z/OS Tuning with I/O Mode Options - Director Program

Teradata Director Program Reference

Product
Director Program
Release Number
15.10
Language
English (United States)
Last Update
2018-10-07
dita:id
B035-2416
lifecycle
previous
Product Category
Teradata Tools and Utilities

System performance can be affected by the EXCPVR or IOSDRIVR options of the INITIAL IOMODE command (described in Chapter 7: “TDP Commands”). The INITIAL IOMODE command sets the input and output mode that TDP uses for channel communication with the Teradata Database.

TDP performance can be constrained by the EXCP option since it limits I/O buffers to 24 bit storage, so fewer buffers are likely available for transferring data between TDP and the Teradata Database.