Dump

There is a version of dump for Linux. RedHat 5.0 that involves an RPM package that involves dump. It should be installed if the system does not have dump and restore installed. RedHat provides a couple of tools to install these packages: glint and rpm. glint is the GUI tool for maintain packages. It Refer to the RedHat documentation for more details on using these tools.

The dump package can be found under the Utilities /System folder. Before the dump package is installed the rmt package.

dump

dump is commonly used to backup an whole partition (file system). If provides a list of filenames, dump will back up the individual files.

Syntax:

dump [ options [ arguments ] ] file system dump [ options [ arguments ] ] filename

Arguments have to be appearing after all options and have to appear in a set order.

By Using dump command a user can take full or incremental backups the dump works on the concept of levels it uses 9 levels. The dump level of 0 (full backup) means in which all files will be backed up. A dump level of 1...9 (incremental) means in which all files which have modifies since the last dump of a lower level will be backed up.

If the -u option is particular with the dump command it will update the dump information in the /etc/dumpdates file that will help the system to perform the next incremental backup. This file, after the dump performed, holds the date and time of backup and the level specified for the backup.

Options

0-9       -   it refer Dump level.

a archive-file  -    Refers the Archive-file will be a table of contents of the archive

f dump-file     -    Specifies the file (commonly a device file) to write the dump to, a - specifies standard output

u          -    It will Updates the dump record (/etc/dumpdates)

v          -    Rewinds the tape and verifies after writing each volume. A file system must not be used in during dump or the verification.