IBM Tivoli Storage Manager for UNIX and Linux: Backup-Archive ...

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Backup ImageThe backup image command creates an image backup of one or more volumes onyour system.Notes:1. For the Linux clients, image backup is only supported on partitions with id0x83 or logical volumes created with the Linux Logical Volume Manager.Backing up other partitions, such as extended partitions that contain mountedfile systems or database data, can produce inconsistent backup data if the datachanges during the image backup operation.2. The usage of GPFS snapshot, and image backup is not supported for GPFS filesystems on Linux x86/x86_64, Linux on POWER and Linux zSeries.3. Image backup of the Sun QFS and IBM TotalStorage SAN File Systems is notsupported.4. The Tivoli Storage Manager API must be installed to use the backup imagecommand.The Tivoli Storage Manager client must support the raw device type on the specificplatform to perform an image backup of a raw device. You can only perform animage backup on local devices. Clustered devices or file systems as well as devicesor file systems shared between two or more systems are not supported. If youwant to perform an image backup for a file system mounted on a raw device, theraw device must be supported. See “Volume device type support for an imagebackup” on page 103 for specific information about supported devices for thebackup image command.Use the include.image option to include a file system or logical volume for imagebackup, or to specify volume-specific options for image backup.The backup image command uses the compression option value specified in thedsm.sys. You can also specify the compression option with the backup imagecommand.Static, dynamic, and snapshot image backupThe traditional image backup prevents write access to the volume by other systemapplications during the operation. Use the imagetype=dynamic option to back upthe volume as is without remounting it read-only. Corruption of the backup canoccur if applications write to the volume while the backup is in progress. In thiscase, run fsck after a restore.For Linux x86/x86_64 clients only: Tivoli Storage Manager performs a snapshotimage backup of file systems residing on a logical volume created by the LinuxLogical Volume Manager during which the volume is available to other systemapplications. Snapshot image backup requires a Version 5.1 Tivoli Storage Managerserver.You can use the imagetype option with the backup image command or theinclude.image option to specify whether to perform a static, dynamic, or snapshotimage backup. See “Imagetype” on page 265 for more information.1. A snapshot of the logical volume is taken.2. Old data blocks containing changes made to the volume during the backup aresaved into the cache files.3. The cache files are backed up to the server and the changes are applied to thevolume image when you restore the volume.406 IBM Tivoli Storage Manager for UNIX and Linux: Backup-Archive Clients Installation and User’s Guide
The Linux Logical Volume Manager allows the creation of a snapshot of a logicalvolume while the logical volume itself is still online. The snapshot is created insidethe same volume group as the source logical volume. You must ensure that thevolume group provides enough free disk space to create the snapshot. Thesnapshot contains the old data blocks while the modified data is stored in thesource logical volume. Use the snapshotcachesize option with the backup imagecommand, in the dsm.opt file, or with the include.image option to specify anappropriate snapshot size so that all old data blocks can be stored while the imagebackup occurs. A snapshot size of 100 percent will ensure a valid snapshot. See“Snapshotcachesize” on page 350 for more information.Utilizing image backup to perform file system incrementalbackupThere are two methods of utilizing image backups to perform efficient incrementalbackups of your file system. These backup methods allow you to performpoint-in-time restore of your file systems and improve backup and restoreperformance. You can perform the backup only on formatted volumes; not on rawlogical volumes. You can use one of the following methods to perform imagebackups of volumes with mounted file systems.Method 1 Using image backup with file system incremental:1. Perform a full incremental backup of the file system, for example:dsmc incremental /myfilesystem2. Perform an image backup of the same file system, for example:dsmc backup image /myfilesystem3. Periodically, perform incremental backups, for example:dsmc incremental /myfilesystemYou must follow these steps in the order shown to ensure that the serverrecords additions and deletions accurately.4. The following command restores the file system to its exact state as of the lastincremental backup:dsmc restore image /myfilesystem -incremental -deletefilesDuring the restore, the client does the following:v Restores the most recent image on the server.v Deletes all of the files restored in the previous step which are inactive on theserver. These are files which existed at the time of the image backup, butwere subsequently deleted and recorded by a later incremental backup.v Restores new and changed files from the incremental backups.If you do not follow the steps exactly, two things can occur:v After the original image is restored, all files backed up with the incrementalcommand are restored individually.v If you perform a backup image before performing an incremental, files deletedfrom the original image are not deleted from the final restored file system.Method 2 Using image backup with image incremental mode:1. Perform an image backup of the same file system, for example:dsmc backup image /myfilesystem2. Perform an incremental image backup of the file system, for example:dsmc backup image /myfilesystem -mode=incrementalChapter 10. Using commands 407
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Tivoli® Storage Manager for UNIX a
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NoteBefore using this information a
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viii IBM Tivoli Storage Manager for
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89. Query WAS command: Related opti
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Syntax diagram description ExampleR
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Downloading or ordering publication
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v The Tivoli Storage Manager server
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Standard) 128-bit data encryption t
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volume snapshot, only to manage dat
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xxxii IBM Tivoli Storage Manager fo
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Notes:1. For more information about
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Client componentsv Backup-archive c
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Communication methodsTo use thiscom
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If you update the dsm.sys file whil
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To view or modify an options file,
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characters. If you are using multi-
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|where /home/davehil/dsm.opt is the
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When the scheduler is started, it q
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To manually stop the client schedul
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defined with the server option tcpp
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Associating your client node with a
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include-exclude statements in the p
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Including and excluding groups of f
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Controlling symbolic link processin
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1. Files are checked; directories a
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68 IBM Tivoli Storage Manager for U
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Starting a GUI sessionmachine, spec
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For example, to archive a file name
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2. In the Control Panel, double-cli
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Sorting file lists using the Tivoli
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Other sources of online helpAn anon
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Table 29. Planning your backups (co
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lanfreeshmportSpecifies the unique
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|||Encrypting data during backup or
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v The Solaris backup-archive client
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screen on the backup window, or use
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Setting a virtual mount pointIf you
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Table 32. Command line backup examp
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Suggestions:v All agent nodes in th
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3. The administrator defines the no
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Performing an image backupRoot User
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||Table 33. Volume device type supp
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3. Periodically, perform full image
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Performing an image backup using th
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Note: If it is necessary to close t
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Table 37. Client command line infor
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Understanding how files are managed
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Attention: If you do not back up an
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* (Asterisk) Zero or more character
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Restoring data using the GUIan inac
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For example, to restore all the fil
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For more information on using the c
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||v If for some reason a restored i
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Table 41. NAS options and commandsO
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Restore: Additional considerationsT
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dsmc restore -virtualnodename=nodeo
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142 IBM Tivoli Storage Manager for
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To filter:a. Enter your filter crit
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v Register each of the nodes in the
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Use the archsymlinkasfile option to
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Table 45. Command line examples of
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Table 46. Client return codes and t
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Using management classes and copy g
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Table 47. Default values in the sta
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Attention: Be careful when you sele
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Processing follows these steps:1. T
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v You specify a different managemen
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TCP/IPYou can also use the lanfreec
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DEFAULTServerserver2SErvername serv
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Table 52. Restore and retrieve proc
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Table 52. Restore and retrieve proc
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Format optionsYou can use the follo
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Transaction processing optionsThese
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Tivoli Storage Manager also include
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Table 61. Client command options (c
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||||Table 61. Client command option
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|Table 62. Options that are valid o
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ArchsymlinkasfileSupportedOptionsSy
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ExamplesOptions file:asnodename myc
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ClassThe class option specifies whe
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CollocatebyfilespecSupportedOptions
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CommmethodAuthorized UserSupportedO
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CommrestartdurationSupportedOptions
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CompressalwaysSupportedOptionsSynta
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ExamplesYes Files are compressed be
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DateformatThe dateformat option spe
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This option is valid on the initial
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DeletefilesUse the deletefiles opti
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ExamplesCommand line:dsmc archive "
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DirmcAuthorized UserSupportedOption
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DiskbuffsizeAuthorized UserSupporte
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||Command line:Does not apply.226 I
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Attention: If you are running GPFS
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ExamplesOptions file:domain /tst /d
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Domain.nasThe domain.nas option spe
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EditorThe editor option turns the c
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Command line:-enablelanfree=yesThis
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EncryptkeyAuthorized User||||The en
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ErrorlogmaxAuthorized UserSupported
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ErrorlogretentionSupportedOptionsSy
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Exclude optionsAuthorized UserThe e
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ParametersExamplespatternSpecifies
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FilelistUse the filelist option wit
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FilenameUse the filename option wit
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FollowsymbolicSupportedOptionsSynta
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FromnodeThe fromnode option permits
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FromtimeUse the fromtime option wit
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GroupsAuthorized UserThe groups opt
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HttpportAuthorized UserSupportedOpt
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Examplesvolume is unmounted and rem
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InclexclAuthorized UserSupportedOpt
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substantial amount of space on the
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IncrbydateUse the incrbydate option
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LanfreecommmethodSupportedOptionsSy
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LanfreeshmportSupportedOptionsSynta
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LocalbackupsetSupportedOptionsSynta
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MailprogAuthorized UserSupportedOpt
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ManagedservicesAuthorized UserThe m
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MaxcmdretriesSupportedOptionsSyntax
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NasnodenameSupportedOptionsSyntaxTh
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ExamplesOptions file:nodenamecougar
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PasswordThe password option specifi
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v If the user enters the node name
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PickThe pick option creates a list
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PittimeUse the pittime option with
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ExamplesOptions file:postschedulecm
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Preschedulecmd/PrenschedulecmdAutho
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PreservelastaccessdateAny applicati
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PreservepathThe preservepath option
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This command:dsmc res /fs/h1/m1/ /u
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QueryschedperiodSupportedOptionsSyn
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RemoveoperandlimitSupportedSyntaxTh
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ExamplesOptions file:replace allCom
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SupportedOptionsSyntaxresourceutili
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RevokeremoteaccessSupportedOptionsS
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SchedlogmaxAuthorized UserSupported
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SchedlogretentionAuthorized User|Th
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ScrollpromptThe scrollprompt option
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ServernameIn your dsm.sys file, the
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SessioninitiationAuthorized UserUse
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ShmportAuthorized UserSupportedOpti
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SnapshotcachesizeAuthorized UserUse
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exclude statements regardless of th
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Page 404 and 405: ExamplesFor AIX, HP-UX, and Solaris
Page 406 and 407: ExamplesOptions file:include.fs.nas
Page 408 and 409: TotimeUse the totime option with th
Page 410 and 411: TypeUse the type option with the qu
Page 412 and 413: V2archiveUse the v2archive option w
Page 414 and 415: VerifyimageUse the verifyimage opti
Page 416 and 417: VirtualmountpointSupportedOptionsSy
Page 418 and 419: VirtualnodenameThe virtualnodename
Page 420 and 421: WasexphomeTo back up the WebSphere
Page 422 and 423: WasndhomeUse the wasndhome option i
Page 424 and 425: WastypeUse the wastype option with
Page 426 and 427: WebportsThe webports option enables
Page 428 and 429: Table 65. Commands (continued)Comma
Page 430 and 431: Use interactive mode when you want
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Page 434 and 435: Pressing the Up arrow key displays
Page 436 and 437: ArchiveThe archive command archives
Page 438 and 439: Backup GroupAuthorized UserUse the
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Page 444 and 445: Backup NASThe backup nas command cr
Page 446 and 447: Task Perform the NAS image backup o
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Page 452 and 453: Delete ArchiveSupportedSyntaxThe de
Page 454 and 455: Delete BackupThe delete backup comm
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Page 458 and 459: ►► Delete Filespaceoptions►
Page 460 and 461: Table 76. Delete Group command: Rel
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Page 464 and 465: IncrementalThe incremental command
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Page 468 and 469: Table 78. Incremental command: Rela
Page 470 and 471: SupportedSyntaxClientsThis command
Page 472 and 473: Monitor ProcessSupportedSyntaxThe m
Page 474 and 475: Attention: Specifying -traverse doe
Page 476 and 477: Query ArchiveSupportedSyntaxThe que
Page 478 and 479: |||Query BackupThe query backup com
Page 480 and 481: Task Query file system images from
Page 482 and 483: ExamplesLOCation=Specifies where Ti
Page 484 and 485: Table 82. Query Filespace command:
Page 486 and 487: Table 83. Query Group command: Rela
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Query MgmtclassSupportedSyntaxThe q
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Query OptionsSupportedSyntaxUse the
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Query ScheduleSupportedSyntaxThe qu
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Query SysteminfoSupportedSyntaxUse
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Query WASAuthorized UserSupportedSy
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|||||||RestoreThe restore command o
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Table 90. Restore command: Related
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Restore BackupsetThe restore backup
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Examplestape deviceSpecifies the na
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Restore GroupAuthorized UserUse the
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|||||||Restore ImageThe restore ima
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Examplesv If the destination volume
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ParametersoptionsTable 94. Restore
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Notes:SupportedSyntax1. For proper
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RetrieveThe retrieve command obtain
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ScheduleAuthorized UserThe schedule
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SelectiveThe selective command back
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usr/dir1/sub1 directory tree from t
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Examples/* gives access to all dire
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Set WaspasswordRoot UserSupportedSy
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schedule action is required to star
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useful if you want to use specific
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password by running a simple Tivoli
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It is recommended that you separate
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Inspecting the Client Schedule LogT
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Installing the backup-archive clien
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v Set the managedservices statement
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Syntax for stanza settings:JournalS
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|||||amount of change activity on a
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Licensees of this program who wish
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Other company, product and service
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archive retention grace period. The
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dynamic. A copy group serialization
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LAN-free data transfer. The movemen
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selective backup. A function permit
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Attention (continued)Using the aste
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client optionsdisplay current setti
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deletingindividual archives from se
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getting started (continued)web clie
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Linux for zSeries clientclient comp
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options (continued)inclexcl 268incl
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Recommendations (continued)setting
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setting environment variablesAPI, U
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Wwasexphome option 386washome optio
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