Tag Archives: Architecture

ZDLRA + MAA, Protection for Gold Architecture

The Gold architecture for MAA is used to emphasis the application continuity. All the possible outages (planned or no) are protected by Oracle features. Here we are one step further and start to design using multi-site architecture. Data Guard, RAC, Oracle Clusterware, everything is there. But even with these, ZDLRA is still needed to allow complete protection.

The image above taken from https://www.oracle.com/a/tech/docs/maa-overview-onpremise-2019.pdf.

With the MAA references, we have the blueprints and highlights how to protect them since the standalone/single instance until the multiple site database. But for Gold we are beyond RPO and RTO, they are important but application continuity and data continuity join to complete the whole picture.

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ZDLRA + MAA, Protection for Silver Architecture

The MAA defined Silver architecture for database environments that use (or need) high availability to survive for outages. The idea is having more than one single instance running, and to do that, it relies on Oracle Clusterware and Engineered Systems to mitigate the single point of failure. But is not just a database that gains with this, the Silver architecture is the first step to have application continuity. And again, ZDLRA is there since the beginning.

As you can see above, the Silver by MAA blueprints improves compared with Bronze architecture that I spoke at the last post. But the basic points are there: RPO and RTO. They continue to base rule here. And the goals are the same: Data Availability, Data Protection, Performance (no impact), Cost (lower cost), and Risk (reduce). More technical details here at the MAA Overview doc.

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ZDLRA + MAA, Protection for Bronze Architecture

Oracle Maximum Availability Architecture (MAA) means more than just Data Guard or Golden Gate to survive outages, is related to data protection, data availability, and application continuity. MAA defines four reference architectures that can be used to guide during the deploy/design of your environment, and ZDLRA is there for all architectures.

Image above taken from https://www.oracle.com/a/tech/docs/maa-overview-onpremise-2019.pdf.

With the MAA references, we have the blueprints and highlights how to protect them since the standalone/single instance until the multiple site database. The MAA goal is to survive an outage but also sustain: Data Availability, Data Protection, Performance (no impact), Cost (lower cost), and Risk (reduce).

Click here to read more…