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 Design Considerations for Continuous Availability

• General Design Considerations and Recommendations
  • 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
• 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
• 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
• 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