DEBUG


>>-+----------------------------------------------------------+-><
   '-DEBUG--(--+-FRMSG--(--+-MINimal----+--)--+--------+-+--)-'   
               |           +-SUMmarized-+     '-,TRACE-' |        
               |           +-DETAILED---+                |        
               |           '-DTL--------'                |        
               '-TRACE--+------------------------------+-'        
                        '-,FRMSG--(--+-MINimal----+--)-'          
                                     +-SUMmarized-+               
                                     +-DETAILED---+               
                                     '-DTL--------'

You can use the DEBUG keyword as a diagnostic tool. Specify DEBUG with one of the following sub-keywords:

TRACE

Specifies that DFSMSdss is to print messages that identify the relocated extents.

FRMSG

Specifies that DFSMSdss is to issue messages that explain why you cannot use fast replication or Preserve Mirror during a CONSOLIDATE operation. For Preserve Mirror operations, the DEBUG(FRMSG) keyword might not have an effect if the FlashCopy® target is not a PPRC Primary device. Specify DEBUG(FRMSG) with an additional sub-keyword, as follows:

FRMSG(MINIMAL): Specifies that DFSMSdss is to issue a message with a minimal level of information.
FRMSG(SUMMARIZED): Specifies that DFSMSdss is to issue a message with summarized information. When applicable, summarized information regarding ineligible volumes is provided in the message text.
FRMSG(DETAILED): Specifies that DFSMSdss is to issue a message with detailed information. When applicable, detailed information regarding ineligible volumes is provided in the message text.

Note:

If you specify FASTREPLICATION(REQUIRED) without specifying the DEBUG keyword, DFSMSdss issues an informational message whenever a fast replication method cannot be used.
The FRMSG sub-keyword overrides the DEBUG=FRMSG parameter specified on the JCL EXEC statement.