On Mon, 15 Aug 2022 22:09:13 +0000, Pew, Curtis G <[email protected]> wrote:
>We’ve occasionally had problems with our production z/OS LPAR that seem to be >caused by HZSPROC, and I was wondering if anyone else has seen anything like >this. > >One problem we’ve seen is that sometimes when HZSPROC starts during an IPL, it >for some reason seems to try to access a migrated dataset (we use FDRABR for >dataset migration) and since DFRMM hasn’t started yet the recall fails. (We >don’t know what dataset it is trying to access; none of the datasets >explicitly in the PROC ever migrate.) Everything seems to freeze until we >reply “CANCEL” to the EDG4012D message. > >This is annoying enough, but last Thursday one of my coworkers stopped HZSPROC >because it was repeatedly issuing the message that ECSA usage was high. (We’d >already scheduled an emergency IPL for Sunday to fix that.) Then Friday >another coworker tried to restart HZSPROC to see if he could figure out the >migration issue, and our system stopped working well. It looked like batch >jobs were stuck in allocation or deallocation from what was described to me. >(I’m semi-retired and don’t work on Fridays.) They decided to go ahead with >the emergency IPL then and there, but without HZSPROC starting. That IPL went >fine and we haven't seen any issues since then, but we’re afraid to try to >start HZSPROC. > >Has anyone had issues like this with Health Checker? Any suggestions for how >to resolve this? > The only thing that comes to mind is that the logger offloads are getting migrated and at startup when Health Checker connects to the logstream it wants to delete old data that happens to be migrated at the time. Check your hlq.HZS.HCHECKER.HISTORY (your name may be different depending on how you defined the logstream) and see if anything is migrated ever. In my case I define the logstream with AUTODELETE(YES) and RETPD(14). It gets assigned a MGMTCLAS that doesn't migrate. Best Regards, Mark -- Mark Zelden - Zelden Consulting Services - z/OS, OS/390 and MVS ITIL v3 Foundation Certified mailto:[email protected] Mark's MVS Utilities: http://www.mzelden.com/mvsutil.html ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
