Abstract: Possible data loss for z/OS 1.8, 1.9 and 1.10 with fix and HSM PATCH enabled for OA22507 Description: Only users of HSM with the PATCH enabled for APAR OA22507 to change GDG scratch processing during migration are affected. With this function enabled HSM may erroneously invalidate data sets which would prevent the data sets from being moved to a new tape volume during RECYCLE processing. The data may be lost if no backup exists. p> Please see APAR OA30149 for additional information and actions to determine exposure. Recommended Actions: Please remove the PATCH to prevent the problem until fix for OA30149 is available and can be installed.
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