Here's a pretty good IBM techdoc on the subject: https://www-03.ibm.com/support/techdocs/atsmastr.nsf/WebIndex/WP102081
Kirk Wolf Dovetailed Technologies http://dovetail.com On Wed, Apr 8, 2015 at 11:27 AM, Paul Gilmartin < [email protected]> wrote: > 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 > ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
