DSNB749I GBPCACHE NO IS NOT ALLOWED FOR GROUP BUFFER POOL gbpname BECAUSE IT IS DUPLEXED

Explanation

This message is issued in response to an ALTER GROUPBUFFERPOOL command that requests a change of the GBPCACHE attribute from YES to NO, but because the group buffer pool is duplexed, the change from YES to NO is not allowed.

System action

The request to change from GBPCACHE(YES) to GBPCACHE(NO) is rejected.

System programmer response

GBPCACHE(NO) and duplexing are mutually exclusive. If you want GBPCACHE(NO), then you must put the group buffer in simplex mode before specifying GBPCACHE(NO). To put a duplexed group buffer pool in simplex mode, do any of the following procedures:
  • Activate a new CFRM policy that specifies DUPLEX(DISABLED) for the group buffer pool. This is the preferred method if you do not intend to duplex the group buffer pool again for awhile.
  • Ensure that DUPLEX(AUTO) is not specified in the active CFRM policy for the group buffer pool, and then issue the MVS command SETXCF STOP,REBUILD,DUPLEX.