On Thu, 21 Dec 2006 15:07:21 -0800, Edward Jaffe <[EMAIL PROTECTED]> wrote:
>If you collect SMF Type 19 records, beware that an >SMF-initialization-time LSPACE request is issued for every volume >connected to the system. If SYSVTOC.volid is held by another system for >any significant period of time, an IPLing system will appear to be >"stuck". This happened to us and we had to wait over half an hour for a >full-volume dump (occurring on another system) of a 60K cylinder DASD to >finish before SMF would initialize and the IPL could continue. The >contention looked like this: > >ISG343I 08.05.18 GRS STATUS FRAME LAST F E SYS=MVS70 >S=SYSTEMS SYSVTOC TIVSM4 >SYSNAME JOBNAME ASID TCBADDR EXC/SHR STATUS >MVS70 DFHSM70 0026 00BA2E88 EXCLUSIVE OWN >MVS60 SMF 0018 00BFD0C0 EXCLUSIVE WAIT > >IBM's suggestion for a fix/workaround/solution? Don't collect SMF Type >19 records. :-( > I haven't collected them in I don't know how long due to the impact of LSPACE at SMF interval time. At first I was going to say, "don't you get a nip message that asks you if you want to continue and put the reserved volume offline?", but then I realized that you are talking about after nip. So didn't you also get some messages during NIP when it couldn't get to the device? Or do you convert SYSVTOC to a global enq? I assume this was DFDSS and not FDR since FDR doesn't hold the vtoc for the entire dump (by default). You could implement the sample exit for DFDSS (ADRUENQ) that does the same thing (only enq the VTOC at the start of the dump to read it). Mark -- Mark Zelden Sr. Software and Systems Architect - z/OS Team Lead Zurich North America / Farmers Insurance Group - GITO mailto:[EMAIL PROTECTED] z/OS and OS390 expert at http://searchDataCenter.com/ateExperts/ Systems Programming expert at http://expertanswercenter.techtarget.com/ Mark's MVS Utilities: http://home.flash.net/~mzelden/mvsutil.html ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [EMAIL PROTECTED] with the message: GET IBM-MAIN INFO Search the archives at http://bama.ua.edu/archives/ibm-main.html
