I opened a ticket with IBM on this. Should be interesting to hear what they say.
Mark Jacobs Sent from ProtonMail, Swiss-based encrypted email. GPG Public Key - https://api.protonmail.ch/pks/lookup?op=get&[email protected] ------- Original Message ------- On Tuesday, May 9th, 2023 at 12:21 PM, Pommier, Rex <[email protected]> wrote: > I see a problem with this scenario. It appears to me that there is a call > (not necessarily by Shmuel) to potentially have JES2 wait for OMVS to be up > before it does its startup (or at least completes the startup). Due to a > self-inflicted screw-up on one of our LPARs, OMVS decided it had to do a > filesystem check on every filesystem on the system. This took a good half > hour where it simply appeared our LPAR was hung. JES2 had come up and I was > able to start a few address spaces that are dependent on JES so I could > figure out what was going on. Had JES been waiting for OMVS we would have > been completely in the dark on this issue. > > I could see there being communication between JES and OMVS so that when OMVS > gets initialized it signals JES to redrive any failed zFS allocations, but > don't force JES to wait until zFS is available. > > My $.02. > > Rex > > -----Original Message----- > From: IBM Mainframe Discussion List [email protected] On Behalf Of > Seymour J Metz > > Sent: Tuesday, May 9, 2023 10:10 AM > To: [email protected] > Subject: [EXTERNAL] Re: JES2 Submitlib Bootstrap problem > > Yes, IBM absolutely should take startup sequence into account and should > provide mechanisms to ensure that things occur in the proper order. This goes > beyond OMVS. > > > -- > Shmuel (Seymour J.) Metz > https://urldefense.com/v3/__http://mason.gmu.edu/*smetz3__;fg!!KjMRP1Ixj6eLE0Fj!oLVba7cIWA-HvwL4aaVssbMaEZeCG3m_dnLPJgpEL8DOiFs5DAJaoVf27kYVUZyYy_Nw7UxsOVp6sogwmA$ > > ________________________________________ > From: IBM Mainframe Discussion List [[email protected]] on behalf of > Paul Gilmartin [[email protected]] > Sent: Tuesday, May 9, 2023 11:01 AM > To: [email protected] > Subject: Re: JES2 Submitlib Bootstrap problem > > On Tue, 9 May 2023 12:18:11 +0000, Mark Jacobs wrote: > > > I defined several submitlibs in my JES2PARM to use directories in a ZFS > > filesystem. When I hotstart JES2, JES2 can find everything and is happy. > > During IPL/JES2 startup it's not. It doesn't seem like OMVS is initialized > > yet and so the file systems aren't accessible for JES2 to resolve. I > > haven't fully analyzed the system log to confirm it yet, but it seems like > > a reasonable assumption. Has anyone else run into this? > > WAD? z/OS UNIX appears to be a second-class citizen in that operations that > require UNIX facilities are allowed to begin before UNIX is available, then > simply fail. > > Should design give more attention to the order of startup operations? > > Should there be an implied WAIT (not explicit) for any operation which > requires UNIX? Would that be likely to result in a deadlock? > > -- > gil > > ---------------------------------------------------------------------- > 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 > > ---------------------------------------------------------------------- > The information contained in this message is confidential, protected from > disclosure and may be legally privileged. If the reader of this message is > not the intended recipient or an employee or agent responsible for delivering > this message to the intended recipient, you are hereby notified that any > disclosure, distribution, copying, or any action taken or action omitted in > reliance on it, is strictly prohibited and may be unlawful. If you have > received this communication in error, please notify us immediately by > replying to this message and destroy the material in its entirety, whether in > electronic or hard copy format. Thank you. > > ---------------------------------------------------------------------- > 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
