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Special Edition Using® Solaris™ 9 by Tanuj Jain, Radhika Girisan

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Creating and Restoring Backups

Solaris OE has several built-in command line backup utilities, such as cp, tar, cpio, and so on. The most widely used by system administrators is ufsdump, for a number of reasons:

  • Your backup can span multiple tapes, if need be.

  • There is no constraint in terms of file types.

  • Permissions, ownership, and timestamps can be restored, and backups can be performed incrementally.

However, there are some disadvantages:

  • Each file system has to be dumped individually.

  • ufsdump cannot dump file systems that are mounted over NFS.

CAUTION

When copying files, ensure that the file systems are in the inactive mode. This ensures a consistent output of the ufsdump and the correct and complete restoration of the file systems.

The following ...

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