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  1. Home
  2. Veritas NetBackup™ Snapshot Client Administrator's Guide
  3. FlashBackup configuration
  4. Configuring FlashBackup policy for backward compatibility (UNIX only)
  5. About the cache partition
Veritas NetBackup™ Snapshot Client Administrator's Guide

About the cache partition

The snapctl driver and VxFS snap driver are copy-on-write snapshot methods that require a cache partition. For FlashBackup clients before NetBackup 5.0, the cache partition was specified in the policy's Files tab as a CACHE = raw_partition entry. (The Files tab is now called the Backup Selections tab.)

Note:

CACHE entries are allowed only when the policy's Perform snapshot backups option is deselected. If Perform snapshot backups is selected, NetBackup attempts to back up the CACHE entry and the backup fails.

Figure: Backup Selections list with CACHE entry

Backup Selections list with CACHE entry

All entries must specify the raw device, such /dev/rdsk/c0t0d0s1. Do not use the actual file name; you must use the link form of cxtxdxsx.

More Information

Requirements for the cache partition

Directives for multiple data streams

Configuring FlashBackup policy for backward compatibility (UNIX only)

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