Philip, just a few thoughts. Have you thought about any automation you might have in place. Will it handle the time change or does it need to stopped.
Any monitoring software you might have. Will it handle the time change or dose it need to stopped. Do you plan on holding the JES2 inits during the time of the roll back? If so, you might want to plan when that will be done so you don't have any long running jobs that might not like the time change. Paul -----Original Message----- From: IBM Mainframe Discussion List <[email protected]> On Behalf Of Watkins, Philip S. Sent: Friday, October 24, 2025 2:41 PM To: [email protected] Subject: Time Change Delima Running an unsupported operating system 1.13 on a Z9 processor. No SYSPLEX timer installed. We are coming up on the time falling back the first Sunday in November. We have a slight problem. We are not able to shutdown and IPL the system to wait an hour but need to change the time. We are thinking possibly that issuing the TIMEZONE W.05.00.00 or set CLOCK=hh.mm.ss commands should do the trick. We do plan on shutting down all online systems, logger files along with SMF. Not sure about SYSLOG or how OMVS will handle the situation. Any suggestions or gotchas we might be missing? Philip S Watkins Senior Systems Programmer Prince George's County, Maryland Office of Information Technology 9201 Basil Court/ Room B8 Largo, MD 20774 Voice: 301-883-7189 E-Mail: [email protected]<mailto:[email protected]> ________________________________ This E-mail and any of its attachments may contain Prince George's County Government or Prince George's County 7th Judicial Circuit Court proprietary information or Protected Health Information, which is privileged and confidential. This E-mail is intended solely for the use of the individual or entity to which it is addressed. If you are not the intended recipient of this E-mail, you are hereby notified that any dissemination, distribution, copying, or action taken in relation to the contents of and attachments to this E-mail is strictly prohibited by federal law and may expose you to civil and/or criminal penalties. If you have received this E-mail in error, please notify the sender immediately and permanently delete the original and any copy of this E-mail and any printout. ---------------------------------------------------------------------- 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
