Organizations that are moving from traditional on-premises environments to hybrid cloud architectures increasingly require robust strategies for helping ensure business continuity. high availability and disaster recovery (HADR) 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 HADR on IBM Power Virtual Server (IBM PowerVS™), using enterprise-grade clustering technologies and cloud-native automation.

This publication explains how to design and deploy resilient architectures by using IBM PowerHA® SystemMirror®, Geographic Logical Volume Manager (GLVM), and replication services, which are combined with PowerVS capabilities for geographic redundancy. The publication also covers automation frameworks such as Ansible and IBM Terraform®, enabling zero-downtime operations and streamlined failover workflows. The solution design integrates security and compliance considerations including identity management, encryption, and audit readiness.

This publication targets technical professionals, consultants, IT architects, and specialists responsible for delivering HADR solutions for IBM AIX®, IBM i, and Linux workloads in hybrid cloud environments. By following the best practices and blueprints that are outlined in this publication, organizations can achieve predictable recovery point objectives (RPOs), meet stringent SLAs, and help ensure operational continuity despite unexpected disruptions.

Chapter 1. High availability and disaster recovery on IBM PowerVS

Chapter 2. Planning high availability and disaster recovery on IBM PowerVS

Chapter 3. Capabilities of IBM PowerVS

Chapter 4. Implementing high availability and disaster recovery across all layers on IBM PowerVS

Chapter 5. Replication strategies

Chapter 6. Operations, automation, and observability

Chapter 7. Security and compliance