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Status Delivered
Workspace AIX
Created by Guest
Created on Aug 2, 2017

RELATED IDEAS

AIX mirror pool enhancements

Basic LVM mirroring has been available in AIX for years and it is great. The added value of mirror pools should come from the ease in maintaining for example 2 copies across 2 remote sites. It should help in making absolutely sure there is a complete copy on each site and help preventing any misconfiguration. If “super strictness” is specified and the disks are assigned to the correct pool, it should not be possible to end up in a situation where mirroring is not protecting data against single disk or site failure. For that, everything needs to be mirrored and there needs to be a copy in each pool.
Currently Mirror Pools are not doing that. Not only is it possible to end up in violating situations, the LVM commands don't behave in a consistent manner.

See attachment for complete explanation, but suggested enhancements include:
-a command to check mirror pool state
-consistent output for lsvg and lslv
-enforcement of mirror pool strictness
-...

Idea priority Medium
  • Guest
    Reply
    |     Oct 21, 2021

    Available in the December 2021 GA of AIX 7.3

  • Guest
    Reply
    |     Aug 2, 2017

    Attachment (Description): Explanation of the current situation and what could be improved.

    AIX Mirror Pool...
    AIX Mirror Pools.pdf
     AIX Mirror Pools.pdf
    Open full size
    AIX Mirror Pools.pdf

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