Overview

You can use the Expert System Interface(ESI), or OPSLINK programming interface, to gain access to some CA OPS/MVS facilities from an application written in a high-level language or in assembler language. Specifically, you can use OPSLINK to:

Execute operator commands.
Execute TSO commands (if running under the TSO TMP interactively or in batch).
Access CA OPS/MVS global variables, update them, or both.

This programming interface is implemented as a subroutine load module also named OPSLINK.

Note: The INITESI parameter must be set to YES, if you are licensed for and are using the ESI. When the INITESI parameter is set to NO, most ESI requests will fail and the following message will appear in the OPSLOG/SYSLOG:

OPS9526H ESI FEATURE HAS NOT BEEN LICENSED