A resource pool is a collection of tapes that CA VM:Backup can use during backup or MPC job processing. Resource pools allow you to predefine a set of tapes for use in particular backup or MPC jobs. Predefining a set of tapes avoids having to specify a tape each time that CA VM:Backup requires one.
The tapes that are defined to a particular resource pool must have the same physical characteristics. As a job runs, CA VM:Backup automatically uses the next tape that is defined in the pool. When the last tape in the resource pool is used, you can have CA VM:Backup prompt the tape operator to provide more tapes, which can be added permanently to the pool.
A superpool is a collection of DASDtape resource pools that are referenced and used as if they were a single entity. A superpool is useful during a backup or MPC job if one of the following situations occurs:
In these cases, CA VM:Backup uses the next pool that is defined in the superpool to continue the job. When the last tape in the last resource pool is used, CA VM:Backup can hold the backup or can ask the operator for the volser of an available tape.
This chapter explains how to perform the following actions through Option 3, Manage resource pools, on the System Administrator Main Menu:
You can apply any of the functions that are described in this section to resource pools and superpools for any authorized client, such as CA VM:Archiver, as well as for CA VM:Backup.
This section contains the following topics:
Suspending CA VM:Backup Before Updating Resource Pools
Screen Commands for Managing Resource Pools
Modifying Resource Pool Attributes
Discarding Resource Pools and Superpools
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