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 Oct 30, 2018

Recover space on thin provisioned disks

IBM i doesn't currently support TRIM or UNMAP primitives which would allow the OS to mark space as free for the storage to reclaim. This limits the benefits of Thin Provisioning since once space is consumed it is never recovered during the life of the disk. Even doing some kind of garbage collection filling the unused space with zeroes would be an improvement since current storages (Storwize for example) have good zero detection/pattern removal/compression.

Use Case:

Allow the customer to better utilize their storage capacity leveraging the modern features provided by the storages.

Idea priority Low
  • Guest
    Nov 6, 2018

    IBM i already supports unmap. See:!/wiki/IBM%20i%20Technology%20Updates/page/IBM%20i%20Functional%20Enhancements%20Details

  • Guest
    Nov 6, 2018

    Due to processing by IBM, this request was reassigned to have the following updated attributes:
    Brand - Servers and Systems Software
    Product family - Power Systems
    Product - IBM i
    Component - Storage
    Operating system - IBM i
    Source - None

    For recording keeping, the previous attributes were:
    Brand - Servers and Systems Software
    Product family - Power Systems
    Product - IBM i
    Component - Core OS
    Operating system - IBM i
    Source - None