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

v In the Restore Options window, you can choose to restore the image only or theimage and incremental directories files. If you choose Image Only, you willrestore the image from your last image backup only. This is the default.If you ran incremental-by-date image backup on a volume or image backups ona volume with incrementals, you can choose the Image plus incrementaldirectories and files option. If you choose Image plus incremental directoriesand files, you can also select Delete inactive files from local to delete theinactive files that are restored to your local file system. If incremental-by-dateimage backup was the only type of incremental backup you performed on thefile system, deletion of files will not occur.Attention: Be absolutely sure that you need to perform an incremental restorebecause it will replace your entire file system with the image from the serverand then restore the files that you backed up using the incremental imagebackup operation.Performing an image restore using the command lineUse the restore image command to restore an image using the Tivoli StorageManager command line client. See “Restore Image” on page 476 “Verifyimage” onpage 380, and “Imagetofile” on page 264 for more information.|||||||||||||||||||||||||||||Restoring an image to fileAll LVM volumes contain Logical Volume Control Block (LVCB) on the first sector(512 bytes) of the volume which contains volume specific meta-data and should bepreserved by applications using the volume. When performing image backup,Tivoli Storage Manager backs up LVCB, but on restore, it only restores the data(skipping LVCB), in order to preserve the original LVCB of the destination volume.When performing image restore to file, entire volume contents, including LVCB,are restored to file. When you copy the file containing image back onto a LVMvolume, you will need to skip LVCB from both the file and destination volume.The following dd command can be used for this purpose.dd if= of=/dev/ bs=512 skip=1 seek=1The above command sets the block size to 512 bytes, which will make copyingvery slow. It is better to use bs=1m or similar. Here is a faster (but morecomplicated) way to copy image data:1. Save the original first sector to a file:dd if=/dev/ of=firstblk.tmp bs=512 count=12. Copy the restored image:dd if= of=/dev/ bs=1m3. Restore the original first sector:dd if=firstblk.tmp of=/dev/ bs=512 count=1Performing an image restore using the GUIUse the following procedure to restore an image of your file system or raw logicalvolume:1. Click Restore from the main window. The Restore window appears.2. Expand the directory tree.3. Locate the object in the tree named Image and expand it. Click the selectionbox next to the image you want to restore. You can obtain detailed informationabout the object by highlighting the object and selecting View → File Details...from the main window or click the View File details button.Chapter 5. Restoring your data 129