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Oracle Maximum Availability Architecture Best Practicesfor Database 12c

Laban Ndwaru,Presales Consultant, Oracle.

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Maximum Availability Architecture (MAA)

• Oracle Maximum Availability Architecture (MAA) is Oracle’s best practices blueprint based on the integrated suite of Oracle’s best-of-breed High Availability (HA) technologies

• HA capabilities address the full range of planned and unplanned outages

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• Prevent outages before they occur.• Tolerate outages - planned or unplanned so

they are transparent to the business.• Recover quickly if an outage does occur.

Maximum Availability Architecture (MAA)Achieving High Availability

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Maximum Availability Architecture (MAA)Causes of outages

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• RAC- Oracle Real Application Clusters• Oracle Data Guard• ASM-Automatic Storage Management • Oracle Enterprise Manager• RMAN- Recovery Management

Maximum Availability Architecture (MAA)Oracle High Availability Technologies

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Online Redefinition, Edition-based Redefinition, Data Guard, GoldenGate– Minimal downtime maintenance,

upgrades, and migrations

Production Site

RAC– Scalability– Server HA

Flashback– Human error

correction

Active Data Guard– Data Protection, DR– Query Offload

GoldenGate– Active-active– Heterogeneous– Migrations and Upgrades

Active Replica

Maximum Availability Architecture (MAA)Fig. Integrated deployment of Oracle HA

Oracle Secure Backup– Backup to tape / cloud

ASM– Volume Management

RMAN & Fast Recovery Area– On-disk backups

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Maximum Availability Architecture (MAA)Oracle Real Application Clusters

• RAC is a shared cache clustered database architecture that overcomes the limitations of traditional shared-nothing and shared-disk architectures

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Maximum Availability Architecture (MAA)RAC- Features

Application Continuity Oracle Grid Infrastructure Integration Full Oracle Multitenant Support

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Maximum Availability Architecture (MAA)RAC- Key Benefits

Fast FailoverProtection from local site system failuresFaster than cold cluster failover solutionFast-start fault recoveryAvailability and Accessibility Allows for scheduled outagesAdd and remove nodes transparentlyTransparent Application Failover (TAF) provides uninterrupted service

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Maximum Availability Architecture (MAA)

Higher Scalability All system resources from all nodes are leveragedCache fusion eliminates need to partition data or modify the application – fully application transparentConnection load balancing distributes connection requests from application tierManageabilityProvides a single image of the database to manage

RAC- Key Benefits

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Maximum Availability Architecture (MAA)Oracle Active Data Guard

• Active Data Guard provides the management, monitoring, and automation software to create and maintain one or more synchronized replicas (standby databases) of a production database (primary database).

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Maximum Availability Architecture (MAA)

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Maximum Availability Architecture (MAA)Oracle Active Data Guard –Key Features & Benefits

• ProtectionOracle corruption-detection checks ensure that data is logically and physically consistent before it is applied to a standby database• AvailabilityAn Active DataGuard standby provides high availability by quickly transitioning to the secondary role, either manually or automatically, preventing downtime and data loss• Return on InvestmentActive DataGuard puts idle systems to work improving systems utilization

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Maximum Availability Architecture (MAA)Oracle Active Data Guard –Key Features & Benefits

• PerformanceIt is the only replication technology able to support the very high volumes driven by the Oracle Database Machine and Oracle Exadata• Confidence Provides unique levels of simplicity, performance, reliability and the security of having an independent, exact replica of the production database

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