IBM E16RMLL-I Implementation Guide - Page 676
Stacking backup images, Recreating LVM structures and restoring data
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Stacking backup images SysBack provides the ability to stack multiple backups on a single tape. Figure 20-5 shows the image sequence on tape for a stack full system (installation image) backup. 1 2 3 4 5 6 7 8 N N N Bosboot Image Install Image Dummy TOC Image Sysback Programs Image Sysback TOC Image / (hd4) /usr (hd2) Backup Backup File system Backup .......... File system Backup "Raw" Logical Volume Backup .......... "Raw" Logical Volume Backup Block Size 512 Backup Sequence Number 1 Sysback TOC Image X X X X X X / (hd4) /usr (hd2) Backup Backup File system Backup .......... File system Backup "Raw" Logical Volume Backup .......... "Raw" Logical Volume Backup Backup Sequence Number 2 Figure 20-5 Stacked full system (installation image) backup tape layout Recreating LVM structures and restoring data SysBack provides the ability to do the following operations: Restore data only. Recreate LVM structures only. Recreate LVM structures and restore data all in the same process. You can restore and recreate either an entire backup image, or any subset of data on a backup. For example, considering a volume group backup, you can: Restore the entire volume group and data. Recreate only the volume group LVM structures. Restore one or more individual file systems. Recreate only the LVM structure of one or more file systems. Restore one or more individual logical volumes. Recreate only the LVM structure of one or more logical volumes. Restore individual files or directories. 646 IBM Tivoli Storage Manager Implementation Guide
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