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Linux on Power

Running Enterprise Linux on IBM Power Systems

14 sections Beginner friendly Overview + links

Linux on Power runs enterprise distributions — RHEL, SLES, and Ubuntu — on IBM POWER hardware. Many sites colocate Linux LPARs alongside AIX on the same frame using PowerVM.

This overview highlights the admin differences that matter when you move from x86 Linux to Power: endianness, package sources, performance tuning, and shared VIOS resources.

Linux on Power Guides ← Back to Home
Topics in This Overview What is Linux on Power? Supported Linux Distributions Why Choose Linux on Power? Linux on Power Architecture Key Components Storage Support Networking Features Cloud and Container Technologies Production Administration Tasks Learning Roadmap Related on AIXOSQuiz Frequently Asked Questions Next Steps

Topics in This Overview

  • Introduction to Linux on Power
  • Supported Linux distributions
  • IBM POWER processor architecture
  • PowerVM virtualization
  • LPAR deployment
  • Storage and networking configuration
  • Performance optimization
  • Cloud and container platforms
  • Best practices for enterprise environments

What is Linux on Power?

Linux on Power is the implementation of Linux operating systems on IBM Power Systems hardware. It allows enterprises to run modern Linux workloads while taking advantage of IBM POWER processors, enterprise virtualization, large memory capacity, and advanced reliability features.

Supported Linux Distributions

  • Red Hat Enterprise Linux (RHEL)
  • SUSE Linux Enterprise Server (SLES)
  • Ubuntu Server
  • Fedora (Development)

These distributions are optimized to take advantage of IBM POWER processor capabilities and are widely used in enterprise production environments.

Why Choose Linux on Power?

  • Excellent performance
  • Enterprise reliability
  • Advanced virtualization
  • Large memory support
  • High availability
  • Strong security
  • AI and machine learning acceleration
  • Cloud-ready platform

Linux on Power Architecture

IBM Power Server
│
├── POWER Processors
├── PowerVM Hypervisor
├── VIOS
│
├── Linux LPAR
├── Linux LPAR
├── AIX LPAR
└── IBM i LPAR

Key Components

Essential parts every administrator should understand first.

POWER Processor

RISC CPUs built for throughput and reliability.

  • Multi-core CPUs
  • Simultaneous Multithreading (SMT)
  • Large cache memory
  • High bandwidth architecture

PowerVM

Virtualization layer managing logical partitions.

PowerVM enables multiple Linux LPARs to run simultaneously on a single IBM Power server while efficiently sharing hardware resources.

Logical Partitions (LPARs)

Isolated OS instances on shared POWER hardware.

Each Linux operating system runs inside its own isolated LPAR with dedicated or shared CPU, memory, storage, and networking resources.

Virtual I/O Server (VIOS)

Shared network and storage for client LPARs.

VIOS provides shared storage and networking resources to Linux client partitions through technologies such as NPIV, vSCSI, and Shared Ethernet Adapter (SEA).

Storage Support

  • IBM FlashSystem
  • SAN Storage
  • Fibre Channel
  • NPIV
  • Multipathing (MPIO)
  • NVMe Storage

Networking Features

  • Virtual Ethernet
  • Shared Ethernet Adapter (SEA)
  • VLAN Support
  • 10/25/40/100 Gb Ethernet
  • Bonding and Teaming

Cloud and Container Technologies

  • Docker
  • Podman
  • Kubernetes
  • OpenShift
  • PowerVM LPARs (primary Linux deployment model on Power)
  • Ansible Automation

Endianness and Packages

IBM POWER servers run Linux in little-endian (LE) mode on POWER8 and later — the same byte order as x86_64. That means most distribution packages built for ppc64le install without byte-order conversion. Older big-endian (ppc64) images still exist for legacy workloads, so always match the architecture reported by uname -m when downloading RPMs or containers.

Production Administration Tasks

  • Install Linux on Power
  • Create Linux LPARs
  • Configure storage
  • Manage networking
  • Patch operating systems
  • Monitor performance
  • Troubleshoot hardware issues
  • Automate administration tasks

Learning Roadmap

Beginner

Understand IBM Power architecture, Linux basics, and supported distributions.

Intermediate

Install Linux, configure networking, storage, users, services, and virtualization.

Advanced

PowerVM administration, VIOS integration, automation, containers, and performance tuning.

Expert

Enterprise deployments, cloud platforms, AI workloads, disaster recovery, and capacity planning.

Related on AIXOSQuiz

Continue from this overview to Linux on Power guides:

Frequently Asked Questions

Can Linux run alongside AIX?

Yes. IBM Power Systems allow Linux, AIX, and IBM i to run simultaneously using PowerVM virtualization.

Which Linux distribution is most common on Power?

Red Hat Enterprise Linux (RHEL) and SUSE Linux Enterprise Server (SLES) are the most widely deployed in enterprise environments.

Is Linux on Power suitable for cloud workloads?

Yes. Linux on Power supports containers, Kubernetes, OpenShift, virtualization, databases, and AI applications.

Next Steps

  1. IBM Power Architecture
  2. Installing Linux on Power
  3. PowerVM Fundamentals
  4. LPAR Administration
  5. VIOS Integration
  6. Storage Configuration
  7. Networking
  8. Container Platforms
  9. Performance Tuning
  10. Enterprise Best Practices