Fujitsu ETERNUS Instruction Manual

ETERNUS Disk storage systems Server Connection Guide (iSCSI) for Linux

P3AM-4152-02ENZ0

Preface

This document briefly explains the operations that need to be performed by the user in order to

connect an ETERNUS2000 model 100 or 200, ETERNUS4000 model 300, 400, 500, or 600, or

ETERNUS8000 model 700, 800, 900, 1100, 1200, 2100, or 2200 Disk storage system to a

server running SUSE Linux Enterprise Server via an iSCSI interface.

This document should be used in conjunction with any other applicable user manuals, such as

those for the ETERNUS2000 model 100 or 200, ETERNUS4000 model 300, 400, 500, or 600, or

ETERNUS8000 model 700, 800, 900, 1100, 1200, 2100, or 2200 Disk storage system, server,

OS used, adapters, drivers, etc.

This document references the following documents:

•Server Support Matrix

•ETERNUS Disk storage systems Server Connection Guide (iSCSI) ETERNUS Disk Storage

System Settings for ETERNUS ETERNUS2000

•ETERNUS Disk storage systems Server Connection Guide (iSCSI) ETERNUS Disk Storage

System Settings for ETERNUS4000, ETERNUS8000

•ETERNUSmgr Install Guide

•ETERNUSmgr User Guide

Also, note that in this document the ETERNUS2000 models 100 and 200, ETERNUS4000 mod-

els 300, 400, 500, and 600, and ETERNUS8000 models 700, 800, 900, 1100, 1200, 2100, and

2200 Disk storage systems are collectively referred to as ETERNUS Disk storage systems.

Second Edition

December 2010

The Contents and Structure of this Manual

This document is composed of the following nine chapters.

•Chapter 1 Workflow

This describes how to connect the ETERNUS Disk storage systems to a server running

Linux.

•Chapter 2 Checking the Server Environment

This describes which servers can be connected to ETERNUS Disk storage systems.

•Chapter 3 LAN Switch Connection

This describes how to connect the ETERNUS Disk storage system to the server via a LAN

switch.

Preface

ETERNUS Disk storage systems Server Connection Guide (iSCSI) for Linux

P3AM-4152-02ENZ0

•Chapter 4 Notes

This describes issues that should be noted when connecting the ETERNUS Disk storage

systems and server.

•Chapter 5 Setting Up the Linux Server

This describes how to install and set up the Linux server.

•Chapter 6 Installing and Setting Up ETERNUSmgr

This describes how to install ETERNUSmgr.

•Chapter 7 Setting Up the ETERNUS Disk Storage Systems

This describes how to set up the ETERNUS Disk storage systems using ETERNUSmgr.

•Chapter 8 ETERNUS Disk Storage System Logical Unit Recognition

This describes how to recognize the ETERNUS Disk storage system LUNs from server.

•Chapter 9 Setting Up and Checking the device-mapper multipath

This describes how to set up and check the device-mapper multipath.

Safe Use of this Product

■Using this manual

This manual contains important information to ensure the safe use of this product. Be sure to

thoroughly read and understand its contents before using the product. After reading, store this

manual in a safe place for future reference.

FUJITSU has made every effort to ensure the safety of the users and other personnel, and to

prevent property damage. When using this product, carefully follow the instructions described in

this manual.

Acknowledgments

•Linux is a trademark or registered trademark of Linus Torvalds in the USA and other

countries.

•SUSE is a registered trademark of SUSE Linux AG., a subsidiary of Novell, Inc.

•The company names, product names and service names mentioned in this document are

registered trademarks or trademarks of their respective companies.

Preface

ETERNUS Disk storage systems Server Connection Guide (iSCSI) for Linux

P3AM-4152-02ENZ0

Naming Conventions

■Product Names

•"SLES" refers to SUSE Linux Enterprise Server.

•"SLES11" refers to the following products:

-SUSE Linux Enterprise Server 11

•"SLES10" refers to the following products:

-SUSE Linux Enterprise Server 10

■Other names

•"iSCSI port" or "Channel Adapter" (CA) 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. A "Network

Interface Card" (NIC), "LAN adapter", or "LAN board" may be used instead, depending on the

server.

ETERNUS Disk storage systems Server Connection Guide (iSCSI) for Linux

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Contents

Chapter 1 Workflow ...................................................................................8

Chapter 2 Checking the Server Environment........................................10

2.1 Hardware .......................................................................................................... 10

2.2 Basic Software ................................................................................................. 10

2.3 LAN Cards ........................................................................................................ 10

2.4 Multipath Driver ................................................................................................ 10

Chapter 3 LAN Switch Connection.........................................................11

Chapter 4 Notes .......................................................................................12

4.1 LAN Environment Notes ................................................................................... 12

4.2 Server Startup and Power Supply Control Notes ............................................. 12

4.3 SLES Notes ...................................................................................................... 12

Chapter 5 Setting Up the Linux Server ..................................................13

5.1 Preparation ....................................................................................................... 13

5.1.1 Installing the "open-iscsi" package ............................................................................................ 13

5.1.2 Preparing the device-mapper multipath setup ........................................................................... 13

5.2 Setting Up Automatic iSCSI Service ................................................................ 14

5.3 Setting Up the Network Environment ............................................................... 14

5.4 Checking the iSCSI Initiator Name ................................................................... 14

Chapter 6 Installing and Setting Up ETERNUSmgr ..............................15

Chapter 7 Setting Up the ETERNUS Disk Storage Systems................16

Chapter 8 ETERNUS Disk Storage System Logical Unit

Recognition.............................................................................17

8.1 When CHAP Authentication is not Used .......................................................... 17

8.2 When Unidirectional CHAP Authentication is Used ......................................... 18

8.3 When Bidirectional CHAP Authentication is Used ........................................... 19

8.4 Rebooting the Linux Server .............................................................................. 20

8.5 Recognizing LUNs ........................................................................................... 20

Chapter 9 Setting Up and Checking the device-mapper multipath.....21

9.1 Editing "/etc/multipath.conf" .............................................................................. 21

Contents

ETERNUS Disk storage systems Server Connection Guide (iSCSI) for Linux

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9.2 Enabling the device-mapper multipath ............................................................. 22

9.3 Rebooting the Linux Server .............................................................................. 22

9.4 Recognizing the Post device-mapper multipath LUNs ..................................... 23

9.5 Checking the device-mapper multipath Status ................................................. 23

ETERNUS Disk storage systems Server Connection Guide (iSCSI) for Linux

P3AM-4152-02ENZ0

Chapter 1 Workflow

Which documents need to be referred to varies with the connection environment. Refer to the

workflow that follows to determine which documents are required.

Required Documents

•ETERNUS Disk storage systems Server Connection Guide (iSCSI) for Linux (SUSE Linux

Enterprise Server) (This manual)

•Server Support Matrix

•ETERNUS Disk storage systems Server Connection Guide (iSCSI) ETERNUS Disk Storage

System Settings for ETERNUS2000

•ETERNUS Disk storage systems Server Connection Guide (iSCSI) ETERNUS Disk Storage

System Settings for ETERNUS4000, ETERNUS8000

•ETERNUSmgr Install Guide

•ETERNUSmgr User Guide

•Other manuals provided with each product (server, Multipath Driver, and LAN card)

Workflow

Set Up the Linux Server

Set up the OS, hardware, software, and iSCSI environment.

Refer

-"Chapter 5 Setting Up the Linux Server" (page 13)

Chapter 1 Workflow

ETERNUS Disk storage systems Server Connection Guide (iSCSI) for Linux

P3AM-4152-02ENZ0

Install ETERNUSmgr and Set Up the ETERNUS Disk Storage System

If ETERNUSmgr is to be used, install it and set up the ETERNUS Disk storage system.

Refer

-"Chapter 6 Installing and Setting Up ETERNUSmgr" (page 15)

-"Chapter 7 Setting Up the ETERNUS Disk Storage Systems" (page 16)

-Installing ETERNUSmgr

•"ETERNUSmgr Install Guide"

-Checking the setup and maintenance operations

•"ETERNUSmgr User Guide"

-Setting up the ETERNUS Disk storage system

•"ETERNUS Disk storage systems Server Connection Guide (iSCSI) ETERNUS

Disk Storage System Settings for ETERNUS2000"

•"ETERNUS Disk storage systems Server Connection Guide (iSCSI) ETERNUS

Disk Storage System Settings for ETERNUS4000, ETERNUS8000"

Set the Server to Recognize the Logical Units

Set up the server so that it can recognize the ETERNUS Disk storage systems' LUN

(logical units).

Refer

-"Chapter 8 ETERNUS Disk Storage System Logical Unit Recognition" (page 17)

Set Up and Check the device-mapper multipaths

If device-mapper multipathing is used, set up and check the device-mapper multipaths.

Refer

-"Chapter 9 Setting Up and Checking the device-mapper multipath" (page 21)

ETERNUS Disk storage systems Server Connection Guide (iSCSI) for Linux

P3AM-4152-02ENZ0

Chapter 2 Checking the Server Environment

Refer to the "Server Support Matrix" to check the server environment.

2.1 Hardware

Refer to the "Server Support Matrix".

2.2 Basic Software

Refer to the "Server Support Matrix".

2.3 LAN Cards

Refer to the "Server Support Matrix".

2.4 Multipath Driver

Refer to the "Server Support Matrix".

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