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 > ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
