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« on: February 10, 2017, 11:48:49 AM »
Sorry I missed much of this discussion. The process I listed was meant more for an immediate backout. Anything loaded after the initial migration would be lost after falling back In our one of our cases it was dummy data for test loads as part of the verification process which we deemed expendable. If you started loading production data you're in a different situation and the process I listed less optimal. We actually ran into this situation with another customer and the fallback was much more difficult, though not impossible. In a very basic summary: We had to identify all loads processed after the migration which, fortunately, wasn't an overwhelming number. Did a DB2 unload of the ARSRES table to help identify any new resources loaded during that period. Ran our fallback procedure which reverts all system tables to pre migration status but doesn't touch the index data. We then had to increment the LOAD_ID and RESGRP manually for each Application group that had been loaded in to cover the loads made after migration. Then we added the new entries to ARSRES using the ARSRES unload we did earlier. Since everything we do loads through OAM nothing is set to expire by Load and ARSLOAD isn't an issue.