HACMP and data replication each serve different needs in the high availability and disaster recovery arenas. Combining the two delivers the best of both worlds.

Written by Rich Krause

Many AIX shops protect the availability of their applications by using IBM's High Availability Cluster Multi-Processing (HACMP) to closely link multiple servers connected to shared storage. HACMP monitors the health of the cluster and can automatically recover applications and system resources on a secondary server if the primary server is unavailable. Because the cluster typically operates in a shared-disk environment, as depicted in Figure 1, failover times are very short in this scenario because the failover occurs entirely within the local cluster.

Employ effective strategies for timely data protection and recovery.

Written by John Gay

Editor's Note: This article is a distillation of the free white paper "The One Essential Guide to Disaster Recovery: How to Ensure IT and Business Continuity on i5/OS and AIX" available at the MC Press White Paper Center.

System downtime and data loss pose intolerable risks to every business. From IT departments to the boardroom, managers have seen the importance of business uptime and data protection to continued success, productivity, and profitability. This article provides effective strategies and technologies to protect data and provide fast recovery should data be lost or corrupted due to accidental or malicious action.