For instance, do we switch the tape drive resources back and forth between the two LPARs, or is there a way we can backup the test/development side to a save file and transfer it over to the production side for backup?
You can also make incremental saves on the test/development system to save file, as you suggest, and ship them to the production partition. Look into the SAVSAVF command. I always try to keep in mind that the key to a successful backup and recovery strategy is the recovery part. Consequently, I try to make that part of the equation as simple as possible. Periodic full saves of the development partition will help as it gives you a base from which to start the recovery.
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