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Status Not under consideration
Workspace AIX
Created by Guest
Created on Sep 11, 2018

AIX mksysb not work on rootvg disk with multiple paths

1. Before backing up system we are required to run pprootdev fix . If you do not execute this command, backup process will fail right away.
2. After running pprootdev fix, we back up host using mksysb;
3. Because the AIX OS is not currently designed to deal with duplicate paths to devices without third-party software support, before starting the restore process you must reduce the number of paths to your boot device to one.
We would be at risk during this process, should SAN Path fails from IBM AIX Server to EMC Storage. It is due to single path to rootvg disk is in place during mksysb operation.

Idea priority Urgent
  • Guest
    Apr 25, 2020

    At this time, AIX does not have plans to address this RFE. Suggest transitioning to MPIO (PCM) for EMC multipathing as the approach to use.

  • Guest
    Mar 26, 2020

    A solution is acknowledged to be of some value and will be given consideration for plan inclusion in future planning cycles. No commitment is made to deliver the RFE.

  • Guest
    Sep 11, 2018

    PowerPath, HDLM, and legacy SDD are all bypassing the standard AIX way to handle multiple paths in the kernel.

    The IBM direction has been MPIO for quite some time. You should install the EMC ODM fileset and remove PowerPath.