The syntax of the SET command is:

>>-SET--+-PATCH--offset=value-+--------------------------------><
        +-MAXCC=--number------+   
        '-LASTCC=--number-----'   

The SET command allows you to customize certain DFSMSdss functions by temporarily setting patch bytes. You can also influence the logical path that DFSMSdss takes in the command sequence that follows the SET command. A SET command that occurs within an unprocessed THEN or ELSE clause is not processed.

PATCH

Specifies that DFSMSdss set the patch byte, at offset offset, to the value specified with value.

Your installation can limit the use of the SET PATCH command with the RACF® FACILITY-class profile STGADMIN.ADR.PATCH. You need READ access authorization to that profile to use the SET PATCH command.

offset

Specifies, in hexadecimal, the value for the patch byte offset. The maximum offset that you can specify is X'0FFF', and the minimum offset that you can specify is X'08'.

value

Specifies, in hexadecimal, the value that DFSMSdss assigns to the patch byte at the specified offset. The value must be in the range X'00' to X'FF'.

MAXCC

Specifies that the MAXCC be set to a new condition-code value. Setting MAXCC does not affect the value of LASTCC.

LASTCC

Specifies that the LASTCC be set to a new condition-code value. If the value assigned to LASTCC is higher than the value of MAXCC, MAXCC is also set to the higher value.

number

Specifies the value assigned to MAXCC or LASTCC. The maximum value that can be assigned is 16; a higher value is reduced to 16.