Queue model function management headers

CICS® uses the QMODEL headers to access IMS MFS demand-paged messages.

QMODEL headers are not sent by IMS to CICS. For SEND/RECEIVE, the CICS application program must prepare the QMODEL function management headers in order to receive demand-paged output from IMS. Temporary storage function shipping can be used with START/RETRIEVE. No EXEC commands exist to support the coding of QMODEL FM headers. The following QMODEL headers are used for MFS demand paging:
QGET
Requests a page directly
QGETN
Requests the next sequential page
QPURGE
Requests termination of demand paging
QXFR
Sent with the requested page
QSTAT
Sent when QPURGE is received, or when the requested page number is invalid