Backup and Recovery › Placement of Databases, Backup Files, and SMF Minidisks

Placement of Databases, Backup Files, and SMF Minidisks

You must plan carefully to determine which real DASD devices the following groups of minidisks should be located on:

• SMF file minidisks and backup file minidisks
• Primary database minidisks
• Alternate database minidisks (optional).

Place these three groups of minidisks on separate physical disk packs and on separate DASD control units. Separating these groups of minidisks ensures at least one set of databases is available if a hardware error occurs or that the files necessary to rebuild the databases are available.