On Wed, 8 Apr 2015 21:41:48 +0530, zos reader wrote: > >We are running zOS1.13 on z114 box. As we aware Leap Second is to happen on >30th June. Will there be any impact, if yes do we require any changes to be >done prior to this. >Please guide me > See OA05136 (Mine!)
Probably no impact given that z/OS makes user processes nondispatchable during the leap second. (Well, 1/3600 the impact of shutting dowh for an hour every Fall.) The duration of a process spanning the Leap Second shown by the difference between two STCK values will appear. We enabled Leap Seconds many years ago, then disabled them shortly after because vendor products were inconsistent in their treatment of CVTLSO (Our systems programmer names SMF and RMF.) But you're already enduring that; it will get only 4% worse. And IBM refuses to document STCKCONV's treatment of CVTLSO. -- gil ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
