Skip to Main Content
IBM Power Ideas Portal


This portal is to open public enhancement requests against IBM Power Systems products, including IBM i. To view all of your ideas submitted to IBM, create and manage groups of Ideas, or create an idea explicitly set to be either visible by all (public) or visible only to you and IBM (private), use the IBM Unified Ideas Portal (https://ideas.ibm.com).


Shape the future of IBM!

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:

Search existing ideas

Start by searching and reviewing ideas and requests to enhance a product or service. Take a look at ideas others have posted, and add a comment, vote, or subscribe to updates on them if they matter to you. If you can't find what you are looking for,

Post your ideas
  1. Post an idea.

  2. Get feedback from the IBM team and other customers to refine your idea.

  3. Follow the idea through the IBM Ideas process.


Specific links you will want to bookmark for future use

Welcome to the IBM Ideas Portal (https://www.ibm.com/ideas) - Use this site to find out additional information and details about the IBM Ideas process and statuses.

IBM Unified Ideas Portal (https://ideas.ibm.com) - Use this site to view all of your ideas, create new ideas for any IBM product, or search for ideas across all of IBM.

ideasibm@us.ibm.com - Use this email to suggest enhancements to the Ideas process or request help from IBM for submitting your Ideas.

Status Not under consideration
Workspace AIX
Created by Guest
Created on Nov 5, 2015

AIX LVM "per node" preferred read option

Add a per node option to specify the logical volume preferred read method.
preferred read is currently a global LV setting. This is not optimal for failover in PowerHA environments. In a SAN environment it is necessary to choose the local LV copy independently on each node to get the best read performance.

Idea priority Medium
  • Guest
    Sep 1, 2020

    It took you 5 years to find this out? I'm impressed.
    This RFE didn't say anything about not changing LVM to achieve the required functionality. Very sad. You're giving away a big possible performance gain.

  • Guest
    Jul 15, 2020

    We save preferred copy value in LVM metadata to be persistent across varyoff/varyon. LVM (metdata) doesn't have any knowledge of which nodes the VG is varied on. Design limitation.

  • Guest
    Jun 3, 2020

    It is good idea if we can setup preferred read per node. We save preferred copy value in LVM metadata to be persistent across varyoff/varyon. LVM (metdata) doesn't have any knowledge of which nodes the VG is varied on. From LVM design it is not possible to provide preferred read per node.

  • Guest
    Feb 10, 2020

    It's 2020. How is it going?

  • Guest
    Aug 29, 2016

    This is not going to be available in 2016 or 2017 fall plan. The earliest we can consider this is in 2018 fall plan, it is too early to decide.

  • Guest
    Nov 6, 2015

    Creating a new RFE based on Community RFE #79352 in product IBM AIX.

  • Guest
    Nov 5, 2015

    I wanted to set this RFE public... the option was not selectable.
    Feel free to change the RFE to public, it might get a few votes more in this case :-)