How to Use Batch Restores For Faster Multi-library Recoveries

When doing BRMS recoveries, users can use the new SUBMIT TO BATCH function if saves were done in Serial-Parallel mode or there is a need to run multiple restores concurrently to save time.

To use this function, the following needs to be done:

Put all scheduled jobs on hold. Depending on the job scheduler you use, how to do this will differ.
CHGJOBQE QBATCH - Change MAXACT and all MAXPTY* parameters to number of concurrent restores to be run and press Enter. These parameters should be reset to the original values when the restore is complete.
Start QBATCH
End Q1ABRMNET subsystem if it starts
Run a STRRCYBRM *SYSBAS *RESTORE , then choose the *VOLSET on the Select Recovery Items menu and specify the first volume. Select F16 to mark all items in the volume set. and then select F14 to submit to batch.
STRRCYBRM *RESUME and did same for each *VOLSET
Use WRKSBMJOB to monitor the restores that have been submitted to batch and check for any errors.

NOTES:

You will need sufficient tape drives. A minimum of one for each restore job.
If you have iASPs to recover, you will want to use STRRCYBRM *ASPDEV *RESTORE once they are AVAILABLE.
Available at V5R4M0 and above
Make sure any items that span volumes are not selected on different jobs
This option is available for all types of saves
- Serial
- Serial-Parallel
- Parallel-Parallel