SPOOL

The SPOOL system initialization parameter specifies whether the system spooling interface is required.

SPOOL={NO|YES}
Valid values are as follows:
NO
The system spooling interface is not required.
YES
The system spooling interface is required.
The CICS® spool interface uses the MVS™ exit, IEFDOIXT, which is provided in the SYS1.LINKLIB library. For further information about the MVS exit IEFDOIXT, see z/OS MVS Installation Exits.