Configuring TDP - Teradata Director Program

Teradata® Director Program Reference - 17.20

Teradata Director Program
Release Number
June 2022
English (United States)
Last Update
Product Category
Teradata Tools and Utilities

TDP is configured through its commands. TDP commands which are always issued when TDP is started can be specified in a dataset allocated by a z/OS TDPPARM Data Definition (DD) statement in the TDP Job Control Language (JCL) or FILEDEF for TDPPARM. Such commands fall into two general categories: those that can only be issued from TDPPARM and those that can be issued anytime.

Those commands that can only be issued from TDPPARM have a unique command verb, INITIAL (refer to TDP Operator Command Descriptions for a complete description). INITIAL commands can only be issued from TDPPARM because their settings are necessary for TDP to initialize. Since all settings have defaults, no INITIAL commands are required. But two such commands are often used.
  • The mode of channel communication with the database can be specified by the INITIAL IOMODE command.
    • On z/OS, EXCPVR is the default because it is a general interface, but on z/OS, IOSDRIVR is recommended (it is not the default only because it is an undocumented z/OS interface, even though it has been fully stable and unchanged for many years).
  • On z/OS, the version of the TDP Link-pack routines needed to communicate with applications can be specified if multiple versions of TDP are installed on the system. The INITIAL OSSISUFX and INITIAL PCSUFX commands can be used to specify the one character suffix for the versions that match the TDP version. The same suffix character is normally used on both commands.
All other TDP commands can be issued anytime TDP is running (see TDP Commands for descriptions of all commands). Including those always issued in TDPPARM eliminates the need to manually issue the same commands every time TDP is started. Two commands are almost always specified.
  • One START CP or START NP command is included for each CP and NP configured for the Logical-host. While not all CPs and NPs configured for the Logical-host need be STARTed, there is no purpose in not doing so.
  • The RUN command is included as the last command to begin TDP processing.

Once the typical workload has been established, it is common to adjust the virtual storage used by TDP storage cells by including the TDP commands ADD CELLS and ADD XMSCELLS.