Steps for gathering messages and logrec for hangs

About this task

Use the following steps to collect and analyze messages and logrec records about the problem.

Procedure

  1. Use time stamps to select messages and software, symptom, and hardware logrec records related to the problem. Look in the following:
    • OPERLOG or SYSLOG
    • VERBEXIT MTRACE dump output, which shows the buffer for system messages
    • VERBEXIT LOGDATA dump output, which formats the logrec buffer
    • Logrec data set, formatted by EREP
  2. Use the COPYCAPD command to check for any SVC dumps captured in dataspaces that did not have a chance to get written out to a dataset prior to the system hang. For example:
    Number  Time stamp           Title                                                                  
    ------  -------------------  -----------------------------------------------------------------------
    --------------
     1  04/10/2006 15:41:18  END OF MEMORY RESOURCE MANAGER HANG DETECTED: TCB = 009BBE88, NAME = ................
     2  04/10/2006 15:42:24  END OF MEMORY RESOURCE MANAGER HANG DETECTED: TCB = 009D64B0, NAME = ................
     3  04/10/2006 15:44:43  IXC431I XCF STALLED GROUP                                                            
     4  04/10/2006 15:46:35  JES2/XCF Env on current & other sysplex members via IEADMCJ2                         
     5  04/10/2006 15:51:35  END OF MEMORY RESOURCE MANAGER HANG DETECTED: TCB = 009683F0, NAME = ................
     6  04/10/2006 15:52:43  END OF MEMORY RESOURCE MANAGER HANG DETECTED: TCB = 009D17A8, NAME = ................
     7  04/10/2006 15:53:51  END OF MEMORY RESOURCE MANAGER HANG DETECTED: TCB = 009A4998, NAME = ................
     8  04/10/2006 15:55:00  END OF MEMORY RESOURCE MANAGER HANG DETECTED: TCB = 009A4758, NAME = ................
     9  04/10/2006 15:56:21  END OF MEMORY RESOURCE MANAGER HANG DETECTED: TCB = 00985CF8, NAME = ................
    These SVC dumps can be extracted into dump data sets using the COPYCAPD command and then diagnosed individually. Go to Diagnosing an abend.

Results

You know you are done when your search produces a match.