Initialization Process
The Teradata program, DBCCICS, performs the following initialization stages:
1 Establishes a routine to trap and handle interface abends.
2 Enables the task end/exit routine.
3 Initializes the free storage chains as specified in the control block HSHSPBC (optional).
4 Loads the single‑shared copy of the CLI and preprocessor runtime.
5 Waits for requests to freemain memory from transactions using the interface.
6 Waits for a request from DSCN to shut down the interface.
7 Starts the 2PC (two-phase commit) connections to TDPs whose entry in the DBCDLT specify START = YES.