IBM Power S1122 (9824-22A)
A dense, dual-socket 2U scale-out server offering up to 60 Power 11 cores and 4 TB of DDR5 memory, IBM's mainstream choice for growing IBM i, AIX, and Linux environments.
The 9824-22A is the machine type of the IBM Power S1122, the two-socket 2U workhorse of the Power 11 scale-out line. It has the widest processor range of any Power 11 machine type: five feature codes covering everything from a 4-core entry single-chip module to a 60-core dual-chip build, all in the same 2U chassis and all at software tier P10.
That flat P10 tier is the reason this machine type matters commercially. On the S1124 above it, adding cores can push the system from P20 into P30 and change the software bill permanently. On the 9824-22A it does not. You can scale from 4 cores to 60 without a tier change, which makes it the safest Power 11 machine type to buy with headroom you have not yet grown into.
S1122 at a glance
Processor options
S1122 processor feature codes
eSCM (entry single-chip module) options favor per-core throughput; DCM (dual-chip module) options favor total capacity for consolidation. Maximum CPW per LPAR is 118,200 except on the 4-core ERGR feature.
| Feature Code | Cores | Clock Speed | Module | CPW | rPerf ST | rPerf SMT2 | rPerf SMT4 | rPerf SMT8 |
|---|---|---|---|---|---|---|---|---|
| ERGR | 4-core | 3.6-4.0 GHz | eSCM, 1-socket | 118,200 | Not published | Not published | Not published | Not published |
| ERGR | 8-core | 3.6-4.0 GHz | eSCM, 1-socket | 236,400 | 79.9 | 159.8 | 221.4 | 292.9 |
| ERGQ | 10-core | 3.05-4.0 GHz | eSCM, 1-socket | 124,500 | Not published | Not published | Not published | Not published |
| EBG8 | 16-core | 3.0-4.2 GHz | DCM, 1-socket | 124,500 | Not published | Not published | Not published | Not published |
| ERGQ | 20-core | 3.05-4.0 GHz | eSCM, 2-socket | 123,400 | 173.2 | 338.1 | 482.8 | 626.7 |
| EBG9 | 24-core | 2.65-4.15 GHz | DCM, 1-socket | 124,500 | Not published | Not published | Not published | Not published |
| EBGA | 30-core | 2.4-3.95 GHz | DCM, 1-socket | 124,500 | Not published | Not published | Not published | Not published |
| EBG8 | 32-core | 3.0-4.2 GHz | DCM, 2-socket | 123,800 | 294.2 | 567.2 | 806.9 | 1,040.3 |
| EBG9 | 48-core | 2.65-4.15 GHz | DCM, 2-socket | 123,800 | 420.6 | 798.4 | 1,060.8 | 1,357.8 |
| EBGA | 60-core | 2.4-3.95 GHz | DCM, 2-socket | 117,100 | 488.2 | 913.4 | 1,191.8 | 1,531.9 |
Memory, storage, and I/O
Platform configuration limits
| Area | S1122 Detail |
|---|---|
| Memory | 64 GB to 4 TB DDR5 across 32 DDIMM slots |
| Internal storage | Up to 122.4 TB NVMe (8x 15.3 TB) or 51.2 TB (8x 6.4 TB) |
| Cache | 2 MB L2 and 8 MB L3 per core |
| Direct I/O | 4 direct PCIe slots (Gen4 x16 or Gen5 x8 mix) |
| Expansion | 1 NED24 NVMe expansion drawer, 1 Gen4 I/O expansion drawer (12 slots) |
Specs per the IBM Power S1122 9824-22A product listing at Midland Information Systems.
Example configuration pricing
Illustrative S1122 configurations (Midland Information Systems, reference pricing)
| Configuration | Hardware | IBM i Software | Total |
|---|---|---|---|
| 1 IBM i partition, 10 users, 128 GB | $33,303.98 | $36,664.00 | $69,967.98 |
| 1 IBM i partition, unlimited users, 256 GB | $43,601.98 | $84,698.00 | $128,299.98 |
| 4 IBM i partitions, unlimited users, 256 GB | $43,601.98 | $176,141.00 | $219,742.98 |
These are example configurations published by Midland Information Systems, not IBM list prices. Actual quotes vary by processor feature, memory, storage, services, and software tier.
See our Power 11 pricing model page for how hardware, IBM i software tier, and services combine into a final configuration price.
IBM 9824-22A datasheet
IBM Power S1122 (9824-22A) published specifications
| Specification | Value |
|---|---|
| Machine type-model | 9824-22A |
| Generation | IBM Power 11 |
| Sockets | 1 or 2 |
| Maximum cores | 60 in a dual-socket build |
| Memory | 64 GB to 4 TB DDR5 across 32 DDIMM slots |
| Cache | 2 MB L2 and 8 MB L3 per core |
| Internal storage | 122.4 TB NVMe (8x 15.3 TB) or 51.2 TB (8x 6.4 TB) |
| PCIe | 4 direct slots, Gen4 x16 or Gen5 x8 mix |
| I/O expansion | 1 NED24 NVMe drawer and 1 Gen4 I/O drawer (12 slots) |
| Maximum CPW per LPAR | 118,200, except on the 4-core ERGR feature |
| 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.
How to confirm you have a 9824-22A
From IBM i
DSPSYSVAL QMODEL returns the model portion and DSPSYSVAL QPRCFEAT returns the processor feature code. Together those two values identify a 9824-22A build exactly, which is more than the S1122 name alone tells a vendor.
From AIX, Linux or VIOS
lsconf reports the machine type and model on the first lines of output. prtconf gives the same alongside processor implementation and clock speed.
From the HMC
Managed system properties shows the machine type-model and serial together, plus installed against activated cores. This is the view to screenshot when requesting a quote.
From the bezel
The 9824-22A is a full-width 2U chassis, distinguishing it from the half-width 9242-21B. The machine type-model and serial are on the front label.
Next steps for a 9824-22A
All five processor features are compared against the rest of the family on the Power 11 CPU page, and the full listing with per-feature rPerf sits at IBM Power S1122. See Power 11 specs for how it compares against the S1124 and Power 11 pricing for cost drivers. Coming from an older machine, the IBM i Power 11 migration guide covers what changes around it.
Sources
- IBM Power 11 Scale-Out Servers Redbook ... IBM Redbooks
Reference Documents
Related
IBM Power S1112 (9242-21B / 9242-21T)
The entry point into the IBM Power 11 generation: a single-socket, half-width 2U rack or tower system built for branch, edge, and smaller IBM i, AIX, and Linux deployments.
IBM Power S1124 (9824-42A)
A quad-socket-capable, high-performance 4U scale-out server offering up to 60 Power 11 cores and 8 TB of DDR5 memory, built for enterprises and regional data centers.
IBM Power L1122 (9856-22H)
The Linux-optimized sibling of the S1122: a dual-socket 2U server with the same hardware ceiling but licensed for Linux-first environments, with limited AIX/IBM i core use.
IBM Power L1124 (9856-42H)
The Linux-optimized sibling of the S1124: a high-throughput scale-out server for open-source databases and Red Hat OpenShift, with the same DCM processor ceiling as the S1124.
Related Reading
CPW and rPerf Explained: How to Actually Compare Power 11 Processor Options
CPW and rPerf are IBM's relative-performance benchmarks for IBM i and AIX/Linux respectively. Here is how to read them correctly when comparing Power 11 feature codes.
HMC v11 Requirements for Power 11: What Changed From 7063-CR1
Every Power11 server requires HMC v11 on either the 7063-CR2 hardware appliance or IBM's vHMC software appliance. The prior 7063-CR1 is not supported.
Frequently Asked
What are the IBM Power 11 model numbers?
There are seven current IBM Power 11 models: the entry S1112 (machine type 9242-21B rack, 9242-21T tower), the scale-out S1122 (9824-22A) and S1124 (9824-42A), the Linux-optimized L1122 (9856-22H) and L1124 (9856-42H), and the enterprise scale-up E1150 (9043-MRU) and flagship E1180 (9080-HEU). See our full Power 11 model directory for structured specs on each.
How much does an IBM Power 11 server cost?
IBM does not publish fixed list prices for Power 11 hardware. Total cost depends on the processor feature code, memory, storage, IBM i/AIX/Linux software tier, and services. As a real published example, Midland Information Systems shows a single-partition IBM i S1122 configuration (10 users, 128 GB memory) running roughly $69,968 total (hardware plus software). Larger, unlimited-user configurations run well over $200,000. See our Power 11 pricing page for the full pricing model.
What is the difference between the Power S1122 and S1124?
Both share the 9824 machine-type family and a similar 60-core ceiling, but the S1124's EP3X/EP3H/EP3Y processor options deliver roughly 3.5x to 10x higher CPW than equivalent S1122 core counts, at the cost of stepping up into the P20 or P30 IBM i software tier instead of the S1122's P10. The S1124 also supports double the memory (8 TB vs 4 TB) and internal storage (244.8 TB vs 122.4 TB).
What is the difference between S-series and L-series Power 11 models?
S-series (S1112, S1122, S1124) and L-series (L1122, L1124) models share nearly identical hardware, but carry different machine-type licensing. L-series machines are Linux and Red Hat OpenShift-first, with IBM i and AIX capped at roughly 25% of activated cores. If your workload is primarily IBM i or AIX, choose the equivalent S-series model instead.