IBM Power S1022 (9105-22A)
See whether the 9105-22A fits your IBM i workload before you price it. This record brings the processor options, P10 tier, memory, storage, lifecycle risk, and quote checks together.
The 9105-22A is the machine type of the IBM Power S1022, the dense two-socket 2U member of the Power 10 scale-out line. It reaches 40 cores and 4 TB of memory in two rack units, and it stays at software tier P10 across every processor feature, which makes it the Power 10 machine type you can grow into without a licensing surprise.
The processor range on this machine type is where the real decision sits: 12, 16 or 20 cores per socket, and the clock falls as the core count rises. A 40-core build at a 2.45 GHz base is a consolidation machine. A 24-core build at a higher base clock finishes a single batch job sooner. Both are 9105-22A systems and they behave very differently.
IBM 9105-22A datasheet
IBM Power S1022 (9105-22A) published specifications
| Specification | Value |
|---|---|
| Machine type-model | 9105-22A |
| Generation | IBM Power 10 |
| Sockets | 1 or 2 |
| Maximum cores | 40 |
| Memory | Up to 4 TB |
| Internal storage | Up to 51.2 TB NVMe |
| Operating systems | IBM i, AIX, Linux |
| Software tier | P10 |
Figures are the published maximums for this machine type. A specific installed system is defined by its processor feature code and activated core count, not by the machine type alone.
Processor feature codes for the 9105-22A
S1022 processor options
| Cores per socket | Maximum cores | Typical clock range (GHz) | Module |
|---|---|---|---|
| 12 | 24 | 2.90 ... 4.0 | DCM |
| 16 | 32 | 2.75 ... 4.0 | DCM |
| 20 | 40 | 2.45 ... 3.90 | DCM |
Clock and core count trade against each other on every feature. The 12-core socket runs the highest base frequency; the 20-core socket does the most total work.
Selected Power 10 models were withdrawn from marketing effective 31 July 2026. Installed systems are unaffected, but sourcing a processor upgrade or an MES expansion now depends on availability for that specific feature code. Confirm current supply before building a plan around adding cores.
How to confirm you have a 9105-22A
From IBM i
DSPSYSVAL QMODEL returns the model portion and DSPSYSVAL QPRCFEAT returns the processor feature code. Those two values identify a 9105-22A build exactly, which is what a vendor needs to quote parts or an upgrade.
From AIX, Linux or VIOS
lsconf reports the machine type and model in the first lines of output. prtconf gives the same plus processor implementation and clock speed.
From the HMC
Managed system properties shows machine type-model and serial together with installed against activated cores. On Power 10 those two core numbers frequently differ because of capacity upgrade on demand.
From the bezel
The 9105-22A and the 9105-22B are both 2U two-socket machines and look identical racked. The suffix on the label is the only reliable way to tell an S1022 from an S1022s.
Where it makes sense in 2026
Mainstream IBM i, AIX, and Linux consolidation where a dense 2U footprint and P10 tier economics fit.
Pricing and lifecycle logic
Strong refurbished and installed-base decision candidate. Confirm software tier, transfer rules, firmware path, support terms, and Power 11 comparison economics before treating the hardware price as final.
Sources
- https://www.ibm.com/products/power-s1022
- https://www.ibm.com/docs/en/power10?topic=9105-22a-power-s1022
- https://www.redbooks.ibm.com/abstracts/redp5675.html
Next steps for an S1022
Review processor choices on the Power 10 CPU page, compare the larger system in the S1024 record, or build a quote checklist before contacting a seller.
Related
IBM Power S1012 (9028-21B)
A compact one-socket Power 10 system for small IBM i, edge, and branch workloads where P05/P10 economics and a smaller footprint matter.
IBM Power S1014 (9105-41B)
A one-socket 4U or tower Power 10 server for smaller IBM i and mixed AIX/Linux workloads that need more memory and storage headroom than S1012.
IBM Power S1022s (9105-22B)
A smaller dual-socket 2U scale-out variant for IBM i environments that need S1022-style packaging with lower core ceilings.
IBM Power S1024 (9105-42A)
See whether the 9105-42A earns its higher software tier. Compare processor options, P20 or P30 exposure, memory, storage, lifecycle risk, and Power 11 before requesting a quote.