IBM Power 11 Overview

IBM Power 11 is the successor to IBM Power 10. It is the processor and server generation behind IBM's current Power systems, including scale-out, Linux-focused, and enterprise configurations. In practical AS400 terms, Power 11 is the hardware layer that can run modern IBM i workloads while also supporting hybrid cloud, automation, security, and AI inferencing use cases.

The platform is not a replacement for IBM i. It is the newer hardware foundation underneath IBM i, AIX, and Linux. That distinction matters because many organizations still say AS400 when they mean business applications now running on IBM i and IBM Power hardware.

The current Power 11 family includes several model lines, but IBM i buyers should not treat every Power 11 model as the same planning target.

• IBM Power S1112 (9242-21B rack / 9242-21T tower): Entry-level, one-socket Power 11 system for compact IBM i, AIX, and Linux environments. This is the key Power 11 model for P05-tier IBM i customers.
• IBM Power S1122 (9824-22A): Two-socket scale-out system for small and midsize enterprise workloads.
• IBM Power S1124 (9824-42A): Larger scale-out system for stronger memory, I/O, and workload consolidation needs.
• IBM Power L1122 (9856-22H): Linux-focused Power 11 model for Linux and OpenShift-oriented deployments.
• IBM Power L1124 (9856-42H): Larger Linux-focused Power 11 model.
• IBM Power E1180 (9080-HEU): High-end enterprise Power 11 system for large-scale mission-critical workloads.
• IBM Power E1150 (9043-MRU): Enterprise Power 11 server marketed for data-intensive AIX and Linux workloads. It belongs in the broader Power 11 family, but it is not the first model to lead with for ordinary AS400 or IBM i upgrade planning.

Older names such as S1014, S1022, S1024, and E1080 belong to the Power 10 generation, not Power 11.

The Power S1112 is important because it brings Power 11 to entry-level IBM i environments. For many smaller AS400 and IBM i shops, this is the first Power 11 system that fits the P05 software tier planning conversation.

IBM positions the S1112 for compact on-premises, branch, remote, and near-edge environments. For IBM i, the practical attraction is that a smaller shop can modernize hardware without automatically jumping into a larger system class. That makes the S1112 a natural comparison point for older P05 systems such as Power 8 S814, Power 9 S914, Power 10 S1014, and Power 10 S1012.

Power 11 support depends on the exact model and IBM i release level. IBM's platform support summary lists the July 2026 Power S1112 support levels as IBM i 7.6 Technology Refresh 2, IBM i 7.5 Technology Refresh 8, and IBM i 7.4 with PTF MJ08663.

For the earlier July 2025 Power 11 systems listed in IBM's support summary, IBM i support is tied to IBM i 7.6 Power 11 GA PTF Group, IBM i 7.5 Technology Refresh 6, and IBM i 7.4 Technology Refresh 12. IBM i 7.3 is not the planning baseline for new Power 11 hardware. Organizations still running older IBM i releases should include operating system upgrade work in the hardware migration plan.

Power 11 is not just a faster server generation. IBM is positioning the platform as AI-ready infrastructure. That includes on-chip Matrix Math Acceleration for AI inferencing, support for the IBM Spyre Accelerator for larger AI workloads, and integration with Red Hat OpenShift AI, watsonx.data, and open AI software stacks.

For IBM i environments, the practical point is data locality. Many AS400-era applications still hold valuable operational data. If an organization wants AI to support claims, logistics, finance, inventory, or regulated workflows, it may not want every inference path to start by moving sensitive data away from the platform where that data already lives.

IBM's 2026 Power announcement added two software signals that matter for AS400 and IBM i teams. IBM Power Autonomous Operations is an AI agent for monitoring Power environments, diagnosing operational issues, and helping resolve capacity constraints with human approval and policy controls. IBM Bob Premium Package for i brings AI-assisted development support to IBM i application modernization.

Those two pieces change the modernization conversation. Power 11 is not only about CPU, memory, CPW, and energy efficiency. It is also about lowering the operational burden of managing IBM Power systems and widening the pool of people who can understand, document, and modernize IBM i applications.

Power 11 generally improves performance, energy efficiency, security, automation, and AI readiness compared with Power 10. For a Power 10 shop, the upgrade case may depend on lifecycle timing, capacity pressure, AI requirements, support policy, and whether the organization needs a model such as the S1112 in the P05 tier.

For a Power 8 or Power 9 shop, the difference is larger. The migration decision often combines hardware age, IBM i release support, storage and memory ceilings, high availability planning, security requirements, and the need to keep core applications modern enough for the next decade.

A useful Power 11 planning process starts with the current machine type and model, IBM i release level, active processor cores, CPW needs, memory, internal storage, adapter inventory, HMC strategy, HA or DR design, and software licensing tier. From there, the organization can decide whether an S1112, S1122, S1124, larger enterprise model, Power Virtual Server, or a hybrid path is the right fit.

The AI question should be asked early, even if the first project is not an AI project. If the organization expects to use AI for healthcare claims, patient operations, document matching, fraud detection, clinical workflow support, manufacturing quality, logistics, finance, or business analytics, the Power 11 design should account for data locality, governance, latency, security, and future inferencing capacity.

This overview is based on IBM's Power 11 launch announcement, IBM's July 2026 Power S1112 and Power Autonomous Operations announcement, IBM Power S1112 product information, IBM's Enterprise AI on Power materials, and IBM's IBM i Platform Support Summary. Always confirm final model, feature, operating system, PTF, and licensing requirements with IBM documentation or an IBM Power specialist before purchase.