges through the circuits. If the air in the work area is
very dry, running a humidifier in the work area will help decrease the risk of ESD damage.
Follow the procedures below to prevent damage to the equipment.
Read and understand the following instructions:
ꢀ
Provide enough room to work on the equipment. Clear the work site of any
unnecessary materials or materials that naturally build up electrostatic charge, such as
foam packaging, foam cups, cellophane wrappers, and similar items.
ꢀ
ꢀ
Do not remove replacement or upgrade FRUs from their antistatic packaging until you
are ready to install them.
Before you service a storage system, gather together the ESD kit and all other
materials you will need. Once servicing begins, avoid moving away from the work
site; otherwise, you may build up an electrostatic charge.
ꢀ
ꢀ
An ESD wristband is supplied with your storage system. To use it, attach the clip of
the ESD wristband (strap) to any bare (unpainted) metal on the storage system; then
put the wristband around your wrist with the metal button against your skin.
Use the ESD kit when handling any FRU. If an ESD kit is not available, follow the
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Without an ESD Kit
When an ESD kit is not available, use the following procedures to reduce the possibility of
an electrostatic discharge by ensuring that your body and the subassembly are at the same
electrostatic potential.
These procedures are not a substitute for the use of an ESD kit. Follow them only when an
ESD kit is not available.
ꢀ
Before touching any FRU, touch a bare (unpainted) metal surface of the cabinet or
storage system.
ꢀ
Before removing any FRU from its antistatic bag, place one hand firmly on a bare
metal surface of the storage system, and at the same time, pick up the FRU while it is
still sealed in the antistatic bag. Once you have done this, do not move around the
room or touch other furnishings, personnel, or surfaces until you have installed the
FRU.
ꢀ
ꢀ
When you remove a FRU from the antistatic bag, avoid touching any electronic
components and circuits on it.
If you must move around the room or touch other surfaces before installing a FRU,
first place the FRU back in the antistatic bag. When you are ready again to install the
FRU, repeat these procedures.
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Installing HBAs in the
Server
6
For the server to communicate with the storage system Fibre Channel ports, the server
must have one or more supported host bus adapters (HBAs).
BeforeYou Start
To complete this procedure, you need one or more supported HBAs with the latest
supported BIOS and driver. For information on supported HBAs, BIOS, and drivers, refer
to Tested Hardware and OS List (THOL) on the SSR212PP support website.
Never mix HBAs from different vendors in the same server.
CAUTION
HBAs are very susceptible to damage caused by static discharge and need to be
handled accordingly. Before handling HBAs, observe the following precautions:
ꢁ
ꢁ
ꢁ
Store HBAs in anti-static bags.
Use a ground (ESD) strap whenever you handle HBAs.
Never plug or unplug HBAs with the power on. Severe component damage
can result.
STEP 1. If the server is powered up:
a. Shut down the server s operating system.
b. Power down the server.
c. Unplug the server s power cord from the power outlet.
STEP 2. Put on an ESD wristband, and clip its lead to bare metal on the server s chassis.
STEP 3. For each HBA that you are installing:
a. Locate an empty PCI bus slot.
b. Install the HBA following the instructions provided by the vendor.
STEP 4. Plug the server s power cord into the power outlet, and power up the server.
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Installing or Updating the HBA Driver
The server must run a supported HBA driver and that you install the latest supported
version of the driver. For information on the supported HBA drivers, refer to Tested
Hardware and OS List (THOL) on the SSR212PP support website.
BeforeYou Start
To complete this procedure, you will need:
❑ The latest version of the supported HBA driver. You can download the latest supported
version and instructions for installing the HBA driver from the vendor s website. The
HBA vendor websites are
Emulex website
http://www.emulex.com/ts/docoem/framemc.htm
QLogic website
On this site, select EMC in the "OEM-approved Drivers/Firmware" list at the bottom of
the page.
The HBA driver is also on the installation CD that ships with the HBA. This
version may not be the latest supported version.
❑ Any updates, such as hot fixes or service packs to the server s operating system that are
required for the HBA driver version you will install.
For information on any required updates, refer to one of the following:
ꢀ
ꢀ
Tested Hardware and OS List (THOL) on the SSR212PP support website.
The HBA vendor s website.
Installing the HBA Driver
STEP 1. Install any updates, such as hot fixes or service packs, to the server s operating system that
are required for the HBA driver version you are installing.
STEP 2. After installing any updates, reboot the server.
STEP 3. Install the driver following the instructions on the HBA vendor s website.
STEP 4. Reboot the server when the installation program prompts you to reboot.
STEP 5. If the installation program did not prompt you to reboot, then reboot the server when the
driver installation is complete.
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Installing PowerPath
on the Server
7
PowerPath manages the I/O paths between the server and storage system. PowerPath also
provides I/O load balancing.
You must install PowerPath¤ on each server that you will connect to the storage system.
Installing PowerPath on a Windows Server
For information on integrating PowerPath into an existing MSCS cluster, refer to the
PowerPath for Windows Installation and Administrator s Guide in the "Technical
documents" section on the SSR212PP support website.
STEP 1. Insert the PowerPath installation CD in the server s CD drive.
STEP 2. If autoplay is enabled on your server, start the installation as follows:
a. When the Getting Started page appears, click the appropriate link in the Installation
section for the server s operating system.
b. Select Run this program from its current location (or similar message depending on
your browser) and click OK.
You can install the software from the Installation section by clicking the appropriate
link for your operating system.
STEP 3. If autoplay is not enabled on the server, start the installation as follows:
a. On the Windows taskbar, select StartꢀRun.
b. In the Run window, enter the name of the appropriate installation program below, and
click OK.
ꢁ
ꢁ
ꢁ
For Windows 2000: d:\2000\EMCPP.W2000.x.y.z.GA.exe
For 32-bit Windows Server 2003: d:\2003\EMCPP.W2003_32. x.y.z.GA.exe
For 64-bit Windows Server 2003: d:\2003\EMCPP.W2003.64.x.y.z.GA.exe
where d is the CD drive letter and x.y.z is the revision of PowerPath on the CD.
If you do not know whether your Windows 2003 Server is 32-bit or 64-bit, right-click
on My Computer and select Manage. Select System InformationꢀSystem Summary.
View the System Type option. If x86 displays, you have a 32 bit system. If IA64
displays, you have a 64 bit system.
Alternatively, double-click the platform-specific .exe icon in the appropriate directory
on the CD.
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STEP 4. In the Choose Language Setup window, select the language you want for this installation
and click OK.
PowerPath installer is available in Brazilian Portuguese, English, French, German, Italian,
Korean, Japanese, Latin American Spanish, and simplified Chinese.
STEP 5. In the setup wizard Welcome window, click Next.
STEP 6. In the SSR212PP-Series window, select Yes and click Next.
STEP 7. Enter your name and organization and click Next.
STEP 8. In the Custom Setup dialog box, select Next (you cannot connect any third-party storage
systems to the server).
CAUTION
If you want to specify another directory, do not specify the Windows System
directory for your system (specified by the %SYSTEMROOT% environmental
variable). PowerPath will not function correctly if it is installed in this directory.
STEP 9. In the Ready to Install the Program dialog box, click Install.
STEP 10. In the InstallShield Wizard Completed dialog box, click Finish.
STEP 11. When the setup wizard asks whether you want to reboot the host, click Yes.
When PowerPath is installed, the following PowerPath Administrator icon appears on the
Windows taskbar:
Installing a PowerPath Patch
Check the PowerPath part of the Register to download software section on the SSR212PP
support website for a patch to the version of PowerPath that you just installed. If such a
patch is available, install it, as described in the readme file that accompanies the patch.
Installing PowerPath on a Linux Server
If PowerPath is already running on the server, check the "Register to download software"
section on the SSR212PP support website for a more recent version of PowerPath or a
patch to the version of PowerPath installed on the server, and install it instead. If the server
is running the most recent version and a patch exists for this version, install it, as described
in the readme file that accompanies the patch.
STEP 1. Save your Linux kernel and back up your system.
STEP 2. Change the Linux kernel:
a. If you load the HBA driver as a module, install its binary file in the appropriate
location:
i. If you are using Red Hat Linux:
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/lib/modules/‘uname -r‘/drivers/addon/hbaDriver
where uname -r is the string returned to the console by the uname -r command
and hbaDriver is the name of the HBA driver module
ii. If you are using SuSE Linux:
/lib/modules/‘uname -r‘/drivers/scsi
where uname -r is the string returned to the console by the uname -r command
If you have Red Hat Linux 3.0 SuSE Linux SLES 8 SP3 or higher, you no
longer need to build the HBA driver modules and copy them to the above
location. The pre-built kernel now includes these modules.
b. Save your kernel change.
STEP 3. Change the Linux configuration files.
a. If you are using Red Hat Linux:
i. Edit the /etc/modules.conf file to add an alias for each HBA.
In the sample file below, the second and third lines are aliases for HBAs;
driverModule in these entries is the name of the HBA driver module.
alias eth0 eepro100
alias scsi_hostadapter1 driverModule
alias scsi_hostadapter2 driverModule
ii. Enable the following parameters in /etc/modules.conf:
max_scsi_luns
scsi_allow_ghost_devices
You must enable the last parameter so that you do not have to recompile the
kernel to properly connect a Linux server to the storage system.
For example, in the following modules.conf file, the max_scsi_luns and
scsi_allow_ghost_devices parameters are enabled:
alias parport_lowlevel parport_pc
alias scsi_hostadapter1 driverModule
alias scsi_hostadapter2 driverModule
alias eth0 tla
options scsi_mod max_scsi_luns=256 scsi_allow_ghost_devices=1
where driverModule is the name of the HBA driver module for accessing the
storage system.
iii. Edit the /etc/modprobe.conf file as follows:
^
For QLogic HBAs, make sure that the ql2xfailover and the ConfigRequired
parameters are set to 0:
options qla2xxx q12xfailover=0 ConfigRequired=0
The variables x and xxx vary with the HBA model.
^
For Emulex HBAs, set the value of the lpfc_nodev_tmo parameter to 10:
options lpfc lpfc_nodev_tmo=10
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iv. Run ls -l /boot and look at the line with initrd ->to determine which initrd file is
used.
v. Run uname -r to display the kernel version.
vi. Enter:
/sbin/mkinitrd -f -v initrd kernel
where initrd is the configuration identified by ls -l /boot and kernel is the kernel
version displayed by uname -r
b. If you are using SuSE Linux
i. Verify that the HBA driver is always loaded after the internal SCSI adapter driver
as specified by the /etc/sysconfig/kernel file. For example, in the following file,
driverModule (the HBA driver module for accessing the storage system) is always
loaded after all internal SCSI drivers are loaded:
INTINRD_MODULES="scsi_mod sd_mod cciss reiserfs driverModule"
When loading HBA drivers into the ramdisk, make sure that the HBA module
name used in /etc/sysconfig/kernel is the same as that used in the /etc/modules.conf
file.
ii. Enable the following parameters in /etc/modules.conf:
max_scsi_luns
scsi_allow_ghost_devices
You must enable the last parameter so that you do not have to recompile the
kernel to properly connect a Linux host to the storage system.
For example, in the following modules.conf file, the max_scsi_luns and
scsi_allow_ghost_devices parameters are enabled:
alias parport_lowlevel parport_pc
alias scsi_hostadapter1 driverModule
alias scsi_hostadapter2 driverModule
alias eth0 tlan
options scsi_mod max_scsi_luns=256 scsi_allow_ghost_devices=1
where driverModule in the second and third lines is the name of the HBA
driver module for accessing the storage system.
When loading HBA drivers into the ramdisk, make sure that the HBA module
name in /etc/sysconfig/kernel is the same as that used in the /etc/modules.conf
file.
iii. 3. Edit the /etc/modprobe.conf.local file as follows:
^
For QLogic HBAs, make sure that the ql2xfailover and the ConfigRequired
parameters are set to 0:
options qla2xxx q12xfailover=0 ConfigRequired=0
The variables x and xxx vary with the HBA model.
^
For Emulex HBAs, set the value of the lpfc_nodev_tmo parmeter to 10:
options lpfc lpfc_nodev_tmo=10
iv. Run uname -r to display the kernel version.
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v. Run ls -l /boot to determine which initrd and vmlinuz files are used for the kernel
version. (The names of both the initrd and vmlinuz files include the kernel
version.)
vi. Enter:
/sbin/mk_initrd -k vmlinuz -i initrd
where vmlinuz and initrd correspond to the configuration identified by ls - boot
for the kernel version.
STEP 4. Log in as root.
STEP 5. If you are install PowerPath 4.5 and want the PowerPath installation messages to appear in
Chinese (simplified), French, German, Italian, Japanese, Korean, Portuguese (Brazilian),
or Spanish (Latin American), enter one of the following commands:
export LANG=locale_ID.utf8
or
setenv LANG=locale_ID.utf8
where locale_ID is defined in Table 2.
If you set the LANG variable to unsupported locale ID, PowerPath continues the
installation in English.
TABLE 2.
Language Locale ID
Language
Locale ID
zh_CN.utf8
En_US.utf8
fr_FR.utf8
de_DE.utf8
it_IT.utf8
Chinese (simplified)
English
French
German
Italian
ja_JP.utf8
ko_KR.utf8
pt_BR.utf8
es_ES.utf8
Japanese
Korean
Portuguese (Brazliian)
Spanish (Latin American)
STEP 6. Insert the PowerPath CD into the server s CD drive.
STEP 7. Create the directory /cdrom as the mount point for the CD:
mkdir /cdrom
STEP 8. Mount the PowerPath CD on /cdrom:
romount -o ro /dev/cdrom /cdromm
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STEP 9. Change to the LINUX directory for your kernel and revision of PowerPath that you are
installing. For example,
ꢀ
ꢀ
ꢀ
ꢀ
For a Red Hat 2.4 kernel and PowerPath 4.3.4:
cd /cdrom/LINUX/2.4/pp4.3.4/rhel
For a Red Hat 2.6 kernel and PowerPath 4.5:
cd /cdrom/LINUX/2.6/pp4.5/rhel
For a SuSE 2.4 kernel and PowerPath 4.3.4:
cd /cdrom/LINUX/2.4/pp4.3.4/sles
Fora SuSE 2.6 kernel and PowerPath 4.5:
cd /cdrom/LINUX/2.6/pp4.5/sles
STEP 10. Install PowerPath:
rpm -ivh EMCpower.LINUX-version-build.package
where version, build, and package are the version number, build number, and package
name of PowerPath on the CD.
You have completed the PowerPath installation. After running the rpm command, certain
error messages may occur. The following acceptable warning appears when loading the
PowerPath drivers:
Warning: loading /lib/modules/’uname -r’ /kernel/drivers/addon/emcpower/emcp.o
will taint the kernel:
no license
This message is expected and is acceptable behavior for loading a binary module.
Initially, PowerPath attempts to load modules with version-checking enabled. If the
pre-selected module load fails, the software silently (without issuing error
messages) loads the module with version-checking disabled.
STEP 11. Start PowerPath:
/etc/init.d/PowerPath start
Use the above command only for loading and unloading the EMC¤ PowerPath module.
If the LANG variable is set to the locale ID listed in Table 2, the messages from the
PowerPath start command are displayed in that language.
STEP 12. Unmount the CD:
cd / umount /cdrom
STEP 13. Remove the PowerPath installation CD from the CD drive.
STEP 14. For Linux, verify that all HBA, NIC and iSCSI HBA driver extensions are loaded:
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If you loaded the HBA, NIC or iSCSI HBA driver as a module (not as a static kernel
driver), use lsmod to verify that all extensions are loaded.
If you built the HBA, NIC or iSCSI HBA driver as a module and modified
/etc/modules.conf to specify that the driver be loaded before the PowerPath drivers, the
driver name appears in the lsmod output below the PowerPath drivers. For example:
ModuleSizeUsed byTainted: PF
emcphr96240(unused)
emcpmpap1050240(unused)
emcpmpaa721600(unused)
emcpmpc920640(unused)
emcpmp558400(unused)
emcp5425200[emcphr emcpmpap emcpmpaa
emcpmpc emcpmp]
emcpsf68200[emcpmpap emcp]
...
driver_module6843801
sg mptscsih driver_module sd_mod]
where driver_module is the name of the HBA, NIC or iSCSI HBA driver module.
The /etc/modules.conf file should look similar to the following:
alias ppfilter emcpsf
pre-install emcpsf modprobe sd_mod
add options emcp hostid=00:C0:9F:35:4A:30
insmod_opt=-N
alias power_path emcp
add above emcp emcpmp
add above emcpmp emcpmpc
add above emcpmpc emcpmpaa
add above emcpmpaa emcpmpap
add above emcpmpap emcphr
add above emcphr emcpioc
post-install emcpioc rmmod emcpioc
add options emcp managedclass="hpxp","ess","hitachi","hphsx"
add below emcp driver_module
alias scsi_ppfilteradapter driver_module
post-install emcpsf modprobe driver_module
pre-remove emcpsf rmmod emcpmpaa emcpmpc emcpmp emcp
where driver_module is the name of the HBA, NIC or iSCSI HBA driver module.
STEP 15. If the server is running SuSE Linux SLES8 and a kernel version newer than 2.4.21-138,
rebuild the ramdisk:
a. Edit the /etc/sysconfig/kernel file to ensure that the HBA driver is always loaded after
the internal SCSI adapter driver as follows:
INITRD_MODULES="scsi_mod sd_mod cciss reiserfs driver_module"
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where driver_module is the name of theHBA drivermodule used to access the storage
system.
For SuSE Linux, when loading HBA drivers into the ramdisk, make sure that
the HBA module name used in /etc/sysconfig/kernel is the same as that used
in the /etc/modules.conf file.
b. Create the new ramdisk:
mk_initrd -i /boot/ramdisk_name -k /boot/ kernel_image_name
STEP 16. Check the PowerPath part of the "Register to download software" section on the
SSR212PP support website for a patch to the version of PowerPath that you just installed.
If such a patch is available, install it, as described in the readme file that accompanies the
patch.
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Installing PowerPath iSCI for
Windows 2003 Server
8
Installing PowerPath iSCSI for Windows 2003 Server
If the server that you will connect to the storage system is running Windows 2003 Server,
you must install PowerPath¤iSCSI on the server.
PowerPath iSCSI manages the I/O paths between the server and storage system and is
required for Microsoft MPIO-based failover.
BeforeYou Start
To complete this procedure, you need to
❑ Locate the PowerPath iSCSI CD that shipped with the storage system.
❑ Locate the card with the PowerPath license key that shipped with the storage system.
For information on integrating PowerPath iSCSI into an existing MSCS cluster,
refer to the PowerPath for Windows Installation and Administrator s Guide on the
SSR212PP support website.
STEP 1. Insert the PowerPathor PowerPath iSCSI installation CD in the server s CD drive.
STEP 2. If autoplay is enabled on your server, start the installation as follows:
a. When the Getting Started page appears, click the appropriate link in the Installation
section for the server s operating system.
b. Select Run this program from its current location (or similar message depending on
your browser) and click OK.
You can install the software from the Installation section by clicking the appropriate
link for your operating system.
STEP 3. If autoplay is not enabled on the server, start the installation as follows:
a. On the Windows taskbar, select StartꢀRun.
b. In the Run window, enter the name of the appropriate installation program below, and
click OK.
ꢁ
ꢁ
For 32-bit Windows Server 2003: d:\2003\EMCPP.W2003_32. x.y.z.GA.exe
For 64-bit Windows Server 2003: d:\2003\EMCPP.W2003.64.x.y.z.GA.exe
where d is the CD drive letter and x.y.z is the revision of PowerPath on the CD.
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If you do not know whether your Windows 2003 Server is 32-bit or 64-bit, right-click
on My Computer and select Manage. Select System InformationꢀSystem Summary.
View the System Type option. If x86 displays, you have a 32 bit system. If IA64 or
AMD64 displays, you have a 64 bit system.
Alternatively, double-click the platform-specific .exe icon in the appropriate directory
on the CD.
STEP 4. In the setup wizard Welcome window, click Next.
STEP 5. Enter your name and organization and click Next.
STEP 6. In the Custom Setup dialog box, select Next (you cannot connect any third-party storage
systems to the server). It is recommended that you install PowerPath iSCSI in the default
directory.
CAUTION
If you want to specify another directory, do not specify the Windows System
directory for your system (specified by the %SYSTEMROOT% environmental
variable). PowerPath will not function correctly if it is installed in this directory.
STEP 7. In the Ready to Install the Program dialog box, click Install.
STEP 8. If the Licensing Tool is displayed, enter your 24-digit SSR212PP-Series registration
number in the License Key field, then click Add and OK.
Type the registration number, including the dashes, exactly as written on the card
you received with the software. To reduce common typographical errors, the
License Key field accepts either uppercase or lowercase letters, and certain
numbers and letters are interchangeable. Specifically, entering the alphabetic letters
O, I, S, and B is equivalent to entering the numbers, 0, 1, 5, and 8.
If you have additional questions about entering licenses, consult the online help file
by pressing F1 from the EMC Licensing Tool. You must have Internet Explorer 5.0
or higher to view these files. If you do not have this browser installed, you may still
view the help file, EmcLicTool.chm, directly from the \help folder on the PowerPath
installation CD.
STEP 9. In the InstallShield Wizard Completed dialog box, click Finish.
STEP 10. When the setup wizard asks whether you want to reboot the host, click Yes.
Upgrading from PowerPath to PowerPath iSCSI
PowerPath iSCSI is required for Microsoft MPIO-based failover. See the PowerPath
release notes for supported operating system versions.
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CAUTION
This procedure requires that you reboot the server that you want to upgrade.
BeforeYou Start
❑ Verify that the server is running PowerPath version 4.3.1 or higher.
❑ Obtain the latest version of PowerPath iSCSI on a CD or download it from the SSR212PP
support website.
STEP 1. Uninstall PowerPath:
a. Close all applications and client files on the server that are sending data to or receiving
data from the storage system; that is stop I/O to the system.
b. When I/O is stopped, uninstall PowerPath using Add/Remove Programs:
i. Open the Control Panel, double-click Add/Remove Programs.
For Windows 2000 or Windows Server 2003, select the PowerPath 32-bit
version or the PowerPath 64-bit version depending on whether you have
installed the 32-bit or 64-bit package.
ii. Click Remove.
iii. When prompted to remove PowerPath, click Yes.
iv. When prompted to restart the host, click Yes.
c. Restart all applications on the server.
STEP 2. Install PowerPath iSCSI using the procedure just described.
For information on integrating PowerPath iSCSI into an existing MSCS cluster,
refer to the PowerPath for Windows Installation and Administrator s Guide on the
SSR212PP support website.
Installing a PowerPath or PowerPath iSCSI Patch
Check the PowerPath part of the Register to download software section on the SSR212PP
support website for a patch to the version of PowerPathor PowerPath iSCSI that you just
installed. If such a patch is available, install it, as described in the readme file that
accompanies the patch.
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Installing the Navisphere
Server Utility
9
Read this section for all configurations.
You must install the Navisphere Server Utility on each server connected to the storage
system. If you do not disable the Registration Service option during the installation (it is
enabled by default), the Server Utility automatically registers the server s HBAs with the
storage system.
BeforeYou Start
To complete this procedure, you need the SSR212PP-Series Server Support Products CD
that shipped with the storage system. If your server is connected only to an SSR212PPf or
SSR212PP2f storage system and is running Navisphere Server Utility version 2.19 or
lower, you must install the later version that shipped with your SSR212PPf or
SSR212PP2f storage system.
Installing the Navisphere Server Utility on a Windows Server
STEP 1. Insert the SSR212PP-Series Server Support Products CD into the server s CD.
STEP 2. Select your language, if prompted for it.
STEP 3. From the main menu, click Install Products on Server.
STEP 4. From the Install Products menu, click Navisphere Server Utility to open the installation
wizard.
STEP 5. Follow the instructions on the screen and accept all the defaults.
Do not disable the Registration Service option (it is enabled by default as part of the
Complete setup type). The Registration Service option automatically registers the
server s HBAs with the storage system after the installation and updates server
information to the storage system whenever the server configuration changes (for
example, you mount new volumes or create new partitions).
STEP 6. If you are prompted about updating information when the server starts, click Yes.
STEP 7. If you are prompted to reboot the server, click Yes.
STEP 8. Click Finish to exit the wizard.
STEP 9. Remove the CD from the server s CD drive.
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Installing the Navisphere Server Utility on a Linux Server
STEP 1. Insert the SSR212PP-Series Server Support Products CD into the server s CD drive.
STEP 2. Install the Navisphere Server Utility on the server:
rpm -i naviserverutil-version-build.platform.rpm
where version and build are the version number and the build number of the Navisphere
Server Utility on the CD (for example, 6.17.1.1.27-1) and platform is your Linux platform
number (for example, i386, ia64, or x86-64).
For a SuSE ia64 system, use t
rpm -i naviserverutil_suse-version-build.platform.rpm
If you are upgrading the utility on the server, use -u in place of -i.
The installation process adds a line to the /etc/rc.d/rc.local file that starts the server utility
on reboot, provided root has execute permission for the /etc/rc.d/rc.local file.
STEP 3. Remove the CD from the server s CD drive.
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Unpacking the SSR212PP-
Series Storage System
10
CAUTION
The equipment is heavy and should be installed into a rack by two people. To
avoid personal injury and/or damage to the equipment, do not attempt to lift and
install the unit into a rack without a mechanical lift and/or help from another
person.
STEP 1. Unpack the storage system as shown on the shipping carton.
CAUTION
The disks in slots marked 0-2 (SSR212PPf, single-SP storage system) and slots
marked 0-3 (SSR212PP2f, dual-SP storage system) are preloaded with storage
system software according to their slot assignment before shipment. Do not move
a preloaded disk from its assigned slot to another slot. Doing so causes the
storage system to function improperly. Remove a preloaded disk only to replace
it.
0
1
2
3
EMC2794a
FIGURE 23. Location of Disks 0–3
You will need this number later when you initialize the storage system.
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Installing the SSR212PP-
Series Storage System
11
Read this section if you are installing a new storage system.
Install the storage system in a 19-inch NEMA-standard cabinet/rack.
BeforeYou Start
To complete this procedure, you need the mounting hardware that shipped with the storage
system.
Installing the Storage System in a Cabinet
a. From the front of the cabinet, insert the alignment pins in the rear channel of the
cabinet.
Insert the pins in the 1/2-inch space between channel holes, which aremarked by a
dash ( ) in some cabinets.
b. Pull the adjustable rail forward, and attach it with two screws to the inside of the front
channel in the two center holes.
c. From the rear of the cabinet, secure each rail to the rear channel. Leave the screws
slightly loose to allow for adjustment after you load the storage system on the rails.
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Alignment Pins
Adjustable Rail
Right Rear
Right Front
Screw (2)
Screw (2)
Alignment
Pin (2)
Mounting Rail
Mounting Rail
EMC2829
FIGURE 25. Installing Mounting Rails in a 19-inch NEMA Cabinet
STEP 2. If the front bezel is attached, remove it.
STEP 3. Remove the four screws that are secured with washers and nuts to the black plastic latch
EMC3035
FIGURE 26. Removing the Latch Bracket Screws, Washers, and Nuts
CAUTION
The equipment is heavy and should be installed into a rack by two people. To
avoid personal injury and/or damage to the equipment, do not attempt to lift and
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install the unit into a rack without a mechanical lift and/or help from another
person.
STEP 4. From the front of the cabinet, slide the storage system onto the rails so that the cutouts in
If the chassis does not slide all the way into the cabinet, you may need to further loosen
the screws that hold the rear of the rails in place; then adjust the rail to allow the tabs to fit
into the cutouts.
EMC2799
FIGURE 27. Sliding the Chassis into the Cabinet
STEP 5. Use the four latch bracket screws to secure the storage system and latch brackets to each
AF000637
FIGURE 28. Securing the Chassis and Installing the Front Bezel
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Installing a Second
Power Supply
12
Read this section if you received a second power supply for your single-SP storage
system.
You may receive a second power supply that looks slightly different from the
original, and/or different from the illustrations in this note. The two versions are
functionally the same.
For greater clarity, the illustrations in this note show the storage system chassis
independent of a cabinet or deskside mounting hardware.
wriststrap attached to your wrist as you perform the following steps.
STEP 2. Push the slide latch to the left as you pull the power supply filler module straight out of the
Slide Latch
EMC3255
FIGURE 29. Removing a Power Supply Filler Module
STEP 3. Gently insert the new power supply straight into the storage system, being sure to
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EMC3256
FIGURE 30. Installing a Second Power Supply
STEP 4. Pull the wire retention bail out of the way, plug the power cord into the new power supply,
Retention
bail
EMC3297
EMC3297
FIGURE 31. Plugging in the Power Cord
STEP 5. If power is not on, press the power button to begin powerup, and verify that the power
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Power Supply B Fault LED
PS B On
Power Supply A Fault LED
PS A On
SP B Boot/Fault LED
Power LED
Power On/Off Button
SP A Boot/Fault LED
EMC3272
FIGURE 32. Power button and Indicators for an SSR212PPf with Two Power
Supplies
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Installing a Disk Module
13
This procedure describes how to install a disk module in an SSR212PP-Series storage
system.
For greater clarity, the illustrations in this document show the storage system chassis
independent of a cabinet or deskside mounting hardware.
Handling Disk Modules
Disk modules are extremely sensitive electronic components. Always handle a disk
module gently, and observe the following guidelines:
ꢀ
Whenever possible or practical, replace a disk module with another of the same
model. Refer to the SSR212PP support website for a list of approved disk
replacements.
ꢀ
ꢀ
Follow the instructions in the section on handling FRUs in this document.
Disk modules are sensitive to the extreme temperatures sometimes encountered
during shipping. It is recommended that you leave new disk modules in their shipping
material, and expose the package to ambient temperature for at least four hours before
attempting to use the new modules in your system.
ꢀ
ꢀ
Wear a properly attached ESD wristband when removing or replacing a disk module.
When removing a disk module, pull the module partially out of the slot, then wait 30
seconds for the drive to spin down before removing it.
ꢀ
Place modules on a soft, antistatic surface, such as an industry-standard antistatic
foam pad or the container used to ship the module. Never place a disk module directly
on a hard surface.
ꢀ
ꢀ
ꢀ
Never hit modules, stack modules, or allow them to tip over or fall.
Avoid touching any exposed electronic components and circuits on the disk module.
Do not remove a faulty disk module until you have a replacement module (with the
same or an approved part number) or a filler module available. The part number
(PN005xxxxxx) appears on the front of the module.
wriststrap attached to your wrist as you perform the following steps.
STEP 2. Unlock and remove the front bezel.
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CAUTION
The bezel is required for EMI compliance when the storage system is powered
up. Remove it only to replace or add a disk module.
a. Insert the key that shipped with your storage system into the bezel lock, and turn it to
b. Press the two latch buttons on the bezel surface toward each other to release the bezel
c. Pull the bezel off the cabinet and put it on a clean, static-free surface.
SAB2937
FIGURE 33. Unlocking and Removing the Front Bezel
STEP 3. Locate the slot where you want to install the disk module, and remove the filler module
Filler
EMC2810
FIGURE 34. Removing a Disk Filler Module
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STEP 4. Install the disk module.
CAUTION
The disk module you install must have a green handle. Do not install a disk
module with a blue-grey or dark metallic grey handle. If you are installing
multiple disk modules in a storage system that is powered up, wait at least 10
seconds before sliding the next disk module into position.
a. Align the replacement module with the guides in the slot.
b. Gently push the module completely into the slot, and ensure that the module seats
disk module Active light flashes to indicate the disk spin-up sequence.
Disk
Label
(Push Here)
EMC2812
FIGURE 35. Installing a Disk Module
STEP 5. Install and lock the front bezel:
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Connecting AC Power to a
Single-SP Storage System
14
This section describes how to connect power to an SSR212PPf (single-SP) storage
system.
BeforeYou Start
To complete this procedure, you need the AC power cables appropriate to your power
source. These cables shipped with the storage system.
STEP 1. For each power supply in the storage system, plug a storage system power cord into the
O F F
O F F
O
O
I
I
O N
O N
O F F
O N
O F F
O N
O
O
I
I
O F F
O N
O F F
O N
O
O
I
I
EMC3277
FIGURE 37. Connecting AC Power to an SSR212PPf or SSR212PPi with One Power
Supply
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O F F
O F F
O
O
I
I
O N
O N
O F F
O N
O F F
O N
O
O
I
I
O F F
O N
O F F
O N
O
O
I
I
EMC3296
FIGURE 38. Connecting AC Power to an SSR212PPf or SSR212PPi withTwo Power
Supplies
STEP 2. For each power supply in the storage system, secure the power cord with the retention bail
The retention bail prevents the power cord from pulling out of the connector and causing
the storage system to power down unexpectedly.
Retention
Bail
EMC3265
FIGURE 39. Securing the Power Cord with a Retention Bail
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STEP 3. For each power supply in the storage system, plug the storage system power cord into the
The power supply on light turns on indicating that the power supply is connected to an
active AC power source.
STEP 4. If the storage system will be connected to the server through a switch, plug one end of
the switch power cord to the power connector on the switch and the other end into an AC
power source, as described in the documentation that shipped with the switch.
CAUTION
Press the power button only briefly to power up the storage system. Pressing the
power button for more than four seconds while the storage system powers up
may affect initialization parameters.
The green power lights (LEDs) on the front and back of the storage system turn on and
Figure 42). The amber SP Boot/Fault light flashes to indicate powerup progress. The Disk
Activity lights on the front of the storage system light intermittently as the disks spin up
and disk I/O begins.
When powerup is complete (usually in 5 to 6 minutes), the SP Boot/Fault light goes off. If
the storage system does not power up within several minutes and/or the fault indicator
goes on, refer to the "Troubleshoot" section on the SSR212PP support website or the
SSR212PP-Series Documentation CD.
Fault
Power
Disk Activity
SAB2934
Lock
FIGURE 40. Storage System Front LEDs
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Power Supply A Fault LED
Power Supply A On
Power LED
Power On/Off Button SP A Boot/Fault LED
EMC3285
FIGURE 41. Power Button and Rear LEDs on an SSR212PPf with One Power
Supply
Power Supply B Fault LED
PS B On
Power Supply A Fault LED
PS A On
Power LED
Power On/Off Button
SP A Boot/Fault LED
EMC3328
FIGURE 42. Power Button and Rear LEDs on an SSR212PPf with Two Power
Supplies
If the amber System Fault light is on after powerup, a fault exists somewhere in the
storage system. If the amber light specific to a power supply, SP, or disk is on, then that
part is faulted.
Powering the Storage System Down
For an orderly shutdown that protects your cache data, use the storage system power
button. The storage system takes a full minute to power down after you press the power
button. So after powering down the storage system, wait one minute before powering it on
again. If storage system power is turned off by the power button or by a software
shutdown, you must press the power button to reapply power. If you power down the
storage system by unplugging the power cord, the storage system powers up as soon as it
is reconnected to the AC power source.
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Connecting AC Power to a
Dual-SP Storage System
15
BeforeYou Start
To complete this procedure, you will need
❑ The sense cable, which is the serial cable that shipped with the UPS. This cable allows
Navisphere Express to monitor UPS status.
❑ The AC power cables appropriate to your power source. These cables shipped with the
storage system.
CAUTION
You must connect the UPS serial cable to the purple UPS (+ -) port on SPA. This
connection is required for write-cache operation, and allows Navisphere Express
to monitor the UPS. A standard null-modem or other service serial cable may
look identical to the unique serial cable supplied with the UPS, but it will not
work. Be sure to use the unique serial cable that came with the UPS.
STEP 2. Plug the free end of the UPS serial cable into the UPS connector (labeled with a +- battery
O F F
O F F
O
O
I
I
O N
O N
O F F
O N
O F F
O N
O
O
I
+ -
I
UPS
O F F
O N
O F F
O N
O
O
UPS Serial cable
I
I
Power Cords
EMC3264
FIGURE 43. Connecting the UPS Serial Cable to an SSR212PP2f or SSR212PP2i
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STEP 3. Plug a storage system power cord into the power connector power supply in the storage
O F F
O F F
O
O
I
I
O N
O N
O F F
O N
O F F
O N
O
O
I
+ -
I
UPS
O F F
O N
O F F
O N
O
O
UPS Serial cable
I
I
Power Cords
EMC3264
FIGURE 44. Connecting AC Power to an SSR212PP2f or SSR212PP2i
The retention bail prevents the power cord from pulling out of the connector and causing
the storage system to power down unexpectedly.
Retention
Bail
EMC3279
FIGURE 45. Securing the Power Cord with the Retention Bail
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CAUTION
Do not connect more than one power supply to the UPS.
a. Plug the storage system power cord connected to the SP A power supply into the
power outlet on the UPS.
b. For a 100V or 120V UPS, plug the attached UPS power cord into an AC power
source.
c. For a 230V UPS, plug one end of the loose UPS power cord into the UPS power outlet
and the other end into an AC power source in the cabinet (power distribution unit).
d. Turn on UPS power as described in the documentation that shipped with the UPS.
e. Plug the power cord connected to the SP B power supply into the AC power source in
the cabinet (power distribution unit).
Do not connect the SP B power supply to the same power source/circuit as
the UPS.
On each power supply, the power supply on light turns on indicating that the power
supply is connected to an active AC power source.
STEP 6. If the storage system will be connected to the server through a switch, plug one end of
the switch power cord to the power connector on the switch and the other end into an AC
power source, as described in the documentation that shipped with the switch.
CAUTION
Press the power button only briefly to power up the storage system. Pressing the
power button for more than four seconds while the storage system powers up
may affect initialization parameters.
The green power lights (LEDs) on the front and back of the storage system turn on and
amber SP Boot/Fault light flashes to indicate powerup progress. The Disk Activity lights
on the front of the storage system light intermittently as the disks spin up and disk I/O
begins.
When powerup is complete (usually in 5 to 6 minutes), the SP Boot/Fault light goes off. If
the storage system does not power up within several minutes and/or the fault indicator
goes on, refer to the "Troubleshoot" section on the SSR212PP support website or the
SSR212PP-Series Documentation CD.
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Fault
Power
Disk Activity
SAB2934
Lock
FIGURE 46. Storage System Front LEDs
Power Supply B Fault LED
PS B On
Power Supply A Fault LED
PS A On
SP B Boot/Fault LED
Power LED
Power On/Off Button
SP A Boot/Fault LED
EMC3272
FIGURE 47. SSR212PP2f Storage System Power Button and Rear LEDs
If the amber System Fault light is on after powerup, a fault exists somewhere in the
storage system. If the amber light specific to a power supply, SP, or disk is on, then that
part is faulted.
Powering the Storage System Down
For an orderly storage system shutdown that protects your cache data, use the storage
system power button (not the UPS power switch). The storage system takes a full minute
to power down after you press the power button. So after powering down the storage
system, wait one minute before powering it on again. If storage system power is turned off
by the power button or by a software shutdown, you must press the power button to
reapply power. If you power down the storage system by unplugging the power cord, the
storage system powers up as soon as it is reconnected to the AC power source.
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Connecting the Management
Ports to the LAN
16
BeforeYou Start
To complete this procedure, you need a standard CAT 5, CAT 5e, or CAT 6 network cable
for:
❑ Each management port on each storage system SP that you will connect to the LAN.
❑ Each Fibre Channel switch, if you are using them, and if you want to manage with the
switch vendor s management software.
STEP 1. For each SP, connect one end of a LAN cable to the management port on the SP and the
Be sure you do not connect the management LAN cable to the serial/service or UPS
ports. If you connect the management ports directly to a network switch, you must
use switch ports that support auto-negotiation or are configured for half-duplex
operation.
Management
LAN port
Service
Management LAN
CAT-5, -5E, -6 Cable
EMC3276
FIGURE 48. SSR212PPf Management LAN Port Connections
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SP B
Management
LAN Port
Service
UPS
SP A
Management
LAN Port
Service
10/100/1000 LAN
CAT-5, 5E, 6 Cables
EMC3267
FIGURE 49. SSR212PP2f Storage System Management LAN Port Connections
STEP 2. If your configuration emplys one or more Fibre Channel switches,
a. If you want to use the switch management software, connect one end of a LAN cable
to the LAN management port on each switch and the other end to the network from
management software to zone switches that are not hard zoned.
To LAN
Switch
O F F
O
O F F
O
I
I
!
O N
O N
0
4
1
5
2
6
3
7
O F F
O N
O F F
O N
O
O
I
I
To LAN
EMC3292
FIGURE 50. SSR212PPf Storage System and Switch LAN Connections
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To LAN
To LAN
Switch
O F F
O
O F F
O
I
I
!
O N
O N
0
4
1
5
2
6
3
7
O F F
O N
O F F
O N
O
O
I
I
To LAN
EMC3293
FIGURE 51. SSR212PP2f Storage System and Switch LAN Connections
b. If the switch is not hard-zoned, locate the zoning wizard CD that shipped with the
switch.
c. Using the instructions provided with the CD, run the zoning wizard and select the
zone configuration that is applicable to the way you connected the storage system SP
ports and the server HBA ports to the switch.
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Installing the Navisphere
Storage System
17
Initialization Utility
BeforeYou Start
❑ You will need the SSR212PP-Series Server Support Products CD for this procedure.
Installing on a Windows Host
STEP 1. Insert the SSR212PP-Series Server Support Products CD into the CD drive of a Windows
host on the same subnet as the storage system.
STEP 2. Select your language, if prompted for it.
STEP 3. From the main menu, click Install Utilities on Server.
STEP 4. From the Install Products menu, click Navisphere Storage System Initialization Utility to
open the installation wizard.
STEP 5. Proceed until the installation is complete. A user interface (UI) and a text-based version of
the utility are installed.
STEP 6. Remove the CD from the host s CD drive.
Installing on a Linux Host
STEP 1. Insert the SSR212PP-Series Server Support Products CD into the CD drive of a Linux
host on the same subnet as the storage system.
STEP 2. Install the Navisphere Storage System Initialization Utility on the Linux host :
rpm -ivh naviinittool-version-build.i386.rpm
where version and build are the version number and the build number of the Navisphere
Storage System Initialization Utility on the CD. For example, 6.19.1.1.10.
If you are upgrading the utility on the server, use -U in place of -i.
STEP 3. When installation is complete, remove the CD from the host s CD drive.
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Running the Navisphere
Storage System Initialization
Utility on a FC Configuration
18
STEP 1. Start the Navisphere Storage System Initialization Utility:
ꢀ
On a Windows host, click
Start Programs EMC Navisphere Navisphere Storage System Initialization.
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
On a Linux host, enter:
cd /opt/Navisphere/bin/naviinittoolcli
STEP 2. Read the license agreement.
ꢀ
ꢀ
On Windows, click I accept and Next.
On Linux, enter y to accept it.
The utility automatically scans the subnet for SSR212PP-Series storage systems. When
this storage system discovery operation is complete, the utility lists, by hardware serial
number, all uninitialized and initialized storage systems it discovered. The hardware serial
number (HW S/N XXX 000NNNNNNNN) is on a label on the rear of the chassis.
If the storage system you are installing was not discovered, verify the cable connections
between the storage system and the server running the utility.
STEP 3. Select a storage system to initialize.
ꢀ
On a Windows host, select the storage system from the Uninitialized Systems list and
and click Next.
ꢀ
On a Linux host, enter the item number of the storage system you want to initialize
and press ENTER.
Configuration," on page 1, follow the instructions on the screen to change the storage
system s name, if desired, and to set the following network parameters for the storage
system management ports:
Parameter
Descritpion
Storage Processor A - IP ADDRESS
Storage Processor B - IP ADDRESS
Subnet Mask
IP address for SP A management port.
IP address for SP B management port.
Subnet mask associated with the LAN to which the
storage system management port is connected.
Default Gateway
Default gateway address for the LAN to which the
storage system management port is connected.
STEP 5. Enter the name you want for the storage system; it cannot exceed 32 characters.
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Configuration," on page 1, follow the instructions on the screen to set the following
management user account settings for the storage system:
Account Setting
Description
User name
Username for the management port. A valid
username must start with a letter, can contain only
letters and numbers, cannot exceed 32 characters, and
is case—sensitive. For exampleb, lindmice3 is a valid
username and is different from BLINDMICE3.
Password
Password for the user connected to the management
port. A valid password can contain only letters and
numbers, cannot exceed 32 characters, and is case—
sensitive. For example, mousetrap2 is a valid
password and is a different password from
MOUSETRAP2.
Confirm Password
Previously entered password for password
verification.
STEP 7. Review and apply the settings.
ꢀ
On a Windows host,
i. Click Next to view the summary of the management user account settings for
storage system.
ii. In the message box about the storage system having been initialized, click OK.
iii. If the settings are correct, click Finish.
On a Linux host,
ꢀ
i. Apply the values by typing a.
ii. Exit the utility by typing e.
If you entered an SP IP address for the first time or changed an SP IP address, the utility
reboots the storage system and the SP Boot/Fault light on the back of each SP starts
blinking (Figure 51 on page 118 or Figure 52 on page 118). The reboot takes several
minutes to complete. When it is completed, the SP Boot/Fault light on each SP stops
blinking and remains off.
Changing the Management Network and Account Settings
STEP 2. Reset the storage system: At least one minute after the storage system shuts down, press
the power button, hold it down for at least four seconds, and then release it. When the
start-up is complete, the storage system is uninitialized. You must rerun the Navisphere
Initialization Utility to reset the management network parameters and the user account
settings.
STEP 3. Rerun the Navisphere Initialization Utility to set the parameters.
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Running Navisphere Storage
System Initialization Utility
on a iSCSI Configuration
19
STEP 1. Start the Navisphere Storage System Initialization Utility:
ꢀ
On a Windows host, click
Start Programs EMC Navisphere Navisphere Storage System Initialization.
ꢀ
ꢀ
ꢀ
ꢀ
ꢀ
On a Linux host, enter:
cd /opt/Navisphere/bin/naviinittoolcli
STEP 2. Read the license agreement.
ꢀ
ꢀ
On Windows, click I accept and Next.
On Linux, enter y to accept it.
The utility automatically scans the subnet for SSR212PP-Series storage systems. When
this storage system discovery operation is complete, the utility lists, by hardware serial
number, all uninitialized and initialized storage systems it discovered. The hardware serial
number (HW S/N XXX 000NNNNNNNN) is on a label on the rear of the chassis.
If the storage system you are installing was not discovered, verify the cable connections
between the storage system and the server running the utility.
STEP 3. Select a storage system to initialize.
ꢀ
On a Windows host, select the storage system from the Uninitialized Systems list and
and click Next.
ꢀ
On a Linux host, enter the item number of the storage system you want to initialize
and press ENTER.
page 15, follow the instructions on the screen to change the storage system s name, if
desired, and to set the following network parameters for the storage system management
ports:
Parameter
Descritpion
Storage Processor A - IP ADDRESS
Storage Processor B - IP ADDRESS
Subnet Mask
IP address for SP A management port.
IP address for SP B management port.
Subnet mask associated with the LAN to which the
storage system management port is connected.
Default Gateway
Default gateway address for the LAN to which the
storage system management port is connected.
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STEP 5. For each iSCSI data port on each SP that you will use, set the following port paramters,
where X is the storage-system SP (A or B) and Y is the SP s data port number (0 or 1):
Parameter
Description
SP X Port Y IP ADDRESS
SP X Port Y Subnet Mask
IP address for the iSCSI data port.
Subnet mask associated with the LAN to which the
iSCSI data port will connect.
SP X Port Y Direct Attach
SP X Port Y Gateway
Gateway address of 0.0.0.0 that you cannot change.
Set this parameter only if the iSCSI data port will
connect directly to the server and not through a LAN.
Default gateway address for the LAN to which the
iSCSI data port will connect.
STEP 6. Enter the name you want for the storage system; it cannot exceed 32 characters.
page 15, follow the instructions on the screen to set the following management user
account settings for the storage system:
Account Setting
Description
User name
Username for the management port. A valid
username must start with a letter, can contain only
letters and numbers, cannot exceed 32 characters, and
is case—sensitive. For exampleb, lindmice3 is a valid
username and is different from BLINDMICE3.
Password
Password for the user connected to the management
port. A valid password can contain only letters and
numbers, cannot exceed 32 characters, and is case—
sensitive. For example, mousetrap2 is a valid
password and is a different password from
MOUSETRAP2.
Confirm Password
Previously entered password for password
verification.
STEP 8. Review and apply the settings.
ꢀ
On a Windows host,
i. Click Next to view the summary of the management user account settings for
storage system.
ii. In the message box about the storage system having been initialized, click OK.
iii. If the settings are correct, click Finish.
On a Linux host,
ꢀ
i. Apply the values by typing a.
ii. Exit the utility by typing e.
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If you entered an SP IP address for the first time or changed an SP IP address, the utility
reboots the storage system and the SP Boot/Fault light on the back of each SP starts
blinking (Figure 51 on page 118 or Figure 52 on page 118). The reboot takes several
minutes to complete. When it is completed, the SP Boot/Fault light on each SP stops
blinking and remains off.
Changing the Management Network and Account Settings
STEP 2. Reset the storage system: At least one minute after the storage system shuts down, press
the power button, hold it down for at least four seconds, and then release it. When the
start-up is complete, the storage system is uninitialized. You must rerun the Navisphere
Initialization Utility to reset the management network parameters and the user account
settings.
STEP 3. Rerun the Navisphere Initialization Utility to set the parameters.
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Shutting the Storage
System Down
20
You can shut down the storage system with Navisphere Express or the power button.
Shutting the Storage System Down with Navisphere Express
STEP 2. In the Navisphere Express navigation pane under System, click Service.
STEP 3. In the System Shutdown page, click Shutdown.
Shutting the Storage System Down Using the Power Button
Power On/Off Button
Power LED
EMC3282
FIGURE 52. SSR212PPf Storage System Power Button and Light (LED)
Power On/Off Button Power LED
EMC3269
FIGURE 53. SSR212PP2f Storage System Power Button and Light (LED)
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Connecting a Fibre Channel
Storage System to the Server
21
Use optical cables to connect storage system fibre ports (labeled FE 0 and FE 1 on each
SP) to server HBA ports.
BeforeYou Start
To complete this procedure, you need an optical cable for each SP port that you will use on
the storage system. For cable specifications, refer to Technical Specifications on the
SSR212PP support website.
Handling Optical Cables
Optical cables are susceptible to damage, so take the following precautions when handling
them:
ꢀ
ꢀ
ꢀ
Keep the covers on all optical cables until you are ready to insert them.
Avoid tight bends. If you need to make a 90… bend, do it over 6 to 12 inches.
Do not use optical cables to support weight (including their own unsupported weight
if they are long).
ꢀ
ꢀ
Do not pull long runs of cable; instead, lay the cable in place or pull only a few feet at
a time.
Place the cables where no one can step on them or roll equipment over them.
Cabling the Storage System to the Server
For the highest availability with a multiple-HBA server
ꢀ
For configurations with a direct connection between the storage system and the server:
ꢁ
For an SSR212PPf (single-SP) storage system, connect FE 0 to one HBA and FE
1 to the other HBA
ꢁ
For an SSR212PP2f (dual-SP) storage system, if the server has twoHBAs,
connect one HBA to either FE port on SP A and the other HBA to either FE port
on SP B. If the server has four HBAs, connect one HBA to each FE port on each
SP.
ꢀ
For configurations utilizing Fibre Channel switches:
ꢁ
For single-SP systems, connect either FE port on SPA to one switch and either FE
port on SP B to another switch port.
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ꢁ
ꢁ
For dual-SP systems, connect either FE port on SP A to one switch and either FE
port on SP B to another switch port.
Customer-installable switches are easily configured, and some are preconfigured,
to use ports 0 and 4 only for SP connections and ports 1-3 and 5-15 only for HBA
connections. With switches set up in such "hard zones," you can connect FE 0 or
FE 1 to ports 0 and 4 only, and connect HBAs only to ports 1—3 and 5—15.
STEP 1. For each FE port that you want to connect to an HBA connector.
a. Remove the protective covers from the FE connector on the SP and from one end of
the optical cable, and plug the cable into the FE connector.
b. Remove the protective covers from the optical connector on the HBA and from the
STEP 2. For each FE port that you want to connect to the switch:
a. Remove the protective cover from the optical connector on the switch port that you
will use and from one end of the optical cable, and plug the cable into the switch port
b. Remove the protective covers from the FE connector on the SP and from the free end
FE 0
FE 1
FE 0
FE 1
EMC3281
FIGURE 54. SSR212PPf Front End (FE) and Optical Cable Connectors
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FE 0
FE 1
FE 0
FE 1
FE 0
FE 0
FE 1
FE 1
EMC3268
FIGURE 55. SSR212PP2f Front End (FE) and Optical Cable Connectors
STEP 3. For each switch port that you want to connect to the server:
a. Remove the protective covers from the HBA port connector on the server and from
one end of the optical cable, and plug the cable into the HBA connector.
b. Remove the protective covers from the free end of the optical cable and from the
lowest-numbered unused switch port (for hard—zoned switch ports 1-3, 5-15), and
For a hard-zoned switch, you must use these ports in order from 1-3,
To Server HBA
To SP
0
4
1
5
2
6
3
7
Switch
O F F
O
O F F
O
I
I
!
O N
O N
0
4
1
5
2
6
3
7
O F F
O N
O F F
O N
O
O
I
I
EMC3288
FIGURE 56. Sample Hard-zoned Switch Connections to an SSR212PPf Storage
System
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To Server HBA
To SP A
To SP B
0
4
1
5
2
6
3
7
Switch
O F F
O
O F F
O
I
I
!
O N
O N
0
4
1
5
2
6
3
7
O F F
O N
O F F
O N
O
O
I
I
EMC3289
FIGURE 57. Sample Hard-zoned Switch Connections to an SSR212PP2f Storage
System
STEP 4. If the switch is not already powered up, power it up.
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Connecting iSCSI Ports to
the Server
22
Connect iSCSI data ports on iSCSI storage systems directly to a server, or to an Ethernet
LAN and connect the server iSCSI data ports to either a 10/100 or 1-gigabit Ethernet
LAN, as described in this section.
BeforeYou Start
To complete this procedure, you will need:
ꢀ
An Administrative Worksheet completed with your network administrator in
Configuration Rules" section are crucial to a successful installation. For example,
each NIC in a server directly connected to the storage system requires a separate
subnet.
ꢀ
ꢀ
One LAN cable per storage system iSCSI port that you will connect to the server or
network. You can use CAT 5, CAT 5e, and CAT 6 LAN cables up to 100 meters to
connect the storage-system iSCSI ports (labeled iSCSI-1000 on each SP) to an
Ethernet port on a server.
One LAN cable per server iSCSI port that you connect to the network. You need CAT
5 LAN cables for iSCSI connections to 10/100 LANs or CAT 6 cables for iSCSI
connections to 1-gigabit LANs. These cables can be up to 100 meters.
STEP 1. For each iSCSI port on the storage system, connect one end of a LAN cable to the iSCSI 0
or iSCSI 1 port on the SP and the other end:
ꢀ
ꢀ
STEP 2. For each NIC or iSCSI HBA port on the server, connect one end of a network cable (CAT
6 for 1-gigabit Ethernet network, CAT 5 for 10/100 LAN) to the iSCSI port on the NIC or
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iSCSI Data
LAN Cables
SP A
HBA
HBA
or NIC or NIC
Server
iSCSI Data Port
EMC3310
FIGURE 58. Connecting SSR212PPi iSCSI Ports Directly to a Server
SP B
iSCSI Data Port
LAN Cables
iSCSI Data
HBA
HBA
HBA
HBA
or NIC or NIC
or NIC or NIC
SP A
Server
Server
iSCSI Data Port
FIGURE 59. Connecting SSR212PP2i iSCSI ports Directly to a Server
EMC3309
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Switch/Router
iSCSI Data
LAN Cables
SP A
HBA
HBA
or NIC or NIC
Server
iSCSI Data Port
EMC3326
FIGURE 60. Figure 36 Connecting the SSR212PPi and Server iSCSI Ports to a LAN
SP B
iSCSI Data Port
Switch/Router
LAN Cables
iSCSI Data
HBA
HBA
HBA
HBA
or NIC or NIC
or NIC or NIC
SP A
Server
Server
iSCSI Data Port
EMC3257
FIGURE 61. Figure 37 Connecting the SSR212PP2i and Server iSCSI Ports to a
LAN
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Configuring iSCSI Initiators for Linux or Windows
Configurations without iSNS
If you are using Windows with iSNS, this section is not for you. Instead, go to
Before an iSCSI initiator can send data to or receive data from the storage system, you
must configure the network parameters for the NIC orHBA iSCSI initiators to connect
with the storage-system SP iSCSI targets.
If the storage system already has NIC orHBA iSCSI initiators to connect with the storage-
system SP iSCSI targets.
Configuring Windows NIC Initiators to Connect to iSCSI Targets
Use the Navisphere Server Utility to configure the network parameters for each NIC
initiator that needs access to the storage system.
The Microsoft iSCSI Initiator gives the same name to all NICs in a server. This
name identifies the server, not the individual NICs, to a storage-system SP. This
means that if multiple NICs from the same server are connected to an SP only one
NIC is actually used. Other NICs are in standby mode. If you leave the Server
Network Adapter IP option set to Default, the server will use one of the other NICs
if the first NIC fails.
STEP 2. Select Configure iSCSI Connections on this server and click Next.
STEP 3. Select Configure iSCSI Connections and click Next.
STEP 4. In the iSCSI Targets and Connections window, select one of the following options to
discover the iSCSI target ports on the connected storage systems:
ꢀ
Discover iSCSI targets on this subnet scans the current subnet for all connected
SSR212PP-Series iSCSI storage system targets. The utility scans the subnet in the
range from 1 to 255. For example, if the current subnet is 10.12.77, the utility will
scan the IP addresses from 10.12.77.1 to 10.12.77.255.
If CHAP authentication is enabled on all target ports on a storage system,
you cannot discover using a subnet scan. You must discover the targets using
the target portal.
ꢀ
Discover iSCSI targets for this target portal discovers targets known to the specified
iSCSI SP data port.
STEP 5. Click Next. If you entered the IP address of the iSCSI target and you have CHAP
authentication enabled on that target, the CHAP login windows displays. Enter the CHAP
security information (username and secret) and if you have mutual CHAP configured on
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the storage system and the server, check Mutual CHAP if you want mutual CHAP enabled
on the initiator. Click Next.
The utility scans for iSCSI target ports and displays the IP address for each target it
discovers.
STEP 6. In the iSCSI Targets window, select the IP address of the Inactive target.
STEP 7. Under Login Options, do the following:
ꢀ
ꢀ
Select Also login to peer iSCSI target for High Availability (recommended) if the peer
iSCSI target is listed. This allows the utility to create a login connection to the peer
target so if the target you selected above becomes unavailable, data would continue to
the peer target.
Leave the Server Network Adapter IP set to Default. This allows the iSCSI initiator to
automatically failover to an available NIC in the event of a failure.
If you are an advanced user and you want to control which network or subnet is
used, you can select a Server Network adapter IP address from the drop-down list
but failover may not occur.
STEP 8. Click Logon to connect to the selected target. If CHAP authentication is enabled on the
target, a CHAP login pop-up displays. Enter the CHAP security information (username
and secret) and if you have mutual CHAP configured on the storage system and the server,
check Mutual CHAP if you want mutual CHAP enabled on the initiator. Click OK.
If you have previously logged in to this target, the CHAP login window may not
display.
STEP 10. Click Next. The server registration window opens and lists all connected storage systems.
STEP 11. In the server registration window, click Next to send the updated information to the
storage system. A success message displays.
STEP 12. Click Finish to close the wizard.
Configuring Linux NIC Initiators to Connect to iSCSI Targets
Each server connected to an iSCSI storage system must have a unique iSCSI
initiator name for its iSCSI NICs. To determine a server s iSCSI initiator name for
its NICs, use more/cat /etc/initiatorname.iscsi. Ifmultiple servers connected to the
storage system have the same iSCSI initiator name, contact your Linux provider for
help on making the names unique.
Use the iSCSI driver bundled with the Linux kernel to configure the network parameters
for each NIC that needs access to the storage system.
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CAUTION
The Linux iSCSI driver gives the same name to all NICs in a server. This name
identifies the server, not the individual NICs, to a storage-system SP. This means
that if multiple NICs from the same server are connected to an SP only one NIC
is actually used. Other NICs are in standby mode. The server will use one of the
others if the first NIC fails.
STEP 1. For an existing storage system with initiator CHAP already configured, stop the iSCSI
service:
/etc/init.d/iscsi stop
STEP 2. Define a discovery address and other parameters in the iSCSI driver configuration file:
a. Open the /etc/iscsi.conf file on your server with vi or another editor.
b. Under Discovery Address Category, after the line
#DiscoveryAddress=10.4.100.0,
add a new, uncommented DiscoveryAddress= SP_port_ip_address line for each 1-Gbit
iSCSI data port on each storage-system SP to which the NICs in that server have
access. For SP_port_ip_address, use the data port addresses from section B on the
Configuration," on page 15) that you completed. For example,
#DiscoveryAddress=10.4.100.0
DiscoveryAddress=172.31.1.100
DiscoveryAddress=172.31.2.100
Under Digest Settings , uncomment
HeaderDigest=never
DataDigest=never
Under PORTAL FAILOVER SETTINGS, uncomment
PortalFailover=no
Under MULTIPATH SETTINGS, uncomment
Multipath=yes
Under LUN SETTINGS, uncomment
LUNs=0-255
Under SESSION TIMEOUT SETTINGS, uncomment the
following parameter and change <number> to 10:
DiskCommandTimout=10
Under CONTINUOUS DISCOVERY SETTINGS, uncomment
Continuous=yes
Under iSCSI OPERATIONAL PARAMETER SETTINGS, uncomment
InitialR2T=yes
ImmediateData=yes
Any other changes to the non-CHAP part of the configuration file are not supported.
STEP 3. After you edit the configuration file, start the iSCSI service:
/etc/init.d/iscsi start
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To stop the iSCSI service, enter /etc/init.d/iscsi stop.
STEP 4. Set the run levels for the iSCSI service to start automatically on reboot and shutdown:
ꢀ
ꢀ
For Red Hat:
chkconfig - -level 345 iscsi on
For SuSE:
chkconfig -s iscsi 345
chkconfig -s iscsi on
Configuring HBA initiators to connect to iSCSI targets
Use the QLogic SANsurfer software to configure the network parameters for each QLogic
iSCSI HBA that needs to access the storage system.
CAUTION
You must not use the Microsoft iSCSI Software Initiator to control the QLogic
iSCSI HBAs.
STEP 1. Open QLogic SANsurfer as described in the QLogic documentation.
STEP 2. For each iSCSI connection to the storage system:
a. If multiple HBAs are listed in the first column under the server s name, select the
HBA to be configured.
b. Click the Target Settings tab.
c. On the Target Settings page, click the green plus (+) sign and enter the IP address for
the iSCSI port on your storage system, and then click OK.
This address is the IP address of the iSCSI data port from Section B on the completed
The state for the port is No Connection Active.
d. Select Auto Discover Targets.
e. Click Save and Yes to save the changes and discover all targets.
If the network is routed, the discovery finds all targets (ports) for the IP address you
entered earlier. The state of routed ports is Session Active; for unrouted ports, it is
Unknown.
f. In the Security Check window, enter your password and click OK. The default
password is config.
g. Select Config Parameters.
h. Select and enable all the targets that you want to connect to the server.
If you do not want the server to connect to a port or you want to remove unknown
ports, select the entry for the port and click the red minus (-) sign.
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i. Enable timestamps, set the execution throttle to 256, and uncheck immediate data.
j. Click Save and Yes.
k. In the Security Check window, enter your password and click OK.
The HBA performs an iSCSI discovery. Once finished, SANsurfer displays all of the
targets on the storage system.
Configuring the iSNS Client on the Storage System
iSNS (Internet Storage Naming Service) is supported only for Windows iSCSI
environments. iSNS provides the same function as the Simple Name Server (SNS) service
in a Fibre Channel fabric - automated discovery, management, and configuration of iSCSI
devices. It eliminates the need to manually configure each individual storage system with
its own list of initiators and targets.
iSNS includes an iSNS server component and iSNS client component. The iSNS server
must reside somewhere within the IP storage network, for example, on a host or in the
switch firmware. An iSNS client resides on both the iSCSI storage system and any iSCSI
servers connected to the storage system. When you start the storage system, the iSNS
client on the storage system gathers all the storage-system iSCSI port information and
stores it locally on the storage system. When you add a server to the storage system s iSNS
configuration, Navisphere Express establishes a connection from the storage system to the
iSNS server, and then registers the information stored on the storage system with the iSNS
server.
STEP 2. For each iSNS server to which you want the storage system to connect:
a. In the Manage iSCSI page, click iSNS to open the iSNS Servers page.
b. Click Add to open the Add iSNS Servers dialog box.
c. In the Add iSNS Servers dialog box, enter the IP address of the server you are adding.
d. Click Apply to send the SP iSCSI port information to the server. Before the IP address
is applied, it is tested to ensure it is valid.
e. In the iSNS servers dialog box, select the server to be the primary server and click Set
Primary.
Configuring iSCSI Initiators for a Configuration With iSNS
Before a NIC or iSCSI HBA iSCSI initiator in a server can send data to or receive data
from the storage system, you must configure the network parameters for the initiators for
iSNS.
Configuring NIC initiators on Windows servers for iSNS
Use the Navisphere Server Utility package to configure the network parameters for each
NIC iSCSI initiator.
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CAUTION
The Microsoft iSCSI Initiator gives the same name to all NICs in a server. This
name identifies the server, not the individual NICs, to a storage-system SP. This
means that if multiple NICs from the same server are connected to an SP only
one NIC is actually used. Other NICs are in standby mode. If you leave the
Server Network Adapter IP option set to Default, the server will use one of the
other NICs if the first NIC fails.
STEP 1. On the server, open the Navisphere Server Utility.
STEP 2. Select Configure iSCSI Connections on this server and click Next.
STEP 3. Select Configure iSCSI Connections and click Next.
STEP 4. In the iSCSI Targets and Connections window, select Discover iSCSI targets using this
iSNS Server to discover the specified IP address of the iSNS SP port.
STEP 5. Click Next.
The utility scans for iSCSI target ports and displays the IP address for each target it
discovers.
STEP 6. In the iSCSI Targets window, select the IP address of the Inactive target.
STEP 7. Under Login Options, do the following:
a. Select Also login to peer iSCSI target for High Availability (recommended) if the peer
iSCSI target is listed. This allows the utility to create a login connection to the peer
target so if the target you selected above becomes unavailable, data would continue to
the peer target.
b. Leave the Server Network Adapter IP set to Default. This allows the iSCSI initiator to
automatically failover to an available NIC in the event of a failure.
If you are an advanced user and you want to control which network or subnet
is used, you can select a Server Network adapter IP address from the drop-
down list but failover may not occur.
STEP 8. Click Logon to connect to the selected target.
STEP 10. Click Next. The server registration window opens and lists all connected storage systems.
STEP 11. In the server registration window, click Next to send the updated information to the
storage system. A success message displays.
STEP 12. Click Finish to close the wizard.
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Configuring HBA initiators on Windows servers for iSNS
Use the use QLogic SANsurfer package to configure the network parameters for each
HBA iSCSI initiator
STEP 1. Open QLogic SANsurfer as described in the QLogic documentation.
STEP 2. In the HBA tree, select the HBA and click the HBA Options tab.
The iSCSI name defaults to the iSCSI standard (iqn.xxxx).
STEP 3. Select Enable iSNS.
STEP 4. For each iSNS server, set the iSNS server address automatically or manually:
ꢀ
For an automatic setting: Select Obtain iSNS server address automatically (via
DCHP).
ꢀ
For a manual setting: Select Use the following iSNS server address and enter the IP
address of the server.
STEP 5. Click Save to save the new settings.
STEP 6. On the Target Settings tab, verify that the targets were discovered.
If any target was not discovered, verify that the IP address for each iSNS server is correct
and that iSNS is set up correctly on the server.
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Registering the Server with
the Storage System
23
If the storage system is connected to a Linux server, you must run the Navisphere Server
Utility on each server connected to the storage system to register the server s HBAs with
the storage system.
If you are utilizing a Windows server and if you did not disable the Registration Service
during the installation of the Server Utility (it is enabled by default), you do not need to
run the Server Utility to register the server s HBAs with the storage system as described
below. The registration happens automatically after the installation of the Server Utility.
Start Navisphere Express and verify your HBA registration as described below.
If you disabled the Registration Service during the installation of the Server Utility (it is
enabled by default), you must run the Server Utility as described below, and then start
Navisphere Express and verify your HBA registration.
Running the Navisphere Server Utility on a Windows Server
You need to run the Server Utility only if you disabled the Registration Service during the
installation of the utility (it is enabled by default).
STEP 1. Run the Navisphere Server Utility by clicking
ꢀ
ꢀ
ꢀ
ꢀ
Start Programs EMC Navisphere Navisphere Server Utility.
If the Server Utility does not discover the storage system, the storage system
may still be rebooting. When the reboot is complete, the SP Boot/Fault light
on the back of each SP is off and not blinking. If the reboot is complete, try
running the utility again.
STEP 2. Select your language, if prompted for it.
STEP 3. In the Navisphere Server Utility dialog box, select Register this server to all connected
storage systems.
The utility automatically scans for all connected SSR212PP-Series storage systems and
lists them under Connected Storage Systems. Locate the WWN of the HBA you just
installed. The HBA should appear once for every SP port it is connected to.
If the utility is already running, it does not automatically perform a scan, and
you must click Rescan.
STEP 4. Click Next to register the server with the storage system.
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To each storage system, the utility sends the server s name and IP address. Once the server
has storage on the storage system, the utility also sends the device name and volume or
file system information for each virtual disk in the storage system that the server sees.
STEP 5. Click Finish to exit the utility.
Running the Navisphere Server Utility on a Linux Server
STEP 1. On the server, run the utility by entering
/opt/Navisphere/bin/naviserverutilcli
If the Server Utility does not discover the storage system, the storage system may
still be rebooting. When the reboot is complete, the SP Boot/Fault light on the back
of each SP is off and not blinking. If the reboot is complete, try running the utility
again.
STEP 2. In the Server Utility, enter 1 to select Update Server Information. The utility automatically
scans for connected SSR212PP-Series storage systems, and displays a list of the ones it
finds.
STEP 3. In the Server Utility, enter u to register the server with each storage system the utility
found.
The utility sends the server s name and IP address to each storage system. Once the server
has storage on the storage system, the utility also sends the Linux or device name and
volume or file system information for each virtual disk in the storage system that the
server sees.
STEP 4. Enter c (cancel) to stop the utility.
Verifying HBA Registration
STEP 2. In the Navisphere Express navigation pane, under Manage, click Connections to display
the Manage Connections page.
STEP 3. Verify that the SP/Port status is Active for each HBA, NIC or iSCSI HBA connected to the
storage system.
ꢀ
ꢀ
If the status is Active (unregistered), register the HBA, NIC or iSCSI HBA with the
storage system by running the Navisphere Server Utility.
If the status is Inactive, either the physical connection between the HBA, NIC or
iSCSI HBA and the storage system is faulty or the storage system is not powered up.
Go the "Troubleshoot" section on theSSR212PP support website or the SSR212PP-
Series Documentation CD.
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Configuring a New
24
Storage System
Read this section if you are configuring a new storage system. A new storage system is
one that was not already connected to a server when you started the installation procedure.
BeforeYou Start
STEP 2. Create a hot spare.
A hot spare is a single global spare disk that serves as a temporary replacement for
any failed disk in the storage system. The storage system automatically reconstructs
data from the failed disk onto the hot spare, so the data is always available.
In the Navisphere Express navigation pane, under Manage, click Hot Spare. For details on
creating a hot spare, use the Navisphere Express Help Center.
STEP 3. Create one or more disk pools on which to create virtual disks.
A disk pool is a set of disks, all with the same capacity and redundancy, on which
you create one or more virtual disks. A RAID 5 disk pool must include at least three
disks and a RAID 1/0 must include at least two disks. The storage system supports
a maximum of six disk pools.
In the Navisphere Express navigation pane, under Manage, click Disk Pools. For details
on creating a disk pool, use the Navisphere Express Help Center.
For an SSR212PP2f (dual-SP) storage system, you should create at least two disk pools
since the software assigns each disk pool you create to an SP as follows: disk pool 1 to SP
A, disk pool 2 to SP B, disk pool 3 to SP A, and disk pool 4 to SP B. All the virtual disks
you create on a disk pool are automatically assigned to the same SP as the disk pool, so if
you create only one disk pool on the storage system, all virtual disks on the storage system
are assigned to SP A and all data received or sent goes through SP A only.
The disk modules marked 0 through 3 contain storage system software or reserved
space according to their slot assignment. Do not move any disk marked 0 through 3
from its assigned slot. Remove it only to replace the disk module. Part of the space
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on these disks is reserved or preloaded with system data, and as a result, is not
available for your data. If you combine operating system disks in a disk pool with
other disks, each of the other disks loses space for your data equal to the system
data space on an operating system disk.
STEP 4. Create one or more virtual disks on each disk pool.
A virtual disk is a grouping of disk partitions into one span of disk storage space.
Each virtual disk you create is distributed equally across the disks in the disk pool.
A virtual disk looks like an individual disk to the server s operating system. Each
disk pool supports 128 virtual disks.
In the Navisphere Express navigation pane, under Manage, click Virtual Disks. For details
on creating a virtual disk, use the Navisphere Express Help Center.
If you want to connect additional servers to the storage system, you can create virtual
disks for them now. You have to wait until the servers are connected and registered before
you can assign these virtual disks to them.
STEP 5. Assign one or more virtual disks to the server.
To send data to or receive data from the virtual disks, you must assign the virtual
disks to a server.
In the Navisphere Express navigation pane, under Manage, click Virtual Disks. For details
on assigning a virtual disk to a server, use the Navisphere Express Help Center.
STEP 6. Verify that the virtual disks were assigned to the server by viewing the Manage Servers
page.
In the Navisphere Express navigation pane, under Manage, click Servers.
You should see the virtual disks you assigned to the server listed in the Virtual Disks
column of the server s row. If you do not see virtual disks, go the "Troubleshoot" section
on the sSSR212PP support website or the SSR212PP-Series Documentation CD.
STEP 7. Use the Event Notification page to configure the storage system to send an email message
when it encounters a problem.
In the Navisphere Express navigation pane, under System, click Settings, and then click
Event Notification. For details on configuring the storage system to send email messages,
use the Navisphere Express Help Center.
STEP 8. On a Linux server,
a. Make the virtual disks visible:
ꢁ
For HBAs:
rmmod driver_module
modprobe driver_module (or insmod driver_module)
where driver_module is the driver module name.
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ꢁ
For NICs:
/etc/init.d/PowerPath stop
/etc /init.d/iscsi stop
/etc /init.d/iscsi start
/etc/ini.d/PowerPath start cat /proc/scsi/scsi
b. Verify that all virtual disks have entries in the /proc/scsi/scsi file.
If any disk entries are missing from the file:
i. Use Navisphere Express to verify that each HBA is registered with the storage
ii. Use Navisphere Express to verify that the virtual disks are connected to the server.
In the Navisphere Express navigation pane, under Manage, click Virtual Disk to
display the Manage Virtual Disks page.
iii. Verify that each virtual disk is assigned to the appropriate server and the SP/Port
status is Active for each HBA connected to the storage system.
If a disk is not assigned to the appropriate server, double-click the disk, select
Assign to Server and assign it to the appropriate server.
If any virtual disk is still not connected to the server, go the "Troubleshoot"
section on the SSR212PP support website or the SSR212PP-Series
Documentation CD.
STEP 9. Verify that each virtual disk is fully initialized:
a. Start Navisphere Express on the storage system with the virtual disks. See
b. In the Navisphere Express navigation pane under Manage, click Virtual Disk.
c. In the Manage Virtual Disks screen, if the status of any virtual disk is Initializing, wait
until the initialization is complete before continuing to the next section.
STEP 10. If the virtual disk is connected to a server running Windows Server 2003, reboot the
server.
STEP 11. Verify that PowerPath sees all paths to the virtual disks.
a. On the server, configure PowerPath:
powermt config
b. On Windows 2003 Server hosts, start PowerPath iSCSI:
ꢀ
ꢀ
i. Select Start Settings Control Panel.
ii. On the Control Panel, do one of the following:
ꢀ
Select Administrative Tools Computer Management, or
^
^
Click the My Computer icon on your Desktop and select Manage from the
menu.
The PowerPath iSCSI application resides under the Storage component of the
Computer Management utility.
iii. On the Computer Management panel, select PowerPath iSCSI.
iv. In the left pane, expand Disks.
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v. Click on each virtual disk to display a list of :paths to the disk, and verify that all
paths are listed. (Missing or failed paths do not, appear in the list of paths.)
If a path is missing, refer to the "Troubleshoot" section on the SSR212PP
support website or the SSR212PP2f-Series Documentation CD.
c. For other Windows servers,
i. On the Windows taskbar, either double-click the PowerPath Administrator icon or
right-click the icon and select PowerPath Administrator.
ii. In the results pane, verify that the path metric for each virtual disk is n/n where n
is the total number of paths to the disk.
d. For Linux servers, verify that PowerPath sees all the paths to the virtual disks with
the PowerPath command:
i. Configure PowerPath:
powermt config
ii. Verify that PowerPath sees all the paths to the virtual disks with the PowerPath
command:
powermt display dev=all class=clariion
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Configuring an Existing
25
Storage System
Read this section if you are configuring an existing storage system. An existing storage
system is one that was already connected to a server when you started the installation
procedure.
BeforeYou Start
You will need the completed storage system disk information worksheet from
STEP 2. If you need additional disk pools for virtual disks for the server, create one or more disk
pools. In the Navisphere Express navigation pane, under Manage, click Disk Pools. For
details on creating a disk pool, use the Navisphere Express Help Center.
A disk pool is a set of disks, all with the same capacity and redundancy, on which
you create one or more virtual disks. A RAID 5 disk pool must include at least three
disks and a RAID 1/0 must include at least two disks. The storage system supports
a maximum of six disk pools.
The disk modules marked 0 through 3 contain storage system software or reserved
space according to their slot assignment. Do not move any disk marked 0 through 3
from its assigned slot. Remove it only to replace the disk module. Part of the space
on these disks is reserved or preloaded with system data, and as a result, is not
available for your data. If you combine operating system disks in a disk pool with
other disks, each of the other disks loses space for your data equal to the system
data space on an operating system disk.
STEP 3. If you need additional virtual disks for the server, create one or more virtual disks on the
disk pools. In the Navisphere Express navigation pane, under Manage, click Virtual Disks.
For details on creating a virtual disk, use the Navisphere Express Help Center.
Each disk pool supports 128 virtual disks.
STEP 4. Assign one or more virtual disks to the server. Iin the Navisphere Express navigation
pane, under Manage, click Virtual Disks. For details on assigning a virtual disk to a server,
use the Navisphere Express Help Center.
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To send data to or receive data from the virtual disks, you must assign the virtual
disks to a server.
STEP 5. Verify that the virtual disks were assigned to the server by looking at the Manage Servers
page. In the Navisphere Express navigation pane, under Manage, click Servers.
You should see the virtual disks you assigned to the server listed in the Virtual Disks
column of the server s row.
If you do not see virtual disks, go the "Troubleshoot" section on the SSR212PP support
website or the SSR212PP-Series Documentation CD.
STEP 6. On a Linux server, make the virtual disks visible:
ꢀ
For NICs:
/etc/init.d/PowerPath stop
/etc /init.d/iscsi stop
/etc /init.d/iscsi start
/etc/ini.d/PowerPath start cat /proc/scsi/scsi
ꢀ
For HBAs
rmmod driver_module
modprobe driver_module (or insmod driver_module)
where driver_module is the driver module name
STEP 7. On a Linux server, verify that all virtual disks have entries in the /proc/scsi/scsi directory
and in the file for theHBAs in the /proc/scsi directory. If any disk entries are missing from
the file:
a. Use Navisphere Express to verify that each HBA is registered with the storage system:
b. Use Navisphere Express to verify that the virtual disks are connected to the server:
i. In the Navisphere Express navigation pane, under Manage, click Virtual Disk to
display the Manage Virtual Disks page.
ii. Verify that each virtual disk is assigned to the appropriate server and the SP/Port
status is Active for each HBA connected to the storage system.
If a disk is not assigned to the appropriate server, double-click the disk, select
Assign to Server and assign it to the appropriate server.
If any virtual disk is still not connected to the server, go the "Troubleshoot"
section on the SSR212PP support website or the SSR212PP-Series
Documentation CD.
STEP 8. Verify that each virtual disk is fully initialized
a. Start Navisphere Express on the storage system with the virtual disks.
b. In the Navisphere Express navigation pane under Manage, click Virtual Disk.
c. In the Manage Virtual Disks screen, if the status of any virtual disk is Initializing, wait
until the initialization is complete before continuing to the next section.
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d. If the virtual disk is connected to a server running Windows Server 2003, reboot the
server.
STEP 9. Verify that PowerPath sees all paths to the virtual disks.
a. Configure PowerPath:
powermt config
b. On Windows 2003 Server hosts:
ꢀ
ꢀ
i. Select Start Settings Control Panel.
ii. On the Control Panel, do one of the following:
ꢀ
¥SelectAdministrative Tools Computer Management, or
¥Click theMy Computer icon on your Desktop and select Manage from the menu.
The PowerPath iSCSI application resides under the Storage component of the
Computer Management utility.
iii. On the Computer Management panel, select PowerPath iSCSI.
iv. In the left pane, expand Disks.
v. Click on each virtual disk to display a list of :paths to the disk, and verify that all
paths are listed. (Missing or failed paths do not, appear in the list of paths.)
If a path is missing, refer to the "Troubleshoot" section on the SSR212PP
support website or the SSR212PP2f-Series Documentation CD.
c. On other Windows servers:
i. On the Windows taskbar, either double-click the PowerPath Administrator icon or
right-click the icon and select PowerPath Administrator.
ii. In the results pane, verify that the path metric for each virtual disk is n/n where n
is the total number of paths to the disk.
d. On Linux servers: enter the following command:
i. Configure PowerPath:
powermt config
ii. Verify that PowerPath sees all the paths to the virtual disks with the PowerPath
command:
powermt display dev=all class=clariion
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Setting up CHAP Security for
iSCSI Storage Systems
26
Challenge Handshake Authentication Protocol (CHAP) is a method of authenticating
iSCSI users. The iSCSI storage system can use CHAP to authenticate initiators and
initiators can likewise authenticate targets such as the storage system.
CAUTION
If you do not configure CHAP security for the storage system, any host
connected to the same IP network as the storage-system iSCSI ports can read
from and write to the storage system. If the storage system is on a private
network, you can choose not to use CHAP security. If the storage system is on a
public network, we strongly recommend that you use CHAP security.
If you want to use CHAP security, you should set up and enable it on the storage
system before preparing virtual disks to receive data. If you prepare disks to receive
data before you set up and enable CHAP security, you lose visibility to the disks.
CHAP has two variants:
ꢀ
Initiator CHAP sets up accounts that iSCSI initiators use to connect to targets. The
target authenticates the initiator. Initiator CHAP is the primary CHAP authentication
method.
Navisphere Express provides Basic and Advanced initiator CHAP options. Basic
CHAP specifies one secret (password) for all initiators that log in to a given target.
The Advanced option allows you to specify a different secret for each initiator, and
also allows you to set up Mutual CHAP.
ꢀ
Mutual CHAP is applied in addition to advanced initiator CHAP, mutual CHAP sets
up an account that a target uses to connect to an initiator. The initiator authenticates
the target.
Setting up and enabling initiator CHAP is necessary for iSCSI security to work. Mutual
CHAP is an optional additional level of security. Only one mutual CHAP credential is
supported for each storage system.
The following steps are necessary to set up initiator CHAP:
ꢀ
ꢀ
On a server that uses NICs or iSCSI HBAs, log off and remove target portals.
On the storage system, configure and enable initiator CHAP (basic or advanced) by
entering the initiator user data for all initiators that are allowed to access the storage
system.
ꢀ
If you are setting up the optional mutual CHAP, you must enter the mutual CHAP user
data on each server; that is, the target user account data that the storage system sends
to initiators. The initiators compare this data with their stored user data when they
authenticate the storage system.
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To set up mutual CHAP you must first configure advanced initiator CHAP.
ꢀ
ꢀ
On each server that will use the storage system, configure initiator CHAP by entering
the user data for each initiator that will connect to the target. The initiator sends this
data to the target and the target uses this data to authenticate the initiator.
On each server, ensure that the target is logged in to the initiators.ensure that the
session is active, and that HBAs are logged in to the target.
After you decide on the security level you want to configure in your SSR212PP2f-Series
environment, follow the instructions in either the section on setting up basic or advanced
CHAP the NICs or iSCSI HBAs.
BeforeYou Start
Storage System Configuration," on page 15, and that you have the worksheets available.
If your system utilizes QLogic iSCSI HBAs, refer to the QLogic documentation supplied
with the HBA for more information. Note that QLogic uses the following terminology:
EMC terminology
CHAP Username
CHAP Secret
QLogic terminology
Initiator Name
Initiator Secret
CHAP
Initiator (Basic) CHAP
Removing iSCSI Targets
STEP 1. On a Windows server without iSNS: log off and remove targets:
When you remove an iSCSI target, the specified target and all other targets on the
storage system will be removed. If you want to remove a specific target port and
not all targets on the storage system, you must use the Microsoft Software Initiator.
a. On the server that includes your iSCSI initiators, open the Navisphere Server Utility.
b. Log off and remove any targets with the storage system you are setting up for CHAP:
i. Select Configure iSCSI Connections on this server and then Configure iSCSI
Connections.
ii. In the iSCSI Targets and Connections window, under View iSCSI Connections,
select View currently available targets.
iii. Click Next. The utility scans for target ports and displays the IP address for each
target it discovers.
iv. In the iSCSI Targets window, select the IP address of the Connected target and
click Logoff. The target status changes to Inactive.
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v. Select the IP address of the Inactive target and click Remove. All targets for the
storage system are removed.
vi. Click Cancel to close the wizard.
STEP 2. On a Windows server with iSNS, log off and remove targets:
a. On the server that includes your iSCSI initiators, open the Microsoft iSCSI Software
Initiator.
b. Log off any connected targets you are setting up for CHAP:
i. On the Targets tab, click Details and log off all targets.
ii. On the Persistent Targets tab, remove any persistent targets.
Setting Up Basic Initiator CHAP on the Storage System
With basic CHAP security, the storage systemuses the same username and secret to
authenticate all host initiators. CHAP credentials are configured for the entire storage
system, and are required for CHAP security.
STEP 1. On your storage system management station, start Navisphere Express on the storage
STEP 2. In the Navisphere Express navigation pane, under Manage, click iSCSI to open the
Manage iSCSI screen.
STEP 3. To set basic security, click Basic.
STEP 4. In the iSCSI Security - Basic screen, click Initiator CHAP Configuration.
STEP 5. In the Initiator CHAP Configuration - Basic screen, click Add. The Add Initiator CHAP
Credentials - Basic screen opens.
STEP 6. In Step 1 on the screen, enter a CHAP username. This name must match the username for
the server s iSCSI initiators.
STEP 7. In Step 2 on the screen, enter and confirm a CHAP secret.
You will enter this secret on the server later.
You can specify the secret in ASCII or hexadecimal characters. ASCII secrets must consist
of at least 12 and no more than 16 characters. Hexadecimal secrets must consist of at least
12 and no more than 16 pairs of data (24 to 32 characters). If you specify the CHAP secret
using hexadecimal characters, you must select CHAP Secret Specified In Hex.
STEP 8. In Step 3 on the screen, click Apply to add the CHAP credential and return to the Add
Initiator CHAP Credentials - Basic screen.
STEP 9. Click View all initiator CHAP credentials and confirm that the new CHAP entry exists.
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STEP 10. Enable basic CHAP on the storage system
a. Open Navisphere Express on the storage system you are configuring. See
b. In the Navisphere Express navigation pane, under Manage, click iSCSI to open the
Manage iSCSI screen.
c. Under Security, click Basic.
d. In the iSCSI Security - Basic screen, click Enable.
Setting up Advanced Initiator CHAP on the Storage System
Advanced CHAP security lets you set the same username and secret for all host initiators
(basic CHAP), or set different usernames and secrets for each host initiator. It also allows
you to restrict authentication to specific host initiators (IQNs), and to set up optional
mutual CHAP.
STEP 1. On the Windows server that includes your iSCSI initiators, log off and remove iSCSI
STEP 2. On your storage system management station, start Navisphere Express on the storage
STEP 3. In the Navisphere Express navigation pane, under Manage, click iSCSI to open the
Manage iSCSI screen.
STEP 4. To set advanced security, click Advanced.
STEP 5. In the iSCSI Security - Advanced screen, click Initiator CHAP Configuration.
STEP 6. In the Initiator CHAP Configuration - Advanced screen, click Add.
The Add Initiator CHAP Credentials - Advanced screen opens.
STEP 7. In Step 1 on the screen, select the initiator or initiators that will use the new CHAP
credentials.
You can allow any initiator to log in with the credentials you specify, (the equivalent of
basic CHAP), or you can restrict access to a specific initiator. To restrict access, you must
create a CHAP user for each server initiator.
STEP 8. In Step 2 on the screen, enter a CHAP username. This name must match whatever is
entered as a username for the server.
You can manually enter a username, or, if logins are restricted to specific initiators
STEP 9. In Step 3 on the screen, enter and confirm a CHAP secret.
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You will also enter this secret for the server initiators.
You can specify the secret in ASCII or hexadecimal characters. ASCII secrets must consist
of at least 12 and no more than 16 characters. Hexadecimal secrets must consist of at least
12 and no more than 16 pairs of data (24 to 32 characters). If you specify the CHAP secret
using hexadecimal characters, you must select CHAP Secret Specified In Hex.
STEP 10. In Step 4 on the screen, either click Apply to set the advanced initiator CHAP credentials
or click Cancel to return to the Initiator CHAP Configuration - Advanced screen.
STEP 11. Click View all initiator CHAP credentials and confirm that the new CHAP entry exists.
Setting up Mutual Initiator CHAP on the Storage System
For optional mutual initiator CHAP, you enter the mutual CHAP username and secret that
you entered on each target on each initiator as well. If mutual CHAP is enabled, the target
sends its username and secret when it responds to the initiator. When the target sends this
data, the initiator compares it with an account database and authenticates the target.
STEP 1. On the Windows server that includes your iSCSI initiators, log off and remove iSCSI
STEP 2. On your storage system management station, start Navisphere Express on the storage
STEP 3. In the Navisphere Express navigation pane, under Manage, click iSCSI.
The Manage iSCSI screen opens.
STEP 4. Click Advanced.
STEP 5. In the iSCSI Security - Advanced screen, click Mutual CHAP Configuration.
STEP 6. In the Mutual CHAP Configuration - Advanced screen, click Add.
The Add Mutual CHAP Credentials - Advanced screen opens.
STEP 7. In Step 1 on the screen, enter a CHAP username for the storage system.
STEP 8. In Step 2 on the screen, enter a CHAP secret that is not the same as any storage-system
initiator secret you specified, and confirm the secret.
You can specify the secret in ASCII or hexadecimal characters. ASCII secrets must consist
of at least 12 and no more than 16 characters. Hexadecimal secrets must consist of at least
12 and no more than 16 pairs of data (24 to 32 characters). If you specify the CHAP secret
using hexadecimal characters, you must select CHAP Secret Specified in Hex.
STEP 9. In Step 3 on the screen, click Apply to add the CHAP credential and return to the Mutual
CHAP Configuration - Advanced screen.
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STEP 10. Click View mutual CHAP credentials and confirm that the new CHAP entry exists.
STEP 11. Enable advanced CHAP on the storage system:
a. In the Navisphere Express navigation pane, under Manage, click iSCSI to open the
Manage iSCSI screen.
b. Under Security, click Advanced.
c. In the iSCSI Security - Advanced screen, click Enable.
Configuring Basic Chap on a Windows Server with NICs
CAUTION
CHAP security must be enabled on the storage systembefore using the Configure
iSCSI connections on the Server Utility.
After entering CHAP data on the target, you must enter the same data on each NIC
initiator you log on to. On each initiator, you enter the initiator CHAP user account data
(username and secret) that the initiator sends to the target for authentication. For basic
initiator CHAP, this data is the initiator username and secret that you entered on the target.
When the initiator sends this data, the target compares it with an account database and
authenticates the initiator.
STEP 3. Select Configure iSCSI Connections on this server and click Next.
STEP 4. Select Configure iSCSI Connections and click Next.
STEP 5. In the iSCSI Targets and Connections window, select one of the following options to
discover the iSCSI target ports on the connected storage systems:
ꢀ
Discover iSCSI targets on this subnet scans the current subnet for all connected
SSR212PP2f-Series iSCSI storage system targets. The utility scans the subnet in the
range from 1 to 255. For example, if the current subnet is 10.12.77, the utility will
scan the IP addresses from 10.12.77.1 to 10.12.77.255.
If CHAP authentication is enabled on all target ports on a storage system, you
cannot discover using a subnet scan. You must discover the targets using the target
portal.
ꢀ
Discover iSCSI targets for this target portal discovers targets known to the specified
iSCSI SP data port.
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ꢀ
Discover iSCSI targets using this iSNS Server discovers the specified IP address of
the iSNS server.
STEP 6. Click Next. If you entered the IP address of the iSCSI target and you have CHAP
authentication enabled on that target, the CHAP login windows displays. Enter the CHAP
security information (username and secret) and if you have mutual CHAP configured on
the storage system and the server, check Mutual CHAP if you want mutual CHAP enabled
on the initiator. Click Next.
STEP 7. The utility scans for iSCSI target ports and displays the IP address for each target it
discovers.
STEP 8. In the iSCSI Targets window, select the IP address of the Inactive target.
STEP 9. Under Login Options, do the following:
ꢀ
ꢀ
Select Also login to peer iSCSI target for High Availability (recommended) if the peer
iSCSI target is listed. This allows the utility to create a login connection to the peer
target so if the target you selected above becomes unavailable, data would continue to
the peer target.
Leave the Server Network Adapter IP set to Default. This allows the iSCSI initiator to
automatically failover to an available NIC in the event of a failure.
If you are an advanced user and you want to control which network or subnet is
used, you can select a Server Network adapter IP address from the drop-down list
but failover may not occur.
STEP 10. Click Logon to connect to the selected target. If CHAP authentication is enabled on the
target, a CHAP login pop-up displays. Enter the CHAP security information (username
and secret) and if you have mutual CHAP configured on the storage system and the server,
check Mutual CHAP if you want mutual CHAP enabled on the initiator. Click OK.
STEP 12. Click Next. The server registration window opens and lists all connected storage systems.
STEP 13. In the server registration window, click Next to send the updated information to the
storage system. A success message displays.
STEP 14. Click Finish to close the wizard. You have set and enabled basic security on the server and
storage system.
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Configuring Basic Chap on a Linux Server with NICs
CAUTION
CHAP security must be enabled on the storage systembefore using the Configure
iSCSI connections on the Server Utility.
After entering CHAP data on the target, you must enter the same data on each NIC
initiator. On each initiator, you enter the initiator CHAP user account data (username and
secret) that the initiator sends to the target for authentication. For basic initiator CHAP,
this data is the initiator username and secret that you entered on the target. When the
initiator sends this data, the target compares it with an account database and authenticates
the initiator.
STEP 1. Start the Linux iSCSI driver by typing /etc/init.d/iscsi start.
STEP 2. Based on the security model you want to build for security, follow the examples in the
/etc/iscsi.conf configuration file to define usernames and passwords.
STEP 3. Find the driver parameter models you want to use, and configure them as shown in the
examples in configuration file.
For more configuration information and examples, see the README file in the
source directory.
The following excerpt from the iscsi.conf configuration file shows two sections of the file:
the Authentication Settings section and the Target Name Specific Settings section. The
Authentication Settings section shows an authenticated configuration using CHAP. The
Target Name Specific Settings section shows a non-authenticated configuration.
Your version of iscsi.conf may be different from the file shown below. This
example shows some configuration guidelines.
# iSCSI configuration file - see iscsi.conf(5)
# Authentication Settings
# ----------------------- #
# You may configure a default Username and Password to
use for CHAP
# authentication by specifying the Global username and
password parameters
# in the format as mentioned below. These entries will
need to precede any
# "DiscoveryAddress" entries if authentication needs to
be enabled for all the
# iSCSI targets.
#
# Example:
#
# Username=john
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# Password=welcome
# or
# OutgoingUsername=john
# OutgoingPassword=welcome
#
# The "OutgoingUsername" will specify the username to
be sent to the target
# for login authentication. The "OutgoingPassword" is
the CHAP secret password
# to be used when sending challenge responses to the
target.
#
# You may configure CHAP authentication settings that
will apply to every
# target discovered at a particular address by adding
"OutgoingUsername=u"
# and "OutgoingPassword=p" entries indented below the
"DiscoveryAddress"
# entry they apply to.
#
# Example:
#DiscoveryAddres=127.0.0.1 (Storage System1 SPA)
# Username=john
# Password=welcome
#DiscoveryAddres=127.0.0.2 (Storage System1 SPB)
# Username=betty
# Password=bienvenue
#
# or
#DiscoveryAddress=127.0.0.1 (Storage System1 SPA)
#DiscoveryAddress=127.0.0.2 (Storage System1 SPB)
#DiscoveryAddress=127.0.00.1 (Storage System2 SPA)
#DiscoveryAddress=127.0.00.2 (Storage System2 SPB)
# Username=john
# Password=welcome
#DiscoveryAddres=127.0.0.3 (Storage System3 SPA)
#DiscoveryAddres=127.0.00.3 (Storage System3 SPB)
# Username=betty
# Password=bienvenue
#
# You can configure 2 WAY authentication to enable the
authentication of the
# initiator by the target and vice-versa. The "Outgoing
Username" and "Outgoing
# Password" fields specify the initiator authentication
and "IncomingUsername"
# and "IncomingPassword" can be used for target
authentication.
#
# The "IncomingUsername" will specify
must be received from
# target if login authentication occurs.
"IncomingPassword" is the CHAP
# secret to be used when verifying challenge
from the target.
# The "OutgoingPassword" and "IncomingPassword"
should be unique.
#
# Example:
#
# OutgoingUsername=alice
# OutgoingPassword=foo
#
# IncomingUsername=alice3
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# IncomingPassword=foo
# TargetName Specific Settings
# ----------------------------
# Target-specific settings should be entered
respective "TargetName"
# entries. If Multipath is enabled, then
target-specific settings will be
# be applicable for all iSCSI sessions
#
# If settings under "Subnet" entry are
settings under
# "TargetName" entry, the settings under
be considered.
#
#TargetName=iqn.1987-05.com.cisco:00.0d1d898e8d66.
#
# The TargetName Settings can have the
specific to a target.
#
# 1) CRC Settings # 2) iSCSI Operational
settings
# 3) Connection Timeout Settings
# 4) Session Timeout Settings
# 5) Error Handling Timeout Settings
# 6) TCP Settings
# 7) Portal Failover Settings
# 8) Multipath Settings
# 9) LUN settings
# 10) PreferredSubnet and PreferredPortal
# NOTES:
# ------
# If any of the configuration parameters
mentioned under Configuration
# type DiscoveryAddress, TargetName or
values will be
# considered if they are specified, else
settings will apply for these
# configuration parameters.
#
# All entries specified below any of the
types must be indented
# by a whitespace character or a tab to
local to a category. If
# they are specified in the 1st column
default considered as global
#
# Example: # #Subnet=127.0.0.1 # ActiveTimeout=10
# PingTimeout=10
# LoginTimeout=30
#
# In the above case LoginTimeout is considered a global
value and will have
# scope until another LoginTimeout entry is specified.
# If there are conflicting entries for the same target
through the Subnet and
# TargetName or DiscoveryAddress entries, the Subnet
entries in the file will
# take precedence.
#
# Example:
#
#Subnet=127.0.0.1 # ActiveTimeout=10
#
#TargetName=iqn.1987-05.com.cisco:00.0d1d898e8d66.t0
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# ActiveTimeout=15
#
# In the above scenario, the Subnet specific setting
will take effect.
# If there is any conflict between DiscoveryAddress
and Global entries,
# DiscoveryAddress settings takes precedence.
#
#Username=bob
#Password=bob123
# DiscoveryAddress=127.0.0.1
# Username=
# Password= DiscoveryAddress=127.0.0.2
# Username=
# Password= DiscoveryAddress=127.0.0.3
# Username=
# Password= DiscoveryAddress=127.0.0.4
# Username=
# Password=
# DiscoveryAddress=127.0.0.5
# Username=
# Password= DiscoveryAddress=127.0.0.6
# Username=
# Password=
# In the above case, the DiscoveryAddress settings
will be considered.
# Targets without any matching Subnet, TargetName or
DiscoveryAddress entries
# will take the global values if any in the config file,
else the default
# values will take effect.
#
# Example:
#
#HeaderDigest=prefer-on
#DataDigest=prefer-on
#InitialR2T=No #ActiveTimeout=10
#
# If there are any duplicate entries for a configuration
parameter in the conf
# file the latest entry in the file will take effect.
#
# Example:
#
# IncomingUsername=alice
# IncomingPassword=alice123
#multipath=no
#LUNs=0-255
# IncomingUsername=bob
# IncomingPassword=bob123
#
# In the above case, IncomingUsername will be "bob"
and IncomingPassword will
# be "bob123".
#
When you have configured basic CHAP for each NIC initiator in the server, you have set
and enabled basic security on the server and storage system.
STEP 4. Restart the iSCSI service:
/etc/init.d/iscsi stop
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/etc/init.d/iscsi start
STEP 5. Run the Navisphere Server Utility to update the storage system with the server
information.
Configuring Basic CHAP on a Server with iSCSI HBAs
Configure basic initiator CHAP on each iSCSI HBA that communicates with the server:
STEP 1. Open the SANsurfer software.
STEP 2. Click the Target Settings tab.
STEP 3. Click Config Authentication on the bottom of the pane.
The default password is config.
STEP 4. Select the CHAP tab.
STEP 5. Under Initiator Name and Secret:
a. Click Enable for your target IP.
b. Select Set default initiator name and secret.
c. Type in the initiator name for your HBA initiator. This name must match the username
for the storage system.
d. Type in the secret that you configured in Navisphere Express.
The Initiator Name and Initiator Secret fields in the middle window display
will populate automatically.
e. Click OK.
STEP 6. Save your changes on the Target Settings window; (the default password remains config).
STEP 7. Verify that your session remains active.
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Configuring Advanced or Mutual CHAP on a Windows Server
with NICs
CAUTION
CHAP security must be enabled on the storage systembefore using the Configure
iSCSI connections on the Server Utility.
After entering CHAP data on the target, you must enter the same data on each NIC
initiatoryou log on to. On each initiator, you enter the initiator CHAP user account data
(username and secret) that the initiator sends to the target for authentication. This data is
one of the initiator usernames and secrets that you entered on the target. When the initiator
sends this data, the target compares it with an account database and authenticates the
initiator.
STEP 2. Select Configure iSCSI Connections on this server and click Next.
STEP 3. If you are setting up mutual CHAP, follow the steps below.
a. Select Configure Mutual CHAP and click Next.
b. In the Mutual CHAP Authentication window, enter the mutual CHAP secret
(password). If you have already configuredmutual CHAP on the storage system, enter
the same secret. Click Next.
You entered the mutual CHAP secret in the Add Initiator CHAP Credentials -
Advanced page.
c. Click Finish in the success window.
STEP 4. Select Configure iSCSI Connections and click Next.
STEP 5. In the iSCSI Targets and Connections window, select one of the following options to
discover the iSCSI target ports on the connected storage systems:
ꢀ
Discover iSCSI targets on this subnet scans the current subnet for all connected
SSR212PP2f-Series iSCSI storage system targets. The utility scans the subnet in the
range from 1 to 255. For example, if the current subnet is 10.12.77, the utility will
scan the IP addresses from 10.12.77.1 to 10.12.77.255.
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If CHAP authentication is enabled on all target ports on a storage system,
you cannot discover using a subnet scan. You must discover the targets using
the target portal.
ꢀ
ꢀ
Discover iSCSI targets for this target portal discovers targets known to the specified
iSCSI SP data port.
Discover iSCSI targets using this iSNS Server discovers the specified IP address of
the iSNS server.
STEP 6. Click Next. If you entered the IP address of the iSCSI target and you have CHAP
authentication enabled on that target, the CHAP login windows displays. Enter the CHAP
security information (username and secret) and if you have mutual CHAP configured on
the storage system and the server, check Mutual CHAP if you want mutual CHAP enabled
on the initiator. Click Next.
The utility scans for iSCSI target ports and displays the IP address for each target it
discovers.
STEP 7. In the iSCSI Targets window, select the IP address of the Inactive target.
STEP 8. Under Login Options, do the following:
ꢀ
ꢀ
Select Also login to peer iSCSI target for High Availability (recommended) if the peer
iSCSI target is listed. This allows the utility to create a login connection to the peer
target so if the target you selected above becomes unavailable, data would continue to
the peer target.
Leave the Server Network Adapter IP set to Default. This allows the iSCSI initiator to
automatically failover to an available NIC in the event of a failure.
If you are an advanced user and you want to control which network or subnet is
used, you can select a Server Network adapter IP address from the drop-down list
but failover may not occur.
STEP 9. Click Logon to connect to the selected target. If CHAP authentication is enabled on the
target, a CHAP login pop-up displays. Enter the CHAP security information (username
and secret) and if you have mutual CHAP configured on the storage system and the server,
check Mutual CHAP if you want mutual CHAP enabled on the initiator. Click OK.
STEP 11. Click Next. The server registration window opens and lists all connected storage systems.
STEP 12. In the server registration window, click Next to send the updated information to the
storage system. A success message displays.
STEP 13. Click Finish to close the wizard. You have set and enabled basic security on the server and
storage system.
You have completed the setup and enabling of advanced security on the server and storage
system.
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Configuring Advanced or Mutual CHAP on a Server with iSCSI
HBAs
STEP 1. Open the SANsurfer software.
STEP 2. Select the Target Settings tab.
STEP 3. Select Config Authentication from the bottom of the pane, and in the password prompt, use
the password config.
STEP 4. Select the CHAP tab.
STEP 5. Under Initiator Name and Secret:
a. Click Enable for your target IP.
b. If you are configuring mutual CHAP, select Bidi (bi-directional).
c. Select Set default initiator name and secret.
d. Type in the initiator name for your HBA initiator.
e. Type in the secret that you configured in Navisphere Express.
The Initiator Name and Initiator Secret fields in the middle window display will
populate automatically.
f. If you are configuring mutual CHAP:
i. Click the green plus sign (+) on the right of the Target Table portion of the CHAP
screen.
ii. Double-click the blank row in the Target Name column, and enter the target
CHAP username that you entered on the storage system.
iii. Double-click the row in the Target Secret column, and enter the target CHAP
secret that you entered on the storage system.
g. Click OK.
STEP 6. Save your changes on the Target Settings screen (the default password remains config).
STEP 7. Confirm that your session remains active.
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Configuring Advanced or Mutual CHAP on a Linux Server
with NICs
CAUTION
CHAP security must be enabled on the storage systembefore using the Configure
iSCSI connections on the Server Utility.
After entering CHAP data on the target, you must enter the same data for the NIC
initiators.
STEP 1. Open the /etc/iscsi.conf file on your server with vi or another editor.
STEP 2. For each NIC initiator in the server, enter the initiator CHAP user account data (username
and secret) that the initiator sends to the target for authentication.
This data is one of the initiator usernames and secrets that you entered on the target. When
the initiator sends this data, the target compares it with an account database and
authenticates the initiator.
The following example in the Authentication Settings section of the iscsi.conf file shows
advanced CHAP.
Username=john
Password=welcome
# or
OutgoingUsername=john
OutgoingPassword=welcome
The following example in the Authentication Settings section of the iscsi.conf file shows
advanced CHAP, which lets you set different usernames and secrets for each host initiator.
The first part shows one storage system; each SP has a different username and password.
The second part shows three storage systems; two use one username and password, and
the third uses a different username and password.
DiscoveryAddres=127.0.0.1 (Storage System1 SPA)
Username=john
Password=welcome
DiscoveryAddres=127.0.0.2 (Storage System1 SPB)
Username=betty
Password=bienvenue
#
# or
DiscoveryAddress=127.0.0.1 (Storage System1 SPA)
DiscoveryAddress=127.0.0.2 (Storage System1 SPB)
DiscoveryAddress=127.0.0.3 (Storage System2 SPA)
DiscoveryAddress=127.0.0.4 (Storage System2 SPB)
Username=john
Password=welcome
DiscoveryAddress=127.0.0.5 (Storage System3 SPA)
DiscoveryAddress=127.0.0.6 (Storage System3 SPB)
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Username=betty
Password=bienvenue
When you have configured advanced CHAP for each NIC initiator in the server, you have
completed the setup and enabling of advanced security on the server and storage system.
STEP 3. Restart the iSCSI service:
/etc/init.d/iscsi stop
/etc/init.d/iscsi start
STEP 4. Run the Navisphere Server Utility to update the storage system with the server
Adding NIC or iSCSI HBA Initiators to the CHAP Configuration
If the storage system is already configured for advanced CHAP with a unique secret for
each NIC or iSCSI HBA initiator and you are either adding a new server to the storage
system or a new NIC or iSCSI HBA to a server already connected to the storage system,
you need to add the NIC or iSCSI HBA initiator information to the storage system s
CHAP configuration.
If you set up basic CHAP for the storage system either through the Navisphere Express
Basic screen or through the Navisphere Express Advanced screen by allowing any
initiator to logon with the secret, you do not need to change the storage-system CHAP
configuration.
Setting up advanced initiator CHAP on the storage system
STEP 1. On your storage system management station, start Navisphere Express on the storage
STEP 2. In the Navisphere Express navigation pane, under Manage, click iSCSI to open the
Manage iSCSI screen.
STEP 3. To set advanced security, click Advanced.
STEP 4. In the iSCSI Security - Advanced screen, click Initiator CHAP Configuration.
STEP 5. In the Initiator CHAP Configuration - Advanced screen, click Add.
The Add Initiator CHAP Credentials - Advanced screen opens.
STEP 6. In Step 1 on the screen, select the initiator or initiators that will use the new CHAP
credentials.
You can allow any initiator to log in with the credentials you specify, (the equivalent of
basic CHAP), or you can restrict access to a specific initiator. To restrict access, you must
create a CHAP user for each server initiator.
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STEP 7. In Step 2 on the screen, enter a CHAP username. This name must match whatever is
entered as a username for the server.
You can manually enter a username, or, if logins are restricted to specific initiators
STEP 8. In Step 3 on the screen, enter and confirm a CHAP secret.
You will also enter this secret for the server initiators later.
You can specify the secret in ASCII or hexadecimal characters. ASCII secrets must consist
of at least 12 and no more than 16 characters. Hexadecimal secrets must consist of at least
12 and no more than 16 pairs of data (24 to 32 characters). If you specify the CHAP secret
using hexadecimal characters, you must select CHAP Secret Specified In Hex.
STEP 9. In Step 4 on the screen, either click Apply to set the advanced initiator CHAP credentials
or click Cancel to return to the Initiator CHAP Configuration - Advanced screen.
STEP 10. Click View all initiator CHAP credentials and confirm that the new CHAP entry exists.
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Preparing Virtual Disks to
Receive Data
27
Before a server can send data to a virtual disk,
ꢀ
Linux must recognize the disk, and you must partition the disk and then create and
mount a file system on it.
ꢀ
For Windows servers, the virtual disk must be initialized with a signature and you
must either create partitions on a basic disk or create volumes on a dynamic disk.
Preparing Virtual Disks for Linux
STEP 1. On the server, enter
powermt display dev=all
The commands shows the paths to all virtual disks on the storage system that the
servervirtual machine can access. Note the pseudo name for each set of sd devices listed.
A pseudo name represent a group of paths to a virtual disk; an sd device represents only
one path. Specifying the pseudo name provides path load balancing and failover, which
specifying an sd drive does not. Be sure to use the pseudo name in the following steps to
partition the virtual disk and create and mount a file system on the virtual disk.
STEP 2. For each virtual disk:
a. On the server enter
fdisk /dev/device_name
where device_name is the pseudo device name for the virtual disk.
For example: fdisk /dev/emcpowera
b. From the main fdisk menu, type n and press ENTER to add a new partition.
c. Type t and press ENTER to change a partition s system ID.
d. Type L and press ENTER for a list of hex codes for system IDs.
Linux is type 83; Linux swap is type 82.
e. Type p and press ENTER to print the partition table so you can verify that the selections
look correct.
STEP 3. Type w and press ENTER to write the table to disk and exit fdisk.
STEP 4. If you want to display the partition numbers created after Linux recognizes them, view the
file /proc/partitions.
STEP 5. Create a file system:
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mkfs /dev/device_namepartition_number
where device_name is the pseudo device name for the virtual disk and partition_number is
the partition number.
For example:
ꢁ
ꢁ
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For an ext2 file system type: mkfs /dev/emcpowera1
For an ext3 file system type: mkfs -j /dev/emcpowera1
For a reiser file system type: mkreiserfs -h r5 /dev/emcpowera1
STEP 6. When prompted to confirm the construction of a new file system, enter Y and press ENTER.
STEP 7. Create a mount directory for the file system:
mkdir / mount_point
For example:
mkdir /mnt/emcpowera
where /mnt/emcpowera is the complete path for the new file system.
STEP 8. Mount the file system. For a non-network file system:
mount -t file_system_type/device_partition_name mount_point
For example:
mount -t ext2 /dev/emcpowera1 /mnt/emcpowera
or
mount -t ext3 /dev/emcpowera1 /mnt/emcpowera
These commands mount the partition /dev/emcpowera1 onto the mount point
/mnt/emcpowera as the file system type specified. If you prefer, you can mount the file
system automatically at boot time by adding this information to the /etc/fstab file. The
following is an example of an /etc/fstab file entry for a PowerPath device:
/dev/emcpowera1 /mnt/emcpowera1 ext2 default 0 0
STEP 9. Save the server s PowerPath configuration:
powermt save
This command creates the powermt.ctm configuration file.
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Preparing Virtual Disks for Windows
Microsoft iSCSI Software Initiator does not support dynamic disks.
STEP 1. Log in to the Windows server as administrator or as a member of an Administrators group.
STEP 2. On the desktop, right-click My Computer and click Manage.
STEP 3. In the tree under Storage, click Disk Management.
STEP 4. If the Write Signature and Upgrade Disk Wizard opens, write a signature to each disk and
upgrade it to a dynamic disk, if desired:
a. In the wizard, click Next.
b. In the Select Disks to Write Signature screen, select all the disks and click Next.
c. In the Select Disks to Upgrade screen, make sure only the disks that you want to be
dynamic are selected, and then click Next and Finish.
The status of a virtual disk goes from unknown to basic or dynamic depending on
whether you chose to upgrade the disk.
STEP 5. If the Write Signature and Upgrade Wizard does not open, rescan for the virtual disks,
write a signature to each disk and upgrade it to a dynamic disk, if desired:
a. In the Computer Management tree under Storage, right-click Disk Management and
click Rescan Disks.
The virtual disks should appear as unknown disks in the Disk Management window. If
they do not appear, restart Windows, and when Windows is running, rewrite the digital
signature as described in the previous step.
b. Right-click any unknown disk in the Disk Management window, and click Write
Signature.
c. In the Write Signature Wizard screen, select all the disks and click OK.
The status of any unknown disks becomes basic.
d. If you want to upgrade a basic disk to a dynamic disk, right-click the disk, click
Upgrade to Dynamic Disk, select the disk you want to upgrade, and click OK.
The status of any basic disks you selected to upgrade becomes dynamic.
STEP 6. To create Windows partitions on a basic disk for a Windows server
a. In the Disk Management screen, right-click the free space area of the basic disk that
you want to partition, and click Create Partition.
b. In the Create Partition Wizard, click Next and follow the instructions that appear on
the screen to select a primary or extended partition, specify the partition size, and
assign a drive letter or path for the partition.
c. In the Format Partition screen, select Quick Format, and follow the instructions that
appear.
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d. If you want a logical drive on an extended partition, create it:
i. Right-click the free space area of the extended partition, and click Create Logical
Drive.
ii. In the Create Logical Drive Wizard, click Next and click Logical Drive.
iii. Follow the instructions that appear on the screen to specify the partition size and
assign a drive letter or path for the partition.
iv. In the Format Partition screen, select Quick Format, and follow the instructions
that appear.
STEP 7. To create volumes on dynamic disks for a Windows server:
The Navisphere Server Utility cannot assign a drive letter to a snapshot of a
dynamic disk.
a. In the Disk Management screen, right-click the free space area for the dynamic disk
on which you want to create volumes and click Create Volume.
b. In the Create Volume Wizard, click Next and follow the instructions that appear on the
screen to specify the volume type, select disks, and assign a drive letter or path for the
volume.
c. In the Format Partition screen, select Quick Format, and follow the instructions that
appear.
STEP 8. Save the server s PowerPath configuration:
powermt save
This command creates the powermt.custom configuration file.
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Verifying the Failover
28
Configuration
Before you store data on virtual disks, use the procedure in this section to verify that:
The server can send data to and receive data from the storage system.
ꢀ
You can download an I/O simulator (Iometer) for writing data to the storage system
from the following website: http://www/iometer.org/.
ꢀ
PowerPath shows the paths from the server to the virtual disk that you expect for your
configuration.
Verifying the Failover Configuration for a Windows 2003
Server Host
STEP 1. If you connected a new server to an existing storage system, stop all applications
accessing the storage system and disable user logins to the server.
STEP 2. Start PowerPath for iSCSI:
ꢀ
ꢀ
i. Select Start Settings Control Panel.
ii. On the Control Panel, do one of the following:
ꢀ
¥SelectAdministrative Tools Computer Management, or
¥Click theMy Computer icon on your Desktop and select Manage from the menu.
The PowerPath iSCSI application resides under the Storage component of the
Computer Management utility.
STEP 3. On the Computer Management panel, select PowerPath iSCSI.
STEP 4. In the left pane, expand Disks.
STEP 5. Click on each virtual disk to display a list of :paths to the disk, and verify that all paths are
listed. (Missing or failed paths do not, appear in the list of paths.)
If a path is missing, refer to the "Troubleshoot" section on the SSR212PP support
website or the SSR212PP2f-Series Documentation CD.
STEP 6. Start writing data to a virtual disk.
STEP 7. For each NIC or iSCSI HBA connected to the storage system:
a. Disconnect the cable from one NIC or iSCSI HBA connected to the storage system.
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b. Scan for hardware changes:
i. On the desktop, right-click My Computer and click Manage.
ii. In the tree under System Tools, click Device Manager.
iii. Click Disk Drives and Scan for hardware changes.
c. Verify that at least one path is missing to the disk to which you are writing data:
i. Under PowerPath iSCSI (under Computer Management), expand Disks.
ii. Click the disk to which you are writing data and verify the its path list has at least
one path missing.
d. Reconnect the cable that you disconnected from theNIC or iSCSI HBA.
e. Scan again for hardware changes:
i. On the desktop, right-click My Computer and click Manage.
ii. In the tree under System Tools, click Device Manager.
iii. Click Disk Drives and then Scan for hardware changes.
f. Verify the paths to the disk to which you are writing data:
i. Under PowerPath iSCSI (under Computer Management), expand Disks.
ii. Click the disk to which you are writing data and verify that its path list has all
paths listed and that one path is active.
STEP 8. Restart any applications that you stopped and re-enable any user logins to the server that
you disabled.
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Verifying the Failover Configuration for a Windows Server
STEP 1. If you connected a new server to an existing storage system, stop all applications
accessing the storage system and disable user logins to the server.
STEP 2. Launch PowerPath Administrator by double-clicking the PowerPath Monitor on the
Windows task bar.
STEP 3. On the left pane (summary pane), click EMC PowerPathAdministrator.
STEP 4. Under the server, right-click Disks.
The right (details) pane lists all the virtual disks in each storage system connected to the
server. Storage ID identifies each storage system. For each disk, the Path Status and the
Path Metric columns give the status of the paths to the disk. When all n paths to a disk are
working, the Path Status for the disk is optimal and the Path Metric for the disk is n/n,
indicating that n of n paths are working. If only m paths are working, the path metric is
m/n.
STEP 5. Verify that all n paths to the disks in the storage system are working, that is, their status is
optimal and their path metric is n/n. If not all the paths are working, refer to the
"Troubleshoot" section on the SSR212PP support website or the SSR212PP-Series
Documentation CD.
STEP 6. For each HBA connected to the storage system:
a. Start writing data to a virtual disk.
b. Disconnect the cable from oneHBA connected to the storage system.
c. After several seconds, look at the Details pane and verify that one or more of the disks
in the storage system have red slashes through them, their status is degraded, and their
path metric is m/n, where n is the number of paths to the disk and m is the number of
working paths, which is less than n. For example, if the server has 4 paths to a disk in
the storage system and 1 path fails when you disconnect the cable, then n=4 and m=3,
so the path metric is 3/4.
d. Reconnect the cable that you disconnected from the HBA.
e. Right-click the PowerPath Monitor icon on the task bar, and select All Tasks and
Restore All Devices.
f. After several seconds, look at the details pane and verify that none of the disks in the
storage system have red slashes through them, their status is optimal, and their path
metric is n/n.
STEP 7. Restart any applications that you stopped and re-enable any user logins to the server that
you disabled.
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Verifying the Failover Configuration for a Linux Server
STEP 1. If you connected a new server to an existing storage system, stop all applications
accessing the storage system and disable user logins to the server.
STEP 2. For each HBA connected to the storage system:
a. View the virtual disks available to the server:
powermt display dev=all
b. Choose one available virtual disk to receive data (I/O) for the test.
c. View the paths to the chosen virtual disk:
powermt display dev= x every=2
where x is a pseudo device that represents the chosen virtual disk.
d. Start sending data to a virtual disk by writing data to it.
e. Identify the HBA sending data to the virtual disk by viewing the output of the
powermt display dev=x every=2 command, and disconnect the cable to that HBA.
f. View the output of the powermt display dev=x every=2 command, and verify that:
ꢁ
ꢁ
The state of the uncabled paths becomes "dead."
Data continues to be sent on the remaining path(s) to the virtual disk , indicating
that the failover path was successful and that PowerPath is working properly.
g. Reconnect the cable that you disconnected from the HBA.
h. If you caused any virtual disks to fail over, restore the disks to their original SP:
powermt restore
STEP 3. Restart any applications that you stopped and re-enable any user logins to the server that
you disabled.
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Running Navisphere
Express
29
STEP 1. Open an Internet browser on the management host.
STEP 2. Enter the IP address of an SP in the storage system. This address is the one you assigned
when you initialized the storage system.
If Navisphere Express does not open, make sure that the storage system is
not rebooting. The SP Boot/Fault light on the back of each SP should be off.
If the storage system is not rebooting and Navisphere Express still does not
open, go to the "Troubleshoot" section on the SSR212PP support website or
the SSR212PP-Series Documentation CD.
STEP 3. Log in to Navisphere Express by entering the username and password that you specified
when you initialized the storage system.
To view Navisphere Express in Brazilian Portuguese, English, French,
German, Italian, Korean, Japanese, Latin American Spanish, or simplified
Chinese, follow the instructions in Adding a Navisphere Language Pack.
You can create this document on the SSR212PP2f website by selecting
Upgrade and then Add Navisphere Language Pack as the upgrade type. Once
you install a language pack, Navisphere Express automatically opens in that
language.
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Running the Navisphere
Server Utility
30
This procedure provides server-specific instructions for running the Navisphere Server
Utility on Linux, Netware, and Windows servers.
On Linux
STEP 1. On the server, run the utility by entering /opt/Navisphere/bin/naviserverutilcli
STEP 2. In the Server Utility, enter 1 to select Update Server Information. The utility automatically
scans for connected SSR212PP-Series storage systems, and displays a list of the ones it
finds.
STEP 3. In the Server Utility, enter u to register the server with each storage system the utility
found.
The utility sends the server s name and IP address to each storage system. Once the server
has storage on the storage system, the utility also sends the Linux server device name and
volume or file system information for each virtual disk in the storage system that the
server sees.
STEP 4. Enter c (cancel) to stop the utility.
On a Windows Server
You need to run the Server Utility only if you disabled the Registration Service during the
installation of the utility (it is enabled by default).
STEP 1. Run the Navisphere Server Utility by clicking
ꢀ
ꢀ
ꢀ
ꢀ
Start Programs EMC Navisphere Navisphere Server Utility.
STEP 2. Select your language, if prompted for it.
STEP 3. In the Navisphere Server Utility dialog box, select Register this server to all connected
storage systems.
The utility automatically scans for all connected SSR212PP-Series storage systems and
lists them under Connected Storage Systems. Locate the WWN of the HBA you just
installed. The HBA should appear once for every SP port it is connected to.
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If the utility is already running, it does not automatically perform a scan, and you
must click Rescan.
STEP 4. Click Next to register the server with the storage system.
To each storage system, the utility sends the server s name and IP address. Once the server
has storage on the storage system, the utility also sends the device name and volume or
file system information for each virtual disk in the storage system that the server sees.
STEP 5. Click Finish to exit the utility.
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Applying iSCSI Data Port
Addresses to the SP
Assembly
31
Perform the following procedure after replacing an iSCSI storage processor assembly.
Replacing a Fibre Channel assembly does not require these steps.
STEP 2. Select Services from the System options, and then Reboot.
STEP 3. Select Reboot both SPs.
The storage system takes several minutes to reboot. You can monitor the LEDs on
the back of the system, or simply wait until the system allows you to restart
Navisphere Express from the System Reboot page.
STEP 4. Repeat Steps 1—3.
STEP 6. Select iSCSI from the Manage options, then click Apply.
STEP 7. From the Manage iSCSI page, select Test.
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Restoring a Storage
Processor Boot Image
32
This procedure explains how to restore a storage processor s boot image (SP boot image).
When a storage processor (SP) does not start properly and its fault light blinks four times a
second, the cause may be that the SP s boot image has been damaged and is unusable. If
so, a qualified service provider will guide you through the process that this procedure
describes.
CAUTION
Before restoring the boot image, try to correct a startup problem by turning
power to the storage system off, and then on again.
Do not attempt the restoration procedure without the assistance of your
authorized service provider.
Terminology
Boot partition A reserved space on one disk, mirrored on another disk, that holds the
storage processor (SP) operating system. Each SP loads its operating
system from one of its boot partitions when powered up or reset.
Image repository
A reserved space that holds images you can use to restore an SP s boot
image.
Primary boot disk
The lower numbered disk in the mirrored boot pair for an SP. For SPA, it
is disk 0; for SP B, disk 1.
SP boot light The amber status lamp visible from the back of an SP. The speed at which
it blinks indicates the SP startup operation, as follows:
Blink Behavior
Meaning
Every 4 seconds
Every second
The SP is running powerup diagnostics.
The SP is running software diagnostics.
Four times a second The SP is booting (starting up).
Off The SP is running normally.
If the status lamp is on and not blinking then the storage system may have
a voltage fault or SP fault.
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Secondary boot disk
The higher numbered disk in the mirrored boot pair for an SP. For SPA, it
is disk 2; for SP B, disk 3.
Utility partition A reserved space on the first four drives of a storage system that holds
recovery software.
TABLE 3.
Locations of Boot and Utility Partitions and Image Repository
Disks
0
1
2
3
SP A primary boot
partition
SP B primary boot
partition
SP A primary boot
partition
SP B primary boot
partition
SP A primary utility
partition
SP A secondary utility
partition
SP B primary utility
partition
SP B secondary utility
partition
Image Repository
Image Repository
Image Repository
Restoring an SP Boot Image
This procedure describes recovering the SP boot image for a storage processor in an
SSR212PP-Series storage system.
Follow this procedure if an SP hangs during startup and cannot boot. An SP indicates that
it is trying to boot by flashing the amber light on its back panel four times a second. If it
cannot boot, it continues flashing the light four times each second or remains steadily on.
Normally, you can recover an SP s boot image using the steps in this section. But if no
valid SP boot image exists on your storage system, you need to use FTP to load one. See
STEP 1. Your storage system shipped with a null modem serial cable (service cable) that is unused
except for service. In some cases, an extra RJ45—DB9 adapter was shipped with the
service cable.
If your service cable has a DB9 connector on one end and an RJ45 connector at the other,
If your service serial cable has DB9—DB9 connectors, you also need the RJ45—DB9
adapter cable supplied with your system; connect the serial cable and adapter together.
The null modem cable and SPS sense cable look similar but are not
interchangeable. If your system shipment included two RJ45—DB9 adapters, either
works.
STEP 2. Connect the service serial cable between a server or laptop s COM 1 or COM 2 port and
service port of the SP that does not boot.
Figure 62 shows a cable connection between a COM port and SP A.
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UPS (SP A only)
+ -
Service
LAN
COM 1 or COM 2
EMC3345
FIGURE 62. Connecting a Server or Laptop COM Port to an SP Service Port
STEP 3. Start a HyperTerminal session.
A HyperTerminal session lets you communicate with a device in this case an SP
connected over a COM port to a Windows server or laptop station.
If you do not have a Windows station available, you can use terminal emulator
software for Linux systems. The remainder of this guide describes the steps you
would encounter using HyperTerminal on a Windows server or laptop; the
procedure for other systems is similar.
a. To start a HyperTerminal session, follow this path:
ꢀ
ꢀ
ꢀ
ꢀ
Start Programs Accessories Communications Hyperterminal
b. When the software asks for a name, create a meaningful name (for example,
SSR212PP2f), and then click OK. The software displays a Connect to screen.
c. In the Connect using box, select COM1 or COM2 from the pull-down list. The
software displays a settings screen.
d. Select the following settings:
Bits per second: 9600
Data bits: 8
Parity: None
Stop bits: 1
Flow Control: None
e. Click OK. The HyperTerminal session is now running, as you can see from the timer
displayed at the lower left of the screen. You use this session to communicate with the
SP.
STEP 4. Reset the problem SP, and watch for the alphabetic powerup test display in the
HyperTerminal window.
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The easiest way to reset the SP is to unplug and then plug in the line cord to the SP s
Retention
Bail
EMC3265
FIGURE 63. Removal of an SP Power Cord from an SSR212PP-Series Power
Supply
The SP begins its boot sequence and runs diagnostic tests.
STEP 5. When the alphabetical test starts, press the Esc key anytime during the sequence shown
below.
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FIGURE 64. Screen Shot: Interrupting the Alphabetic Test
The screen displays the following message: Contact your Service Representative...
STEP 6. Type recover (case sensitive) and press Enter. The storage processor boots from its utility
normally takes 2—4 minutes, but can take longer.
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FIGURE 67. Screen Shot: Select Images to Install
STEP 9. Select the recovery image to install. The correct filename has the form
FLARE-aa.bb.ccc.d.eee.mif.
CAUTION
If there is no filename with the form FLARE-aa.bb.ccc.d.eee.mif, then no
recovery image exists. You cannot continue with this procedure until you have
After you have specified an image, the software displays the Confirm Image Installation
screen.
STEP 10. Enter y if the image selection is correct. The software then displays the Select Storage
Processors to Install screen.
STEP 11. Select This SP as the SP you want to recover because it is the SP you physically connected
with the serial cable.
For example, if you are restoring the image to SP B, select SP B only. Do not try to restore
images to both SPs in one procedure.
After you have selected an SP, the software copies the image to the boot drives of that SP.
It displays a screen that shows the percentage copied, similar to the one shown in
Figure 68. The copy may take up to 10 minutes.
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FIGURE 68. Screen Shot: Copying the Boot Image
For SSR212PP2f or SSR212PPf (Fibre Channel) systems, skip Steps 12—15
STEP 12. Verify that the operation completed successfully. You will see Successas shown in
STEP 13. Press Enter to continue. The software displays the Toolkit Main Menu.
STEP 14. Select the Reset Storage Processor option.
The SP boots using the image you selected. It boots 3 times, and each boot may take up to
3 minutes. Be patient.
After the SP reboots, the amber LED on the SP back panel should be off.
STEP 16. Select iSCSI from the Manage options, then select the port settings for the SP whose
image you just restored and press the Apply button.
STEP 17. From the Manage iSCSI page, select Test.
STEP 18. Enter the IP address of the host NIC/HBA, and Ping the host to verify connectivity.
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STEP 19. Disconnect the service serial cable and adapter (if present) from the SP and the
server/laptop and store it in a safe place.
STEP 20. Close your HyperTerminal session. You have restored an SP boot image.
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Using FTP to Obtain and
Store an SP Boot Image
33
This procedure explains how to load and use an SP boot recovery image using FTP (File
Transfer Protocol).
Use this procedure if there is no usable recovery image in the storage system. The
instructions assume that you have opened a HyperTerminal (or equivalent) session and
If you stopped the preceding recovery procedure at step 6, the software is displaying the
Select Images to Install screen without a file of the form FLARE-aa.bb.ccc.d.eee.mif
FIGURE 69. Screen Shot: Select Images to Install
STEP 1. Obtain a recovery file, or information on how to access a recovery file, from your
authorized service provider. The recovery filename has the form FLARE-
aa.bb.ccc.d.eee.mif.
STEP 2. On the Select Images to Install screen, press the Enter key without specifying a number.
The software displays the Confirm Image Installation screen.
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STEP 3. Enter n. The software displays the Toolkit Screen Main Menu.
STEP 4. Select Enable LAN Service Port. The software displays the Enable LAN Service Port
screen and prompts for network information.
STEP 5. As prompted, enter the IP address, subnet mask, and default gateway of the SP you
connected to the serial port.
You recorded these parameters on your Administration Worksheet when you
initially installed your SSR212PP-Series storage system.
The software confirms the settings you entered and asks if you want to proceed. The entire
screen, with the information you entered, appears similar to the screen shown in
FIGURE 70. Screen Shot: Confirm LAN Service Port Configuration
STEP 6. If the settings are correct, enter y. The software displays the following option:
Automatically enable the LAN Port with these settings in the future?
STEP 7. Enter y to continue.
STEP 8. Open a browser or an FTP client software package using the form ftp://ipAddress, where
ipAddress is the SP s IP address (for example, ftp://10.14.17.128). When the software
makes the connection, a login window appears.
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STEP 9. At the login prompt, enter the username clariion (if not already present) and the password
clariion!
STEP 10. Use your browser to select the recovery file obtained from your service provider, and drag
and drop it into the FTP window.
STEP 11. Install the SP image in the image repository.
By putting the image in the repository, you can restore it without using FTP in the
unlikely event the SP image becomes unusable again.
a. Select Image Repository Sub-Menu.
b. Select the option Copy files from RAM disk to Image Repository.
c. Select the file you just copied using FTP.
d. Press Enter to continue. The software copies the image to the repository.
e. Enter 1 to return to the Toolkit Main Menu.
STEP 12. In the Utility Toolkit window, select Install images.
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