1. AI Database
  2. High Availability

Oracle Maximum Availability Architecture

Oracle Maximum Availability Architecture (MAA) provides architecture, configuration, and lifecycle best practices for Oracle AI Databases and applications, enabling high-availability service levels for databases and applications residing in on-premises, cloud, or hybrid configurations.

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Build Resilience with Oracle Maximum Availability Architecture

High availability requirements vary based on the importance of each application and its tolerance for downtime and data loss. Oracle Maximum Availability Architecture (MAA) helps organizations align the right availability, data protection, and disaster recovery technologies with their business requirements.

MAA provides validated reference architectures and best practices to help organizations:

  • Meet Availability Objectives - Align architectures with recovery time (RTO) and recovery point (RPO) requirements.
  • Protect Against a Broad Range of Outages - Address component, system, data, and site failures as well as planned maintenance.
  • Reduce Implementation Complexity - Use validated configurations and lifecycle best practices for integrated Oracle high availability technologies.
  • Match Protection to Business Criticality - Choose from MAA reference architectures designed for different availability and data protection requirements.

Maximum Availability Architecture Infographic

Oracle Maximum Availability Architecture features

Oracle Real Application Clusters

Oracle Real Application Clusters (Oracle RAC) allow customers to run a single Oracle AI Database across multiple servers to maximize availability and enable horizontal scalability while accessing shared storage. User sessions connecting to Oracle RAC instances can fail over and safely replay changes during outages, without affecting end-user applications, thereby hiding the impact of the outages.


Oracle Active Data Guard

Oracle Active Data Guard expands the capabilities of Oracle Data Guard to provide advanced data protection, disaster recovery, and scalability benefits. Use Oracle Active Data Guard to survive disasters and data corruption while creating, maintaining, and managing one or more synchronized standby databases.


Oracle Application Continuity

Application Continuity (AC) is a feature available with Oracle RAC, Oracle RAC One Node, and Oracle Active Data Guard options that masks outages from end users and applications by recovering the in-flight work for impacted database sessions.


Oracle Globally Distributed AI Database

Oracle Globally Distributed AI Database disperses segments of a data set across many databases (shards) onto different computers—on-premises or in the cloud. It enables globally distributed, linearly scalable, multimodel databases. It requires no specialized hardware or software. Oracle Globally Distributed AI Database does all this while delivering strong consistency, the full power of SQL, and support for the structured and unstructured data of Oracle Database. It meets data sovereignty requirements and supports applications that require low latency and high availability.


Oracle Recovery Manager (RMAN)

Oracle RMAN is an Oracle Database client that performs backup and recovery tasks on Oracle Databases and automates the administration of backup strategies. Oracle RMAN simplifies backing up, restoring, and recovering database files.


Oracle AI Database Flashback Technologies

Oracle AI Database Flashback Technologies is a set of data recovery solutions that reverse human errors by selectively and efficiently undoing the effects of a mistake. Oracle AI Database Flashback supports recovery at all levels, including the row, transaction, table, and the entire database.


Edition-Based Redefinition

Edition-based redefinition (EBR) enables online application upgrades with uninterrupted application availability. Both the current application and upgraded application can run simultaneously, allowing users to be phased over to the new version of the application without interrupting business continuity.


Oracle GoldenGate

When combined with other Oracle MAA technology, Oracle GoldenGate eliminates downtime during routine database maintenance and upgrades, operating system patches, application upgrades, and platform migrations. All operations are protected with failback capabilities, eliminating the risk of losing data. Oracle GoldenGate can be deployed in either multi-master or active-active configurations to achieve database scalability or distributed synchronization.


Oracle MAA database cloud migration solutions

Zero Downtime Migration

Oracle Zero Downtime Migration is a widely used automated solution for migrating Oracle AI Databases into any Oracle-owned infrastructure, including Exadata Database Machine on-premises, Exadata Cloud@Customer, and Oracle Cloud Infrastructure (OCI), including Oracle AI Database@Azure, Oracle AI Database@Google Cloud, and Oracle AI Database@AWS

Explore Zero Downtime Migration (ZDM)



MAA best practices

Oracle Maximum Availability Architecture Series - Learn best practices for high availability, scalability, and disaster recovery.

MAA resources

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