Skip - we run IEAMDBLG to offload OPERLOG to sequential datasets, named with the date, once a day. You could offload your three systems to temporary sequential datasets and combine them via SORT (DF/ or Sync) into something sorted by date and time. One caveat - even if you use HCFORMAT(CENTURY) the IEE042I SYSTEM LOG DATA SET INITIALIZED messages seem to have 2-digit years so I'd recommend omitting them .
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