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  1. Home
  2. Veritas NetBackup™ Snapshot Client Administrator's Guide
  3. Configuration of software-based snapshot methods
  4. Software-based snapshot methods
  5. About VxFS_Snapshot
Veritas NetBackup™ Snapshot Client Administrator's Guide

About VxFS_Snapshot

The VxFS_Snapshot method is for making copy-on-write snapshots of local Solaris or HP clients. Off-host backup is not supported with this snapshot method.

Note the following:

  • VxFS_Snapshot supports the FlashBackup policy type only.

  • The VxFS_Snapshot method can only be used to back up a single file system. If multiple file systems are specified in the policy's Backup Selections list when you use this method, the backup fails.

  • In a FlashBackup policy, if the Backup Selections list contains CACHE= entries, FlashBackup does support the backup of multiple file systems from a single policy. For each file system, a separate cache must be designated with the CACHE= entry. Make sure you create a separate policy for each file system.

    See Configuring FlashBackup policy for backward compatibility (UNIX only).

  • You must designate a raw partition to be used for copy-on-write cache.

    Raw partition example:

    Solaris:

       /dev/rdsk/c1t0d0s3

    Or

       /dev/dsk/c1t0d0s3

    HP:

       /dev/rdsk/c1t0d0

    Or

       /dev/dsk/c1t0d0

    See Cache device requirements.

    See Entering the cache.

  • VxFS_Snapshot is the default snapshot method for FlashBackup clients running HP, when Perform snapshot backup is not selected for the backup policy.

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