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Status Future consideration
Workspace IBM i
Categories Save and Restore
Created by Guest
Created on Apr 11, 2018

RELATED IDEAS

Add physical bytes used on media to QSRSAV format for save output

See this idea on ideas.ibm.com

We currently have no way to know how much space is used and how much is available on our LTO media until we fill the tape. The save commands support output to a file in QSRSAV format, which includes the original size of the objects that were saved, but we do not know how well these objects compressed, and the size reported for logical files is there total size including the access paths even if the latter is not being saved.

The products we use for our Windows and Linux server backups are all able to tell us how many bytes were physically used on the tape after compression. Ideally, I would like to see this value in a new field on the QSRSAV format so we could calculate the actual bytes used vs. the known media capacity. If this could only be provided as a total for the tape file (volume sequence) and not individual objects that would still be a lot better than what we have now. Alternatively, if there is some way to compute this from the SROPSN "Starting position in file" value, documentation of that would be useful.

We do not use BRMS and have no desired to do so as we have our own internal software for managing volumes across multiple different platforms.


Use Case:

Monitoring tape media capacity used.


Idea priority Medium
  • Guest
    Reply
    |     Mar 24, 2021

    IBM will use this request as input to planning but no commitment is made or implied. This request will be updated in the future if IBM implements it. IBM will use votes and comments from others in the community to help prioritize this request.

  • Guest
    Reply
    |     Jun 24, 2020

    This would be extremely useful right now as we are planning our next generation of hardware upgrades and trying to figure out if we should upgrade tape from LTO-7 to LTO-8/9 or implement a VTL solution.

  • Guest
    Reply
    |     Apr 13, 2018

    IBM has received the requirement and is evaluating it. IBM will provide a response after evaluation is complete.

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