IBM Power 9 Scale-Out Server

IBM Power S924 (9009-42A)

IBM Power S924 (9009-42A) profile covering specifications, lifecycle status, sourcing fit, and upgrade planning context.

Machine type: 9009-42A Software tier: P20

IBM Power S924 (9009-42A) is part of the Scale-out A-generation Power 9 family. Treat it as an installed-base decision point: confirm the exact machine type, support status, IBM i release path, and parts plan before spending money on upgrades.

At a Glance

Machine Type9009-42A
Form Factor4U rack, 1 or 2 sockets
Processor ScaleUp to 24 cores
Memory CeilingUp to 4 TB DDR4

Structured Specifications

IBM Power S924 (9009-42A) specification summary

AreaDetail
FamilyScale-out A-generation
Storage and I/OA-generation internal storage and PCIe expansion options
PCIePCIe Gen4 and Gen3 I/O slots
Operating systemsIBM i, AIX, Linux, VIOS
Software tierP20

IBM lists 31-Jan-2026 as transition to end of support services for 9009-42A.

Owner Decision

Keep

Works when capacity, support, backup, and release level are stable.

Expand

Works when parts are available and the upgrade buys a short, known runway.

Maintain

Works when service coverage is clear and replacement is already planned.

Replace

Works when IBM i 7.6, warranty reset, stronger architecture, or longer runway matter.

Sources

Midland publishes S924 range signals around 20k to 28.3k, configuration-dependent.

Reference Documents

IBM Power Systems S922, S914, and S924 Technical Overview and Introduction

IBM Redpaper for the original Power 9 S914, S922, and S924 A-generation systems. ... IBM Redbooks

Frequently Asked

What is 9009-42A?

9009-42A is the machine type-model for the original A-generation IBM Power S924 Power 9 server.

Your 4 next moves with a Power 9

Every Power 9 owner lands on one of these. You can mix them, too. Keeping or upgrading buys time while you plan a replacement.

  1. Keep it running

    Your Power 9 does not stop working when IBM support ends. Third-party maintenance can cover parts and repairs, often for less than IBM charged.

    Best when the server is stable and you need one or two more years.

    Compare third-party maintenance
  2. Upgrade the server you have

    More memory, bigger drives, or a faster network or Fibre Channel card can buy real time without a new server. Every part has an IBM feature code, so the upgrade starts there.

    Best when you are running out of room, not out of support.

    Browse Power 9 upgrades
  3. You are reading about this move

    Buy a used or refurbished Power 9

    A matching used Power 9 makes a cheap spare, test box, or short bridge. Match the machine type first, because an A model and a G model carry different support dates.

    Best for a spare, a test system, or a stopgap of two years or less.

    Compare new, used, and refurbished
  4. Replace it with Power 10 or Power 11

    If you need IBM i 7.6, or want five or more years of IBM support, price a replacement. IBM i 7.6 does not run on any Power 9.

    Best when the server has to last past 2027 or the software needs a newer release.

    Compare Power 9 vs Power 11