Previous Topic: Data Storage Command LanguageNext Topic: DSCL Graceful Shutdown


Coding Multiple Action Commands

Multiple action commands can be specified for a single candidate command, SCAN or FIND, to limit system overhead and do additional processing. However, care should be taken since all commands stacked together will use the information gathered at the time the candidate command is executed. Any modifications to the data set done by one command may or may not be seen by the other commands.

For instance, if a RELEASE command and a REPORT command are coded together, the report produced will contain the original or unreleased space information Coding the RELEASE command before or after the REPORT command does not make a difference. If the data set was allocated with 100 tracks when the SCAN/FIND command processed it, and that same data set was using only 50 tracks after the RELEASE processing completed, the information that will appear on the report will be the original dataset allocation of 100 tracks.