Recommendations for spool or checkpoint volume migration

You can prevent logging function delays for the migration of spool or checkpoint volumes through the following recommended practices.

TDMF will delay the run of any function, such as allocation/deallocation, that might require access to SYSLOG until there is no longer any volume in a quiesced state.

However, the drawback is that when migrating JES spool or checkpoint volumes, TDMF may encounter an unexpected logging function that requires JES2/JES3 to be able to access a volume that TDMF has quiesced. In this situation, the session will hang until it has been canceled. For this reason, it is strongly recommended that only inactive or drained checkpoint and spool volumes are migrated. If this is impractical, then under no circumstance must there be more than one checkpoint or spool volume migrated at one time.

It is recommended you try this function in a test environment before migrating spool volumes in a production environment.