System Programmer Reference › CA VM:Backup Components and Concepts › Jobs › Backup Jobs

Backup Jobs

Backup jobs write data that is stored on minidisks or in the BFS or SFS file spaces to tape. These backups are a safeguard against errors or the destruction of data. Backup jobs can back be scaled in the following ways:

• All of the DASD volumes and file pools that are defined at your site
• Only specific minidisks, the file spaces, files, tracks, or blocks

Backing Up Data provides more detail on backup jobs.

This section describes the following aspects of backup jobs:

• Types of backup jobs
• Backup media
• Backup job definition
• Exception and exclusion files
• Backup formats

CA VM:Backup can perform two types of backups, full and incremental. Full backups copy all of the data on a minidisk or in a file space to tape. Incremental backups copy data from a minidisk or file space to tape. Incremental backups occur only if data on a minidisk or file space has changed after the previous backup.

CA VM:Backup can back up data to DASDtapes, reels, cartridges, enhanced-capacity cartridges, or high-performance (3590) cartridges. DASDtapes are CMS files that simulate real tapes or supported devices. For a list of supported tape drives, see Tape Drives, Media, Density Names, and TMC Values.