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 (

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 ( - Use this site to find out additional information and details about the IBM Ideas process and statuses.

IBM Unified Ideas Portal ( - Use this site to view all of your ideas, create new ideas for any IBM product, or search for ideas across all of IBM. - Use this email to suggest enhancements to the Ideas process or request help from IBM for submitting your Ideas.

Status Future consideration
Workspace AIX
Created by Guest
Created on Nov 27, 2018

Increased scaling with active MWC

AIX active Mirror Write Consistency (MWC) has scaling limitations in big LPARs with lots of data.
According to PMRs this is because of scalability limitations in the current AIX implementation.
To be able to use that feature also in the future, the design should be improved to also support bigger
amounts of data.

Idea priority Urgent
  • Guest
    Dec 6, 2018

    Thank your for your submission. IBM has no plans or strategic focus at this time to further enhance the AIX active MWC technology. For environments that demand higher levels of I/O scale, AIX passive MWC technology is recommended. Another option is to consider replication technologies available in most enterprise class storage subsystem products as an alternative to host based mirroring.

    IBM will keep this RFE active for consideration in future AIX releases and may potentially consider further enhancing passive MWC to include some of the benefits of active MWC without the known scaling limits of the current active MWC design.