Organizations that are moving from traditional on-premises environments to hybrid cloud architectures increasingly require robust strategies for ensuring business continuity. High Availability and Disaster Recovery are essential for protecting mission-critical workloads against hardware failures, software issues, and large-scale outages. This IBM Redbooks publication describes the IBM solution for implementing HA and DR on IBM Power Virtual Server, leveraging enterprise-grade clustering technologies and cloud-native automation.

This publication explains how to design and deploy resilient architectures using PowerHA SystemMirror , GLVM, and replication services, combined with IBM PowerVS capabilities for geographic redundancy. It also covers automation frameworks such as Ansible and Terraform , enabling zero-downtime operations and streamlined failover workflows. Security and compliance considerations including identity management, encryption, and audit readiness are integrated throughout the solution design.

The guidance provided here is targeted toward technical professionals, consultants, IT architects, and specialists responsible for delivering highly available and disaster-resilient solutions for AIX , IBM i, and Linux workloads in hybrid cloud environments. By following the best practices and blueprints outlined in this publication, organizations can achieve predictable recovery objectives (RPO/RTO), meet stringent SLAs, and ensure operational continuity even in the face of unexpected disruptions.

Chapter 1. High Availability and Disaster Recovery on IBM PowerVS

Chapter 2. Planning HA and DR on Power Virtual Server

Chapter 3. Capabilities on IBM PowerVS

Chapter 4. Implementing HA and DR Across All Layers in PowerVS

Chapter 5. Replication Strategies

Chapter 6. Operations, Automation, and Observability

Chapter 7. Security and Compliance