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Oracle MAA reference architecture and HA, DR, RTO, RPO

By Franck Pachot

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I may have mentioned in some previous blog post that, in my opinion, the names of Oracle Database features make sense on the vendor product management context more than in a user context. I’m not saying that it is good or bad. There are so many features, that can be combined, and that evolved for many years. The possible use cases is unlimited. What I see customers doing in Europe is very different from what I have seen in US companies or in Africa for example. What I’m saying is that most of the time you need a vendor-to-user dictionary when reading Oracle documentation and presentations. I’ll focus here on the MAA reference architecture. Yes, acronyms add to the complexity. MAA means Maximum Availability Architecture. Because when you have High Availability features for decades, you need another name when you bring an “higher” High Availability.

https://blog.dbi-services.com/wp-insides/uploads/sites/2/2020/09/Screens... 1024w, https://blog.dbi-services.com/wp-insides/uploads/sites/2/2020/09/Screens... 768w, https://blog.dbi-services.com/wp-insides/uploads/sites/2/2020/09/Screens... 1410w" sizes="(max-width: 300px) 100vw, 300px" />The MAA reference architecture defines 4 levels of HA and Data Protection: Bronze, Silver, Gold, Platinium. They are very well described. But they are othogonal to what I see at my customers running Oracle Database. And they are not clear when discussing with architects where the common terms are: HA, DR, replicas, Availability Zone, Regions…

Products

When I read the MAA Architecture reference, I see a categorization made from the products: