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disk dump tools and restore utilities

dump can back up an entire system or perform incremental backups, saving changed files only since the last backup. Options supported include specifying the size and length of storage media. The backup storage device is usually a tape device or another hard disk partition. SCSI tape devices labeled with prefix st with a number attached like st0. For the device on another system on a network – a hostname entered before the device name delimited with a colon like


dump utility uses dump levels to determine the degree to a backup system.


Recovering Backups using restore command

It restores an entire file system or particular files or directories from a backup archive and copies them to the current working directory. It would generate sub-directories as needed.

mkfs /dev/hda2
mount /dve/hda2 /ananova
cd /ananova
restore -ivf /dev/tape


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