I nagged Mark Thomen into using a reusable ASID for CATALOG in 2006, release z/OS1.9.
Jim Mulder z/OS Diagnosis, Design, Development, Test IBM Corp. Poughkeepsie NY -----Original Message----- From: IBM Mainframe Discussion List <[email protected]> On Behalf Of Barbara Nitz Sent: Tuesday, October 25, 2022 12:15 AM To: [email protected] Subject: Re: CAS Restart during system startup Mark, >We don't start it in COMMNDxx/IEACMDxx, z/OS starts it as part of the system >initialization process. I take it that you mean the CATALOG address space. This has been so as long as I can remember: CAS starts in asid x'B' (I think) as a limited function address space to provide *some* catalog services to the IPL process. After other supporting address spaces have come up, CAS restarts itself as a full function address space in an asid with a much higher number. x'B' is left unusable for the life of the IPL. I believe this is described to some extent in the books and is also mentioned in SHARE presentations (with more details, IIRC). Regards, Barbara ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
