IBM Data and AI Ideas Portal for Customers


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We invite you to shape the future of IBM, including product roadmaps, by submitting ideas that matter to you the most. Here's how it works:

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Post ideas and requests to enhance a product or service. Take a look at ideas others have posted and upvote them if they matter to you,

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Additional Information

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Status Not under consideration
Created by Guest
Created on Mar 8, 2018

current IMS log reader TAPE contention behavior needs to be improved during change stream activation

Please refer to the PMR 02209,69G,760 and APAR PI71320 submitter page.
--- start of the APAR quotation ---
The current IMS log reader VTS contention behavior needs to be improved. Contention occurs when the IMS log reader attempts to access an archive log on virtual or real tape that is currently being accessed by another address space.
During change stream activation if this kind of contention is detected the stream is deactivated resulting in replication stopping in error for the subscription(s) that caused the stream to be activated in the first place.
During normal log reading operations when VTS contention is detected the software attempts to re-allocate the file ten times before reporting the stream in error. This retry process typically takes less than one minute to complete which is not long enough.
--- end of the APAR quotation ---

  • Admin
    Eric Su
    May 21, 2021

    [IBM Update]

    Hi,

    Thank you for filing this requirement and for your interest in keeping our IMS/VSAM Data Replication technologies vital and successful. We depend on your continued interest and ideas to help ensure our products keep pace with market needs and industry standards.

    Although we do agree that your request is valid, after monitoring your request for more customer demand over the last few years and applying other relevant evaluation criteria, unfortunately we won't be able to accept your request at this time. However, if there is still an important business need, we encourage you to file a new idea accompanied with any additional information that could help us prioritize the requirement in the future.