Just to follow up on my previous posts, here are some links on deeper details on how to setup IBM middleware for high availability and disaster recovery.
Disaster Recovery and High Availability * Seven Tiers of Disaster Recovery* IBM High-Availability Center of Competency* Business continuity* Business Continuity Self-Assessment Tool* IBM Global Services Business Continuity and Recovery Services
WebSphere Application Server* WebSphere Application Server Network Deployment V6: High Availability Solutions
WebSphere MQ* Understanding high availability with WebSphere MQ* High Availability for WebSphere Message Broker on Distributed Platforms (examples using HACMP and Linux-HA)
DB2 UDB* Open Source Linux High Availability for IBM® DB2® Universal Database™ Implementation Guide* DB2 Universal Database (DB2 UDB) for Linux with DRBD and Heartbeat: A Low-Cost Open Linux High Availability Solution* DB2 HADR Introduction* DB2 HADR Overview* Database Availability Comparison* Is HADR Hard?* Technical Comparison of DB2 HADR and Oracle Data Guard* Automating IBM DB2 UDB HADR with HACMP* Automating DB2 Universal Database (DB2 UDB) HADR Failover using Heartbeat for Linux* Automating DB2 HADR Failover on Linux using Tivoli System Automation for Multiplatforms* HADR - High Availability Disaster Recovery Demystified in IBM DB2 8.2
Please note that there are other potential solutions: GPFS, Linux-HA, HACMP, Storage (Global Mirror, Metro Mirror), System I iCluster, System I HASM, zOS GDPS, zOS Parallel Sysplex
Thanks to Alan Robertson for the links!