Getting error message ESF092 with RC=4 trying to add additional space with a REINIT command:
ESF092 ADDING OF SPOOL DATASET FAILED RC=4, PLEASE CHECK SYSLOG FOR MORE DETAILS
The meaning of RC=4 for message ESF092 is:
RC=4 - During REINIT, the new SPOOLDS allocation caused the track allocation map to grow larger than 1 CYL. Restart CA Spool to add more Spool datasets.
So, you need to restart CA Spool to add the new space in this case. A WARM start is enough. The documentation is being updated to include the return code 4 for this message.