Hitachi Dynamic Link Manager User manual

Hitachi Dynamic Link Manager Software

User's Guide (for Linux(R))

3000-3-F04-60(E)

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 Relevant program products

Hitachi Dynamic Link Manager version 6.6.2

For details about applicable OSs, see the Release Notes.

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 Trademarks

AIX is a trademark of International Business Machines Corporation in the United States, other countries, or both.

AMD, AMD Opteron, and combinations thereof, are trademarks of Advanced Micro Devices, Inc.

Brocade is a trademark or a registered trademark of Brocade Communications Systems, Inc. in the United States and/or in other

countries.

Emulex is a registered trademark of Emulex Corporation.

HP-UX is a product name of Hewlett-Packard Company.

HP StorageWorks is a trademark of Hewlett-Packard Company.

Intel Xeon is a trademark of Intel Corporation in the United States and other countries.

Itanium is a trademark of Intel Corporation in the United States and other countries.

Java is a registered trademark of Oracle and/or its affiliates.

JDK is either a registered trademark or a trademark of Oracle and/or its affiliates.

Linux(R) is the registered trademark of Linus Torvalds in the U.S. and other countries.

Microsoft is either a registered trademark or a trademark of Microsoft Corporation in the United States and/or other countries.

Oracle and Oracle9i are either registered trademarks or trademarks of Oracle and/or its affiliates.

Oracle and Oracle Database 10g are either registered trademarks or trademarks of Oracle and/or its affiliates.

Oracle and Oracle Database 11g are either registered trademarks or trademarks of Oracle and/or its affiliates.

Pentium is a trademark of Intel Corporation in the United States and other countries.

QLogic is a registered trademark of QLogic Corporation.

Red Hat is a trademark or a registered trademark of Red Hat Inc. in the United States and other countries.

Solaris is either a registered trademark or a trademark of Oracle and/or its affiliates.

SteelEye Technology, SteelEye and LifeKeeper are registered trademarks of SteelEye Technology, Inc.

Sun Microsystems is either a registered trademark or a trademark of Oracle and/or its affiliates.

SUSE is a registered trademark of Novell, Inc. in the United States and other countries.

UNIX is a registered trademark of The Open Group in the United States and other countries.

Veritas is a trademark or registered trademark of Symantec Corporation in the U.S. and other countries.

Windows is either a registered trademark or a trademark of Microsoft Corporation in the United States and/or other countries.

Throughout this document Hitachi has attempted to distinguish trademarks from descriptive terms by writing the name with the

capitalization used by the manufacturer, or by writing the name with initial capital letters. Hitachi cannot attest to the accuracy of

this information. Use of a trademark in this document should not be regarded as affecting the validity of the trademark.

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 Restrictions

Information in this document is subject to change without notice and does not represent a commitment on the part of Hitachi. The

software described in this manual is furnished according to a license agreement with Hitachi. The license agreement contains all of

the terms and conditions governing your use of the software and documentation, including all warranty rights, limitations of liability,

and disclaimers of warranty.

Material contained in this document may describe Hitachi products not available or features not available in your country.

No part of this material may be reproduced in any form or by any means without permission in writing from the publisher.

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 Edition history

3000-3-F04-60(E): August 2011

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 Copyright

Summary of Amendments

The following table lists changes in this manual (3000-3-F04-60(E)) and product

changes related to this manual.

In addition to the above changes, minor editorial corrections have been made.

Changes Location in this manual

Systems that use an IP-SAN are now supported. 2.2, 2.2.2, 3.1.1, 3.1.2, 3.1.4, 3.1.5, 3.6.3, 3.6.6, 3.22.1,

3.22.2, 4.6.4, 6.7.2, 7.2.3, 7.10.3, Appendix D

The following messages have been added:

KAPL04053-W, KAPL05712-I,

KAPL10948-W, KAPL10949-E,

KAPL15001-I, KAPL15002-E,

KAPL15064-I, KAPL15065-E

2.12.1, 8.4, 8.5, 8.10, 8.14

Red Hat Enterprise Linux AS 4.9 and Red Hat

Enterprise Linux ES 4.9 are now supported.

3.1.1, 3.1.3

It is now possible to specify the number of times

the same path can be used for I/O operations when

the Round Robin (

rr), Least I/Os (lio), or Least

Blocks (

lbk) algorithm is used for load balancing.

4.3.7, 6.6.1, 6.6.2, 6.7.1, 6.7.2, 7.2.3, 7.10.3

i

Preface

This manual describes the functions and use of the following program products:

• Hitachi Dynamic Link Manager

Intended Readers

This manual is intended for system administrators who use Hitachi Dynamic Link

Manager (HDLM) to operate and manage storage systems. The readers of this manual

must have a basic knowledge of the following areas:

• Linux and its management functionality

• Storage system management functionality

• Cluster software functionality

• Volume management software functionality

Organization of This Manual

This manual is organized as follows:

1. Overview of HDLM

Chapter 1 gives an overview of HDLM, and describes its features.

2. HDLM Functions

Chapter 2 describes management targets and the system configuration of HDLM,

and the basic terms and functions for HDLM.

3. Creating an HDLM Environment

Chapter 3 describes the procedures for building an HDLM environment

(including installing and setting up HDLM), and describes for canceling the

settings.

4. HDLM Operation

Chapter 4 describes how to use HDLM by using both the HDLM commands, and

how to manually start and stop the HDLM manager. This chapter also describes

how to configure an environment to properly operate HDLM, such as changing

the HDLM management-target devices that connect paths or replacing the

hardware that makes up a path.

5. Troubleshooting

Chapter 5 explains how to troubleshoot a path error, HDLM failure, or any other

ii

problems that you might encounter.

6. Command Reference

Chapter 6 describes all the HDLM commands.

7. Utility Reference

Chapter 7 describes the HDLM utilities.

8. Messages

Chapter 8 provides information for all the possible messages that could be output

by HDLM. It also lists and explains the HDLM messages and shows the actions

to be taken in response to each message.

A. Notes on Linux Commands and Files

Appendix A gives notes on Linux commands and files.

B. Troubleshooting Products That Use the Weak-Modules Script

Appendix B explains how to deal with errors that are caused by installing or

uninstalling products that use the weak-modules script.

C. Functional Differences Between Versions of HDLM

Appendix C explains the differences in functionality between HDLM versions.

D. Glossary

This glossary explains terms used in this manual.

Related Publications

Manuals related to this manual are listed below. See these manuals when necessary:

• Hitachi Global Link Manager Software Installation and Configuration Guide

• Hitachi Global Link Manager Software Messages

• Hitachi Adaptable Modular Storage Series User's Guide

• Hitachi Simple Modular Storage Series User's Guide

• Hitachi USP Series User's Guide

• Hitachi Workgroup Modular Storage Series User's Guide

• Thunder9580V Series Disk Array Subsystem User's Guide

• Universal Storage Platform V Series User's Guide

• Universal Storage Platform VM Series User's Guide

• Virtual Storage Platform Series User's Guide

iii

• HITACHI Gigabit Fibre Channel Board User's Guide

• ServerConductor/DeploymentManager User's Guide

Conventions: Abbreviations

This manual uses the following abbreviations for product names.

Abbreviation Full name or meaning

Device Manager Agent Device Manager Agent included in Hitachi Device Manager

Hitachi Global Link Manager Global Link Manager

HDLM Hitachi Dynamic Link Manager

Hitachi AMS A generic term for:

• Hitachi Adaptable Modular Storage 1000

• Hitachi Adaptable Modular Storage 500

• Hitachi Adaptable Modular Storage 200

Hitachi AMS/WMS series A generic term for:

• Hitachi Adaptable Modular Storage 1000

• Hitachi Adaptable Modular Storage 500

• Hitachi Adaptable Modular Storage 200

• Hitachi Workgroup Modular Storage series

Hitachi AMS2000/AMS/WMS/SMS series A generic term for:

• Hitachi Adaptable Modular Storage 2000 series

• Hitachi Adaptable Modular Storage 1000

• Hitachi Adaptable Modular Storage 500

• Hitachi Adaptable Modular Storage 200

• Hitachi Workgroup Modular Storage series

• Hitachi Simple Modular Storage series

Hitachi AMS2000 series Hitachi Adaptable Modular Storage 2000 series

Hitachi NSC55 Hitachi Network Storage Controller NSC55

Hitachi Simple Modular Storage series Hitachi SMS

Hitachi USP A generic term for:

• Hitachi NSC55

• Hitachi Universal Storage Platform 100

• Hitachi Universal Storage Platform 600

• Hitachi Universal Storage Platform 1100

• HP XP10000

• HP XP12000

• SVS

Hitachi WMS Hitachi Workgroup Modular Storage series

iv

HP XP128 HP StorageWorks XP128 Disk Array

HP XP1024 HP StorageWorks XP1024 Disk Array

HP XP10000 HP StorageWorks XP10000 Disk Array

HP XP12000 HP StorageWorks XP12000 Disk Array

HP XP20000 HP StorageWorks XP20000 Disk Array

HP XP24000 HP StorageWorks XP24000 Disk Array

HP XP series A generic term for:

• HP XP128

• HP XP1024

• HP XP10000

• HP XP12000

• HP XP20000

• HP XP24000

HVM Hitachi Virtualization Manager

JDK

TM

Java

TM

2 SDK, Standard Edition

JRE

Java

TM

2 Runtime Environment, Standard Edition

Lightning 9900V series A generic term for:

• Lightning 9900V series

• HP XP128

• HP XP1024

Linux Linux(R)

LUKS Linux Unified Key Setup

Oracle9i RAC Oracle9i Real Application Clusters

Oracle Enterprise Linux 4 A generic term for:

• Oracle Enterprise Linux 4 Update 5

• Oracle Enterprise Linux 4 Update 6

Oracle Enterprise Linux 5 A generic term for:

• Oracle Enterprise Linux 5 Update 1

• Oracle Enterprise Linux 5 Update 4

• Oracle Enterprise Linux 5 Update 5

Oracle RAC 10g Oracle Real Application Clusters 10g

Oracle RAC 11g Oracle Real Application Clusters 11g

Abbreviation Full name or meaning

v

Oracle RAC A generic term for:

• Oracle9i Real Application Clusters

• Oracle Real Application Clusters 10g

• Oracle Real Application Clusters 11g

P9500 HP StorageWorks P9500 Disk Array

Red Hat Enterprise Linux A generic term for:

• Red Hat Enterprise Linux(R) AS4/ES4

• Red Hat Enterprise Linux(R) 5

• Red Hat Enterprise Linux(R) 6

Red Hat Enterprise Linux AS4/ES4 A generic term for:

• Red Hat Enterprise Linux(R) AS 4

• Red Hat Enterprise Linux(R) AS 4.5

• Red Hat Enterprise Linux(R) AS 4.6

• Red Hat Enterprise Linux(R) AS 4.7

• Red Hat Enterprise Linux(R) AS 4.8

• Red Hat Enterprise Linux(R) AS 4.9

• Red Hat Enterprise Linux(R) ES 4

• Red Hat Enterprise Linux(R) ES 4.5

• Red Hat Enterprise Linux(R) ES 4.6

• Red Hat Enterprise Linux(R) ES 4.7

• Red Hat Enterprise Linux(R) ES 4.8

• Red Hat Enterprise Linux(R) ES 4.9

Red Hat Enterprise Linux 5 A generic term for:

• Red Hat Enterprise Linux(R) 5

• Red Hat Enterprise Linux(R) 5 Advanced Platform

• Red Hat Enterprise Linux(R) 5.1

• Red Hat Enterprise Linux(R) 5.1 Advanced Platform

• Red Hat Enterprise Linux(R) 5.2

• Red Hat Enterprise Linux(R) 5.2 Advanced Platform

• Red Hat Enterprise Linux(R) 5.3

• Red Hat Enterprise Linux(R) 5.3 Advanced Platform

• Red Hat Enterprise Linux(R) 5.4

• Red Hat Enterprise Linux(R) 5.4 Advanced Platform

• Red Hat Enterprise Linux(R) 5.5

• Red Hat Enterprise Linux(R) 5.5 Advanced Platform

• Red Hat Enterprise Linux(R) 5.6

• Red Hat Enterprise Linux(R) 5.6 Advanced Platform

Red Hat Enterprise Linux 6 A generic term for:

• Red Hat Enterprise Linux(R) 6

• Red Hat Enterprise Linux(R) 6 Advanced Platform

RHCM Red Hat(R) Cluster Manager

Abbreviation Full name or meaning

vi

Note that if descriptions include the term Red Hat Enterprise Linux or Red Hat

Enterprise Linux AS4/ES4, and there is no specific explanation about Oracle

Enterprise Linux 4, read them as Oracle Enterprise Linux 4 when necessary. Similarly,

note that if descriptions include the term Red Hat Enterprise Linux or Red Hat

Enterprise Linux 5, and there is no specific explanation about Oracle Enterprise Linux

5, read them as Oracle Enterprise Linux 5 when necessary.

This manual also uses the following abbreviations.

SUSE LINUX Enterprise Server A generic term for:

• SUSE LINUX(R) Enterprise Server 9

• SUSE LINUX(R) Enterprise Server 10

• SUSE LINUX(R) Enterprise Server 11

SVS HP StorageWorks 200 Storage Virtualization System

Thunder 9200 Hitachi Freedom Storage Thunder 9200

Universal Storage Platform V/VM A generic term for:

• Hitachi Universal Storage Platform V

• Hitachi Universal Storage Platform VM

• HP XP20000

• HP XP24000

UNIX A generic term for:

• AIX

• Solaris

• Linux

• HP-UX

VCS Veritas Cluster Server

Virtual Storage Platform A generic term for:

• Hitachi Virtual Storage Platform

• HP StorageWorks P9500 Disk Array

VxFS Veritas File System

VxVM Veritas Volume Manager

Abbreviation Full name or meaning

API Application Programming Interface

BIOS Basic Input / Output System

CFQ Complete Fair Queuing

CHA Channel Adapter

Abbreviation Full name or meaning

vii

CLPR Cache Logical Partition

CPU Central Processing Unit

CU Control Unit

DBMS Database Management System

Dev Device

DMI Desktop Management Interface

DNS Domain Name Server

DRBD Distributed Replicated Block Device

ELILO Extensible Firmware Interface Linux Loader

EM64T Extended Memory 64 Technology

EVMS Enterprise Volume Management System

ext Extended File System

FC Fibre Channel

FC-SP Fibre Channel Security Protocol

FO Failover

GMT Greenwich Mean Time

GRUB GRand Unified Bootloader

GUI Graphical User Interface

HBA Host Bus Adapter

HDev Host Device

HLU Host Logical Unit

HTTP Hypertext Transfer Protocol

I/O Input/Output

IA32 Intel Architecture 32

IDE Integrated Drive Electronics

IP Internet Protocol

IPC Inter Process Communication

Abbreviation Full name or meaning

viii

IPF Itanium(R) Processor Family

IRQ Interrupt ReQuest

iSCSI Internet Small Computer System Interface

KVM Kernel-based Virtual Machine

LAN Local Area Network

LDAP Lightweight Directory Access Protocol

LDEV Logical Device

LILO Linux Loader

LU Logical Unit

LUN Logical Unit Number

LVM Logical Volume Manager

md Multiple Devices

NAS Network Attached Storage

NIC Network Interface Card

NTP Network Time Protocol

OS Operating System

PPort

PCI Peripheral Component Interconnect

RADIUS Remote Authentication Dial in User Service

SAN Storage Area Network

SCSI Small Computer System Interface

SLPR Storage Logical Partition

SMTP Simple Mail Transfer Protocol

SNMP Simple Network Management Protocol

SP Service Pack

SSL Secure Sockets Layer

SVP Service Processor

Abbreviation Full name or meaning

ix

Conventions: Diagrams

This manual uses the following conventions in diagrams:

Conventions: Fonts and Symbols

Font and symbol conventions are classified as:

• General font conventions

• Conventions in syntax explanations

These conventions are described below.

General Font Conventions

The following table lists the general font conventions:

UUID Universally Unique Identifier

VG Volume Group

WWN World Wide Name

Abbreviation Full name or meaning

x

Code examples and messages appear as follows (though there may be some

exceptions, such as when the code is part of a diagram):

MakeDatabase

...

StoreDatabase temp DB32

In examples of coding, an ellipsis (...) indicates that one or more lines of coding are not

shown for purposes of brevity.

Conventions in Syntax Explanations

Syntax definitions appear as follows:

StoreDatabase [temp|perm] (database-name ...)

The following table lists the conventions used in syntax explanations:

Font Convention

Bold Bold type indicates text on a window, other than the window title. Such text includes menus,

menu options, buttons, radio box options, or explanatory labels. For example, bold is used in

sentences such as the following:

• From the File menu, choose Open.

• Click the Cancel button.

• In the Enter name entry box, type your name.

Italics Italics are used to indicate a placeholder for some actual text provided by the user or system.

Italics are also used for emphasis. For example:

• Write the command as follows:

copy source-file target-file

• Do not delete the configuration file.

Code font A code font indicates text that the user enters without change, or text (such as messages) output

by the system. For example:

• At the prompt, enter

dir.

• Use the

send command to send mail.

• The following message is displayed:

The password is incorrect.

Example font or symbol Convention

StoreDatabase Code-font characters must be entered exactly as shown.

database-name This font style marks a placeholder that indicates where appropriate characters are

to be entered in an actual command.

SD Bold code-font characters indicate the abbreviation for a command.

perm Underlined characters indicate the default value.

xi

Conventions: KB, MB, GB, and TB

This manual uses the following conventions:

• 1 KB (kilobyte) is 1,024 bytes.

• 1 MB (megabyte) is 1,024

2

bytes.

• 1 GB (gigabyte) is 1,024

3

bytes.

• 1 TB (terabyte) is 1,024

4

bytes.

[ ] Square brackets enclose an item or set of items whose specification is optional. An

item that is underlined is specified when all items are omitted.

{ } One of the options enclosed in { } must be specified.

| Only one of the options separated by a vertical bar can be specified at the same

time.

... An ellipsis (...) indicates that the item or items enclosed in ( ) or [ ] immediately

preceding the ellipsis may be specified as many times as necessary.

() Parentheses indicate the range of items to which the vertical bar (|) or ellipsis (...)

is applicable.

# A prompt on a command-execution window when the OS is UNIX

Example font or symbol Convention

xiii

Contents

Preface i

Intended Readers ........................................................................................................i

Organization of This Manual .....................................................................................i

Related Publications..................................................................................................ii

Conventions: Abbreviations.................................................................................... iii

Conventions: Diagrams ............................................................................................ix

Conventions: Fonts and Symbols.............................................................................ix

Conventions: KB, MB, GB, and TB ........................................................................xi

1. Overview of HDLM 1

1.1 What is HDLM? .........................................................................................................2

1.2 HDLM Features..........................................................................................................4

2. HDLM Functions 5

2.1 Devices Managed by HDLM......................................................................................6

2.2 System Configuration.................................................................................................7

2.2.1 System Configuration Using an FC-SAN .......................................................7

2.2.2 System Configuration Using an IP-SAN ........................................................9

2.3 LU Configuration .....................................................................................................12

2.4 Program Configuration.............................................................................................14

2.5 Position of the HDLM Driver and HDLM Device...................................................16

2.6 Logical Device Files for HDLM Devices.................................................................17

2.7 Distributing a Load Using Load Balancing..............................................................19

2.7.1 Paths To Which Load Balancing Is Applied .................................................21

2.7.2 Load Balancing Algorithms ..........................................................................23

2.8 Performing Failovers and Failbacks Using Path Switching .....................................25

2.8.1 Automatic Path Switching.............................................................................25

2.8.2 Manual Path Switching .................................................................................28

2.8.3 Path Status Transition....................................................................................29

2.9 Monitoring Intermittent Errors (Functionality When Automatic Failback Is Used) 32

2.9.1 Checking Intermittent Errors.........................................................................32

2.9.2 Setting Up Intermittent Error Monitoring .....................................................32

2.9.3 Intermittent Error Monitoring Actions..........................................................33

2.9.4 When a User Changes the Intermittent Error Information...........................35

2.10 Detecting Errors by Using Path Health Checking..................................................38

2.11 Error Management..................................................................................................39

2.11.1 Types of Collected Logs..............................................................................41

2.11.2 Filtering of Error Information .....................................................................42

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2.11.3 Collecting Error Information Using the Utility for Collecting HDLM Error

Information (DLMgetras)............................................................................. 43

2.11.4 Utility for Collecting HDLM Installation Error Information

(installgetras)................................................................................................ 43

2.12 Collecting Audit Log Data..................................................................................... 44

2.12.1 Categories and Audit Events that HDLM Can Output to the Audit Log ... 45

2.12.2 Requirements for Outputting Audit Log Data............................................ 49

2.12.3 Destination and Filtering of Audit Log Data.............................................. 50

2.12.4 Audit Log Data Formats............................................................................. 51

2.13 Integrated HDLM management using Global Link Manager................................ 54

2.14 Cluster Support ...................................................................................................... 56

3. Creating an HDLM Environment 57

3.1 HDLM System Requirements.................................................................................. 58

3.1.1 Hosts and OSs Supported by HDLM ........................................................... 58

3.1.2 Storage Systems Supported by HDLM......................................................... 71

3.1.3 Related Products When Using Red Hat Enterprise Linux AS4/ES4............ 72

3.1.4 Related Products When Using Red Hat Enterprise Linux 5......................... 96

3.1.5 Related Products When Using Red Hat Enterprise Linux 6....................... 109

3.1.6 Related Products When Using SUSE LINUX Enterprise Server 9.............110

3.1.7 Related Products When Using SUSE LINUX Enterprise Server 10...........111

3.1.8 Related Products When Using SUSE LINUX Enterprise Server 11 ...........118

3.1.9 Related Products When Using Oracle Enterprise Linux 4 ......................... 120

3.1.10 Related Products When Using Oracle Enterprise Linux 5 ....................... 121

3.1.11 Memory and Disk Capacity Requirements............................................... 124

3.1.12 Number of Paths Supported in HDLM..................................................... 127

3.1.13 Virtual Environments Supported by HDLM ............................................ 127

3.2 Flow for Creating an HDLM Environment ........................................................... 129

3.3 HDLM Installation Types ...................................................................................... 131

3.4 Knowledge Required Before You Install HDLM .................................................. 132

3.5 Notes on Creating an HDLM Environment........................................................... 133

3.5.1 Notes on Hardware Settings ....................................................................... 133

3.5.2 Notes on Linux ........................................................................................... 134

3.5.3 Notes on Installing HDLM ......................................................................... 135

3.5.4 Notes on an Upgrade Installation or Re-installation of HDLM ................. 137

3.5.5 Notes on a Device Manager Agent............................................................. 137

3.6 Installing HDLM................................................................................................... 139

3.6.1 Preparations for a New Installation of HDLM ........................................... 139

3.6.2 Performing a New Installation of HDLM................................................... 144

3.6.3 Preparations for an Upgrade Installation or Re-installation of HDLM...... 151

3.6.4 Performing a Re-installation of HDLM...................................................... 152

3.6.5 Performing an Upgrade Installation of HDLM .......................................... 159

3.6.6 Unattended Installation of HDLM.............................................................. 165

3.7 Installing HDLM for Managing Boot Disks.......................................................... 172

xv

3.7.1 Notes on Installing HDLM in a Boot Disk Environment............................172

3.7.2 Overview of the Procedure for Installing HDLM in a Boot Disk

Environment................................................................................................175

3.7.3 Settings for Using an HDLM Device as a Boot Disk .................................177

3.7.4 Upgrade Installation in an Environment Where an HDLM Device Is Used as

a Boot Disk .................................................................................................188

3.7.5 Settings for Using a Logical Volume (LVM2) on an HDLM Device as a Boot

Disk .............................................................................................................197

3.7.6 Upgrade Installation in an Environment Where a Logical Volume (LVM2) on

an HDLM Device Is Used as a Boot Disk ..................................................209

3.7.7 Countermeasures for Unsuccessful Startup of the OS from an HDLM

Device .........................................................................................................226

3.8 Settings for LUKS ..................................................................................................229

3.8.1 Notes on Using LUKS.................................................................................229

3.8.2 Using HDLM in an LUKS Environment ....................................................229

3.9 Settings for md Devices..........................................................................................232

3.9.1 Notes on Setting Up md Devices ................................................................232

3.9.2 Creating an md Device................................................................................233

3.9.3 Using HDLM in an md Device Environment .............................................237

3.10 Settings for LVM2 ................................................................................................246

3.10.1 Notes on Using LVM2 ..............................................................................246

3.10.2 When Using an HDLM Device to Create a New Logical Volume ...........246

3.10.3 When Moving a Logical Volume Created on a SCSI Device in a Single-Path

Environment to an HDLM Device..............................................................253

3.11 Settings for Xen ....................................................................................................258

3.12 Settings for KVM .................................................................................................260

3.13 Settings for Heartbeat ...........................................................................................262

3.14 Settings for Oracle RAC.......................................................................................263

3.15 Settings for the RHCM .........................................................................................266

3.15.1 Notes on Using RHCM .............................................................................266

3.15.2 When Using Red Hat Enterprise Linux AS4/ES4.....................................266

3.15.3 When Using Red Hat Enterprise Linux 5, or Red Hat Enterprise Linux

6...................................................................................................................267

3.16 Settings for VCS...................................................................................................268

3.17 Checking the Path Configuration .........................................................................269

3.18 Setting Up HDLM ................................................................................................271

3.18.1 Checking the Current Settings...................................................................271

3.18.2 Setting Up the HDLM Functions ..............................................................271

3.18.3 Checking the Updated Settings .................................................................280

3.19 The Process-specific-trace Information File.........................................................281

3.19.1 Notes on Using the Hitachi Network Objectplaza Trace Library .............281

3.20 Creating a Character-Type Device File for an HDLM Device.............................282

3.20.1 When Using Red Hat Enterprise Linux 5 or Red Hat Enterprise Linux 6 282

xvi

3.20.2 When Using Red Hat Enterprise Linux AS4/ES4 or SUSE LINUX Enterprise

Server ......................................................................................................... 282

3.21 Creating File Systems for HDLM (When Volume Management Software Is Not

Used)..................................................................................................................... 284

3.21.1 Mounting a File System............................................................................ 284

3.21.2 Creating a File System.............................................................................. 284

3.22 Settings for Automatic Mounting ........................................................................ 286

3.22.1 Setting the HDLM Device for the First Time........................................... 286

3.22.2 Migrating from an Environment Where a SCSI Device Is Already Set... 287

3.23 Canceling the Settings for HDLM ....................................................................... 290

3.23.1 Operations on HDLM-Managed Devices................................................. 290

3.23.2 Canceling the Heartbeat Settings.............................................................. 292

3.23.3 Canceling the Settings for Oracle RAC.................................................... 292

3.23.4 Canceling the Settings for RHCM............................................................ 293

3.23.5 Canceling the Settings for VCS................................................................ 295

3.23.6 Canceling the Xen Settings....................................................................... 295

3.23.7 Canceling the KVM Settings.................................................................... 297

3.23.8 Canceling the Settings for LVM2 ............................................................. 298

3.23.9 Canceling the md Device Settings............................................................ 302

3.23.10 Canceling the LUKS Settings................................................................. 310

3.23.11 Uninstalling HDLM.................................................................................311

3.23.12 Uninstalling Hitachi Network Objectplaza Trace Library (HNTRLib2) 326

4. HDLM Operation 329

4.1 Notes on Using HDLM.......................................................................................... 330

4.1.1 Notes Common to OSs ............................................................................... 330

4.1.2 Notes When Using Red Hat Enterprise Linux AS4/ES4, or Oracle Enterprise

Linux 4 ....................................................................................................... 332

4.1.3 Notes When Using Red Hat Enterprise Linux 5, Red Hat Enterprise Linux 6,

or Oracle Enterprise Linux 5...................................................................... 333

4.1.4 Notes When Using SUSE LINUX Enterprise Server 9.............................. 334

4.1.5 Notes When Using SUSE LINUX Enterprise Server 10............................ 335

4.1.6 Notes When Using SUSE LINUX Enterprise Server 11............................ 336

4.2 Updating Kernel Packages and Applying OS Update Packages ........................... 339

4.2.1 Environment Where an HDLM Device Is not Used as the Boot Disk....... 339

4.2.2 Environment Where an HDLM Device Is Used as the Boot Disk ............. 339

4.2.3 Environment Where a Logical Volume (LVM2) on an HDLM Device Is Used

as the Boot Disk ......................................................................................... 340

4.3 HDLM Operations Using Commands ................................................................... 341

4.3.1 Notes on Using Commands ........................................................................ 341

4.3.2 Viewing Path Information .......................................................................... 341

4.3.3 Changing the Status of Paths ...................................................................... 341

4.3.4 Viewing LU Information ............................................................................ 343

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