Requirements

Authorization:: Any PSW key in supervisor state
Dispatchable unit mode:: Task of z/OS UNIX user
Cross memory mode:: PASN = HASN
AMODE:: 31
RMODE:: Any
ASC mode:: Primary or AR mode
Recovery mode:: ESTAE. Caller cannot have an FRR active.
Serialization:: Enabled for interrupts
Locks:: No locks held
Control parameters:: The parameter list and the work area must be in the primary address space. ALETs must be passed for all parameters except the work area. The words containing the ALETs must be in the primary address space.