To reduce overhead associated with CICS transactions accessing the Teradata Database, the CICS Interface can be made to use previously acquired storage pre‑allocated memory.
Thus, at connect time, the CLI can simply obtain the necessary control blocks and buffers from a free chain jointly managed by DBCCICS and CLI under installation control (HSHSPBC-specified).
This mechanism trades virtual storage against CPU overhead, providing the customer site with a mechanism to control and monitor memory management.