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.

Add a new idea Subscribe
Status Delivered
Workspace AIX
Created by Guest
Created on May 29, 2019

RELATED IDEAS

AIX Filesystem shrink monitoring and performance #chfs command

AIX filesystem shrink can take a significant length of time for a large shrink operation (hours). During this time the filesystem is frozen, impacting applications.
There are no tools to monitor the progress or to terminate the operation cleanly if it is needed to restore the filesystem to a useable state prior to shrink completion.

We are requesting:
1. that shrink should not freeze the filesystem
2. a method to cleanly abort filesystem shrink
3. a progress monitor to guage the time to completion
4. better performance would be nice to have.

Idea priority High
  • Guest
    Reply
    |     Dec 11, 2020

    shrinkfs improvements are delivered in AIX 7.2 TL 5. Improved shrinkfs functionality minimizes the amount of time the filesystem is quiesced. Also added a progress indicator to the shrinkfs command output.

  • Guest
    Reply
    |     Jun 18, 2019

    I agree on this. Often, I will set up a loop which shrinks by one PP at a time, so that I can queue up a termination for the loop. On large PP sizes, this still can be minutes of no I/O. The defrag and compact operation that is used to free up the trailing extents needs to be interruptible, chunked smaller, and throttled between chunks so that normal operations can continue. This would likely make very messy filesystems take a lot longer to compact and reduce, but it would allow the filesystems to continue to operate.

By clicking the "Post Comment" or "Submit Idea" button, you are agreeing to the IBM Ideas Portal Terms of Use.
Do not place IBM confidential, company confidential, or personal information into any field.