If you are looking for documentation on Oracle WebLogic Server 11g (component in Oracle Fusion Middleware) then here are few good links
1. Recommendation for Oracle WebLogic Server 11g Disaster Recovery here which covers File System and Network artifacts.
2. If you are using JMS (Java Messaging services) and T-Logs in WebLogic server then check recommendations for DR here
3. Whole Server Migration : Read about Server migration in WebLogic server (Automatic and Manual server migration) here
4. Service Migration for pinned services (JMS, JTA and user defined singleton service) here
5. If you are planning to use Virtualization and Partitioning technologies (Non Oracle) with WebLogic server then check this
6. Check High Availability configuration for Oracle WebLogic here
More information on High Availability and Disaster Recovery documentation for Fusion Middleware component – SOA, WebCenter, Identity Management (OID, SSO, Access Manager) coming soon …..
If you know any document regarding WebLogic Disaster Recovery (Failover) configuration then update it under comments section.