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Status Not under consideration
Workspace IBM i
Categories Performance Tools
Created by Guest
Created on Mar 5, 2021

Provide easy to use "IBM i internal disk performance modeling tool" which supports latest technologies (SSD, NVMe)

Simple and easy to use IBM i internal disk performance modeling tool which supports latest internal storage technologies (SSD/NVMe) is desirable to configure, propose, buy new IBM i server.

IBM supplied storage modeling tools do not fulfill the requirements, e.g.
- "SSD Analyzer Tool for IBM i (V7R1 and V7R2)" -> Not updated for 7.3/7.4 and NVMe
- "SSD Improvements Estimator" in iDoctor -> English only, chargeable, very professional and too complex for rough estimation, no practical estimation scenario
- "Disk Magic for IBM" -> Supports only old HDDs (8.59~282.2GB) for iSeries, no plan to update
- "IBM Storage Modeller" -> No support for IBM i internal storage
- "IBM Systems Workload Estimator" -> Cannot select 7.4 for new estimation, NVMe is not listed in "Disk Options"

Also, information for disk performance of IBM i is limited or obsolete.
- "IBM i on Power - Performance FAQ November 23, 2020" -> Just one paragraph for NVMe
- "IBM Power Systems Performance Capabilities Reference 7.4 July 2020" -> No description for SSD/NVMe

Use Case:

With such tool, IBM i users will be able to justify to replace HDD to SSD/NVMe.

At the time of writing this RFE, most IBM i users tend to stay HDD because it is cheaper and safer (no worry about lifetime, support, etc.) . Only leading users who consider SSD/NVMe is the way to go adopt new technologies.

Fast storage is very important for users who plan to deploy new workload (e.g. SQL, OSS apps) for DX, in addition to legacy 5250/batch workloads.

Idea priority Medium
  • Guest
    Nov 29, 2021

    Thank you for submitting this request, but IBM is declining this RFE. This would require a large effort that does not fit in the near term with the other priorities for the team.

  • Guest
    Jul 12, 2021

    The CEAC has reviewed this requirement and recommends that IBM view this as a HIGH priority requirement that is important to address. Performance Monitoring and modelling are a key part of designing and selling systems in the modern world. Adding this functionality will allow us to deliver on customer needs.

    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 crucial 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.

    To find out how CEAC help to shape the future of IBM i, see CEAC @ and the article "The Five Hottest IBM i RFEs Of The Quarter" at

    Therese Eaton – CEAC Program Manager, IBM