Skip to Main Content
IBM Power 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:

Post your ideas

Start by posting ideas and requests to this portal to enhance a Power product or service. Take a look at ideas others have posted and upvote them if they matter to you,

  1. Post an idea

  2. Upvote ideas and add comments to ideas that matter most to you

  3. Get feedback from the IBM team to refine your idea

Help IBM prioritize your ideas and requests

The IBM team may need your help to refine the ideas so they may ask for more information or feedback. The Power teams will then decide if they can begin working on your idea. If they can start during the next development cycle, they will put the idea on the priority list. Each team at IBM works on a different schedule, where some ideas can be implemented right away, others may be placed on a different schedule.

Receive notification on the decision

Some ideas can be implemented at IBM, while others may not fit within the development plans for the product. In either case, the team will let you know as soon as possible. In some cases, we may be able to find alternatives for ideas which cannot be implemented in a reasonable time.


Specific link you will want to bookmark for future use

IBM Unified Ideas Portal - https://ideas.ibm.com/ - Use this site to create or search for existing Ideas across all IBM products that are outside of Power, and track all of your personal interactions with all Ideas.

Status Future consideration
Workspace IBM i
Categories Storage
Created by Guest
Created on Dec 2, 2020

Support n-way DASD mirroring

We would like to be able to mirror storage across more than two physical DASD units per logical storage unit.


Use Case:

Mirroring currently only supports two DASD units, so it only has protection against a single DASD device failure in the pair. While the probability of the mirrored unit failing is low, the rebuild process puts extreme load on the remaining unit and can take a very long time with large modern drives. Maintenance to IOAs or expansion EMMs can also cause a loss of mirroring across a large number of units at once, increase exposure to a failure.

While RAID-6 supports two-drive redundancy, RAID is not an acceptable solution to our organization as we have had several instances in the past where an IOA, expansion frame, or even a single failed DASD unit has prevented access to the entire array, resulting in a system halt and/or corrupted data..


Idea priority Medium