Steps for diagnosing a system partitioned because of status update missing

When partitioned, the system is be put into a X'0A2' wait state with one of the following reason codes:

• X'104' if a System Failure Management (SFM) Policy is active and IO is fenced.
• X'10C' if the status update missing.

1. Verify the system was partitioned from the sysplex as indicated by message IXC101I, which is in the OPERLOG:

   IXC101I SYSPLEX PARTITIONING IN PROGRESS FOR SYS22 REQUESTED BY
   XCFAS. REASON: SFM STARTED DUE TO STATUS UPDATE MISSING              

2. Verify the system is in a X'0A2' wait state by entering the IPCS STATUS CPU command:

   CPU(X'01') STATUS:                                                                 
   PSW=000A0000 800200A2                                                              
       Disabled wait state code 00A2  SUPPLMNT INFO 8002                              
   Wait occurred because system monitor control information cannot be read or written.
     ASCB6 at F42700, JOB(XCFAS), for the home ASID                                   
     ASXB6 at 5FDE88 and TCB6G at 5FF500 for the home ASID                            
     HOME ASID: 0006 PRIMARY ASID: 0006 SECONDARY ASID: 0006                          

3. Enter the IPCS COUPLE SYSPLEX EXCEPTION to identify the reason the system is being partitioned.
4. If the reason is that the system entered a coded disabled wait state prior to sysplex partitioning, go to Diagnosing a coded disabled wait state otherwise, go to Diagnosing an enabled wait state.