If the operator does not first purge the system, the following messages appear during reIPL of the failed system (SYS4):

    
  ISG006I GRS JOIN OPTION INVALID-SYSTEM SYS4 ALREADY A GRS SYSTEM
    

• This message says that the global resource serialization ring complex already knows the system name: SYS4. It means that, because the operator did not purge a failed system from the complex before starting reIPL, global resource serialization finds two systems in the complex with the same name.

  ISG006I also appears if the operator types the wrong system name during IPL or specifies the wrong IEASYSxx parmlib member.

    
  ISG007I fc-rc ERROR PROCESSING GRS JOIN OPTION.    
  ISG009D RELOAD THE SYSTEM OR REPLY JOIN OR NONE
 

• For an obvious typing error, the operator should restart the IPL and specify the system name correctly.