Pools

A pool is a specific collection of media to which Backup writes data. Backup uses pools to sort and store data. The configuration settings for each pool act as filters that tell Backup which volumes should receive specific data. Backup uses poolsin conjunction with label templates to keep track of which data is on which specific volume. For detailed information about label templates, see "Labeling Storage Volumes" on page 68.

How Backup Uses Pools

The way you configure pools determines which volumes receive data. Each pool configuration contains a list of criteria that the data must meet for the data to be written to associated volumes. When you specify save sets to include in a pool, you can specify exact save set names, or you can use regular expression matching to send a group of save sets to a specific pool. For an example using regular expression matching, see "Example: Directing Client Indexes and Bootstrap to a Separate Pool" on page 63. For detailed information about regular expression matching, refer to the nsr_regexpman page.
When a scheduled backup occurs, Backup tries to match the save set to a pool configuration. If the save set matches the criteria of a pool configuration, Backup directs the save set to a labeled volume from that pool.
Backup then checks to see whether a correctly labeled volume is mounted on a storage device. If a correctly labeled volume is mounted on a storage device, Backup writes data to the volume. If a correctly labeled volume is not mounted on a storage device, Backup requests that such a volume be mounted and waits until an operator mounts the appropriate volume.

Backup Pool Types

Backup provides preconfigured pool types to keep different types of data separate. Backup does not mix the following types of data on volumes within a pool: *Backup data
*Archive data
*Cloned data
*Migration data
Unless you specify other pools, all backup data is routed to the Default pool and all archive data is routed to the Archive pool. Cloned backup data is routed to the Default Clone pool, and cloned archive data is routed to the Archive Clone pool.

Solstice Backup 5.1 Administration Guide*April 1998

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