DFHSABDS |
The CICS® subsystem anchor block (SAB). This is used to
contain global subsystem-related information that is common to all CICS regions
in the MVS™ image. It is used to record the options specified in the DFHSSInn
member of SYS1.PARMLIB. It contains a pointer to a bit map that records which
MVS address spaces contain an active CICS. It also contains the address of
the subsystem control table extension (SCTE) used by IRC, and the address
of the CEC status tracking information used by XRF. |
IEFJSCVT |
The subsystem communication table (SSCT). This is an MVS
control block. There is one SSCT for each subsystem, including the primary
job entry subsystem (JES) as well as CICS. |
IEFJSSVT |
The subsystem vector table (SSVT). This is an MVS control
block. There is one SSVT for each active subsystem. It contains a lookup table
for determining which function codes are supported by the subsystem, and a
list of the entry points for all the supporting function routines. |