software.fujitsu.comsoftware.fujitsu.com/jp/manual/manualfiles/m150005/j2uz7243/05en… · Preface This manual describes the setting up and managing of GDS (Global Disk Services)

J2UZ-7243-05ENZ0(02)May 2015

Linux

FUJITSU SoftwarePRIMECLUSTER Global Disk Services

Configuration and AdministrationGuide 4.3

PrefaceThis manual describes the setting up and managing of GDS (Global Disk Services) and GDS Snapshot, an optional product of GDS,discussing the supported functions.

Purpose

This manual aims to help users understand GDS and GDS Snapshot, including environment configuration, operation and maintenance.

Target Reader

This manual is devoted to all users who will operate and manage GDS and GDS Snapshot and programmers who will create applicationsrunning in GDS environments.

Organization

This manual consists as follows:

Headers Contents

Chapter 1Functions

Explains the features and function overview of GDS and GDS Snapshot.

Chapter 2Structure

Explains the concepts and rules of objects used by GDS and GDS Snapshot.

Chapter 3Notes on Design

Explains notes when designing the system where GDS and GDS Snapshot areused.

Chapter 4Installation

Explains how to install GDS and GDS Snapshot.

Chapter 5GDS Management View

Explains how to start and exit GDS Management View and its screenconfiguration and functions.

Chapter 6Settings

Explains how to set up GDS and GDS Snapshot.

Chapter 7Operation and Maintenance

Explains how to operate and maintain GDS and GDS Snapshot.

Chapter 8Configuration Change

Explains how to change the configuration of GDS and GDS Snapshot.

Chapter 9Removing Configuration

Explains how to remove the configuration of GDS and GDS Snapshot.

Appendix AGeneral Notes

Explains general notes for using GDS and GDS Snapshot.

Appendix BCommand Reference

Explains the commands available in GDS and GDS Snapshot, and thePRIMECLUSTER commands used for registering and deleting the shared diskresources.

Appendix CGDS Messages

Explains the contents, possible causes, and resolutions for GDS messages thatappear when setting or operating GDS and GDS Snapshot.

Appendix DTroubleshooting

Explains resolutions for abnormality of objects and physical disks managed byGDS.

Appendix EFrequently AskedQuestions (FAQ)

Lists frequently asked questions regarding GDS and GDS Snapshot.

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Headers Contents

Appendix FRelease Information

Explains new features, manual update details, and changes in specificationsdepending on the versions of GDS and GDS Snapshot.

Glossary Explains GDS and GDS Snapshot terminology. Please refer to it as necessary.

Related documentation

Please refer to the following documents according to need.

- PRIMECLUSTER Concepts Guide

- PRIMECLUSTER Installation and Administration Guide

- PRIMECLUSTER Cluster Foundation (CF) Configuration and Administration Guide

- PRIMECLUSTER Reliant Monitor Services (RMS) with Wizard Tools Configuration and Administration Guide

- PRIMECLUSTER Web-Based Admin View Operation Guide

- PRIMECLUSTER Global File Services Configuration and Administration Guide

- Software Release Guide PRIMECLUSTER(TM) GDS

- PRIMECLUSTER GDS Installation Guide

- Software Release Guide PRIMECLUSTER(TM) GDS Snapshot

- INSTALLATION GUIDE PRIMECLUSTER(TM) GDS Snapshot

- PRIMEQUEST Virtual Machine Function User's Manual

Manual Printing

Use the PDF file to print this manual.

Adobe Reader is required to read and print this PDF file. To get Adobe Reader, see Adobe Systems Incorporated's website.

Symbol

The following conventions are used in this manual:

- [1 TB] indicates that the description is for environments (include the case that the configuration parameter SDX_EFI_DISK=on isnot set) which support 1 TB or larger disks.

- [4.3A00] indicates that the description is for GDS 4.3A00.

- [4.3A10 or later] indicates that the description is for GDS 4.3A10 or later.

- [4.3A10/4.3A20] indicates that the description is for GDS 4.3A10 and GDS 4.3A20.

- [4.3A10 - 4.3A30] indicates that the description is for GDS 4.3A10 to GDS 4.3A30.

- [4.3A20 or earlier] indicates that the description is for GDS 4.3A20 or earlier.



- [EFI] indicates that the description is for the EFI boot environment or UEFI boot environment.

- [Itanium] indicates that the description is for the Itanium Processor Family (IPF) server as a platform.

- [Linux2.4] indicates that the description is for Linux kernel version 2.4.

- [Linux2.6] indicates that the description is for Linux kernel version 2.6.

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- [RHEL6] indicates that the description is for RHEL6.

- [RHEL6 or later] indicates that the description is for RHEL6 or later.

- [RHEL7] indicates that the description is for RHEL7.

Point

Main points are explained.

Note

Items that require attention are explained.

Information

Useful information is given.

See

Manual names and sections of this manual you should refer to are given.

Abbreviated name

- Device Mapper Multipath is abbreviated as DM-MP.

- ETERNUS SF AdvancedCopy Manager is abbreviated as ACM.

- Itanium Processor Family is abbreviated as IPF.

- PRIMEQUEST 2000/1000 Series and PRIMEQUEST 500A/500/400 Series are abbreviated as PRIMEQUEST.

- Red Hat Enterprise Linux is abbreviated as RHEL.

- Red Hat Enterprise Linux AS is abbreviated as RHEL-AS.

- Red Hat Enterprise Linux ES is abbreviated as RHEL-ES.

Export Controls

Exportation/release of this document may require necessary procedures in accordance with the regulations of your resident countryand/or US export control laws.

Trademarks

Microsoft, Windows, and Internet Explorer are registered trademarks or trademarks of Microsoft Corporation in the United States andother countries.

Linux is a registered trademark of Linus Torvalds.

Red Hat is a registered trademark of Red Hat, Inc. in the U.S. and other countries.

Oracle and Java are registered trademarks of Oracle and/or its affiliates. Other names may be trademarks of their respective owners.

EMC, PowerPath, SRDF, Symmetrix, and TimeFinder are registered trademarks of EMC Corporation.

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SAN Manager is a trademark of EMC Corporation.

PRIMECLUSTER is a registered trademark of Fujitsu LIMITED.

Other product names that appear in this manual are product names, trademarks, or registered trademarks of respective companies.

Notice

- No part of this manual may be reproduced without permission.

- This manual is subject to change without advance notice.

Date of publication and edition

October 2014, Fifth edition

March 2015, 5.1 editionMay 2015, 5.2 edition

All Rights Reserved, Copyright (C) FUJITSU LIMITED 2011-2015

Revision History

Revision Location Edition

Updated the patch numbers. 3.2.1 Required Patches 5.2

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ContentsChapter 1 Functions................................................................................................................................................................. 1

1.1 GDS Features.......................................................................................................................................................................................11.2 Functions for High Availability...........................................................................................................................................................2

1.2.1 Disk Mirroring.............................................................................................................................................................................. 31.2.1.1 System Disk Mirroring [EFI].................................................................................................................................................31.2.1.2 Mirroring between Disk Array Unit...................................................................................................................................... 41.2.1.3 Shared Disk Mirroring........................................................................................................................................................... 51.2.1.4 Mirroring among Servers [4.3A40 or later] [RHEL6]...........................................................................................................6

1.2.2 Hot Spare...................................................................................................................................................................................... 61.2.3 Hot Swap.......................................................................................................................................................................................71.2.4 Just Resynchronization Mechanism (JRM).................................................................................................................................. 8

1.3 Functions for High Manageability.......................................................................................................................................................91.3.1 Operation Management Interface............................................................................................................................................... 101.3.2 Centralized Disk Management....................................................................................................................................................101.3.3 Name Management..................................................................................................................................................................... 111.3.4 Single System Image Environment.............................................................................................................................................121.3.5 Access Control............................................................................................................................................................................13

1.3.5.1 Class Scope.......................................................................................................................................................................... 131.3.5.2 Starting and Stopping Volume.............................................................................................................................................131.3.5.3 Access Mode........................................................................................................................................................................141.3.5.4 Lock Volume....................................................................................................................................................................... 14

1.3.6 Realizing Large Capacity and I/O Load Balancing.................................................................................................................... 151.3.6.1 Logical Partitioning............................................................................................................................................................. 151.3.6.2 Disk Concatenation..............................................................................................................................................................151.3.6.3 Disk Striping........................................................................................................................................................................ 161.3.6.4 Combining Disk Striping with Mirroring............................................................................................................................ 17

1.3.7 Online Volume Expansion..........................................................................................................................................................171.3.8 Snapshots by Slice Detachment..................................................................................................................................................19

1.4 GDS Snapshot Features..................................................................................................................................................................... 211.5 Proxy Volume.................................................................................................................................................................................... 21

1.5.1 Snapshot by Synchronization......................................................................................................................................................231.5.2 Snapshot Function with No Load to Server/SAN.......................................................................................................................271.5.3 Instant Snapshot by OPC............................................................................................................................................................ 281.5.4 Instant Restore............................................................................................................................................................................ 291.5.5 Online Disk Migration................................................................................................................................................................ 311.5.6 Creating Alternative Boot Environment [EFI]........................................................................................................................... 32

1.6 Shadow Volume.................................................................................................................................................................................331.6.1 Accessing Volumes from External Server..................................................................................................................................331.6.2 Using Copy Function of Disk Unit............................................................................................................................................. 34

Chapter 2 Structure................................................................................................................................................................ 362.1 SDX Object........................................................................................................................................................................................36

2.1.1 Disk Class................................................................................................................................................................................... 362.1.2 SDX Disk....................................................................................................................................................................................392.1.3 Disk Group..................................................................................................................................................................................422.1.4 Logical Volume.......................................................................................................................................................................... 452.1.5 Logical Slice............................................................................................................................................................................... 50

2.2 GDS Snapshot Objects.......................................................................................................................................................................542.2.1 Proxy Object............................................................................................................................................................................... 542.2.2 Shadow Object............................................................................................................................................................................58

2.2.2.1 Shadow Class.......................................................................................................................................................................592.2.2.2 Shadow Disk........................................................................................................................................................................ 612.2.2.3 Shadow Group..................................................................................................................................................................... 642.2.2.4 Shadow Volume...................................................................................................................................................................652.2.2.5 Shadow Slice........................................................................................................................................................................71

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2.3 Rules.................................................................................................................................................................................................. 712.3.1 Object Name............................................................................................................................................................................... 712.3.2 Number of Classes...................................................................................................................................................................... 722.3.3 Number of Disks.........................................................................................................................................................................732.3.4 Number of Groups...................................................................................................................................................................... 732.3.5 Number of Volumes....................................................................................................................................................................732.3.6 Number of Keep Disks [EFI]......................................................................................................................................................742.3.7 Creating Group Hierarchy.......................................................................................................................................................... 742.3.8 Disk Label...................................................................................................................................................................................752.3.9 Disk Size..................................................................................................................................................................................... 772.3.10 Volume Size..............................................................................................................................................................................782.3.11 Proxy Configuration Preconditions.......................................................................................................................................... 782.3.12 Number of Proxy Volumes....................................................................................................................................................... 792.3.13 Proxy Volume Size................................................................................................................................................................... 792.3.14 Proxy Group Size......................................................................................................................................................................79

Chapter 3 Notes on Design.................................................................................................................................................... 813.1 Guidelines.......................................................................................................................................................................................... 81

3.1.1 Guidelines for Mirroring.............................................................................................................................................................813.1.2 Guidelines for Striping................................................................................................................................................................813.1.3 Guidelines for Concatenation..................................................................................................................................................... 823.1.4 Guidelines for Combining Striping with Mirroring....................................................................................................................82

3.2 DM-MP (Device Mapper Multipath) ................................................................................................................................................823.2.1 Required Patches.........................................................................................................................................................................823.2.2 GDS Snapshot [4.3A20 or earlier]..............................................................................................................................................843.2.3 virtio Block Device on KVM......................................................................................................................................................84

3.3 EMC Symmetrix................................................................................................................................................................................ 843.4 Managing System Disks.................................................................................................................................................................... 843.5 System Disk Mirroring Preconditions............................................................................................................................................... 853.6 Initializing Disk................................................................................................................................................................................. 863.7 Keep Disk [EFI] ................................................................................................................................................................................863.8 Hot Spare........................................................................................................................................................................................... 86

3.8.1 Number of Disks within Class.................................................................................................................................................... 863.8.2 Hot Spare for Hierarchized Mirror Groups.................................................................................................................................883.8.3 Number of Spare Disks...............................................................................................................................................................893.8.4 Spare Disk Size...........................................................................................................................................................................893.8.5 Hot Spare for the Root Class...................................................................................................................................................... 893.8.6 Hot Spare for Proxy Volumes.....................................................................................................................................................893.8.7 Shadow Classes...........................................................................................................................................................................893.8.8 Disk Array Unit's Hot Spare Function........................................................................................................................................893.8.9 Spare Disk Failure...................................................................................................................................................................... 893.8.10 Synchronization Copying Invoked by Hot Spare..................................................................................................................... 903.8.11 Required Time for Synchronization Copying Invoked by Hot Spare...................................................................................... 903.8.12 Hot Spare Mode (Spare Disk Selection Mode)........................................................................................................................ 903.8.13 Spare Disk Manual Connection................................................................................................................................................ 92

3.9 Mirroring among Servers [4.3A40 or later] [RHEL6].......................................................................................................................933.9.1 Network Configuration............................................................................................................................................................... 933.9.2 Disk Area.................................................................................................................................................................................... 933.9.3 Object Configuration.................................................................................................................................................................. 933.9.4 Operation Mode of the Cluster System.......................................................................................................................................943.9.5 Data Amount and Data Update Amount.....................................................................................................................................943.9.6 Note.............................................................................................................................................................................................94

3.10 Volume Access Mode......................................................................................................................................................................953.11 Data Consistency at the time of Simultaneous Access.................................................................................................................... 953.12 Online Volume Expansion...............................................................................................................................................................953.13 Disk Switch......................................................................................................................................................................................963.14 Creating Snapshot by Slice Detachment..........................................................................................................................................96

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3.15 Online Backup and Restoration Using Proxy Volume.................................................................................................................... 963.16 Difference between Mirror Slice and Proxy Volume...................................................................................................................... 983.17 Ensuring Consistency of Snapshot Data..........................................................................................................................................993.18 Instant Snapshot by OPC................................................................................................................................................................. 993.19 Using EMC TimeFinder or EMC SRDF in Proxy Configuration................................................................................................. 1003.20 Backing Up and Restoring through External Server..................................................................................................................... 1013.21 Usage in the Virtual Environment................................................................................................................................................. 1033.22 Disaster Recovery.......................................................................................................................................................................... 106

3.22.1 Building Disaster Recovery System....................................................................................................................................... 1073.22.2 Switching to Disaster Recovery System.................................................................................................................................1073.22.3 Restoration to Operation System from Disaster Recovery System........................................................................................ 107

Chapter 4 Installation............................................................................................................................................................1094.1 Notes on Installing OS.....................................................................................................................................................................1094.2 Installing GDS................................................................................................................................................................................. 1094.3 Installing GDS Snapshot..................................................................................................................................................................1094.4 Setting Up DM-MP..........................................................................................................................................................................1094.5 kdump Settings [RHEL6 or later]....................................................................................................................................................1094.6 Disk Setting for Performing Mirroring among Servers [4.3A40 or later] [RHEL6].......................................................................110

4.6.1 Checking and Setting Required Packages................................................................................................................................ 1104.6.2 Creating iSCSI Target...............................................................................................................................................................1114.6.3 Establishing iSCSI Session.......................................................................................................................................................1134.6.4 Confirming iSCSI Device Name.............................................................................................................................................. 1164.6.5 Setting Tuning Parameters........................................................................................................................................................117

4.7 Configuring Xen Environment........................................................................................................................................................ 1174.8 Configuring KVM Environment [4.3A10 or later]..........................................................................................................................1174.9 Configuring VMware Environment.................................................................................................................................................1204.10 Preparation for Starting GDS Management View......................................................................................................................... 120

4.10.1 Deciding the User Group........................................................................................................................................................ 1204.10.1.1 User Group Types............................................................................................................................................................1204.10.1.2 Creating User Groups...................................................................................................................................................... 1204.10.1.3 Registering to a User Group............................................................................................................................................ 121

4.10.2 Setting up the Client Environment..........................................................................................................................................1214.10.3 Setting up the Web Environment............................................................................................................................................121

4.11 Settings to Use EMC Symmetrix [4.3A10 or later].......................................................................................................................121

Chapter 5 GDS Management View...................................................................................................................................... 1235.1 Starting GDS Management View.................................................................................................................................................... 123

5.1.1 Starting Web-Based Admin View Operation Menu................................................................................................................. 1235.1.2 Web-Based Admin View Operation Menu Functions..............................................................................................................1245.1.3 Starting GDS Management View............................................................................................................................................. 125

5.2 Screen Configuration....................................................................................................................................................................... 1255.3 Menu Configuration and Functions................................................................................................................................................. 128

5.3.1 [General] Menu.........................................................................................................................................................................1295.3.2 [Settings] Menu.........................................................................................................................................................................1305.3.3 [Operation] Menu..................................................................................................................................................................... 1365.3.4 [View] Menu.............................................................................................................................................................................1395.3.5 [Help] Menu..............................................................................................................................................................................139

5.4 Icon Types and Object Status.......................................................................................................................................................... 1395.5 Object Information...........................................................................................................................................................................1435.6 Operation......................................................................................................................................................................................... 1445.7 Exiting GDS Management View..................................................................................................................................................... 147

Chapter 6 Settings................................................................................................................................................................1486.1 Creating Excluded Device List........................................................................................................................................................ 148

6.1.1 Excluded Device List................................................................................................................................................................1486.1.2 To Use DM-MP (Device Mapper Multipath)........................................................................................................................... 1486.1.3 To Use EMC Symmetrix.......................................................................................................................................................... 148

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6.1.4 To Use Mirroring among Servers [4.3A40 or later] [RHEL6] ................................................................................................ 1506.2 Using iSCSI Disk [RHEL6 or later]................................................................................................................................................ 150

6.2.1 Settings and Applying Patches [4.3A30]..................................................................................................................................1506.2.2 Tuning Parameters.................................................................................................................................................................... 151

6.3 Shared Disk Resource Registration................................................................................................................................................. 1516.3.1 What Is Shared Disk Resource Registration?........................................................................................................................... 1516.3.2 Flow of Shared Disk Resource Registration.............................................................................................................................1526.3.3 Preconditions and Important Points..........................................................................................................................................1526.3.4 Shared Disk Unit Resource Registration Procedure................................................................................................................. 153

6.4 Updating Physical Disk Information............................................................................................................................................... 1566.5 System Disk Mirroring Settings [EFI].............................................................................................................................................156

6.5.1 Checking Partition Configuration of System Disk................................................................................................................... 1566.5.2 Applying Patches for Adapting to Changes of SCSI Host ID [4.3A00]...................................................................................1576.5.3 Setting System Disk Mirroring................................................................................................................................................. 158

6.5.3.1 Setting with GDS Management View............................................................................................................................... 1586.5.3.1.1 Operation Flow........................................................................................................................................................... 1586.5.3.1.2 Operation Procedure................................................................................................................................................... 158

6.5.3.2 Setting with Commands.....................................................................................................................................................1646.5.4 Checking System Disk Settings................................................................................................................................................1656.5.5 Checking Physical Disk Information and Slice Numbers........................................................................................................ 1686.5.6 Collecting Backups of System Disk......................................................................................................................................... 1716.5.7 Backing up EFI Configuration Information..............................................................................................................................172

6.6 Class, Group, Volume Settings........................................................................................................................................................1726.6.1 Setting with GDS Management View...................................................................................................................................... 172

6.6.1.1 Single Volume Configuration Settings.............................................................................................................................. 1726.6.1.2 Other Volume Configuration Settings............................................................................................................................... 1736.6.1.3 Class Configuration........................................................................................................................................................... 1736.6.1.4 Cluster System Class Configuration.................................................................................................................................. 1776.6.1.5 Group Configuration..........................................................................................................................................................1796.6.1.6 Volume Configuration....................................................................................................................................................... 181

6.6.2 Setting with Commands............................................................................................................................................................1856.6.2.1 Creating Single Volume.....................................................................................................................................................1856.6.2.2 Creating Mirror Volume.................................................................................................................................................... 1856.6.2.3 Creating Netmirror Volume [4.3A40 or later] [RHEL6]...................................................................................................1866.6.2.4 Creating Large-Capacity Volume Using Concatenation................................................................................................... 1876.6.2.5 Creating Stripe Volume..................................................................................................................................................... 1876.6.2.6 Creating Mirror Volume by Combining Striping and Mirroring.......................................................................................188

6.7 File System Configuration............................................................................................................................................................... 1896.7.1 Setting with GDS Management View [4.3A20 or earlier]....................................................................................................... 1896.7.2 Setting with Commands............................................................................................................................................................1926.7.3 File System Auto Mount...........................................................................................................................................................1926.7.4 In Cluster Systems.................................................................................................................................................................... 193

6.8 raw Device Binding......................................................................................................................................................................... 1936.9 Volume's Block Special File Access Permission.............................................................................................................................1946.10 NFS Mount.................................................................................................................................................................................... 1966.11 Proxy Configuration...................................................................................................................................................................... 198

6.11.1 Setting with GDS Management View.................................................................................................................................... 1996.11.1.1 Join...................................................................................................................................................................................1996.11.1.2 Relate............................................................................................................................................................................... 203

6.11.2 Setting with Commands..........................................................................................................................................................2056.11.2.1 Join...................................................................................................................................................................................2056.11.2.2 Relate............................................................................................................................................................................... 205

6.12 Cloning...........................................................................................................................................................................................2066.12.1 Summary.................................................................................................................................................................................2066.12.2 Preconditions.......................................................................................................................................................................... 2076.12.3 Preparation.............................................................................................................................................................................. 2076.12.4 Copying Disk Data..................................................................................................................................................................207

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6.12.5 Setting up Copy Destination System...................................................................................................................................... 207

Chapter 7 Operation and Maintenance................................................................................................................................ 2107.1 Viewing Configurations/Statuses and Monitoring Statuses............................................................................................................ 210

7.1.1 Confirming SDX Object Configuration....................................................................................................................................2107.1.2 Viewing Proxy Object Configurations..................................................................................................................................... 2167.1.3 Monitoring Object Status..........................................................................................................................................................2207.1.4 Viewing Object Statuses...........................................................................................................................................................222

7.2 Synchronization Copy Operation of Mirror Volume.......................................................................................................................2227.2.1 Using GDS Management View................................................................................................................................................ 2227.2.2 Using Commands......................................................................................................................................................................226

7.3 Disk Swap........................................................................................................................................................................................ 2267.3.1 Setting with GDS Management View...................................................................................................................................... 226

7.3.1.1 Operation Flow.................................................................................................................................................................. 2267.3.1.2 Operation Procedure.......................................................................................................................................................... 227

7.3.2 Using Commands......................................................................................................................................................................2317.3.3 Swapping Disks of Netmirror Group........................................................................................................................................2317.3.4 Swapping Physical Disks Registered with Shadow Classes.....................................................................................................2327.3.5 Notes......................................................................................................................................................................................... 233

7.3.5.1 Physical Disk Size............................................................................................................................................................. 2337.3.5.2 Physical Disks That Cannot Be Swapped..........................................................................................................................2337.3.5.3 LinuxSwapping Physical Disks when the Proxy Volume Is in a Mirroring Configuration.............................................. 2337.3.5.4 In VMware environment....................................................................................................................................................2337.3.5.5 Swapping Internal Disks Registered with Root Classes or Local Classes [RHEL6 or later]............................................234

7.4 Backing Up and Restoring System Disk [EFI]................................................................................................................................2347.4.1 Backing Up............................................................................................................................................................................... 2357.4.2 Restoring (When System Can Be Booted)............................................................................................................................... 2387.4.3 Restoring (When System Cannot Be Booted).......................................................................................................................... 241

7.5 Backing Up and Restoring System Disk through Alternative Boot Environment [EFI].................................................................2447.5.1 System Configuration............................................................................................................................................................... 2447.5.2 Summary of Backup................................................................................................................................................................. 2467.5.3 Summary of Restore................................................................................................................................................................. 2477.5.4 Summary of Procedure............................................................................................................................................................. 2487.5.5 Configuring Environment......................................................................................................................................................... 2487.5.6 Backing Up............................................................................................................................................................................... 2517.5.7 Restoring...................................................................................................................................................................................254

7.6 Backup (Offline).............................................................................................................................................................................. 2597.7 Backup (by Slice Detachment)........................................................................................................................................................ 260

7.7.1 Using GDS Management View................................................................................................................................................ 2617.7.1.1 Operation Flow.................................................................................................................................................................. 2617.7.1.2 Operation Procedure.......................................................................................................................................................... 261

7.7.2 Using Commands......................................................................................................................................................................2677.8 Backup (by Synchronization).......................................................................................................................................................... 268


7.8.2 Using Commands......................................................................................................................................................................2767.9 Backup (by OPC).............................................................................................................................................................................279


7.9.2 Using Commands......................................................................................................................................................................2837.10 Restoring........................................................................................................................................................................................286

7.10.1 Using GDS Management View.............................................................................................................................................. 2867.10.1.1 Operation Flow................................................................................................................................................................ 2867.10.1.2 Operation Procedure........................................................................................................................................................ 287

7.10.2 Using Commands....................................................................................................................................................................291

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7.10.2.1 Without Using GDS Snapshot......................................................................................................................................... 2917.10.2.2 Using GDS Snapshot....................................................................................................................................................... 292

7.11 Backing Up and Restoring through Disk Unit's Copy Functions.................................................................................................. 2957.11.1 Configuring Environment....................................................................................................................................................... 2957.11.2 Backing Up............................................................................................................................................................................. 2967.11.3 Restoring from Backup Disks.................................................................................................................................................300

7.12 Backing Up and Restoring through External Server..................................................................................................................... 3017.12.1 Backing Up and Restoring Logical Volume with No Replication......................................................................................... 301

7.12.1.1 System Configuration...................................................................................................................................................... 3027.12.1.2 Summary of Backup........................................................................................................................................................ 3027.12.1.3 Summary of Restore........................................................................................................................................................ 3037.12.1.4 Summary of Procedure.................................................................................................................................................... 3057.12.1.5 Configuring Environment................................................................................................................................................ 3057.12.1.6 Backing Up...................................................................................................................................................................... 3067.12.1.7 Restoring..........................................................................................................................................................................310

7.12.2 Backing Up and Restoring through Snapshot by Slice Detachment...................................................................................... 3157.12.2.1 System Configuration...................................................................................................................................................... 3157.12.2.2 Summary of Backup........................................................................................................................................................ 3167.12.2.3 Summary of Restore........................................................................................................................................................ 3177.12.2.4 Summary of Procedure.................................................................................................................................................... 3197.12.2.5 Configuring Environment................................................................................................................................................ 3207.12.2.6 Backing Up...................................................................................................................................................................... 3217.12.2.7 Restoring..........................................................................................................................................................................325

7.12.3 Backing Up and Restoring Using Snapshots from Proxy Volume.........................................................................................3307.12.3.1 System Configuration...................................................................................................................................................... 3317.12.3.2 Summary of Backup........................................................................................................................................................ 3317.12.3.3 Summary of Restore from Proxy Volume....................................................................................................................... 3337.12.3.4 Summary of Restore from Tape.......................................................................................................................................3337.12.3.5 Summary of Procedure.................................................................................................................................................... 3357.12.3.6 Configuring Environment................................................................................................................................................ 3367.12.3.7 Backing Up...................................................................................................................................................................... 3377.12.3.8 Restoring from Proxy Volume.........................................................................................................................................3407.12.3.9 Restoring from Tape........................................................................................................................................................ 342

7.12.4 Backing Up and Restoring by Disk Unit's Copy Function..................................................................................................... 3457.12.4.1 System Configuration...................................................................................................................................................... 3467.12.4.2 Summary of Backup........................................................................................................................................................ 3477.12.4.3 Summary of Restore from BCV...................................................................................................................................... 3497.12.4.4 Summary of Restore from Tape.......................................................................................................................................3507.12.4.5 Summary of Procedure.................................................................................................................................................... 3527.12.4.6 Configuring Environment................................................................................................................................................ 3537.12.4.7 Backing Up...................................................................................................................................................................... 3547.12.4.8 Restoring form BCV........................................................................................................................................................3597.12.4.9 Restoring from Tape........................................................................................................................................................ 361

7.13 Backing Up and Restoring Object Configurations........................................................................................................................ 3667.13.1 Backing Up............................................................................................................................................................................. 3667.13.2 Restoring.................................................................................................................................................................................367

7.14 Volume Expansion.........................................................................................................................................................................3687.14.1 Volume Expansion of Local or Shared Class......................................................................................................................... 3687.14.2 Volume Expansion Using Commands [EFI].......................................................................................................................... 368

7.15 Mirroring Among Servers [4.3A40 or later] [RHEL6]..................................................................................................................3757.15.1 I/O Error Due to Node Stop or Network Error ...................................................................................................................... 3757.15.2 Lock Volume of the Netmirror Volume................................................................................................................................. 3757.15.3 Operation on Only One Node................................................................................................................................................. 3757.15.4 Restoration to 2-node Operation after Operation on Only One Node.................................................................................... 3757.15.5 Restoration when the Latest Disk Cannot Be Selected Automatically...................................................................................3767.15.6 Restarting the Node during Synchronization Copying .......................................................................................................... 3787.15.7 Stopping RMS.........................................................................................................................................................................378

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7.16 Removing Errata Kernel [RHEL7]................................................................................................................................................ 378

Chapter 8 Configuration Change..........................................................................................................................................3808.1 Changing Web-Based Admin View Settings...................................................................................................................................3808.2 Changing Object Configuration.......................................................................................................................................................380

8.2.1 Using GDS Management View................................................................................................................................................ 3808.2.1.1 Operation Flow.................................................................................................................................................................. 3808.2.1.2 Class Configuration........................................................................................................................................................... 3818.2.1.3 Group Configuration..........................................................................................................................................................3858.2.1.4 Volume Configuration....................................................................................................................................................... 388

8.2.2 Using Commands......................................................................................................................................................................3898.3 Adding and Removing Disks [4.3A00]........................................................................................................................................... 3908.4 Hot Adding Disk [RHEL6 or later]................................................................................................................................................. 3908.5 Migration from Single Nodes to Cluster System.............................................................................................................................3918.6 Server Migration.............................................................................................................................................................................. 3918.7 Storage Migration............................................................................................................................................................................ 393

8.7.1 Using GDS Snapshot Online Disk Migration...........................................................................................................................3938.7.1.1 Using GDS Management View......................................................................................................................................... 394

8.7.1.1.1 Operation Flow........................................................................................................................................................... 3948.7.1.1.2 Operation Procedure................................................................................................................................................... 395

8.7.1.2 Using Commands...............................................................................................................................................................3978.7.2 Using Copy Function of Storage Units and sdxconfig Command............................................................................................398

Chapter 9 Removing Configuration...................................................................................................................................... 4019.1 Breaking Proxy................................................................................................................................................................................ 401

9.1.1 Using GDS Management View................................................................................................................................................ 4019.1.2 Using Commands......................................................................................................................................................................402

9.2 Removing File System.....................................................................................................................................................................4029.2.1 Using GDS Management View [4.3A20 or earlier]................................................................................................................. 4029.2.2 Using Commands......................................................................................................................................................................403

9.3 Removing Volumes, Groups, and Classes.......................................................................................................................................4049.3.1 Using GDS Management View................................................................................................................................................ 404

9.3.1.1 Operation Flow.................................................................................................................................................................. 4049.3.1.2 Removing Volume.............................................................................................................................................................4049.3.1.3 Removing Group................................................................................................................................................................4069.3.1.4 Removing Class................................................................................................................................................................. 407

9.3.2 Using Commands......................................................................................................................................................................4089.4 System Disk Mirroring Cancellation [EFI]..................................................................................................................................... 409

9.4.1 Unmirroring System Disk with GDS Management View........................................................................................................ 4099.4.1.1 Unmirroring the System Disk [EFI].................................................................................................................................. 4099.4.1.2 Operation Flow.................................................................................................................................................................. 409

9.4.2 Cancellation with Commands...................................................................................................................................................4129.5 OS Re-installation............................................................................................................................................................................413

Appendix A General Notes...................................................................................................................................................416A.1 Restraining Access to Physical Special File................................................................................................................................... 416A.2 Booting from a CD-ROM Device...................................................................................................................................................416A.3 Operation in Cluster System........................................................................................................................................................... 417A.4 Just Resynchronization Mechanism (JRM).................................................................................................................................... 417A.5 Backing Up and Restoring Object Configuration (sdxconfig)....................................................................................................... 419A.6 Physical Disk Recognition..............................................................................................................................................................419A.7 Object Operation When Using Proxy............................................................................................................................................. 419A.8 Using Advanced Copy Function in Proxy Configuration...............................................................................................................420A.9 Shadow Volume..............................................................................................................................................................................422A.10 Changing system run level ...........................................................................................................................................................424A.11 Root Class Operation [EFI].......................................................................................................................................................... 425A.12 Operating When There Is Disk in DISABLE Status or There Is Class not Displayed with sdxinfo Command.......................... 425A.13 Notes on Mirroring among Servers [4.3A40 or later] [RHEL6].................................................................................................. 426

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Appendix B Command Reference........................................................................................................................................427B.1 GDS Commands..............................................................................................................................................................................427

B.1.1 sdxclass - Class Operations......................................................................................................................................................427B.1.2 sdxdisk - Disk Operations........................................................................................................................................................ 428B.1.3 sdxgroup - Group Operations...................................................................................................................................................437B.1.4 sdxvolume - Volume Operations............................................................................................................................................. 441B.1.5 sdxslice - Slice Operations....................................................................................................................................................... 446B.1.6 sdxinfo - Display Object Configuration and Status Information............................................................................................. 449B.1.7 sdxattr - Change Objects Attributes......................................................................................................................................... 465B.1.8 sdxswap - Swap Disk............................................................................................................................................................... 471B.1.9 sdxfix - Restore Failed Object..................................................................................................................................................473B.1.10 sdxcopy - Synchronization Copying Operation..................................................................................................................... 476B.1.11 sdxroot - Root File System Mirroring Definition and Cancellation [EFI].............................................................................477B.1.12 sdxparam - Configuration Parameter Operations...................................................................................................................481B.1.13 sdxconfig - Object Configuration Operations........................................................................................................................ 482B.1.14 sdxdevinfo - Display Device Information..............................................................................................................................487

B.2 GDS Snapshot Commands..............................................................................................................................................................488B.2.1 sdxproxy - Proxy Object Operations........................................................................................................................................488B.2.2 sdxshadowdisk - Shadow Disk Operations.............................................................................................................................. 498B.2.3 sdxshadowgroup - Shadow Group Operations.........................................................................................................................503B.2.4 sdxshadowvolume - Shadow Volume Operations................................................................................................................... 507

B.3 Command Reference.......................................................................................................................................................................509B.3.1 clautoconfig(8)-Execute resource registration......................................................................................................................... 510B.3.2 cldelrsc(8)-Delete resource...................................................................................................................................................... 510

Appendix C GDS Messages.................................................................................................................................................513C.1 Web-Based Admin View Messages (0001-0099)...........................................................................................................................513C.2 Driver Messages..............................................................................................................................................................................513

C.2.1 Panic Message (20001)............................................................................................................................................................ 514C.2.2 Warning Messages (22000-22099).......................................................................................................................................... 514C.2.3 Information Messages (24000-24099)..................................................................................................................................... 520C.2.4 Internal Error Messages (26000)..............................................................................................................................................523

C.3 Daemon Messages...........................................................................................................................................................................523C.3.1 Halt Messages (40000-40099)................................................................................................................................................. 525C.3.2 Error Messages (42000-42099)................................................................................................................................................526C.3.3 Warning Messages (44000-44099).......................................................................................................................................... 542C.3.4 Information Messages (46000-46199)..................................................................................................................................... 552C.3.5 Internal Error Messages (48000)..............................................................................................................................................573

C.4 Command Messages........................................................................................................................................................................574C.4.1 Error Messages (60000-60499)................................................................................................................................................576C.4.2 Warning Messages (62000-62099).......................................................................................................................................... 663C.4.3 Information Messages (64000-64099)..................................................................................................................................... 668C.4.4 Fix Messages (66000).............................................................................................................................................................. 683C.4.5 Internal Error Messages (68000)..............................................................................................................................................683

C.5 Operation Management View Messages.........................................................................................................................................684C.5.1 Error Messages (5000-5099)....................................................................................................................................................684C.5.2 Warning Messages (5000,5100-5199)..................................................................................................................................... 689C.5.3 Information Messages (5200-5299)......................................................................................................................................... 699

Appendix D Troubleshooting................................................................................................................................................ 709D.1 Resolving Problems........................................................................................................................................................................ 709

D.1.1 Slice Status Abnormality......................................................................................................................................................... 709D.1.2 Disk Status Abnormality..........................................................................................................................................................717D.1.3 Volume Status Abnormality.................................................................................................................................................... 719D.1.4 Class Status Abnormality.........................................................................................................................................................735D.1.5 System Disk Abnormality [EFI].............................................................................................................................................. 738D.1.6 Errors in the Mirroring Among Servers...................................................................................................................................765D.1.7 GDS Management View Abnormality.....................................................................................................................................769

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D.1.8 Proxy Object Abnormality................................................................

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software.fujitsu.comsoftware.fujitsu.com/jp/manual/manualfiles/m150005/j2uz7243/05en… · Preface This manual describes the setting up and managing of GDS (Global Disk Services)