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

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

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ackup group -filelist=/home/dir1/filelist1 -groupname=group1-virtualfsname=/virtfs -mode=fullRelated in<strong>for</strong>mation“Include options” on page 332“Query Group” on page 487“Restore Group” on page 510“Delete Group” on page 463“Query Filespace” on page 485<strong>Backup</strong> ImageThe backup image comm<strong>and</strong> creates an image backup of one or more volumes onyour system. These volumes can be <strong>for</strong>matted FAT, FAT32, NTFS, or un<strong>for</strong>mattedRAW volumes. If a volume is NTFS-<strong>for</strong>matted, only those blocks used by the filesystem will be backed up. If you set the imagegapsize option to 0, all blocks,including unused blocks at the end of the volume, will be backed up.If you specify an AIX JFS2 file system <strong>for</strong> image backup, only those blocks used bythe file system will be backed up. If you set the imagegapsize option to zero, allblocks, including blocks at the end of the volume, will be backed up.Note:1. AIX only: By default, snapshot-based image backup is enabled <strong>for</strong> JFS2volumes. You can disable this by using the option snapshotproviderimage=NONE.2. For the <strong>Linux</strong> clients, image backup is only supported on partitions with id0x83 or logical volumes created with the <strong>Linux</strong> Logical Volume <strong>Manager</strong>.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.3. <strong>Backup</strong> image is not supported on any GPFS file system.4. The <strong>Tivoli</strong> <strong>Storage</strong> <strong>Manager</strong> API must be installed to use the backup imagecomm<strong>and</strong>.5. When you change the attribute of a JFS2 file system to an HSM-managed filesystem, an image backup is not done <strong>for</strong> that file system.Important:The last incremental backup time refers to the server time <strong>and</strong> the file modificationtime refers to the client time. If the client <strong>and</strong> server time are not synchronized, orthe client <strong>and</strong> server are in different time zones, this affects incremental-by-datebackup <strong>and</strong> image backup with mode=incremental.The client backs up the files whose modification date <strong>and</strong> time (client time) is laterthan the date <strong>and</strong> time of the last incremental backup of the file system on whichthe file resides (server time).If the server time is ahead of the client time, an incremental-by-date operation orimage backup with mode=incremental will skip the files, which had been created or448 <strong>IBM</strong> <strong>Tivoli</strong> <strong>Storage</strong> <strong>Manager</strong> <strong>for</strong> <strong>UNIX</strong> <strong>and</strong> <strong>Linux</strong> <strong>Backup</strong>-<strong>Archive</strong> Clients Version 6.1: Installation <strong>and</strong> User’s Guide

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