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 Delivered
Workspace IBM i
Categories Storage
Created by Guest
Created on Jan 25, 2018

shrink size of load source disk unit

Please add ability to shrink load source when using disk unit migration.

We often face the problem when we migrate IBM i systems with internal disk units to external attached disks that the internal disk units are way to large.

Use Case:

e.g. a system with 8 internal disk units each ~ 250 GB in size is migrated to external storage.
In order to follow best practices we want to have more disk arms and use ~ 16 x 125 GB disk units (or even smaller disk units but more of them).
Currently this would be only possible when using 250 GB load source and all other disks could be smaller in size. But this is not following best practices either.

It would be fine to use STRASPBAL to remove all possible data from load source before running the disk unit replacement procedure from manual IPL/DST if needed.

Idea priority Medium
  • Guest
    Sep 30, 2020

    Hello IBM_Systems_Developer,

    Being a big fan of the GUI Navigator for i I wonder if this functionality is also available under "Disk Management" of Nav4i?

    Can you please help me there?

    Greetings Rudi.

  • Guest
    Jul 14, 2020

    thanks for the update, looks promising! If it works, it satisfies this RFE ;)
    Thank you, greetings, Wolfgang

  • Guest
    Jul 9, 2020

    .Sorry, looks like the URL didn't go through yesterday

  • Guest
    Jul 8, 2020

    Does this support satisfy the requirement?

  • Guest
    Mar 19, 2018

    The CEAC has reviewed this requirement and recommends that IBM view this as a medium priority requirement that should be addressed.

    This is an important RFE because disk imbalance can lead to performance problems.
    It can act as a inhibitor to people moving to external storage and virtualized environments.

    Background: The COMMON Europe Advisory Council (CEAC) members have a broad range of experience in working with small and medium-sized IBM i customers. CEAC has a key role in working with IBM i development to help assess the value and impact of individual RFEs on the broader IBM i community, and has therefore reviewed your RFE.

    For more information about CEAC, see

    Dawn May - CEAC Program Manager