By using copy storage pools, you maintain multiple copies of files and reduce the potential for data loss due to media failure. If the primary file is not available or becomes corrupted, the server accesses and uses the duplicate file from a copy storage pool.
Assume that you have two primary storage pools: one random access storage pool (DISKPOOL) and one tape storage pool (TAPEPOOL, with device class TAPECLASS). Files stored in DISKPOOL are migrated to TAPEPOOL. You want to back up the files in both primary storage pools to a copy storage pool.
To schedule daily incremental backups of the primary storage pools, do the following:
define stgpool copypool tapeclass pooltype=copy maxscratch=50
Notes:
backup stgpool diskpool copypool backup stgpool tapepool copypool
To minimize tape mounts, back up the disk storage pool first, then the tape storage pool.
For more information about scheduling, see Chapter 19, Automating Server Operations.