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Status Not under consideration
Workspace IBM i
Categories Storage
Created by Guest
Created on Sep 26, 2017

Skew curve from IBM i

Currently only storage boxes can create a skew curve from their performance data to show how hot the data is I.e 10% of the data is used by 90% of th I/O's.
We would like to achieve the same using IBM i tools (be it performance data, idoctor, PEX, ...)


Use Case:

IBM i admins do not need to deal with storage tools to see data distribution/skew information and could use the already well known tools.


Idea priority Medium
  • Guest
    Nov 2, 2021

    At this time we are not able to schedule this work for a future release.

  • Guest
    Sep 29, 2020

    This RFE is moving to Under Consideration for planning purposes.

  • Guest
    Apr 13, 2020

    Hi Eric,
    sorry for not responding - didn't see your update!
    We would like to have same possibility available on IBM i like it's currently available with IBM STAT tool.
    https://www.ibm.com/support/pages/ibm-storage-tier-advisor-tool
    To have all performance data in one place it would be great to have in in tools listed in my request.
    Regards, Wolfgang

  • Guest
    Apr 10, 2020

    Please see Eric's request for more info.

  • Guest
    Aug 9, 2019

    It's not 100% clear to me what you want to do. However, I think it is likely that either a PEX physical disk I/O trace or DiskWatcher can provide what you are looking for. If you provide some more details I can check.

    Eric Barsness, ericbar@us.ibm.com
    IBM i Performance Team Lead
    Lab Services Power Systems Delivery Practice
    IBM Systems Group - Rochester, MN USA
    Mobile 507-993-5584