Recovering a Single Cluster Node | HP Legato Networker specification

Chapter 11: Legato AAM for AIX, HP-UX, and Linux Disaster Recovery

This chapter explains how to recover one or more computers in an Automated Availability Manager (AAM) for an AIX, HP-UX, or Linux environment.

This chapter includes the following sections:

•“Recovering a Single Cluster Node”

•“Performing a Cluster-Wide Recovery” on page 159

•“Renaming the Resource Directory” on page 164

Recovering a Single Cluster Node

This section describes how to recover a failed node within a cluster. This scenario assumes that the operating system on the participating nodes is intact and will not be recovered. The functionality of the AAM component on the node is in question.

How to Recover a Single Cluster Node

To recover a single node:

1.Install the NetWorker software. For detailed installation and configuration instructions, refer to the appropriate Legato NetWorker Installation Guide.

2.Start the NetWorker client.

3.Using the cluster’s virtual NetWorker server running on an unaffected node, restore the node's data and software from a recent backup. For detailed instructions, refer to the Legato NetWorker Administrator’s Guide, UNIX Version.

Legato NetWorker, Release 7.0	157
Disaster Recovery Guide

Image 157

HP Legato Networker manual Legato AAM for AIX, HP-UX, and Linux Disaster Recovery, Recovering a Single Cluster Node

Contents

Legato NetWorker Red Hat / Red Hat, Inc Definitions Legato Systems, Inc. End-User License Agreement Limited Warranty Contents Prerequisites Disaster Recovery of Clustered Computers Windows Disaster Recovery NetWare Disaster Recovery 111 Microsoft Cluster Disaster Recovery Windows NT 116 127 HP TruCluster Disaster Recovery 139 Sun Cluster Disaster Recovery 135 Legato AAM for AIX, HP-UX, and Linux Disaster Recovery HP-UX Cluster Disaster Recovery153 157 169 Contents Legato NetWorker, Release Disaster Recovery Guide Audience PrefaceProduct Documentation Boldface ConventionsImportant Use the noverify option with General Information Information and ServicesTechnical Support Licensing and Registration Customer FeedbackHttp//license.legato.com What Is a Disaster? on Disaster Recovery Guide Overview on What Is a Disaster?Introduction Disaster Recovery Guide Overview Preparing for Disaster Preparing for a DisasterPreparing for Disaster on Gathering the Key Information on Hardware Information Gathering the Key Information Software Information Platform Recovery/Repair Prerequisite Information Unix Disaster Recovery Installing and Configuring the Unix Disaster Recovery ProceduresRecovering a NetWorker Storage Node Administrator’s Guide Prerequisites Replacing a Hard DriveReplacing the Hard Drive Completing the Recovery Process Installing and Configuring the Unix Operating System Unix Boot Etc/default/boot Stand/vmunix How to Install and Configure the Unix Operating System Task 2 Configure the Operating System Task 1 Install the Operating System Task 3 Configure the Devices and Test the Operating System How to Recover a NetWorker Server Recovering a NetWorker ServerHow to Recover a NetWorker Server on Prerequisites on Task 1 Install the NetWorker Server Software Task 3 Locate the Server’s Bootstrap Save Set ID Task 2 Configure NetWorker Device Resources# nsrshutdown -a # nsrexecd # nsrd Solaris Nsrjb -lnv -S slot -f devicename whereScanner -B /dev/rmt/0hbnLinux Scanner -B /dev/nst0 Refer to the Legato Command Reference Guide Task 4 Recover the NetWorker Server BootstrapMmrecov Mv res res.orig Task 5 Rename the NetWorker Server Configuration FilesMv res.R res Nsrexecd Nsr/res.orig directory Task 6 Recover All Client File IndexesNsrmm -d mars.1 Task 8 Perform a Test Backup and Recovery Task 7 Recover the Application and User Data How to Recover a NetWorker Storage Node Recovering a NetWorker Storage NodeHow to Recover a NetWorker Storage Node on Configuring the Unix Operating System on Task 2 Recover the Application and User Data Task 1 Install the NetWorker Storage Node# mminfo -avot-cstoragenodename Task 3 Perform a Test Backup and Recovery How to Recover a NetWorker Client Recovering a NetWorker ClientTask 1 Install NetWorker Client Prerequisites on How to Recover a NetWorker Client on # mminfo -avot -c clientname Task 3 Perform a Test Backup and Recovery Page Windows Disaster Recovery NetWorker Server Recovery Summary Procedure Disaster Recovery Summary Procedures NetWorkerinstallpath\res directory NetWorker Client or Storage Node Recovery Summary Procedure Client or Storage Node Recovery on Disaster Recovery of Multiple Computers Disaster Recovery of Clustered Computers OEM Recovery CD Limitations Performing Windows ASR Recovery ASR Recovery Requirements Task 2 Restore Components that Require Special Handling Task 3 Verify the NetWorker Client Recovery Repairing Windows NT Repairing a Windows NT 4.0 Operating System InstallationCreating an ERD from the Repairdisk Save Set How to Use the NetWorker recover Command to Create an ERD How to Use the NetWorker User Program to Create an ERDAdministrator’s Guide, Microsoft Windows Version Recover add Repairdisk Recover relocate a\ How to Use the ERD to Repair the Windows NT 4.0 Installation Recovery Requirements Recovering a Windows InstallationNot functional, see Recovering a Windows Installation on How to Recover the Windows Operating System Task 1 Install the Windows Operating System Kingdome.seattle.washington.com WindowsWindows NT Windows .NET and Windows XP Professional Task 2 Configure the Devices and Test the Operating System For a NetWorker server, see Recovering a NetWorker Server on NetWorker Server Recovery Requirements How to Recover a Windows 2000 NetWorker Server Task 2 Configure the NetWorker Server Storage\Removable Storage\Physical Locations Bootstrap on Task 3 Locate the NetWorker Server Bootstrap Save Set IDNetWorkerinstallpath\logs\savegrp.log file Nsrjb -lnv -S # -f devicename NetWorkerinstallpath\bin directoryScanner -B devicename Nsrjb -lnv -S # -f devicename where Nsrmm -dvolumename Task 6 Reset and Inventory the Autochanger Task 5 Rename the Resource Configuration FilesHow to Reset and Inventory an Autochanger with Removable Storage Disabled Nsrjb Nsrjb -Iv -S Task 7 Recover the NetWorker Server’s Client File Indexes Nsrck -L7 Nsrmm -d volumenameNsrck -L7 clientname Task 8 Recover the NetWorker Server Data Files\Legato\nsr you must unmark the index, mm, res, and bin Settings NetWorker Server Recovery on Task 9 Restore the Removable Storage Jukebox Configuration Rename the NetWorkerinstallpath\res.R directory to Task 10 Verify the NetWorker Server Recovery Partial Recovery of a NetWorker Storage Node Recovering a NetWorker Client or Storage NodeTask 3 Recover the NetWorker Client or Storage Node Data on NetWorker Administrator’s Guide, Microsoft Windows Version Windows Disaster Recovery Task 3 Recover the NetWorker Client or Storage Node Data Windows NT 4.0 %SystemRoot%\profiles Windows .NET, Windows XP Professional, and Windows Task 4 Verify the NetWorker Client or Storage Node Recovery Recovery of Dhcp and Wins Databases How to Recover a Wins Database How to Recover a Dhcp Database NetWare Disaster Recovery Replace the Hard Drive Obtain the Hard Drive Information NetWorker Administrator’s Guide, NetWare Version Recovering the NetWare Operating System Task 1 Install the Operating System on How to Recover the NetWare Operating SystemTask 3 Test the Operating System and Configure Devices on Task 2 Configure the Operating System Task 3 Test the Operating System and Configure Devices Recovering a NetWare NetWorker ServerLegato NetWorker Administrator’s Guide, NetWare Version How to Recover a NetWare NetWorker Server on How to Recover a NetWare NetWorker Server Task 2 Configure NetWorker Device and Client Resource Task 1 Install the NetWorker Software Load Netutil SYSNSR\NSR.RES Cn=Admin.O= ‘top level container’ into the User attribute Task 6 Recover the NetWorker Server Data Task 7 Restore NDS Data Task 8 Complete the Server Recovery How to Recover a NetWare 4.10 SYS Volume Recovering a Replicated NDS PartitionTask 1 Recover the NetWare 4.10 SYS Volume Task 1 Recover the NetWare 4.10 SYS Volume on 103 MAC.NAM, LONG.NAM, etc Task 2 Restore the SMS Remote File System Load TSA410 Load Tsands Load TSA500 Task 3 Complete the Recovery of the NetWare 4.10 SYS Volume DSMISC.LOG Task 1 Recover the NetWare SYS Volume Task 2 Install the Operating Systems Edit the STARTUP.NCF and AUTOEXEC.NCF files Task 3 Complete the NetWare SYS Volume Recovery 109 110 Recovering One Node in a Cluster Microsoft Cluster Disaster Recovery Windows NT Task 1 Evict NodeB from the Cluster Task 2 Reinstall Windows NT 4.0 and Mscs on NodeB Task 3 Reinstall the NetWorker Software Recovering a Cluster Shared DiskTask 4 Recover the Data on NodeB Task 1 Take the Dependent Resources Offline Task 2 Replace the Hard Drive Task 4 Configure the Cluster to Include the Shared Disk Task 3 Recover the Data to the Shared Disk About the Quorum Resource Replacing the Quorum Disk and Recovering Its Data How to Replace the Quorum Disk and Recover Its Data Recovering the Mscs Cluster ConfigurationTask 1 Recover the System State and Quorum Data on Task 1 Recover the System State and Quorum Data Task 4 Install the Cluster Software and Patches on NodeB Performing a Cluster-Wide Recovery\RECOVER\MSCS to Task 3 Evict NodeB from the Cluster Task 1 On NodeA, Install and Configure the Software Task 3 Install and Configure NetWorker Task 2 On NodeB, Install and Configure the SoftwareGuide, Microsoft Windows Version Task 5 Check and Reassign the Drive Assignments Task 4 Perform a Disaster Recovery For details, refer to Windows Disaster Recovery on Task 6 Recover the DataTask 7 Check the Disk Signatures Task 8 Join NodeB to the Cluster Q280353, How to Change Quorum Disk Designation 125 126 Prerequisites Microsoft Cluster Disaster Recovery Windows 2000 and .NET127 How to Recover a Failed Quorum Disk Recovering a Failed Quorum DiskRemoveMe Diskx How to Recover One Cluster Node Recovering One Cluster Node129 Windows .NET Cluster node NodeB /forcecleanupNet stop clussvc 130 131 How to Recover Multiple Cluster Nodes Recovering Multiple Cluster Nodes132 133 134 Restoring a Single Cluster Node Sun Cluster Disaster Recovery How to Restore an Entire Cluster How to Restore a Single Cluster NodeRestoring an Entire Cluster Task 1 Replace the Damaged Hardware Task 2 Install the Software Task 3 Recover the Data Record Information HP TruCluster Disaster RecoveryRecord Information on Back Up the Cluster on Hwmgr -view hierarchy command Hwmgr -view commandHwmgr -view devices command Restoring One or More Nodes in a Cluster Task 3 Partition the Down Node’s Boot Drive How to Restore One or More Nodes in a ClusterTask 4 Update the Cluster Configuration Task 2 Verify Hardware Mappings # boot -file genvmunix dkc2 Task 5 Recover the Node-Specific Data# recover -cclusterdefaultalias # cludeletemember -m member# Recover delete dvrdevtab # hwmgr -view hierarchy Task 3 Install and Configure the Cluster Software# hwmgr -view devices Task 4 Install the NetWorker Software Task 6 Locate the Server’s Bootstrap Save Set ID Task 5 Configure NetWorker Device and Autochanger ResourcesAdministrator’s Guide, Unix Version # nsrjb -lnv -S slot -f device-name Task 7 Recover the Server’s Bootstrap# scanner -B devicename # mmrecov Task 8 Locate the Server’s Client File Index Save Set IDs # recover -S fullSSID -iY Task 9 Recover the Server’s Client File Index# nsrim # nsrck -L6 Task 10 Re-create the Cluster Task 11 Recover the Cluster Data 151 Recover add /dev /devices 152 # unmount /mnt/var /mnt/usr /mnt Recovering a Single Cluster Node HP-UX Cluster Disaster RecoveryHow to Recover a Single Cluster Node Task1 Install the Software How to Perform a Cluster-Wide RecoveryTask 2 Restore the Cluster Database # scanner -S savesetid devicepath uasm -i y -rv # cmdeleteconf -c cluster1 Task 3 Start the Cluster# cmruncl Cmhaltpkg and not nsrshutdown , as follows Task 4 Restore the Data Legato AAM for AIX, HP-UX, and Linux Disaster Recovery Envsh Ftstartup -domain domainname Linux158 $FTDIR/config/domainnamesites Task 1 Install the SoftwareAAM installation directory Yes or No Yes? no Scanner devicepath /tmp/savefile 2&1 Task 2 Restore the Cluster$FTDIR/bin/envsh envcsh for C-shell Cd /usr/lpp/LGTOlcxx/bin Scanner -S savesetid devicepath -x uasm -rv -i Y pathnameCd /opt/LGTOlcxx/bin Run the networker.cluster script On the Primary Node $FTDIR/config $FTDIR/log $FTDIR/domainnamenodenameOn Each of Remaining Node in the Cluster Etc/rc Usr/bin/nwux.lc $FTDIR/bin/envsh envcsh for C-shell Task 5 Start the Cluster Software on Each NodeUsr/sbin/nwux.lc $FTDIR/bin/envsh envcsh for C-shell Cd $FTDIR/bin Envsh Ftstartup -domain domainname Mv /nsrsharedmntpt/nsr/res /nsrsharedmntpt Renaming the Resource DirectoryNsr/res.old Mv /nsrsharedmntpt/nsr/res.R /nsrsharedmntpt Recovering a Single Node Hacmp for AIX Disaster RecoveryRecovering a Single Node on Recovering an Entire Cluster on 165 How to Recover a Single Node Recovering an Entire ClusterTask 1 Install the Software on 166 Scanner -B devicepath Scanner devicepath /tmp/savefile 2&1167 Mv /nsr/res.R /nsr/res Mv /nsr/res /nsr/res.orig168 Glossary Glossary Backup AuthorizationBackup cycle Backup group Clone volume Backup CloneBrowse policy Carousel Consolidate Directed recoverySave Set Directive Enabler codeDomain controller Drive Inactivity timeout Full backupFirewall Fork Manual backup License enablerLevel Library Media database MediaMigration Multiplexing Online indexes NotificationOperator Override Recyclable volume RecoverPolicy Pool Resource database ResourceResource owner Retention policy Service port Save set recoverConsolidation Save set ID Staging SsidStand-alone Storage device Volume ID VolumeVolume name Volume pool 184 185 Index 186 Index 187 175 90, 101, 103, 105-106,109139 Unix 28-30,92 189 190 159 82-83143 111 192 60-61 193 155-156 119 127 129194