Allocating NAMES and log data sets

TRANSMIT and RECEIVE use a NAMES data set to control TRANSMIT and RECEIVE processing and a log data set to keep records of TRANSMIT and RECEIVE activity. By default, TRANSMIT and RECEIVE obtain the NAMES and log data sets from operands specified on the TRANSMIT or RECEIVE command, or else use a NAMES or log data set defined by the user. You can also use exits to allocate the data sets or modify their names for the TRANSMIT and RECEIVE commands.

Specifically, the exits let you:

Allocate the NAMES data set or modify its name on the TRANSMIT or RECEIVE command, using exit INMCZ21R.
Allocate the log data set or modify its name on the TRANSMIT command, using exit INMXZ21R.
Allocate the log data set or modify its name on the RECEIVE command, using exit INMRZ21R.

If RACF® is installed and if your installation is using security labels, the installation-defined NAMES data sets must be allocated with a SECLABEL of SYSLOW. This allows TRANSMIT and RECEIVE to access the data set from any security label. For more information about setting up security labels, see .