MESSAGEDATASET: Specifying the date and time used in the message data set name

Explanation: MESSAGEDATASET is an optional parameter that allows you to specify the date and time used in the name of the fast replication command message data set. Specifying the date and time ensures that you can identify the message data set that corresponds with the FRBACKUP request. If you don't specify the date and time with the MESSAGEDATASET parameter, DFSMShsm uses the date and time when the message data set name is generated.

The value for the DATE parameter must be a five-digit numeric value, yyddd.

The value for the TIME parameter must be a six-digit numeric value, hhmmss.

If a duplicate message data set already exists with the specified date and time, DFSMShsm fails the command.

Use of the message data set is controlled with the MESSAGEDATASET parameter of the SETSYS FASTREPLICATION command. Refer to SETSYS command: Establishing or changing the values of DFSMShsm control parameters for more information.

Defaults: None.