I'm pretty sure that 'incremental adjustment' or 'steering' is limited to just a few minutes. Certainly less than hours. That was true for 9037 sysplex timer; I believe it's true for STP as well.
There are so many things wrong with Acquaintance's shop that it's hard to know where to begin. -- Depending entirely on a distant person to orchestrate time change is scandalous. -- Still running with UTC=LOCAL time decades after this practice was abandoned by most shops defies credulity. -- Waiting forever on Mr. Remote to call back for IPLs shows a huge lapse in operational protocol. If nothing else, I would hope that this incident motivates some ground-up changes. And BTW, all modern software can/should tolerate shifts in local time. The hardest part of our change in the 90s was getting DB2 folks used to reading log time stamps in true UTC. It didn't take them very long. . . J.O.Skip Robinson Southern California Edison Company Electric Dragon Team Paddler SHARE MVS Program Co-Manager 323-715-0595 Mobile 626-302-7535 Office [email protected] -----Original Message----- From: IBM Mainframe Discussion List [mailto:[email protected]] On Behalf Of Ed Jaffe Sent: Tuesday, November 08, 2016 8:58 AM To: [email protected] Subject: (External):Re: Time Change Problem #1398 On 11/8/2016 5:52 AM, Christopher Brown wrote: > A curious situation from Saturday night. At an acquaintances site, they > usually do a POR (no idea why and I'm afraid to ask) for the time change. IIRC, the only way to get your CEC clock resynchronized with the SE clock, if you don't have the "steering" function provided by STP (previously ETR), is to perform a POR. Of course, this resynchronization doesn't have to be done during the time change, but the event serves as a convenient reminder to do so... like changing your smoke alarm batteries at home... -- Edward E Jaffe Phoenix Software International, Inc 831 Parkview Drive North El Segundo, CA 90245 http://www.phoenixsoftware.com/ ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
