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Status Submitted
Workspace z/OS
Categories DFSMS RMM
Created by Guest
Created on Dec 10, 2025

RELATED IDEAS

When generating an RPTEXT report in DFRMM, tapes may appear twice due to simultaneous delete and insert operations on the Control Dataset (CDS), and a design change is proposed to ensure consistent data

We are creating an RPTEXT report in DFRMM. It can happen that a tape is listed twice in the report output if the tape previously had the status "scratch" and is now being written by a batch job during the report generation. According to information from IBM support, this can occur if a delete and an insert operation are performed on the Control Dataset (CDS) simultaneously within the same second. From our perspective as a customer, this results in inconsistent data in the DFRMM RPTEXT output. A tape can only ever have one status and should only be assigned to one user or one job at a time. We had a case regarding this behavior and a lengthy discussion. IBM informed us that this behavior was implemented as designed in DFRMM. We therefore propose adjusting this behavior through a design change to ensure that the data in the RPTEXT report is displayed consistently in the future.

Idea priority Urgent

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