It can implement the fault prevention detection and recovery of the locally deployed locally.

The design blueprint for MaximumAvailabilityArchitecture (PAA) is based on proven Oracle high availability technology, it provides recommendations for optimal methods, allowing you to maximize system availability with simple configuration. More and more of the current IT systems, with the design blueprint for the package's Maximum Availability Architecture (PAA) being based on proven Oracle high Availability technology, it provides recommendations for optimal methods, allowing you to maximize system availability with simple configuration.

More and more IT systems, including networks, systems, and databases, have considered availability. However, as a user, whether IT managers, architects, system administrators, or database administrators find IT difficult for them to integrate distributed systems to build a unified high availability solution to meet their business needs. Oracle wants to simplify the complexity of designing a correct high availability architecture for users' business needs. It is a solution to achieve overall high availability that is truly indestructible.

Oracle defines a simple, redundant, and robust structure that can implement fault prevention, detection, and recovery. The following components are involved in the structure of the locally deployed locally:

Real Application Clusters

Real Application Clusters (RAC) utilizes the processing capabilities of multiple interconnected computers. RAC software and a hardware collection called a cluster combine the processing capabilities of each component to build a strong computing environment and provide:

Availability-provides almost continuous data access, minimizing the interruption caused by hardware and software component faults.

Scalability-allows you to add additional nodes to a cluster to improve processing capabilities without having to re-distribute data or change user applications.

Easy to manage-provides a separate system image for management. In addition, RAC also supports failover.

Oracle Data Guard

Oracle Data Guard manages synchronous copies of a product database in another region. Oracle Data Guard supports remote archiving, recovery, and switchover and failover. It also provides disaster protection and Read-only for Reporting.

Redundancy Intermediate/Application layer

The application layer provides application services for clients by a group of servers. the functions of the entire application layer may be distributed on many hosts, so that multiple hosts can provide the same services in a cluster to achieve high availability.

Redundant network structure

A high-availability network layer may contain redundant devices, such as DNS servers, to achieve routing of master and slave nodes, server load balancer, and physical layer switching during Failover.

Redundant storage structure

There are many redundant storage technologies, and any of them can meet the requirements.