Re: Save to SAVF hangs

[CRPence <CRPbottle@xxxxxxxxx>]

Kirk Goins wrote:
> I have a client that does '2' backups each night. The 
> first(SAVLIB *ALLUSR) to tape just fine. Recently the 2nd save of
> of 20+ libs to savefiles hangs at different libs. The Job will
> not end *IMMED and requires ENDJOBABN to kill it.

  Although the conclusion that the request to end the job 
abnormally was a /requirement/ might seem to support that the save 
library request was hung, the symptom HANG is not the same as the 
symptom WAIT.  Only problem investigation activity could determine 
which symptom most accurately describes the scenario; e.g. things 
like process & task dumps, possibly in combination with review of 
VLogs.  Allowing the request to timeout may have the load\dump 
component logging some details about what was the object or event 
being awaited [but never encountered].  However ending the request 
may not allow that logging, such that only by review of the status 
of the dump tasks would indicate for what the task might have been 
waiting.  Regardless....

> The system is a
> new E4A at 6.1 with the 10047 CUME and numerous groups applied,

  Most hang or wait, esp. any that do not easily end, are typically 
LIC.  IBM i 6.1 OS has both 6.1 and 6.1.1 LIC.

  Would that include the HIPer group SF99609?

> Today it wasn't big deal as the lib it hung on wasn't required by
> users, Yesterday it had a production objects locked and users
> were having problems.

  Best time then, to investigate the problem, *before* attempting 
to recover from the problem; e.g. by ENDJOB, which impairs the 
ability to diagnose the condition\status\activity of the job.

> Anyone seen this before?

  High Impact Pervasive problems for r610:
http://www-912.ibm.com/s_dir/sline003.nsf/2d3aff1c6b4d6ce086256453000d971e/c06c2944e17f4b3e862573df005284d9?OpenDocument

  A problem possibly manifest as an apparent hang, in the HIPer 
list above, was discussed previously on this list:
http://archive.midrange.com/midrange-l/201003/msg01042.html
MA39127 - LIC-WAIT JOB HANGS WHILE PERFORMING SAVE OPERATION
http://www-01.ibm.com/support/docview.wss?uid=nas255954f589e98fc33862576d70042481d
http://www-01.ibm.com/support/docview.wss?uid=nas354c0437b336e913a862576e700688f93
http://www-01.ibm.com/support/docview.wss?uid=nas3e603ffca5b6c9500862576e700688f88

  Also from that HIPer list:
MA38023 - LIC-DB-JRN-WAIT DEADLOCK IN TASK JO-QUIET
? APAR link not found
http://www-01.ibm.com/support/docview.wss?uid=nas30ece105244af450486257626005812fe
? other release PTF link not found

  There is yet another [older] HIPer for SAV-related function, in 
the vrm610 PSP.

Regards, Chuck