Backing up data with ABARS aggregate backup function
To create an aggregate backup, use the STACK keyword on the ABACKUP command. If you specify the STACK keyword, ABARS places all of the output files from the aggregate backup onto one tape. You can then use the ABACKUP command to stack multiple aggregates or multiple versions of the same aggregate onto the same tape.
The example described in this topic shows how to create two versions of the aggregate named AGM1, and then stack them onto one tape. The serial numbers of the tapes used for this purpose are A00040 and A00041.
Step 1: create the first aggregate backup.
- Specify the STACK keyword on the ABACKUP command. The resulting ABACKUP Version 1 files reside on tape volser A00040.
| ABACKUP Version 1 | File Sequence on tape volser A00040 |
|---|---|
| Data (D) | 1 |
| Other Data (O) | 2 |
| Instruction and Activity Log (I) | 3 |
| Control (C) | 4 |
Step 2: create the second aggregate backup.
- Specify the STACK keyword on the ABACKUP command. The resulting ABACKUP Version 2 files reside on tape volser A00041.
| ABACKUP Version 2 | File Sequence on tape volser A00041 |
|---|---|
| Data (D) | 1 |
| Other Data (O) | 2 |
| Instruction and Activity Log (I) | 3 |
| Control (C) | 4 |
Note: The output files might span to multiple tape volumes,
if the aggregate output files are larger than the tape capacity.
Related reading
For more information about the aggregate output files, see Aggregate backup output.