For data sets selected for processing, CA Disk releases idle space using an EXCLUSIVE ENQ (DISP=OLD). If a data set is in use by another task, a diagnostic message is issued and the release is not attempted.
The User Exit USERSENQ is invalid for Idle Space Release Processing. If you specify this User Exit, an error message is issued and a user abend occurs.
Other messages are issued only for those cases where an attempted space release failed. Use sysparm RLSEDIAG to generate diagnostic messages with the reasons why data sets are bypassed.
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