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Contents
Title and Copyright Information
Preface
Audience
Documentation Accessibility
Related Documents
Conventions
1
Introduction to WebLogic Continuous Availability
What Is Continuous Availability?
Continuous Availability Terminology
Continuous Availability Key Features
Automated Cross-Site XA Transaction Recovery
WebLogic Server Zero Downtime Patching
WebLogic Server Multitenant Live Resource Group Migration
Coherence Federated Caching
Coherence GoldenGate HotCache
Oracle Traffic Director
Oracle Site Guard
Value-Added WebLogic Server and Coherence High Availability Features
WebLogic Server High Availability Features
Coherence Persistence and Clusters
Disaster Recovery for Oracle Database
2
Supported MAA Architectures for Continuous Availability
Active-Active Application Tier with an Active-Passive Database Tier
Active-Passive Application Tier with an Active-Passive Database Tier
Active-Active Stretch Cluster with an Active-Passive Database Tier
3
Common Design Considerations for Continuous Availability
Potential Failure Scenarios
Global Load Balancer
Oracle Traffic Director
Web Tier
WebLogic Server
Clustering
Singleton Services
Server and Service Migration
Data Stores
Leasing
Session Replication
Data Sources
Security
Storage
Zero Downtime Patching
Cross-Site XA Transaction Recovery
Coherence
Coherence Federated Caching
Coherence Persistent Cache
Coherence GoldenGate Hot Cache
Database
Oracle Enterprise Manager and Oracle Site Guard
4
Design Considerations for Active-Active Application Tier Topology
Active-Active Application Tier With Active-Passive Database Tier Design Considerations
Active-Active Application Tier With Active-Passive Database Tier Failure Scenarios
5
Design Considerations for Active-Passive Application Tier Topology
Active-Passive Application Tier With Active-Passive Database Tier Design Considerations
Active-Passive Application Tier With Active-Passive Database Tier Failure Scenarios
6
Design Considerations for Active-Active Stretch Cluster Topology
Active-Active Stretch Cluster with an Active-Passive Database Tier Design Considerations
Active-Active Stretch Cluster with an Active-Passive Database Tier Failure Scenarios
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