PoOP only says this under SCKPF: Programming Note: The values in the TOD programmable registers of a configuration should be the same and should be unique within a multiple-configuration system.
It says nothing about what value z/OS puts into the field, only that t "should be unique" (only "should", not "must"). I still have the question: Is the value populated by z/OS into that field documented anywhere? Peter -----Original Message----- From: IBM Mainframe Discussion List <[email protected]> On Behalf Of Attila Fogarasi Sent: Wednesday, March 17, 2021 5:48 PM To: [email protected] Subject: Re: Contents of TOD Programmable Field under z/OS? It is documented in Pops under the SCKPF instruction (which is where I would expect). For z/OS it is unique sysplex-wide (i.e. in the scope where zos can co-ordinate setting the prefix value). Sole purpose is to resolve timestamp collisions. On Thu, Mar 18, 2021 at 2:19 AM Farley, Peter x23353 < [email protected]> wrote: > I have recently seen a comment in a prior co-worker's assembler code > which used STCKE to retrieve the TOD "Programmable Field" contents: > > "The Field contains a value, assigned by z/OS, which uniquely > identifies a current LPAR in the SYSPLEX of machines." > > Is this a true statement, and if so is it documented anywhere? > > If true, is the value unique to the CPU or to the LPAR or to the CPC or . > . . ? > > Peter -- This message and any attachments are intended only for the use of the addressee and may contain information that is privileged and confidential. If the reader of the message is not the intended recipient or an authorized representative of the intended recipient, you are hereby notified that any dissemination of this communication is strictly prohibited. If you have received this communication in error, please notify us immediately by e-mail and delete the message and any attachments from your system. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
