Specifying or changing GTF trace options through system prompting

After you enter the START command, GTF issues message AHL100A or AHL125A which allows you to specify or change trace options. If the cataloged procedure or START command did not contain a member of predefined options, GTF issues message AHL100A, which allows you to enter trace options. If the procedure or command did include a member of predefined options, GTF identifies those options by issuing the console messages AHL121I and AHL103I. Then you can accept the options, or reject and specify new options.

GTF allows overlapping of trace options when multiple instances are active. This sequence of messages appears as:

AHL121I TRACE OPTION INPUT INDICATED FROM MEMBER memname OF PDS dsname
AHL103I TRACE OPTIONS SELECTED -
keywd=(value),...,keywd=(value)
keywd,keywd,...,keywd
AHL125A RESPECIFY TRACE OPTIONS OR REPLY U

Note: If you specify NOPROMPT or NP on the START GTF command, the system will not issue message AHL125A to request the respecification of trace options or the continuation of initialization.

If you choose to reject any options in the member, you are rejecting all of the options specified in that member. Respecifying trace options does not modify the options in the data set member.

The format of the response is:

TRACE=trace option[,trace option]...

The trace options determine the amount of storage GTF requires. See Determining GTF's storage requirements.

GTF will accept the trace options listed under GTF trace options.