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
Created by Guest
Created on Dec 12, 2018

Increase NFS max Wsize and Rsize

Increase NFS max Wsize and Rsize to 512KB or maximum allowed via NFS v3. Iseries NFS client is currently using TCP to communicate with NFS server.

Our NFS platform will allow much more than the current Power System maximum of 32,768 Bytes.

Use Case:

System: Fitness Industry Billing System
Currently migrating from Content Manager for DB2 to Content Manager on Demand. Migrating 50 + Million images / 40TB from CM to CMOD utilizing NFS to store the static images for CMOD.

Idea priority High
  • Guest
    May 3, 2022
    This support is available in IBM i 7.5.
    The maximum rsize and wsize for NFS is now 512K bytes when using TCP. The maximum when using UDP remains at 65536. The default has not changed so in order to use the larger size, it must be specified.
    Additionally, NFS has changed to use TCP by default. In order to use UDP, ADDMFS/MOUNT options must specify 'UDP'.
  • Guest
    Sep 7, 2021

    We understand this request.

  • Guest
    Oct 15, 2019

    The CAAC has reviewed this requirement and recommends that IBM view this as a high priority requirement that is important to be addressed. Keeping up with standards is always a good idea, and we want to ensure the banking industry has function that it needs.

    Background: The COMMON Americas Advisory Council (CAAC) members have a broad range of experience in working with small and medium-sized IBM i customers. CAAC 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 CAAC, see

    For more details about CAAC's role with RFEs, see

    Nancy Uthke-Schmucki - CAAC Program Manager

  • Guest
    Jan 2, 2019

    Thank you for submitting this request. We agree that this is a valid request and will be investigating the effort to provide this support.

  • Guest
    Dec 14, 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 - IFS (Integrated File System) and Servers
    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 - Networking
    Operating system - IBM i
    Source - None


Improve NFS Client performance increasing wsize e rsize max size

The actual cache parameter wsize and rsize of the NFS Client on IBMi are limited on a max of 32768 byte , this is a limit on performance on copy over NFS mount , especially with 10Gb ethernet connection . on other platform the max size is 1048576 ...
over 2 years ago in IBM i / IFS (Integrated File System) and Servers 4 Delivered