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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
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.
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