From an active system, the operator must determine if the failed system, SYS1, stopped temporarily or if the failure requires reIPL.

• If SYS1 stopped temporarily, do nothing.
  When SYS1 resumes processing, it automatically rejoins the complex because REJOIN(YES) was specified. The following messages appear on all active systems:

      
    ISG011I SYSTEM SYS1 - RESTARTING GLOBAL RESOURCE SERIALIZATION
    ISG013I SYSTEM SYS1 - RESTARTED GLOBAL RESOURCE SERIALIZATION
   

• If SYS1 requires reIPL, do the following:
  1. On an active system, enter VARY GRS(SYS1),PURGE to remove SYS1 from the complex. The following message appears:

         
      ISG017D CONFIRM PURGE REQUEST FOR SYSTEM SYS1 - REPLY YES OR NO
      

     Reply YES. The following message appears:

      ISG011I SYSTEM SYS1 - BEING PURGED FROM GRS COMPLEX
      

  2. If the following appears before ISG013I, the message indicates a possible data integrity exposure.

         
      ISG016I SYSTEM SYS1 OWNS OR IS WAITING FOR GLOBAL RESOURCES
      

     Notify the system programmer. Give the system log to the system programmer. The system log normally contains messages about the problem. The following message describes any resources that might have been damaged by purging the system:

         
      ISG018I REQUESTORS FROM SYSTEM SYS1 HAVE BEEN PURGED FROM    
              RESOURCES NAMED xxxx,yyyy
      

  3. On SYS1, reIPL the system with GRS=JOIN.
  4. On the active systems, the following messages appear when SYS1 rejoins the complex:

         
      ISG011I SYSTEM SYS1 - JOINING GRS COMPLEX    
      ISG004I GRS COMPLEX JOINED BY SYSTEM SYS1