NSR pool

The NSR pool resource describes each Backup pool, that determines a save sets browse and retention policies.This resource determines where volumes save sets reside based upon their characteristics.

There are four types of pools:

• Backup pools accept data from savegroup and manual backups.

• Archive pools accept archive data.

• Backup clone pool, where data from a backup pool can be cloned to.

• Archive clone pool, where archive data can be cloned to.

  There are four pre-enabled pools shipped with Backup:

• Default pool, collects any backup data that is not directed to a customized pool.

• Archive pool, collects any archive data not directed to a customized pool.

• Default clone pool, is available to clone backup data to.

• Archive clone pool, is available for users to clone archive data to.

  There are also a few pools shipped with Backup that are not enabled by default:

• Use the Full and NonFull pools, to segregate full level backups from other backups, for example, fulls versus incrementals.

• Use the Offsite, pool to generate offsite backups, as index entries are stored for the media pool and will not be referenced during normal recovers.

  To edit the NSR pool resources for a Backup server use "nsradmin " or "nwadmin".

  The NSR pool resource has the following attributes:

• The name attribute specifies the name of pool resources used when labeling volumes and determines which volumes a save set will reside.

• The groups attribute specifies the groups allowed in a pool.

• The clients attribute specifies the clients allowed in a pool. If a group is specified, clients that are members of that group can be listed.

• The save sets attribute indicates the save sets allowed in a pool. Save sets can be matched using regular expression matching.

• The levels attribute specifies the levels allowed in the specified pool.

• The archive only attribute enables archive only saves for a pool.

• The status attribute indicates the status of a pool as one of the following:

  • enabled, the pool is considered for determining what pools a save set should be saved to when performing backup volume selection.

  • clone, this pool is considered as the destination for cloning.

  • disabled, this pool is completely ignored.

• The label template attribute specifies the label template referenced when generating volume names for a pool.

• The devices attribute indicates a devices volumes within this pool that are allowed to be mounted to.

• The store index entries attributes specifies the entries made into a file index for backups. If entries are not made into the file index e, only media database entries for the save sets will be created.

• The auto media verify attribute will verify data written to volumes from this pool. Data is verified by re-positioning the volume to read a portion of the data previously written to the media and comparing the data read to the original data written. If the data read matches the data written, verification succeeds otherwise it fails.

• The recycle to other pools attribute specifies whether or not a given pool allows other pools to recycle its recyclable volume for their use.

• The recycle from other pools attribute specifies whether a given pool can recycle volumes from other pools when it exhausts all of its write-able and recyclable volumes.

• The volume type preference attribute specifies the selection factor made when their is a request for a write-able volume. The preferred type will be considered first within a priority level such as jukebox or stand alone device.

  Following is an example of a NSR pool resource:

  type: NSR pool; archive only: No; clients: ; devices: ; groups: ; label template: Default; levels: ; name: Default; save sets: ; status: Enabled; store index entries: Yes; auto media verify: Yes; recycle from other pools: Yes; recycle from other pools: Yes; volume type preference: 4mm;