IDIS subsystem requirements for deletion of migrated tightly-coupled associated dump data sets

Deletion of migrated tightly-coupled associated dump data sets is performed via a spawned BPX batch region. This is done to avoid potential performance issues.

The IDIS subsystem creates, and subsequently deletes, a "dummy" file in the path determined in the following order:

1. Specified via the IDIJLIB DD statement (for details, see "Specifying an IDIJLIB DD statement" below).
2. The OMVS segment home path for the IDIS subsystem user ID
3. /tmp

If unsuccessful in using any of these paths, message IDI0192I is issued.