ZCOM Tables and Data Structures
ZCOM Header Structure
HLTDSZE - Logical terminal table LDATA buffer size
This specifies the size of the LDATA buffer in the logical terminal tables. This value is initialized from the
HLTMAX - Number of logical terminal tables
Contains the maximum number of Logical Terminal Tables (LTT) which may exist in the configuration. This value is initialized from the
HPTMAX - Number of physical terminal tables
Contains the maximum number of Physical Terminal Tables (PTT) which may exist in the configuration. This value is initialized from the
HNCARD - Number of Mux interface tables
Number of Interface Tables (IFTs) which may exist in the configuration. This value is initialized from the
HNRESP - Number of response records
This field contains the number of response records in the ZCOM subsystem. This value is initialized from the
HNLTQL - Number of LTT queue labels
Number of entries in the queue label table, up to a maximum value of 20. It is initialized by TTGEN to the number of
HNLTSL - Number of LTT storage labels
Number of entries in the storage label table, up to a maximum value of
20.It is initially set up by TTGEN and subsequently maintained by the LDM.
Chapter 3 | 47 |