Collecting data about z/OS Resource Recovery Services problems

If you use RRS with your IMS system:

• Take an SVC dump of the standard IMS regions using one of the methods discussed earlier: CTL, DL/I, DBRC, suspicious dependent regions, IRLM, and so on.
  • In addition, include the z/OS RRS address space and the z/OS logger address space (IXGLOGR).
    • Consider setting the following SLIP trap to supplement standard IMS/RRS ABENDU0711 diagnostics:

      SLIP SET,C=U0711,JOBLIST=(ctljname,rrsjname,IXGLOGR),
      SDATA=(CSA,PSA,RGN,SQA,SUM,TRT,GRSQ,LPA,ALLNUC),
      ID=nnnn,DSPNAME=('RRS'.*),END
       ---

      In the previous example:

      ctljname

      IMS control region job name

      rrsjname

      RRS region job name

      nnnn

      Name used to recognize this SLIP

• Turn on the RRS component trace.
  • Place the following statements in the CTIRRSxx PARMLIB member:

           TRACEOPTS
           ON
           BUFSIZE(500M)
           OPTIONS('EVENTS(URSERVS,LOGGING,CONTEXT,EXITS,STATECHG,RRSAPI,RESTART)') 

  • Place the following statement in the z/OS COMMNDxx SYS1.PARMLIB member:

    TRACE CT,ON,COMP=SYSRRS,500M,PARM=CTIRRSxx 

    Note: This statement allows the trace to be active at IPL.
  • Use the D TRACE,COMP=SYSRRS command to view the current trace setting.
  • RRS component trace is present in the RRS address space.
  • Format the trace by using IPCS CTRACE COMP(SYSRRS) FULL command.
• Save the IMS OLDS
  • IMS 67D0 log records are produced for some ABENDU0711 abends.
    • Print these records by using the IMS utility programs DFSERA10 and DFSERA30.
  • Other RRS related records that are produced:
    • TYPE4098 - Checkpoint for RRS log name.
    • TYPE5615 - IMS restarted with RRS.
    • TYPE5616 - Start of protected UOW.
  • Issue two or three IMS DISPLAY UOR ALL commands to show status about the IMS UOR for protected resources on the RRS recovery platform.
    • The RRS-URID provided by RRS and the IMS recovery token are displayed.
• If the problem is recreatable, then:
  • Turn on the RRS component trace:

    TRACE CT,ON,500M,COMP=SYSRRS
    nn,OPTIONS=(EVENTS(ALL)),END

  • When the problem has been recreated, stop the component trace:

    TRACE CT,OFF,COMP=SYSRRS

    • RRS component trace is present in the RRS address space.
    • Format the trace by using the IPCS CTRACE COMP(SYSRRS) FULL command.
• Issue two or three IMS DISPLAY UOR ALL commands to show status about the IMS UOR for protected resources on the RRS recovery platform.
  • The RRS-URID provided by RRS and the IMS recovery token are displayed.