ETERNUS Disk storage systems Server Connection Guide (iSCSI

Preface

This document briefly explains the operations that need to be performed by the user in order toconnect an ETERNUS2000 model 100 or 200 Disk storage system to a server running SolarisOS, HP-UX, Windows®, Linux, VMware ESX via an iSCSI interface.This document should be used in conjunction with other applicable user manuals, such as thosefor the ETERNUS2000 model 100 or 200 Disk storage system, server, OS used, iSCSI HBAs,LAN cards, drivers, etc.This document references the following documents:

• ETERNUSmgr User Guide

Also, note that in this document the ETERNUS2000 models 100 and 200 Disk storage systemsare collectively referred to as ETERNUS Disk storage systems.

Second EditionDecember 2010

The Contents and Structure of this Manual

This document is composed of the following two chapters.

• Chapter 1 Workflow

This describes the workflow when setting up an ETERNUS Disk storage system.

• Chapter 2 ETERNUS Disk Storage System Connection Settings

This describes the settings used when connecting an ETERNUS Disk storage system.

Safe Use of this Product

■ Using this manual

This manual contains important information to ensure the safe use of this product. Be sure tothoroughly read and understand its contents before using the product. After reading, store thismanual in a safe place for future reference.FUJITSU has made every effort to ensure the safety of the users and other personnel, and toprevent property damage. When using this product, carefully follow the instructions described inthis manual.

Server Connection Guide (iSCSI) ETERNUS Disk Storage System Settings

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Preface

Acknowledgments

• Oracle and Java are registered trademarks of Oracle and/or its affiliates.• HP-UX is a trademark of Hewlett-Packard Company in the U.S. and other countries.• Microsoft, Windows and Windows Server are either registered trademarks or trademarks of

Microsoft Corporation in the U.S. and/or other countries.• Linux is a trademark or registered trademark of Linus Torvalds in the USA and other

countries.• Red Hat and all Red Hat-based trademarks and logos are trademarks or registered

trademarks of Red Hat, Inc. in the USA and other countries.• SUSE is a registered trademark of SUSE Linux AG., a subsidiary of Novell, Inc.• VMware and VMware logos are either registered trademarks or trademarks of VMware, Inc. in

the U.S. and/or other countries.• The company names, product names and service names mentioned in this document are

registered trademarks or trademarks of their respective companies.

Naming Conventions

■ Product names

• Oracle Solaris might be described as Solaris, Solaris Operating System, or Solaris OS.

• "HP-UX" represents the following products.- HP-UX 11iv2

• "Windows Server® 2008 R2" represents the following products.- Microsoft® Windows® Web Server 2008 R2- Microsoft® Windows Server® 2008 R2 Standard- Microsoft® Windows Server® 2008 R2 Enterprise- Microsoft® Windows Server® 2008 R2 Datacenter- Microsoft® Windows Server® 2008 R2 for Itanium-based Systems- Microsoft® Windows® HPC Server 2008 R2

• "Windows Server® 2008" represents the following products.- Microsoft® Windows Server® 2008 Standard- Microsoft® Windows Server® 2008 Enterprise- Microsoft® Windows Server® 2008 Datacenter- Microsoft® Windows® HPC Server 2008

• "Windows Server® 2003" represents the following products.- Microsoft® Windows Server® 2003, Standard Edition- Microsoft® Windows Server® 2003, Enterprise Edition- Microsoft® Windows Server® 2003, Standard x64 Edition- Microsoft® Windows Server® 2003, Enterprise x64 Edition- Microsoft® Windows Server® 2003 R2, Standard Edition

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Preface

- Microsoft® Windows Server® 2003 R2, Enterprise Edition- Microsoft® Windows Server® 2003 R2, Standard x64 Edition- Microsoft® Windows Server® 2003 R2, Enterprise x64 Edition- Microsoft® Windows Server® 2003, Enterprise Edition for Itanium-based Systems- Microsoft® Windows Server® 2003, Datacenter Edition for Itanium-based Systems- Microsoft® Windows® Storage Server 2003 R2, Standard Edition- Microsoft® Windows® Storage Server 2003 R2, Enterprise Edition- Microsoft® Windows® Storage Server 2003 R2, Standard x64 Edition- Microsoft® Windows® Storage Server 2003 R2, Enterprise x64 Edition

• "Linux" represents the following products.- Red Hat Enterprise Linux 5 (for x86)- Red Hat Enterprise Linux 5 (for Intel Itanium)- Red Hat Enterprise Linux 5 (for Intel64)- Red Hat Enterprise Linux AS (v.4 for x86)- Red Hat Enterprise Linux AS (v.4 for Itanium)- Red Hat Enterprise Linux AS (v.4 for EM64T)- Red Hat Enterprise Linux ES (v.4 for x86)- Red Hat Enterprise Linux ES (v.4 for EM64T)- Red Hat Enterprise Linux WS (v.4)- SUSE Linux Enterprise Server- SUSE Linux Enterprise Server 11- SUSE Linux Enterprise Server 11 Service Packx- SUSE Linux Enterprise Server 11 for x86- SUSE Linux Enterprise Server 11 for EM64T- SUSE Linux Enterprise Server 11 for Itanium Processor Family- SUSE Linux Enterprise Server 11 Service Packx for x86 - SUSE Linux Enterprise Server 11 Service Packx for EM64T - SUSE Linux Enterprise Server 11 Service Packx for Itanium Processor Family - SUSE Linux Enterprise Server 10- SUSE Linux Enterprise Server 10 Service Packx- SUSE Linux Enterprise Server 10 for x86- SUSE Linux Enterprise Server 10 for EM64T- SUSE Linux Enterprise Server 10 for Itanium Processor Family- SUSE Linux Enterprise Server 10 Service Packx for x86 - SUSE Linux Enterprise Server 10 Service Packx for EM64T - SUSE Linux Enterprise Server 10 Service Packx for Itanium Processor Family - SUSE Linux Enterprise Server 9- SUSE Linux Enterprise Server 9 Service Pack x- SUSE Linux Enterprise Server 9 for x86- SUSE Linux Enterprise Server 9 for EM64T- SUSE Linux Enterprise Server 9 for Itanium Processor Family- SUSE Linux Enterprise Server 9 for x86 Service Pack x- SUSE Linux Enterprise Server 9 for EM64T Service Pack x- SUSE Linux Enterprise Server 9 for Itanium Processor Family Service Pack x

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Preface

• "VMware ESX" represents the following products.- VMware vSphere (ESX 4.1, ESXi 4.1, ESX 4.0, ESXi 4.0)- VMware Infrastructure 3 (ESX 3.5, ESXi 3.5)

■ Other names

• "iSCSI port" refers to the iSCSI interface module used in the ETERNUS Disk storage systems to connect to the server.

• "LAN card" refers to the iSCSI interface module normally used in the server. An "onboard LAN", "network interface card" (NIC), "LAN adapter", or "LAN board" may be used instead.

• " iSCSI cable" refers to the cable that is used to connect the ETERNUS Disk storage systems and server over an iSCSI interface. "LAN cable" or "twisted pair cable" may be used instead, depending on the storage system.

• Italics are used to show variables such as values and characters that appear in command parameters and output examples.

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Contents

Chapter 1 Workflow ...................................................................................9

Chapter 2 ETERNUS Disk Storage System Connection Settings .......112.1 Common Settings ............................................................................................. 11

2.1.1 Setting the To-server Connection Type (Setting the Port Parameters) ..................................... 112.1.2 Setting the Host Response Patterns ......................................................................................... 122.1.3 Setting the Server iSCSI Host ................................................................................................... 142.1.4 Creating and Allocating LUN Groups (Setting Host Affinity Groups) ......................................... 152.1.5 Setting CHAP Authentication ..................................................................................................... 15

2.2 OS Specific Settings ........................................................................................ 162.2.1 Setting the Port Reset Groups ................................................................................................... 162.2.2 Setting the Sub System Parameters (for HP-UX only) .............................................................. 17

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Table of Contents

Table 2.1 iSCSI port parameter settings ................................................................................................... 11Table 2.2 Reservation Conflict Response for Test Unit Ready setting for Solaris OS .............................. 12Table 2.3 Sense Code Conversion setting for Solaris OS......................................................................... 12Table 2.4 Host Specific Mode setting for HP-UX....................................................................................... 12Table 2.5 Vendor Unique Sense Code setting for HP-UX......................................................................... 12Table 2.6 Reservation Conflict Response for Test Unit Ready setting for Windows® .............................. 13Table 2.7 Sense Code Conversion setting for Windows®......................................................................... 13Table 2.8 Sense Code Conversion setting for Linux ................................................................................. 13Table 2.9 Inquiry Standard Data Version setting for VMware ESX ........................................................... 13Table 2.10 Sense Code Conversion setting for VMware ESX .................................................................... 14Table 2.11 Inquiry Standard Data Version setting for Windows®-based VMware VCB Proxy server......... 14Table 2.12 Host Specific Mode setting for Windows®-based VMware VCB Proxy server.......................... 14

Chapter 1 Workflow

This manual is used when performing the setup procedures described in the "Setting up theETERNUS Disk storage systems" section of the "ETERNUS Disk storage systems ServerConnection Guide (iSCSI)" for each OS.

Workflow

Set the Port ParametersSet the to-server connection type.

- "2.1.1 Setting the To-server Connection Type (Setting the Port Parameters)" (page 11)

Set the Host Response PatternsSet up the host response patterns to match the connection configuration.

- "2.1.2 Setting the Host Response Patterns" (page 12)

Register the Host iSCSISet IP addresses, aliases, and iSCSI names for servers.

- "2.1.3 Setting the Server iSCSI Host" (page 14)

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Chapter 1 Workflow >

After completing all the required procedures in this manual, follow the procedures in"ETERNUS Disk storage systems Server Connection Guide (iSCSI)" for each OS.

Set the Host Affinity GroupsCreate LUN groups and define the LUN group associations.

- "2.1.4 Creating and Allocating LUN Groups (Setting Host Affinity Groups)" (page 15)

When setting CHAP authentication When not setting CHAP authentication

Set CHAP AuthenticationSet CHAP authentication to enhance security for an iSCSI connection.

- "2.1.5 Setting CHAP Authentication" (page 15)

Set the Port Reset GroupsAssign the iSCSI ports of the ETERNUS Disk storage system to the same port reset group, depending on the connection conditions.

- "2.2.1 Setting the Port Reset Groups" (page 16)

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Chapter 2 ETERNUS Disk Storage System Connection Settings

2.1 Common Settings

This section explains the settings required for all server OSes, regardless of the connection con-figuration. See the "ETERNUSmgr User Guide" for details of how to set up and operate theETERNUSmgr.

2.1.1 Setting the To-server Connection Type (Setting the Port Parameters)

For each connection configuration, perform the following iSCSI port parameter settings only. Allother parameters should be left on their default values.

Table 2.1 iSCSI port parameter settings

Parameter Solaris OS, HP-UX, Windows®, Linux, VMware ESX

TCP/IP Settings

IP address Arbitrary

Subnet mask Arbitrary

Gateway Arbitrary

iSNS Server Select [ON] (enabled) by radio button to use the iSNS server, and specify the IP address for the iSNS server.

iSCSI Settings

iSCSI name ArbitraryCaution:When configuring multipaths, specify a different name for each iSCSI port.If the same iSCSI name is specified for multiple ports, connection via multipaths may not be available.

Alias name Arbitrary

General Settings

Host Affinity Mode Enable (Default value)

Host Response Disable (When "Host Affinity Mode" is set to "ON")

Reset Scope I_T_L (Default value)

Cancel Reservation at Chip Reset Disable (Default value)

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Chapter 2 ETERNUS Disk Storage System Connection Settings > 2.1 Common Settings

2.1.2 Setting the Host Response Patterns

The ETERNUS Disk storage system Host Response parameters must be set to match the way inwhich the server will process the ETERNUS Disk storage system request responses.These are different for each OS and this must be done before connecting the ETERNUS Diskstorage system to the server.Retain the default values for all parameters not described below.

2.1.2.1 Solaris OS

For Solaris OS, perform the settings detailed in Table 2.2 and Table 2.3.

Table 2.2 Reservation Conflict Response for Test Unit Ready setting for Solaris OS

Table 2.3 Sense Code Conversion setting for Solaris OS

2.1.2.2 HP-UX

For HP-UX, perform the settings detailed in Table 2.4 and Table 2.5.

Table 2.4 Host Specific Mode setting for HP-UX

Table 2.5 Vendor Unique Sense Code setting for HP-UX

Security

CHAP authentication OFF (Default value): When both unidirectional CHAP authentication and bidirectional CHAP authentication are not usedON: When either unidirectional CHAP authentication or bidirectional CHAP authentication is used

User name When using bidirectional CHAP authentication, set a pass-word.When using unidirectional CHAP authentication, a CHAP user name and password do not need to be set.

New password

Confirm new password

Header Digest OFF (Default value)

Data Digest OFF (Default value)

Parameter Solaris OS, HP-UX, Windows®, Linux, VMware ESX

OS Setting

Solaris 10 OS Conflict response

OS [Sense Code Conversion] setting

Solaris 10 OS Linux recommended

OS [Host Specific Mode] setting

HP-UX HP-UX Mode

OS [Vendor Unique Sense Code] setting

HP-UX Do not report

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2.1.2.3 Windows®

For Windows®, perform the settings detailed in Table 2.6 and Table 2.7.

Table 2.6 Reservation Conflict Response for Test Unit Ready setting for Windows®

When a Windows® server and ETERNUS Disk storage system are connected via a single pathconnection using an ETERNUS Multipath Driver, set the host response Sense Code ConversionPattern to [No conversion].If connection is performed without using an ETERNUS Multipath Driver, set the host responseSense Code Conversion Pattern to [Windows (when ETERNUS MPD not used) recommended].

Table 2.7 Sense Code Conversion setting for Windows®

2.1.2.4 Linux

For Linux, perform the settings detailed in Table 2.8.

Table 2.8 Sense Code Conversion setting for Linux

2.1.2.5 VMware ESX

For VMware ESX, perform the settings detailed in Table 2.9 and Table 2.10. The required setting value depends on what version of ESX is being used.

Table 2.9 Inquiry Standard Data Version setting for VMware ESX

OS MSCS or WSFC configuration All other configurations

Windows Server® 2008Windows Server® 2008 R2 Normal response (Default)

Normal response (Default)Windows Server® 2003 Conflict response

OSETERNUS Multipath Driver,

ETERNUS Device Driver msdsmUsed Not used

Windows Server® 2008Windows Server® 2008 R2 No conversion

(Default)

Windows (when ETERNUS MPD not used) recommended

Windows Server® 2003 —

OSETERNUS Multipath Driver

device-mapperUsed Not used

Red Hat Enterprise Linux No conversion (Default) Linux recommended Linux recommended

SUSE Linux Enterprise Server

OS [Inquiry Standard Data Version] setting

VMware vSphere (ESX 4.1, ESXi 4.1, ESX 4.0, ESXi 4.0) Version5 (Default)

VMware Infrastructure 3 (ESX 3.5, ESXi 3.5) Version4

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Table 2.10 Sense Code Conversion setting for VMware ESX

When connecting a Windows®-based VMware VCB Proxy server to the ETERNUS Disk storagesystem, and the LUNs are shared between the VMware VCB Proxy server and VMware ESXserver, the setting detailed in Table 2.11 and Table 2.12 should be used.

Table 2.11 Inquiry Standard Data Version setting for Windows®-based VMware VCB Proxy server

Table 2.12 Host Specific Mode setting for Windows®-based VMware VCB Proxy server

2.1.3 Setting the Server iSCSI Host

Register the IP addresses and iSCSI names of each server that will access the ETERNUS Diskstorage system. At the same time, set the Host Response No. registered in "2.1.2 Setting theHost Response Patterns" (page 12).Registering the IP addresses and setting up Host Affinity Groups in "2.1.4 Creating andAllocating LUN Groups (Setting Host Affinity Groups)" (page 15), allows access restrictions(secu-rity) for the ETERNUS Disk storage system to be set on a per-server basis.See "Set Host iSCSI Initiator" of "ETERNUSmgr User Guide" for details.

OS [Sense Code Conversion] setting

VMware vSphere (ESX 4.1, ESXi 4.1, ESX 4.0, ESXi 4.0)VMware Infrastructure 3 (ESX 3.5, ESXi 3.5)

Linux recommended

OS [Inquiry Standard Data Version] setting

Windows Server® 2008 used as a VCB Proxy server Version5 (Default)

Windows Server® 2003 used as a VCB Proxy server Version4

OS [Host Specific Mode] setting

Windows Server® 2008 used as a VCB Proxy server VMware Mode

Windows Server® 2003 used as a VCB Proxy server Normal Mode (Default)

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2.1.4 Creating and Allocating LUN Groups (Setting Host Affinity Groups)

Create a LUN group (Host Affinity Group) for the server to access.Define the relationship between the server to be connected to the iSCSI port of the ETERNUSDisk storage system and the created Host Affinity Group. This sets access restrictions to theETERNUS Disk storage system from each server.See "Set Host Affinity" of "ETERNUSmgr User Guide" for details.

2.1.5 Setting CHAP Authentication

The ETERNUS Disk storage system supports the use of CHAP authentication. This sectiondescribes the procedure for setting CHAP authentication in the ETERNUS Disk storage system.This setting can be omitted.

Procedure

1 Click the [Connectivity] tab under the main menu.

2 Select [Host iSCSI Registration] from the [Connectivity] on the left side of the screen.

3 Click the [Register...] button on the right side of the screen.

4 Specify the iSCSI information of the server to be added, User name, and Password on the displayed [Host iSCSI Registration] screen, and click the [Add] button.Specify the User name and Password of the server to be connected within the followingrange.

• If the one-to-one relationship between IP addresses and LAN cardscannot be determined, the Host Affinity Group settings may not beperformed correctly.In this case, try various settings until the server is able to recognize theETERNUS Disk storage system logical disks.

• When the server OS is HP-UX, Windows®, Linux, or VMware ESX,assign Host Affinity Groups starting from LUN0 in ascending order. Theserver cannot recognize the ETERNUS Disk storage system LUNsunless they are assigned in this order. This restriction does not apply when the server is running a Solaris OS.

• When setting a LUN that has the same configuration for multiple iSCSIpaths for recognition, define the same Host Affinity Group.

To set CHAP authentication, set "CHAP authentication" to "ON" in advanceaccording to "2.1.1 Setting the To-server Connection Type (Setting the PortParameters)" (page 11). To set bidirectional CHAP authentication, specify auser name and password for the iSCSI port in advance.

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Chapter 2 ETERNUS Disk Storage System Connection Settings > 2.2 OS Specific Settings

• User nameUp to 255 alphanumeric characters can be used.

• PasswordBetween 12 and 16 alphanumeric characters can be used if a LAN card is used as theserver adapter.Between 12 and 100 alphanumeric characters can be used if an iSCSI HBA is used asthe server adapter.

5 Click the [OK] button.

End of procedure

2.2 OS Specific Settings

Some settings are not required for some OSes and/or connection configurations.Check the various cases described below, and perform any required settings.

2.2.1 Setting the Port Reset Groups

If the system configuration matches any of the items "System configuration that requires the portreset group setting" in the following table, every ETERNUS Disk storage system iSCSI port thatconnects to the given server's access paths must be assigned to the same port reset group.For system configurations other than the following, use the default settings.

*1: For a Windows Server® 2008 or Windows Server® 2008 R2 based WSFC configuration, the portreset group settings are not necessary.

*2: When multiple ESX servers share ETERNUS Disk storage system LUNs, any ETERNUS Disk storagesystem iSCSI port that connects a shared LUN to an ESX server must be assigned to the same portreset group, whether multi-paths are used for the ESX servers or not.

If an iSNS server with the server iSCSI name registered does notexist in the network, the [Refresh] button cannot be used.When the iSNS server does not exist, enter the server iSCSIinformation manually.

If the server iSCSI settings have already been performed, select theserver iSCSI name on the right side of the screen in Step 3, click the[Modify] button, and specify the user name and password on the[Host iSCSI Registration] screen.

Server OS System configuration that requires the port reset group setting

Windows Server® 2003 • MSCS configuration (*1)

VMware vSphere 4 (ESX 4.0)VMware Infrastructure 3 ( ESX 3.5, ESXi 3.5)

• Multipath configurationor

• Multiple ESX servers share ETERNUS Disk storage system LUNs (*2)

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Chapter 2 ETERNUS Disk Storage System Connection Settings > 2.2 OS Specific Settings

Example:When multiple ESX servers share ETERNUS Disk storage system LUNs, CM#0 Port#1and CM#1 Port#1 must be assigned to the same port reset group, even for single-pathconfigurations.

2.2.2 Setting the Sub System Parameters (for HP-UX only)

For HP-UX connection, select the [Disable load balance] checkbox of the "Set Sub SystemParameters" screen. This prevents sense responses that require access retries from beingissued when the ETERNUS Disk storage system is in an overload state.

Server#1 Server#2

LAN switch#1 LAN switch#2

HBA#1 HBA#1

Host Affinity Group

Port#1

For HP-UX server, improper logs may be recorded unless sense responseis restricted. Therefore, select the [Disable load balance] checkbox. (Senseresponse should be restricted.) Note that changing the [Disable loadbalance] setting does not affect on non-HP-UX servers.

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ETERNUS Disk storage systemsServer Connection Guide (iSCSI)

ETERNUS Disk Storage System Settingsfor ETERNUS2000

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Date of issuance: December 2010Issuance responsibility: FUJITSU LIMITED

• The contents of this manual are liable to being updated without notice.• While the contents of this manual are the product of all due care and diligence, no

responsibility can be accepted for operational problems arising from any errors or missing information, or other use of the information contained in this manual.

• Fujitsu assumes no liability for damages to third party copyrights or other rights arising from the use of any information in this manual.

• Contents of this manual are not to be reproduced without permission from Fujitsu.

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