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Legato NetWorker, Release 7.0
Disaster Recovery Guide

Chapter 3: UNIX Disaster Recovery

3

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7. Reboot the computer when the recovery is complete. The computer should

now be restored as it was prior to the disaster.

Note:

By default, the directed recover option is enabled when you install the

NetWorker client. If the directed recover option was disabled on the client
before the disaster, you need to explicitly set this option to disable directed
recoveries to this client. This option is set through the nsradmin command. For
more information about setting the disable directed recover option on the
NetWorker client, refer to the Legato NetWorker Administrator’s Guide, UNIX
Version.

Task 3: Perform a Test Backup and Recovery

To test the NetWorker client backup and recovery process:

1. Perform a test backup using each of the Legato backup utilities

incorporated into the backup solution.

2. Perform a test recovery using the Legato utility used to back up the data.

For details, refer to the Legato NetWorker Administrator’s Guide.

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Summary of Contents for Legato Networker

Page 1: ...Legato NetWorker Module for EMC CLARiiON for Oracle Administrator s Guide Release 1 0 Legato NetWorker Release 7 0 Disaster Recovery Guide ...

Page 2: ...are Corporation UNIX X Open Company Ltda Access Logix Celerra CLARiiON EMC EMC2 MirrorView MOSAIC 2000 Navisphere SnapView SRDF Symmetrix TimeFinder EMC Corporation Date ONTAP NetApp NetCache Network Appliance SnapMirror SnapRestore Network Appliance Inc DLTtape Quantum Corporation Fujitsu Fujitsu Ltd Hewlett Packard HP HP UX HP Tru64 HP TruCluster Hewlett Packard Company IntraNetWare NetWare Nove...

Page 3: ...License to i use the Software installed in accordance with the Documentation and only on the licensed computer solely for its own internal operations and ii move the Software temporarily in case of computer system malfunction The License granted under this Agreement does not constitute a sale of the Software or any portion or copy of it Licensee may not use the Software on more than one computer s...

Page 4: ...f California as applied to agreements entered into and to be performed entirely within California between California residents without regard to the principles of conflict of laws or the United Nations Convention on Contracts for the International Sale of Goods 9 2 Government Restricted Rights This provision applies to Software acquired directly or indirectly by or on behalf of any government The ...

Page 5: ...pter 1 Introduction 19 What Is a Disaster 19 Disaster Recovery Guide Overview 20 Chapter 2 Preparing for a Disaster 21 Preparing for Disaster 21 Gathering the Key Information 22 Hardware Information 22 Software Information 23 Chapter 3 UNIX Disaster Recovery 25 Disaster Recovery Procedures 26 Replacing a Hard Drive 27 Prerequisites 27 Replacing the Hard Drive 27 Completing the Recovery Process 28 ...

Page 6: ...r s Bootstrap Save Set ID 34 Task 4 Recover the NetWorker Server Bootstrap 36 Task 5 Rename the NetWorker Server Configuration Files 37 Task 6 Recover All Client File Indexes 38 Task 7 Recover the Application and User Data 39 Task 8 Perform a Test Backup and Recovery 39 Recovering a NetWorker Storage Node 40 Prerequisites 40 How to Recover a NetWorker Storage Node 40 Task 1 Install the NetWorker S...

Page 7: ... Recovery 56 Repairing a Windows NT 4 0 Operating System Installation 57 Repairing Windows NT 4 0 57 Creating an ERD from the REPAIRDISK Save Set 57 How to Use the NetWorker User Program to Create an ERD 58 How to Use the NetWorker recover Command to Create an ERD 58 How to Use the ERD to Repair the Windows NT 4 0 Installation 59 Recovering a Windows Installation 60 Recovery Requirements 60 How to...

Page 8: ...er Client or Storage Node 82 Partial Recovery of a NetWorker Storage Node 82 Task 1 Satisfy the NetWorker Client or Storage Node Recovery Requirements 83 Task 2 Reinstall the NetWorker Client or Storage Node Software 83 Task 3 Recover the NetWorker Client or Storage Node Data 84 Task 4 Verify the NetWorker Client or Storage Node Recovery 86 Recovery of DHCP and WINS Databases 87 How to Recover a D...

Page 9: ...ete the Server Recovery 101 Recovering a Replicated NDS Partition 102 How to Recover a NetWare 4 10 SYS Volume 102 Task 1 Recover the NetWare 4 10 SYS Volume 102 Task 2 Restore the SMS Remote File System 104 Task 3 Complete the Recovery of the NetWare 4 10 SYS Volume 105 How to Recover a NetWare 4 11 NetWare 5 0 or IntraNetWare Server SYS Volume 105 Task 1 Recover the NetWare SYS Volume 106 Task 2...

Page 10: ...om the Cluster 119 Task 4 Install the Cluster Software and Patches on Node_B 119 Performing a Cluster Wide Recovery 119 Task 1 On Node_A Install and Configure the Software 120 Task 2 On Node_B Install and Configure the Software 121 Task 3 Install and Configure NetWorker 121 Task 4 Perform a Disaster Recovery 122 Task 5 Check and Reassign the Drive Assignments 122 Task 6 Recover the Data 123 Task 7...

Page 11: ... One or More Nodes in a Cluster 140 How to Restore One or More Nodes in a Cluster 141 Task 1 Replace the Damaged Hardware 141 Task 2 Verify Hardware Mappings 141 Task 3 Partition the Down Node s Boot Drive 141 Task 4 Update the Cluster Configuration 141 Task 5 Recover the Node Specific Data 142 Restoring an Entire Cluster 143 How to Restore an Entire Cluster 143 Task 1 Replace the Damaged Hardware...

Page 12: ...all the Software 154 Task 2 Restore the Cluster Database 154 Task 3 Start the Cluster 155 Task 4 Restore the Data 156 Chapter 11 Legato AAM for AIX HP UX and Linux Disaster Recovery 157 Recovering a Single Cluster Node 157 How to Recover a Single Cluster Node 157 Performing a Cluster Wide Recovery 159 How to Perform a Cluster Wide Recovery 159 Task 1 Install the Software 159 Task 2 Restore the Clu...

Page 13: ...ecovery 165 Recovering a Single Node 165 How to Recover a Single Node 166 Recovering an Entire Cluster 166 How to Perform a Cluster Wide Recovery 166 Task 1 Install the Software 166 Task 2 Restore the Cluster Database 166 Task 3 Start the Cluster 167 Task 4 Restore the Data 167 Glossary 169 Index 185 ...

Page 14: ...Legato NetWorker Release 7 0 Disaster Recovery Guide Contents 14 ...

Page 15: ...located over a network Managers who want to learn how to implement a disaster recovery program Users who are responsible for implementing disaster recovery plans and procedures Product Documentation Legato offers an extensive archive of product documentation at its web site www legato com Most of the documents are in Adobe Acrobat Portable Document Format PDF and can be viewed by downloading and i...

Page 16: ...hin the chapter or emphasized words Displayed messages are also written to nsr logs daemon log italic in command line A variable that must be provided in the command line nwadmin s server_name fixed width Examples and information displayed on the screen media waiting recover waiting for 8mm 5GB tape volume name fixed width boldface Commands and options that must be typed exactly as shown nsr_shutd...

Page 17: ...hes technical documentation and information about available support programs Customers with an active support agreement have access to Legato s integrated product knowledge base Help with Legato software issues is also available through Legato Technical Support Customers without an active support agreement can contact Support Sales and Renewal to purchase annual Software Update Subscriptions or Le...

Page 18: ...Legato confirms receipt of all e mail correspondence Although Legato cannot respond personally to every request all comments and suggestions are considered during product design Help improve Legato documentation by completing a brief survey Visit the Legato web site at www legato com navigate to the documentation page and click on the link to the survey Licensing and Registration Contact Legato li...

Page 19: ...mple working files software programs or system files is disrupted A disaster can also damage network components such as data devices hardware media and software A disaster can result from any of the following Computer viruses that can corrupt data Hardware and software failures Infrastructure interruptions inconsistencies or loss of services such as communication or network connections The degree ...

Page 20: ...ge 25 Chapter 4 Windows Disaster Recovery on page 47 Chapter 5 NetWare Disaster Recovery on page 89 Chapter 6 Microsoft Cluster Disaster Recovery Windows NT 4 0 on page 111 Chapter 7 Microsoft Cluster Disaster Recovery Windows 2000 and NET on page 127 Chapter 8 Sun Cluster Disaster Recovery on page 135 Chapter 9 HP TruCluster Disaster Recovery on page 139 Chapter 10 HP UX Cluster Disaster Recovery...

Page 21: ...ng a backup group Otherwise a bootstrap is not saved backups performed using the command line or the NetWorker User program do not save the NetWorker server bootstrap You should also use a local backup device on the server to back up the server s bootstrap Always perform a scheduled backup of the NetWorker server after upgrading to a new release of NetWorker software This ensures that an upgraded ...

Page 22: ...istant to disaster Gathering the Key Information Maintain accurate records for each hardware software network device and media component Hardware Information Maintain the following up to date information regarding computer hardware Filesystem configuration Fully qualified domain names IP addresses and hostnames For Domain Name System DNS clients maintain the DNS host s internet address and hostnam...

Page 23: ...n for each NetWorker server Kernel configuration and location Device drivers A list of any Windows volume mount points Table 1 lists where to obtain software information for a specific operating system Table 1 Operating System Information Part 1 of 2 Platform Recovery Repair Prerequisite Information UNIX Recovering the UNIX operating system Installing and Configuring the UNIX Operating System on p...

Page 24: ...equirements on page 66 Windows all versions NetWorker client or storage node recovery requirements Recovering a NetWorker Client or Storage Node on page 82 Windows all versions Dynamic Host Configuration Protocol DHCP and Windows Internet Naming Service WINS database recovery Recovery of DHCP and WINS Databases on page 87 NetWare Recovering the NetWare operating system Recovering the NetWare Opera...

Page 25: ... storage node host computer running NetWorker 7 x software This chapter includes the following sections Disaster Recovery Procedures on page 26 Replacing a Hard Drive on page 27 Installing and Configuring the UNIX Operating System on page 28 Recovering a NetWorker Server on page 32 Recovering a NetWorker Storage Node on page 40 Recovering a NetWorker Client on page 43 ...

Page 26: ...a Hard Drive on page 27 The operating system Installing and Configuring the UNIX Operating System on page 28 A NetWorker server Recovering a NetWorker Server on page 32 A NetWorker storage node Recovering a NetWorker Storage Node on page 40 A NetWorker client Recovering a NetWorker Client on page 43 Data on any computer Refer to the appropriate Administrator s Guide Data on a computer with Legato ...

Page 27: ...g system commands Size of the drive Filesystem volume information Volume label assigned to each disk partition How the disk is partitioned How the disk is loaded The size of the disk Each logical volume size and label Each filesystem Note Though it does not affect NetWorker operation you could also note any use of mirroring Redundant Array of Independent Disk RAID striping compression or volume se...

Page 28: ...Recovering a NetWorker Client on page 43 Each of the preceding procedures describe how to recover the NetWorker software as well as the computer s application and user data Installing and Configuring the UNIX Operating System The following sections provide information on reinstalling and configuring the UNIX operating system Prerequisites on page 28 How to Install and Configure the UNIX Operating ...

Page 29: ...f UNIX and any patches that were in use prior to the disaster Then configure only those features that enable the computer to communicate over the network You can recover the remaining operating system configuration settings after reinstalling the NetWorker software You can recover the UNIX operating system back to the original computer or to a different computer To recover the operating system com...

Page 30: ...he root volume group and kernel parameters such as asynchronous I O If the resources are available reconstruct nonroot volume group filesystems and logical volumes Task 2 Configure the Operating System To configure the operating system 1 Configure the network exactly as it was before the disaster If you do not the NetWorker software will treat the computer as a new computer If the computer has a d...

Page 31: ...evice configuration files to enable the computer to communicate with the device during recovery For details on modifying the device configuration files refer to the Legato NetWorker Administrator s Guide 3 Ensure that the block size mode for tape devices used with NetWorker is set to variable Otherwise data recovery may fail The procedure for setting the device block size varies depending on your ...

Page 32: ...on page 32 How to Recover a NetWorker Server on page 32 Prerequisites Before you can recover the NetWorker server be sure that the UNIX operating system is installed on the computer For information about reinstalling the UNIX operating system see Installing and Configuring the UNIX Operating System on page 28 To recover the NetWorker server you need the following Version and patch level of the Net...

Page 33: ...orker Server Bootstrap on page 36 Task 5 Rename the NetWorker Server Configuration Files on page 37 Task 6 Recover All Client File Indexes on page 38 Task 7 Recover the Application and User Data on page 39 Task 8 Perform a Test Backup and Recovery on page 39 Task 1 Install the NetWorker Server Software To install the NetWorker server software 1 Install the same version of the NetWorker server soft...

Page 34: ...r res directory If a resource for the stand alone device does not exist create it using the NetWorker Administrator program If you want to recover data using an autochanger ensure that an autochanger resource exists this is defined in the nsr res directory If the autochanger resource does not exist create it using the jbconfig command For information about using the jbconfig command refer to the L...

Page 35: ... into the appropriate device 2 At the command line switch to the directory where the NetWorker binaries and executables are located 3 If you are using an autochanger insert the first volume of the bootstrap save set into the first drive of the autochanger using the following command nsrjb lnv S slot f device_name where slot is the slot where the first volume is located device_name is the pathname ...

Page 36: ...cov recovers it to the resource directory res R For syntax and option information about mmrecov refer to the Legato Command Reference Guide 2 If the server has multiple devices configured and enabled the following message appears If you receive this message enter the name of the device you are using for the recovery What is the name of the device you plan on using dev rmt 0hbn dev rmt 0hbn 3 When ...

Page 37: ...estart the service Otherwise just restart the service If the on line index for the server name was lost it can be recovered using the nsrck command Task 5 Rename the NetWorker Server Configuration Files Because the configuration files cannot be reliably overwritten while the NetWorker software is running mmrecov recovered the res directory as res R by default In addition mmrecov might have recover...

Page 38: ...er always has the NetWorker client installed this task includes recovering the client file index for the NetWorker server To recover all client file indexes 1 Enter the nsrck L7 command nsrck L7 client_name 2 If you are using a cloned version of the client file index the NetWorker server may prompt you to load an original volume not the clone volume To use the clone a Enter Ctrl c to exit out of n...

Page 39: ...any UNIX operating system boot files that should not be overwritten during a recovery For more information on boot files see Prerequisites on page 28 5 Click Start to begin the recovery Note By default the directed recover option is enabled when you install the NetWorker client If the directed recover option was disabled on the client before the disaster you need to explicitly set this option to d...

Page 40: ...ork If you need to reinstall the UNIX operating system see Installing and Configuring the UNIX Operating System on page 28 If you need to recover the NetWorker server see Recovering a NetWorker Server on page 32 Additionally ensure that you have the following Hostname of the NetWorker server Version and patch level of the NetWorker storage node software that was on the computer before the disaster...

Page 41: ...s for other computers on the network These volumes contain the application and user data that are required to fully recover computers that were protected with the NetWorker client software If you want to recover the application and user data for other NetWorker clients see Recovering a NetWorker Client on page 43 If you want to recover application and user data that was on the storage node compute...

Page 42: ...t the computer when the recovery is complete The computer should now be restored as it was prior to the disaster Note By default the directed recover option is enabled when you install the NetWorker client If the directed recover option was disabled on the client before the disaster you need to explicitly set this option to disable directed recoveries to this client This option is set through the ...

Page 43: ...e following Version and patch level of the NetWorker client The name of the computer on which the NetWorker server is running Name of any links to NetWorker directories An example of a typical link from a NetWorker directory to a user directory is nsr to usr nsr How to Recover a NetWorker Client This section describes how to recover a NetWorker client computer back to the original computer or to a...

Page 44: ... whose application and user data you are recovering 2 Start the nwrecover program on the client computer whose application and user data you are recovering 3 Mark all of the directories and files that you want to recover Important Do not recover any UNIX operating system boot files that should not be overwritten during a recovery For more information on boot files see Prerequisites on page 28 4 To...

Page 45: ... this option to disable directed recoveries to this client This option is set through the nsradmin command For more information about setting the disable directed recover option on the NetWorker client refer to the Legato NetWorker Administrator s Guide UNIX Version Task 3 Perform a Test Backup and Recovery To test the NetWorker client backup and recovery process 1 Perform a test backup using each...

Page 46: ...Legato NetWorker Release 7 0 Disaster Recovery Guide 3 Prerequisites 46 ...

Page 47: ...ough a Microsoft Removable Storage library can be an autochanger or a stand alone drive the NetWorker software provides optional Removable Storage support for autochangers only For more information refer to the Legato NetWorker Administrator s Guide Microsoft Windows Version This chapter includes the following sections Disaster Recovery Summary Procedures on page 48 Disaster Recovery of Multiple C...

Page 48: ...ctions for each of the remaining steps see the task list under Recovering a NetWorker Server on page 66 3 Reinstall the NetWorker software if necessary 4 Configure the storage device Depending on the configuration do one of the following If you are using a stand alone storage device configure the device and load the volume that contains the latest bootstrap If you are using an autochanger with Rem...

Page 49: ...y the contents of the NetWorker_install_path res R directory to the NetWorker_install_path res directory 8 Restart the NetWorker services 9 Reset and inventory the autochanger if you are using one If you are using a stand alone drive skip this step and proceed to step 10 If Removable Storage is disabled do the following a Run the nsrjb vHE command to reset the autochanger b Run the nsrjb Iv comman...

Page 50: ...orker server should be fully functional before you begin recovery of its associated clients or storage nodes However if the storage device required for a NetWorker server recovery is connected to a remote storage node you might have to partially recover the storage node before you can recover the NetWorker server For more information see Partial Recovery of a NetWorker Storage Node on page 82 To p...

Page 51: ...Worker Client or Storage Node Software on page 83 5 Recover the data and SYSTEM save sets using the NetWorker User program For instructions see Task 3 Recover the NetWorker Client or Storage Node Data on page 84 6 Reboot the computer after the recovery is complete 7 Verify the recovery For instructions see Task 4 Verify the NetWorker Client or Storage Node Recovery on page 86 Disaster Recovery of ...

Page 52: ...ate run mminfo from the command prompt and check the size of the SYSTEM save sets In many cases about 500 MB of temporary disk space is sufficient To replace the failed hard drive the following information is required The storage capacity of the hard drive being replaced plus the amount of extra disk space required for temporary files The drive letter size format and volume label assigned to each ...

Page 53: ...ting in a Windows NET MSCS environment you must use the legacy NetWorker disaster recovery method For details see the appropriate procedure NetWorker Server Recovery Summary Procedure on page 48 NetWorker Client or Storage Node Recovery Summary Procedure on page 50 Chapter 7 Microsoft Cluster Disaster Recovery Windows 2000 and NET on page 127 To use the ASR recovery method perform these tasks in t...

Page 54: ...recovering The latest NetWorker backup for the computer you are recovering Note To avoid delays during a recovery if you routinely move NetWorker backup media to an offsite location for safekeeping ensure that all necessary volumes are available To list the media associated with the files you want to recover run mminfo mv from the command prompt For more information about the mminfo command refer ...

Page 55: ...on while creating the ASR disk during the graphical phase of Windows setup the NetWorker ASR Client dialog box appears Expand My Computer and mark the save sets you want to recover then click Continue For example mark the following save sets C D SYSTEM STATE SYSTEM DB SYSTEM FILES Note For more information about the Pause During Recovery option refer to the Legato NetWorker Administrator s Guide M...

Page 56: ...overy 8 If you marked any save sets for recovery click the Start toolbar button to begin the recovery Task 3 Verify the NetWorker Client Recovery To verify the NetWorker client recovery 1 Reboot the NetWorker client host computer and verify that the NetWorker Remote Exec and NetWorker Power Monitor services have started Note You can disable the NetWorker Power Monitor service if it is not needed F...

Page 57: ... recovering required only if you are repairing the registry or system state Repairing Windows NT 4 0 If you do not have a current ERD see Creating an ERD from the REPAIRDISK Save Set on page 57 If you have a current ERD see How to Use the ERD to Repair the Windows NT 4 0 Installation on page 59 Creating an ERD from the REPAIRDISK Save Set If you do not have a current ERD for the computer you are r...

Page 58: ... dialog box select the computer you are using to create the ERD and click OK 6 Mark the REPAIRDISK save set for recovery 7 From the Options menu select Recover Options 8 In the Relocate Recovered Data To dialog box enter A and click OK 9 Click the toolbar Start button to begin recovery of the REPAIRDISK save set to the disk in the A drive Important If the REPAIRDISK save set is larger than 1 44 MB...

Page 59: ...sing the recover command as follows recover c failed_hostname recover cd recover add REPAIRDISK recover relocate a recover recover This procedure initiates recovery of the failed computer s REPAIRDISK save set to the disk in the NetWorker server s A drive How to Use the ERD to Repair the Windows NT 4 0 Installation To use the ERD to repair the Windows NT 4 0 installation 1 On the computer you are ...

Page 60: ... directly supported by Windows NT 4 0 you might need to reinstall the device driver software For information on device driver software refer to the device manufacturer s documentation Recovering a Windows Installation This section explains how to recover all supported versions of the Windows operating system during disaster recovery of a NetWorker server storage node or client host computer You ca...

Page 61: ...municate over the network The other Windows configuration settings are restored during the NetWorker recovery To recover a Windows installation perform these tasks in the specified order Task 1 Install the Windows Operating System on page 62 Task 2 Configure the Devices and Test the Operating System on page 65 Important If you are recovering the operating system to a different computer Assign the ...

Page 62: ...owing configuration options as they were prior to the disaster Windows installation location Computer name Administrator account password Regional settings Date and time settings Note If the computer you are recovering was a domain controller prior to the disaster that configuration will be restored later in the recovery process 2 After you finish installing the operating system configure the comp...

Page 63: ...tBIOS Computer Name dialog box ensure that the Primary DNS Suffix Of This Computer box contains the correct domain name the name that is appended to the host name to form the fully qualified domain name For example the fully qualified domain name for a computer named kingdome might be kingdome seattle washington com e Start the Control Panel NetWork and Dial up Connections tool f In the Network an...

Page 64: ...lick Settings in the Performance section c In the Performance Options dialog box select the Advanced tab and click Change in the Virtual Memory section d In the Virtual Memory dialog box set the virtual memory options Click OK Windows 2000 a Start the Control Panel System tool b In the System Properties dialog box select the Advanced tab and click Performance Options c In the Performance Options d...

Page 65: ...ct the Enable Library check box in the Properties dialog box If you do not plan to configure the NetWorker software to use Removable Storage clear the Enable Library check box in the Properties dialog box e Repeat step c and step d for each stand alone drive or autochanger connected to the NetWorker server or storage node host computer The NetWorker software supports optional use of Removable Stor...

Page 66: ... for recovering a NetWorker server Instead use the ASR recovery method if possible For more information see Performing Windows ASR Recovery on page 53 NetWorker Server Recovery Requirements To recover a NetWorker server requires The same release and patch level of the NetWorker software that was in use immediately prior to the disaster The installation path of the NetWorker software prior to the d...

Page 67: ...en recovering a NetWorker server that was also being used as a Legato License Manager server not recommended the lictype res file of the Legato License Manager is not restored during the NetWorker server recovery This is because the Legato License Manager files and directories are not considered part of the NetWorker software After completing the disaster recovery on the NetWorker server you must ...

Page 68: ... configure the NetWorker server 1 In the NetWorker Administrator program open the NetWorker server s Client resource and verify that the Aliases attribute in the Preferences tab contains the correct information For example aliases for a computer named kingdome might be kingdome kingdome seattle washington com 2 Create and configure the NetWorker server s Device resources Do not mount or relabel an...

Page 69: ...nt window expand Storage Removable Storage Physical Locations c Right click the icon for the autochanger and select Inventory d Minimize but don t close the Computer Management window e After the Removable Storage inventory is complete start the NetWorker Administrator program and select Devices on the Configure tab f In the Devices window right click the Devices icon and select Create g In the Cr...

Page 70: ...ker server s Client resource to reflect the correct path b Stop and restart the following NetWorker services NetWorker Backup and Recover Server NetWorker Remote Exec Service Task 3 Locate the NetWorker Server Bootstrap Save Set ID If you already know the save set ID of the NetWorker server s most recent bootstrap skip this task and go to Task 4 Recover the NetWorker Server Bootstrap on page 72 Th...

Page 71: ...cheduled backups into the appropriate device Do not use the NetWorker software to mount the media the NetWorker server does not currently have the necessary information to recognize the media b Start a Windows command prompt and change to the NetWorker_install_path bin directory c If you are using an autochanger load the first volume of the bootstrap save set into the first drive of the autochange...

Page 72: ...vious task you have already completed this step proceed to step 2 If you did not run the scanner command in the previous task do the following a Insert into the storage device the backup or clone volumes that contain the most recent bootstrap save set Do not use the NetWorker software to mount the volume the NetWorker server does not currently have the necessary information to recognize the media ...

Page 73: ...wing message appears enter the save set ID for the latest bootstrap If you are recovering the bootstrap from a clone volume enter the save set ID associated with the clone Enter the latest bootstrap save set ID 20076 6 When the following message appears enter the file number to begin the recovery if known or accept the default of zero Enter starting file number if known 0 130 7 When the following ...

Page 74: ...es directory as res R To put the recovered resource configuration files into effect 1 Stop the following NetWorker services on the NetWorker server NetWorker Backup and Recover Server NetWorker Remote Exec Service 2 Copy the contents of the NetWorker_install_path res R directory to the NetWorker_install_path res directory 3 Restart the NetWorker services Task 6 Reset and Inventory the Autochanger ...

Page 75: ...rage Enabled To reset and inventory an autochanger with Removable Storage enabled 1 In the NetWorker Administrator program select Autochanger from the Configure tab 2 In the Autochanger window right click the icon for the Removable Storage jukebox and select Delete 3 Start a Windows command prompt and change to the directory that contains the NetWorker binary files The default location is NetWorke...

Page 76: ...ool to this jukebox Continue allocating until all of the NetWorker volumes belonging to the library associated with this jukebox are moved from the Import pool to the appropriate type specific pool under Storage Removable Storage Media Pools Legato NetWorker 9 In the Autochanger Operations dialog box click the Reset button to reset the Removable Storage jukebox 10 In the Autochanger Operations dia...

Page 77: ...ume In that case a Enter Ctrl c to exit nsrck b Delete the records of the original volumes by running the following command nsrmm d volume_name For example if the NetWorker software requests the original volume mars 1 but that volume is not available run the following command to delete mars 1 from the media database nsrmm d mars 1 c Restart the following NetWorker services NetWorker Backup and Rec...

Page 78: ...ows Online Help topics on creating mounted drives and using the Disk Management utility Note This special handling is not required when performing ASR recovery To recover the remainder of the NetWorker server data 1 Log on to Windows with local administrator privileges Note Directed recovery of SYSTEM save sets is not supported To recover SYSTEM save sets you must be logged on to the computer bein...

Page 79: ...ving to reboot twice restore the SYSTEM STATE save set last If you recover all save sets in a single operation the NetWorker User program restores them in the correct order If you recover save sets in multiple NetWorker User operations recover the SYSTEM STATE save set last The bootstrap and client file indexes are browsable for NetWorker releases earlier than 6 0 If you are recovering a backup fr...

Page 80: ...em protected files and restart services that were automatically stopped prior to recovery Note By default the directed recover option is enabled when you install the NetWorker client If the directed recover option was disabled on the client before the disaster you need to explicitly set this option to disable directed recoveries to this client This option is set through the nsradmin command For mo...

Page 81: ...Monitor and NetWorker Remote Exec services are started 2 Use the Windows Event Viewer to examine the event logs for errors In particular check for Service startup errors related to the Windows system state Errors regarding the recovery of Windows system protected files For information about how the NetWorker software handles the Windows system state and system protected files refer to the Legato N...

Page 82: ... installation guide You can recover a NetWorker client or storage node to the original computer or to a different computer To recover the client or storage node perform the following tasks in the specified order Task 1 Satisfy the NetWorker Client or Storage Node Recovery Requirements on page 83 Task 2 Reinstall the NetWorker Client or Storage Node Software on page 83 Task 3 Recover the NetWorker ...

Page 83: ...aster Backup or clone volumes that contain the NetWorker client or storage node s data Note If you routinely move NetWorker backup media to an offsite location for safekeeping ensure that you have all necessary volumes available to avoid delays during a recovery You can run the mminfo s server mv command from the command prompt to list the media associated with the files you intend to recover For ...

Page 84: ...nd the mounted volume s data in a single operation the data will be recovered to the root of the host volume and recovery of the mount point will fail To successfully recover the mounted volume s data you must first manually recreate the mount point using the same path as the original You can then perform a separate NetWorker file recovery to restore just the mounted volume s data without includin...

Page 85: ...drives SYSTEM STATE SYSTEM FILES SYSTEM DB SHAREPOINT for Windows 2000 SharePoint Portal Servers only Windows NT 4 0 All local drives SYSTEM STATE REPAIRDISK recover only if needed Note To avoid having to reboot twice restore the SYSTEM STATE save set is last If you recover all save sets in a single operation the NetWorker User program restores them in the correct order If you recover save sets in...

Page 86: ...d prior to recovery Note If you perform a complete reinstallation of the Windows operating system during a disaster recovery the display resolution will be set to default values when the disaster recovery is complete To reconfigure to the previous display settings use the Control Panel Display tool This problem does not occur if you perform an ASR recovery on a Windows NET or Windows XP Profession...

Page 87: ...perly 6 Verify that any applications such as Microsoft Office that were running prior to the disaster have been properly restored To verify this run each application and open a previously saved document 7 If you want to use Active Desktop install it after you have recovered all of the computer s data 8 If the NetWorker client or storage node computer was previously configured as a domain controlle...

Page 88: ... databases are automatically included in ASR backup and recovery no special handling is required How to Recover a DHCP Database To recover a DHCP database 1 Using the NetWorker User program recover the SystemRoot System32 dhcp directory on the DHCP server 2 Using Microsoft DHCP administrative tools restore the DHCP database For detailed instructions refer the DHCP database restore procedures in th...

Page 89: ...ant This chapter applies only to NetWorker clients and servers running NetWorker release 4 2 x NetWare version This chapter includes the following sections Replacing a Hard Drive on page 90 Recovering the NetWare Operating System on page 91 Recovering a NetWare NetWorker Server on page 94 Recovering a Replicated NDS Partition on page 102 Note All of the utilities referenced in this chapter are Net...

Page 90: ...n about each drive using install or nwconfig on NetWare 5 0 This server utility provides information about each hard drive including each volume segment on the drive netadmin in DOS or the NetWorker Administrator program nwadmin in Windows dsrepair This server utility enables you to perform a check on each partition and replica autoexec ncf This file contains the bindery context settings ndir This...

Page 91: ...Partition on page 102 Note To recover computer data using NetWorker software refer to the Legato NetWorker Administrator s Guide NetWare Version Recovering the NetWare Operating System The following sections contain information about recovering the NetWare operating system Prerequisites on page 91 How to Recover the NetWare Operating System on page 92 Completing the Recovery Process on page 94 Pre...

Page 92: ...on of the operating system Alternatively perform a partial installation using install or nwconfig In this case install and configure only those files that enable the computer to communicate over the network Then recover the remaining operating system and configuration files using the NetWorker software To recover the operating system complete the following tasks Task 1 Install the Operating System...

Page 93: ...n object using the same name If the Organization object does not have the same name the subtree will contain new empty containers Task 2 Configure the Operating System To configure the operating system 1 Configure the IPX SPX and TCP IP properties exactly as they were configured before If you do not the NetWorker software will assign the computer a new host ID If the computer has a different host ...

Page 94: ...f the operating system does not recognize the devices you might need to Modify the device configuration files to enable the computer to communicate with the device during recovery Load the SCSI driver and its associated ASPI driver Install the device driver Completing the Recovery Process To complete the recovery process after installing and configuring the operating system use the following proce...

Page 95: ...tWorker server indexes By default this directory is located in the SYS NSR INDEX server_name directory NetWorker server configuration files By default this directory is located in the SYS NSR RES directory How to Recover a NetWare NetWorker Server To recover a NetWorker server complete the following tasks Task 1 Install the NetWorker Software on page 96 Task 2 Configure NetWorker Device and Client...

Page 96: ...2 Install any NetWorker patches that were installed prior to the disaster Task 2 Configure NetWorker Device and Client Resource To configure the device and client resource 1 Configure the Device resource Note If you are recovering data using an autochanger enter F4 to verify that the autochanger correctly appears in the Autochanger window 2 Configure the Client resource associated with the server ...

Page 97: ...er Bootstrap This section describes how to recover the NetWorker server s bootstrap By default these files reside in the SYS NSR and SYS NSR RES directories and can be recovered using the NetWorker Utilities program To recover the NetWorker bootstrap 1 Load and inventory the devices This ensures that the NetWorker software can recognize which slots contain which volumes If you load a clone volume ...

Page 98: ...tochanger use the autochanger controls to manually select the slot containing the most recent backup volume To determine the required backup volume refer to the printed bootstrap records 6 Press Enter when the following message appears Put the volume for disaster recovery in device xxxx and press Enter 7 Press Enter to exit the NetWorker Utilities The server s processor will halt with multiple ABE...

Page 99: ...rom the NetWorker Utilities program or use an older volume Task 6 Recover the NetWorker Server Data To recover the remainder of the server s data using the NetWorker Utilities program To recover the NetWorker server data 1 Insert the most recent backup or clone volumes into the device 2 From the Mount dialog box select the required volume Notice that the volume is now marked R this means the volum...

Page 100: ... process Whenever possible use an active replica to restore what was lost from the NDS tree If this is not feasible you must restore from a Storage Management Services SMS backup in the following way 1 Restore the NDS information 2 Restore the filesystem data and trustee rights NDS backup and restore is based on object names The objects must exist in the tree before you can restore the filesystem ...

Page 101: ...ultiple files recover one volume at a time 2 From the F2 File menu in the Browser window display the NetWorker Recover Options dialog box Select Don t Overwrite Data 3 Verify the recovered data From a workstation use the ndir command or NetWare Administrator NWAdmin to check the data trustee assignments file ownership and other related information 4 Select Cross Check Index from the Indexes dialog...

Page 102: ...DS tree you do not want to eliminate any references other objects might have to the volume If you must delete objects on a NetWare 4 11 IntraNetWare server use the NetWare 4 10 procedure for recovering from a disaster How to Recover a NetWare 4 10 SYS Volume To recover a SYS volume on a NetWare 4 10 server complete the following tasks Task 1 Recover the NetWare 4 10 SYS Volume on page 102 Task 2 R...

Page 103: ... replica synchronization If necessary use NDS Manager or dsrepair on the servers containing master replicas to remove the failed server from the replica ring 7 Shut down the failed server and replace any damaged server hardware If you replace a hard drive be sure that it is the same size or larger 8 Format the DOS partitions and reinstall DOS Important Use the DOS Time command to ensure that the c...

Page 104: ...e which name spaces need to be loaded MAC NAM LONG NAM etc 2 Load the filesystem TSA specific to your version of the NetWare operating system by entering one of the following commands LOAD TSA410 LOAD TSA312 LOAD TSA500 3 Recover the filesystem for each volume affected by the failure Do not recover the Schema and Root they are restored from a replica You also do not need to recover Server Specific...

Page 105: ...repair to synchronize the replica on all servers 5 Verify the recovered data From a workstation use either the nwadmin server utility or the ndir workstation utility to check the data trustee assignments file ownership and other related information The SYS volume should now be restored How to Recover a NetWare 4 11 NetWare 5 0 or IntraNetWare Server SYS Volume To recover a SYS volume on a NetWare ...

Page 106: ...servers do not delete the server or volume objects for the failed server from the NDS tree You do not want to eliminate any references other objects might have to the server If objects were deleted from the NDS tree use the NetWare 4 10 procedure for recovering from a disaster 2 If the failed server held a master replica use NDS Manager or dsrepair to designate a new master replica on a different ...

Page 107: ...o avoid time synchronization errors 2 Reinstall NetWare 4 11 NetWare 5 0 or IntraNetWare and NDS on the repaired or replaced server Run install or nwconfig select Custom Install and follow the directions on the screen a When prompted enter the same server name and internal IPX number that the server had prior to the failure Use the STARTUP NCF and AUTOEXEC NCF files included with the server specif...

Page 108: ...ake edits as necessary If the current files are the same as the original files only the current files are displayed The server now contains all the files necessary to perform an SMS remote filesystem restore 3 To finish the installation Press Enter to exit the utility NetWare will not copy the remaining system and public files but will exit the utility These files should be recovered from a backup...

Page 109: ...erver had non SYS volumes that were not affected by the failure no further action is needed because the SERVDATA NDS file preserves the trustee assignments on these other volumes 4 Shut down and restart the server 5 Use NDS Manager or dsrepair to re establish replicas on the failed server Use DSMISC LOG to view a copy of the replica list that resided on the server at the time of backup 6 Verify th...

Page 110: ...Legato NetWorker Release 7 0 Disaster Recovery Guide 5 Recovering a Replicated NDS Partition 110 ...

Page 111: ... the MSCS Cluster Configuration on page 117 Performing a Cluster Wide Recovery on page 119 Important To ensure proper termination never power off any node in the cluster unless it is connected with a Y cable Recovering One Node in a Cluster Note In the example used for the following tasks Node_A is still working and Node_B has failed To recover a failed node within a cluster perform the following ...

Page 112: ... cluster 4 Shut down Node_B if it is still running and disconnect it from the cluster 5 Fix or replace the damaged hardware on Node_B if necessary 6 Reconnect Node_B to the cluster Task 2 Reinstall Windows NT 4 0 and MSCS on Node_B To reinstall Windows NT and MSCS on Node_B 1 Install the Windows NT 4 0 Server Enterprise Edition 2 Apply Windows NT 4 0 service pack 3 3 Install the MSCS software 4 If...

Page 113: ... properly Recovering a Cluster Shared Disk This section describes how to recover data from a cluster shared disk that is not a quorum disk To recover a cluster shared disk perform the following tasks Task 1 Take the Dependent Resources Offline on page 113 Task 2 Replace the Hard Drive on page 114 Task 3 Recover the Data to the Shared Disk on page 115 Task 4 Configure the Cluster to Include the Sha...

Page 114: ... Panel Services tool set the Startup Type of the Cluster Service to Manual 2 In the Cluster Administrator program open the Property window for each resource in the resource group Select the Do Not Restart property from the Advanced window 3 Remove the shared disk from the dependency list of any resources that depend on the shared disk Important If you fail to perform this step you may not be able ...

Page 115: ... the cluster to include the shared disk 1 Using the Control Panel Services tool start the Cluster Service if it was previously stopped 2 In the Cluster Administrator program create a new cluster resource to represent the new disk 3 Add the cluster resource to the resource group you created in Task 1 Take the Dependent Resources Offline on page 113 If you did not create a new resource group Task 1 ...

Page 116: ...he quorum disk designation Recovering the cluster configuration data on the quorum disk is important during a disaster recovery Recovery of the quorum resource information is not automatic If the quorum disk is owned by a virtual server configure the virtual server as a NetWorker client For the client s Save Set attribute specify one of the following All The disk volume or directory that contains ...

Page 117: ...n 3 If necessary install the NetWorker software on the node that has access to the quorum disk 4 Recover any data except the quorum data that resided on the quorum disk prior the disaster Important Do not recover the quorum data Recovering the MSCS Cluster Configuration The following procedure is based on these assumptions You have not changed the disk configuration from the time you performed the...

Page 118: ...is procedure uses Node_A for example 2 Verify that the Cluster Service is running on Node_A 3 From Node_A recover the following System state Quorum data If the quorum disk is owned by a virtual server use the directed recover procedure For details refer to the Legato NetWorker Administrator s Guide Microsoft Windows Version Make sure that you recover the quorum data to a different directory on the...

Page 119: ...Administrator and evict Node_B from the cluster Task 4 Install the Cluster Software and Patches on Node_B To install the cluster software and patches on Node_B 1 Reboot Node_B 2 Install the cluster software and join it to the cluster in which Node_A is a member node 3 On Node_B apply any needed cluster patches and Windows service packs 4 Verify that the cluster configuration has been successfully ...

Page 120: ...eck the Disk Signatures on page 123 Task 8 Join Node_B to the Cluster on page 124 Task 1 On Node_A Install and Configure the Software To install and configure the software on Node_A 1 Make sure the node has been properly Shut down Connected through the shared disks Terminated 2 Install Windows NT 4 0 Server Enterprise Edition a Add the server to the domain using the same cluster login account b Cr...

Page 121: ...erprise Edition a Add the server to the domain using the same cluster login account b Create the partitions so the new disk configuration matches the original configuration c Use the same server name fully qualified DNS if used and IP address that were used originally d Configure the network adapters and the IP address using the original settings whenever possible e Log on to the domain 3 Using th...

Page 122: ...S directory in the quorum to a different location for example MSCStemp 5 Shut down Node_A Do not reboot Node_A a The system will prompt you to restart Select Yes b Shut down the node when the system is in its reboot cycle 6 Restart Node_B and log on with Administrator privilege 7 On the quorum drive a Rename the existing MSCS directory to MSCSold b Move the restored MSCS directory that was restore...

Page 123: ...ck the status of the disks There should no longer be any phantom disks and the new shared disks should have the proper drive letter assignments The new shared disk signatures are located in the following registry key HKEY_LOCATION_MACHINE SYSTEM CurrentControlSet Services Clusdisk Parameters AvailableDisks Task 6 Recover the Data To recover the data 1 Use the NetWorker User program to restore the ...

Page 124: ...e Cluster Administrator program Rename all of the old shared disks Create new resources for the physical disks to match the old shared disks Check for dependencies for the physical disk and make the necessary modifications e Create a new group and move all of the old shared disks to this group This is done for cleanup purposes Important You cannot delete the old shared disks until both nodes are r...

Page 125: ...ension This manages the NetWorker server resource type in Node_B For more details refer to the Legato NetWorker Installation Guide Microsoft Windows Version c On Node_B you can choose to Configure the tape devices Install the NetWorker client software 6 Install any NetWorker specific patches 7 Recover all the data that belongs to Node_B This includes the system configuration data For example Syste...

Page 126: ...Legato NetWorker Release 7 0 Disaster Recovery Guide 6 Task 8 Join Node_B to the Cluster 126 ...

Page 127: ... 2000 or Windows NET MSCS host systems ensure that each of the following prerequisites is satisfied The NetWorker software is installed on each cluster node Backups that include the SYSTEM save sets SYSTEM FILES SYSTEM DB and SYSTEM STATE have been performed on a regular basis by a NetWorker server in the same domain as the cluster nodes This will help ensure that data is available for recovery to...

Page 128: ... Disk Designation How to Recover a Failed Quorum Disk To recover a failed quorum disk 1 Close all instances of Microsoft Cluster Administrator 2 Stop the cluster service on both nodes 3 Using the Computer Management Services tool access the Cluster Service Properties dialog box and change the startup type to Manual on both nodes 4 Power down both nodes and the drive array 5 Replace the failed quor...

Page 129: ...box and change the Cluster service startup type to Automatic on both nodes 21 Reboot both nodes Recovering One Cluster Node This section describes how to restore the Cluster Server and cluster database if one of the cluster nodes fails Unexpected software behavior such as corruption of a cluster critical file may cause a partitioned cluster in which one node of the cluster is unaware of the presen...

Page 130: ...g up the Cluster Server Windows NET you must reproduce the preexisting application environment on Node_B so MSCS can administer the applications as it did before the node failed One way to reproduce the preexisting application environment is to perform disaster recovery procedures for each application that was previously installed on the node 3 Using the Cluster Administrator select Join An Existi...

Page 131: ...n 10 Click Start to begin the recovery 11 After the recovery reboot Node_A 12 Using Cluster Administrator on Node_A confirm that the cluster resources were restored to the point in time when the backup occurred If you have been performing regular scheduled backups this will recover the cluster database to a point in time shortly before the loss of Node_B 13 Start the Cluster service on Node_B usin...

Page 132: ...hat both cluster nodes Node_A and Node_B have failed 1 Ensure that the system disk of each node is configured using the same partitioning scheme and drive letter that was in use prior to the loss of the node Note On each cluster node the repaired or replaced system disk must have the same partitioning scheme disk format and drive letter configuration that was in use prior to the node failure Howev...

Page 133: ...zard select Join An Existing Cluster and enter the cluster name c Reboot Node_B Note This step is not required for Windows NET systems because the Cluster Service is installed automatically with Windows 8 On Node_B run the net stop clussvc command from a command prompt 9 Install the NetWorker client software on Node_A 10 From NetWorker User on Node_A select the SYSTEM FILES and SYSTEM STATE save s...

Page 134: ...Legato NetWorker Release 7 0 Disaster Recovery Guide 7 Recovering Multiple Cluster Nodes 134 ...

Page 135: ...tion that you can use to restore a cluster to its original configuration These worksheets are located in the Sun Cluster 3 0 Release Notes Additionally ensure that you regularly back up both physical and virtual NetWorker clients A physical NetWorker client backs up a physical node A virtual NetWorker client backs up a highly available Sun Cluster resource application Examples of applications that...

Page 136: ... depending on whether the NetWorker server is set up as a highly available Sun Cluster resource or the NetWorker server is set up outside of the cluster For detailed installation and configuration instructions for Sun Clusters refer to the Legato NetWorker Installation Guide Solaris Version 4 Restore the physical node s private data using the nwrecover command Private data is data that is not avai...

Page 137: ...re Guide and the server documentation Task 2 Install the Software To install the software 1 Reinstall and reconfigure the operating system and Sun Cluster software on all cluster nodes For detailed instructions refer to the Sun Cluster Installation Guide Important Ensure that you reconfigure the cluster including the disk device groups and resource groups exactly as it was before the disaster 2 Re...

Page 138: ...ailable NetWorker server data as you would a stand alone NetWorker server For information about recovering a NetWorker server see Chapter 3 UNIX Disaster Recovery on page 25 This step recovers the media database resource database and client file indexes all of which are used to recover NetWorker clients 2 Recover the physical and virtual NetWorker clients For information about recovering physical ...

Page 139: ...rding information and backing up the cluster These tasks are described in the following sections Record Information on page 139 Back Up the Cluster on page 140 Record Information This section describes the information required to restore an entire cluster Keep an up to date copy of the following information in a safe place Network settings for each node in the cluster Partition information for the...

Page 140: ...node to the Client resource s Remote Access list c Specify a save set of All for the Client resource A save set of All ensures that filesystems from all nodes are backed up d Create a NetWorker Group resource add the Client resource to this group and schedule the group for regular backups e Perform at least one full backup 2 Optionally back up the stand alone HP Tru64 boot drive on the cluster s p...

Page 141: ...n the SRM console on the node you are restoring down node and set the logical mappings for the node s managed disks and volumes to their original settings To help complete this step use the information that was recorded from the SRM console prior to the disaster Task 3 Partition the Down Node s Boot Drive To partition the down node s boot drive you need the original node s partition information Th...

Page 142: ...ific data includes information such as node licenses and volume definitions that would be difficult and time consuming to replace unless they are recovered Note Perform this task on the down node To recover the node specific data 1 Boot the cluster node boot file genvmunix dkc2 where dkc2 is the cluster disk 2 Use the NetWorker recover command in interactive mode to recover the cluster node data a...

Page 143: ... noforce recover recover where cluster_default_alias is the name of the cluster and member is the member ID of the down cluster node Note When prompted to overwrite files enter N to prevent files from being overwritten 4 Recompile the kernel using the doconfig command Restoring an Entire Cluster This section explains how to recover an entire cluster that has been destroyed Note To help ensure a su...

Page 144: ...and set the logical mappings for each node s managed disks and volumes to their original settings To help complete this step use the information that was recorded from the SRM console prior to the disaster Task 3 Install and Configure the Cluster Software Perform a stand alone installation of Tru64 on the primary node s stand alone boot drive This task requires the cluster information that was rec...

Page 145: ... on page 149 To install NetWorker software 1 Install the same version of the NetWorker server software When prompted during the installation enter the location of the nsr directory as follows nsr For more information about installing NetWorker software refer to the appropriate Legato NetWorker Installation Guide 2 Install any NetWorker patches that were installed prior to the disaster 3 If separat...

Page 146: ... If the autochanger does not support the E option initialize the element status using sjiielm If you are using an autochanger inventory the autochanger using the nsrjb I command This helps determine whether the volumes required to recover the bootstrap are located inside the autochanger Task 6 Locate the Server s Bootstrap Save Set ID Perform this task if you need to locate the bootstrap save set ...

Page 147: ...ot locate the save set ID of the most recent bootstrap on the most recent media run the scanner B command on preceding media to locate the save set ID of the most recent bootstrap 5 When you see the output record both the bootstrap save set ID and the volume label Task 7 Recover the Server s Bootstrap To recover the NetWorker server bootstrap 1 Use the mmrecov command to recover the NetWorker serv...

Page 148: ...started into dev ntape tape0_d1 Once you have loaded the appropriate volume the following message appears Scanning dev ntape tape0_d1 for save set 20076 this might take a while NetWorker software then scans the volume for the appropriate save set and recovers it The NetWorker media database and resource configuration files are recovered when the following message appears If your resource files wer...

Page 149: ... recover the subsequent incremental backups from earliest to latest For example if the dates for the last full backup and the last two incremental backups are as follows Oct 15 last full backup Oct 16 second to last incremental backup Oct 17 last incremental backup then to restore the client file indexes you would enter the following recover S full_SSID iY recover S second_last_incremental_SSID iY...

Page 150: ...er directories mount cluster_root root mnt mount cluster_usr usr mnt usr mount cluster_var var mnt var where mnt is the mount point 2 Restore the cluster data using the recover command in interactive mode as shown in the following example Note The force option is used in this step so that the recovered files overwrite the existing files recover c cluster_default_alias recover cd recover add recove...

Page 151: ...elete cluster members membermember recover force recover relocate mnt recover recover where member is the member ID of any cluster member except node 0 or 1 4 Use the recover command in interactive mode to restore the dev and devices directories for each cluster node as shown in the following example Note The noforce option is used in this step so that recovered files do not overwrite existing fil...

Page 152: ... 5 Unmount the mnt directory unmount mnt var mnt usr mnt 6 Shut down the system and boot the primary node off of its shared HP Tru64 member boot drive 7 Although optional you should recompile the kernel using doconfig on the primary node and then reboot 8 For information about recovering the remaining cluster nodes see Restoring One or More Nodes in a Cluster on page 140 ...

Page 153: ...e node This scenario assumes that the operating system on the participating nodes has failed and must be reinstalled The functionality of the MC ServiceGuard component on the node is also in question How to Recover a Single Cluster Node To recover a single node 1 Install the operating system and the cluster software Configure the volume groups 2 Add the node to the cluster a Click Cluster in the S...

Page 154: ...n the HP UX MC ServiceGuard cluster environment For detailed instructions refer to the Legato NetWorker Installation Guide HP UX Version Task 2 Restore the Cluster Database 1 Select any node in the cluster and run the NetWorker server and client software on that node 2 Re create the cluster configuration and the NetWorker software configuration and control files The default location for the cluste...

Page 155: ...leteconf c cluster1 7 Enter the following command to apply the cluster and package configurations including the NetWorker package to all the nodes within the cluster cd etc cmcluster cmapplycomf C cluster1 ascii P networker pkg conf P other_pkg other_pkg 8 Run the cmgetconf command to save the new cluster or package ASCII configuration file whenever the cluster or package configuration is created ...

Page 156: ...aster recovery refer to the Legato NetWorker Administrator s Guide UNIX Version When you shut down the NetWorker software during this step use cmhaltpkg and not nsr_shutdown as follows cmhaltpkg networker exchange a c dev vg03 mount dev vg03 lvol1 vg031 mv vg031 nsr res vg031 nsr res old mv vg031 nsr res R vg031 nsr res umount vg031 vgchange a n dev vg03 cmmodpkg e networker to restart the NetWork...

Page 157: ...w 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 Le...

Page 158: ...init d FT_DIR config FT_DIR log FT_DIR domain_name node_name 5 Restore or copy the following files from the active node AIX FT_DIR bin envsh FT_DIR bin envcsh if using C shell usr bin nw_ux lc HP UX FT_DIR bin envsh FT_DIR bin envcsh if using C shell opt networker bin nw_ux lc Linux FT_DIR bin envsh FT_DIR bin envcsh if using C shell usr sbin nw_ux lc 6 Start the cluster virtual server on the node...

Page 159: ...irectory Yes or No Yes no Performing a Cluster Wide Recovery This section describes how to perform a complete cluster recovery including reinstalling the operation system on all nodes in the cluster How to Perform a Cluster Wide Recovery Perform the following tasks for a cluster wide recovery Task 1 Install the Software on page 159 Task 2 Restore the Cluster on page 160 Task 3 Configure NetWorker ...

Page 160: ... Determine the save set ID that contains the following cluster configuration and system files If you do not know the save set ID use the scanner device_path command to determine its value as follows scanner device_path tmp savefile 2 1 AIX usr bin nw_ux lc FT_DIR config FT_DIR log FT_DIR domain_name node_name FT_DIR bin envsh envcsh for C shell HP UX opt networker bin nw_ux lc FT_DIR config FT_DIR...

Page 161: ...are as a highly available application 1 Run the envsh script For example AIX cd usr lpp LGTOlcxx bin envsh or source envcsh if using C shell HP UX cd opt LGTOlcxx bin envsh or source envcsh if using C shell Linux cd opt LGTOlcxx bin envsh or source envcsh if using C shell 2 Run the networker cluster script If you have already restored the nw_ux lc file answer No to the following prompt Do you wish...

Page 162: ...edia database and resource files 2 Use the recover command to recover the following initialization directories AIX etc rc HP UX etc rc Linux etc init d etc rc d For detailed instructions on using the recover and mmrecov commands refer to the man pages or the Legato Command Reference Guide On Each of Remaining Node in the Cluster To restore data on each of the remaining node in the cluster 1 Instal...

Page 163: ...sk 5 Start the Cluster Software on Each Node On each of the remaining nodes in the cluster 1 Start the cluster virtual server as follows cd FT_DIR bin envsh ft_startup domain domain_name If the virtual server fails to start on the node because of an outdated sites file copy the following file from the active node FT_DIR config domain_name_sites 2 Run the networker cluster script If you have alread...

Page 164: ...te the volume group by bringing the logical volume group datasource online b Mount the shared disk that contains the shared nsr directory by bringing the shared disk datasource online Note You can also activate and mount the logical volume group and the shared disk using UNIX commands 3 Move the newly recovered resource directory nsr res R to the current resource directory as follows mv nsr_shared...

Page 165: ...allation and configuration instructions refer to the following documentation Legato NetWorker Installation Guide AIX Version Legato NetWorker Administrator s Guide UNIX Version HACMP for AIX documentation Recovering a Single 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 ...

Page 166: ...the operating system on all nodes in the cluster Note It is unlikely that all the nodes in a cluster would fail simultaneously but if this does occur follow this procedure How to Perform a Cluster Wide Recovery Use the following tasks to perform a cluster wide recovery Task 1 Install the Software on page 166 Task 2 Restore the Cluster Database on page 166 Task 3 Start the Cluster on page 167 Task ...

Page 167: ...b Use the scanner S commands to restore the cluster database as follows scanner S saveset_id device_path x uasm i Y rv etc objres scanner S saveset_id device_path x uasm i Y rv usr es sbin cluster etc objres scanner S saveset_id device_path x uasm i Y rv usr es sbin cluster etc vg 3 From the restored node in the cluster use the SMIT utility to synchronize the cluster topology and databases Task 3 ...

Page 168: ...e is running To complete the recovery of the resource database a Stop the NetWorker resource group using the SMIT utility b Mount the shared disk containing the nsr directory c Save a copy of the existing resource database as follows mv nsr res nsr res orig d Place the recovered resource database files into the res directory as follows mv nsr res R nsr res e Unmount the shared disk containing the ...

Page 169: ...start attribute enabled administrator The person normally responsible for installing configuring and maintaining NetWorker software Administrators group A Windows NT and Windows 2000 user group whose members have all the rights and abilities of users in other groups plus the ability to create and manage all the users and groups in the domain Only members of the Administrators group can modify Wind...

Page 170: ...archive pool A volume pool composed exclusively of archive save sets Archived save sets are in a different format than regular backup save sets and must be maintained on separate media archive volume A tape or other storage medium used to store NetWorker archive data as opposed to a backup volume ASM An abbreviation for application specific module An ASM is a program that when used in a directive ...

Page 171: ...ly label mount and overwrite a volume it considers unlabeled Volumes that are eligible for reuse are also automatically recycled backup The writing of saved data to a volume backup cycle The period of time from one level full backup to the next level full backup backup group See group backup level See level Backup Operators group A group of Microsoft Windows users who can log on to a domain from a...

Page 172: ...sets You can clone individual save sets or the entire contents of a backup volume Cloning is different from a simple copy operation carried out on an operating system or hardware device It is indexed and tracked by NetWorker software in both the client file index and the media database clone pool A pool of volumes composed exclusively of cloned data Three types of clone pools can be used backup cl...

Page 173: ...which allows NetWorker software to recognize shared drives device 1 A storage unit that reads from and writes to storage volumes see volume A storage unit can be a tape device optical drive autochanger or file connected to the server or storage node 2 When DDS is enabled refers to the access path to the physical drive DFS An abbreviation for Distributed File System root or child node DFS is a Micr...

Page 174: ...es for additional features or products for example autochanger support are referred to as add on enablers exit code An indicator that specifies whether a backup or recovery session succeeded An exit code of zero 0 indicates the session completed successfully A nonzero exit code indicates the session did not complete successfully expiration date The date when the volume changes from read write to r...

Page 175: ... instance of the command is identical to the original command and is referred to as a subprocess Once each subprocess is created they are run simultaneously full backup See level grooming The NetWorker process of removing the original files from a local disk after a successful archive operation group A client or group of clients configured to start backing up files to the NetWorker server at a des...

Page 176: ...nt A NetWorker client that is not permanently bound to a physical machine but is instead managed by a cluster manager It can be bound to more than one physical machine in the cluster and can own its own data disks It is also referred to as a logical or virtual client local host The node on which the client or server program is running logical server The term used in conjunction with HP TruCluster ...

Page 177: ...ker feature that permits data from more than one save set to be simultaneously written to the same storage device NDMP An abbreviation for Network Data Management Protocol which is a storage management client server protocol for enterprise wide backup of network attached storage NetWorker software uses NDMP to provide connections to computers with NDMP data modules for tape operations allowing a s...

Page 178: ...Cluster and virtual server Microsoft packet filtering A method of firewall protection that looks at each packet entering or leaving the network and accepts or rejects it based on user defined rules See also firewall parallelism A NetWorker feature that enables the NetWorker server to either back up save sets from several clients or many save sets from one client at the same time Parallelism is als...

Page 179: ...entries for the save sets to remain in the media database recover A recovery method that re creates an image of the client filesystems and database on the NetWorker server recyclable save set A save set whose browse and retention policies have been reached therefore the save set has been removed from the media database recyclable volume A volume whose data has passed both its browse and retention ...

Page 180: ...licy that determines how long save set entries are retained in the NetWorker server s media database retrieve The process of locating and copying back files and directories that NetWorker software has archived retry mechanism The action NetWorker software performs when client operations fail This situation might occur when the rate of transmission is either low or nonexistent By using this mechani...

Page 181: ...save stream originates from a single save set server The computer on a network that runs the NetWorker server software contains the online indexes and provides backup and recovery services to the clients and storage nodes on the same network server index A database containing information about the server s files that have been backed up during scheduled backups Also known as the server s client fi...

Page 182: ...ving the data from its original location stand alone In a cluster environment if the NetWorker clustersvr file is missing at the binary location the NetWorker server will start in noncluster mode also called stand alone mode The stand alone mode is sometimes referred to as the server backing up itself stand alone device A storage device that contains a single drive for backing up data storage devi...

Page 183: ...or a virtual client virtual server The term used by Microsoft to denote a cluster server Also known as an agent Sun a logical server HP TruCluster and a package HP UX volume A unit of storage media such as a magnetic tape an optical disk or a file A storage device reads from and writes to volumes which can be physical units for example a labeled tape cartridge or logical units for example optical ...

Page 184: ...Legato NetWorker Release 7 0 Disaster Recovery Guide Glossary 184 Glossary ...

Page 185: ... backup importance of scheduling 21 testing UNIX 39 42 45 Windows 81 87 boot file genvmunix HP TruCluster 142 bootstrap locating save set ID of NetWare 97 UNIX 34 Windows 70 recovering NetWare 97 UNIX 36 Windows 72 browse policy Windows 69 C chkdsk Windows 2000 or NET 132 client See NetWorker client client file indexes recovering NetWare 97 UNIX 38 Windows 76 clu_add_member HP TruCluster 142 clu_c...

Page 186: ...vering shared disk 113 recovering single node 111 cmapplycomf HP UX cluster 155 cmdeleteconf HP UX cluster 155 cmgetconf HP UX cluster 155 cmhaltpkg HP UX cluster 156 cmmodpkg HP UX cluster 156 cmruncl HP UX cluster 155 cmrunnode HP UX cluster 153 commands AAM for AIX HP UX Linux envsh 161 163 scanner 160 scanner S x uasm rv i Y 161 HACMP for AIX mmrecov 168 nrsck L7 168 recover 168 scanner B 167 ...

Page 187: ... nsrck L7 49 77 nsrjb 75 nsrjb lnv S 48 nsrjb lnv S f 71 72 nsrjb lv 49 nsrjb lv S 48 69 75 nsrjb vHE 48 49 68 74 nsrmm d 73 77 nsrmmdbasm 74 ping 60 65 recover c 59 recover exe 58 scanner 71 scanner B 49 71 sjiielm 69 75 uasm 74 Windows 2000 or NET cluster chkdsk 132 net start clussvc 131 133 net stop clussvc 130 133 Windows NT 4 0 fixquorum 124 regedit 123 computer data recovering See recovering...

Page 188: ...key information before a disaster 22 H HACMP for AIX cluster restoring a single node 165 restoring all nodes 166 hard drive replacing NetWare 90 replacing UNIX 27 replacing Windows 52 HP TruCluster recovering a single node 140 recovery prerequisites 139 See also cluster HP TruCluster HP UX Cluster recovering all nodes 154 recovering single node 153 HP UX recovering AAM for HP UX 157 hwmgr view HP ...

Page 189: ...mminfo mv Windows 54 66 mminfo s mv Windows 83 mmrecov HACMP for AIX 168 mmrecov UNIX 36 37 mmrecov Windows 49 50 68 69 72 74 81 mount HP UX cluster 156 mt UNIX 31 multiple disaster recoveries performing in UNIX 26 performing in Windows 51 N ndir NetWare 90 101 105 109 NDS data recovering 100 NDS partition recovering replicated 102 net start clussvc Windows 2000 or NET 131 133 net stop clussvc Win...

Page 190: ... 49 77 nsrck L7 Windows 77 nsrck UNIX 36 38 nsrck Windows 72 nsrd UNIX 34 37 nsrexecd UNIX 34 37 nsrim X HP TruCluster 149 nsrinfo HP TruCluster 149 nsrjb HE UNIX 38 nsrjb I HP TruCluster 146 nsrjb Inv S f HP TruCluster 147 nsrjb Inv S Windows 48 nsrjb Iv S Windows 48 75 nsrjb Iv Windows 49 nsrjb l UNIX 34 nsrjb lnv S f UNIX 35 nsrjb lnv S f Windows 71 72 nsrjb lv S Windows 69 nsrjb lv UNIX 38 nsr...

Page 191: ...re 91 UNIX 28 Windows 60 Windows NT 4 0 57 summary of 22 Sun cluster recovery 135 product documentation 15 program NetWorker Utilities for NetWare 97 Q quorum disk recovering Windows 2000 or NET 128 recovering Windows NT 4 0 Cluster 116 R recover c HP TruCluster 142 150 151 recover c Windows 59 recover S iY HP TruCluster 149 recover HACMP for AIX 168 recover exe Windows consideration 58 recovering...

Page 192: ...ws NT 57 removable storage autochanger restoring 80 renaming NetWorker configuration files NetWare 99 UNIX 37 38 Windows 74 renaming the resource directory AAM for AIX HP UX Linux 164 repair disk creating Windows NT 57 repair disk using Windows NT 59 repairing Windows NT 4 0 OS 57 replacing hard drive NetWare 90 UNIX 27 Windows 52 replacing the quorum disk Windows NT 4 0 Cluster 116 replicated NDS...

Page 193: ...l support 17 testing backup and recovery NetWare 101 UNIX 39 42 45 Windows 81 87 testing OS NetWare 94 UNIX 31 Windows 65 TruCluster recovering 139 See also cluster HP TruCluster U uasm Windows 74 umount HP UX cluster 156 UNIX configuring operating system 30 installing operating system 28 30 locating bootstrap 34 prerequisites summary 23 recovering bootstrap 36 recovering NetWorker client 43 recov...

Page 194: ...ing a hard drive 52 setting browse policy 69 retention policy 69 summary of disaster recovery 48 51 Windows Cluster 2000 or NET recovering multiple nodes 132 recovering quorum disk 128 recovering server 127 recovering single node 129 recovery prerequisites 127 Windows Cluster NT 4 0 recovering a shared disk 113 recovering all nodes 119 recovering cluster configuration 117 recovering one cluster no...

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