The Delete Subsystem Description (DLTSBSD) command deletes the specified subsystem descriptions (including any work entries or routing entries added to them) from the system. Job queues assigned to this subsystem by the Add Job Queue Entry (ADDJOBQE) command are not deleted. In fact, when you delete a subsystem description (SBSD), none of the objects that are referenced by the SBSD are deleted.
DLTSBSD SBSD(LIB1/BAKER)