Therefore, if you’re designing a DR strategy to withstand events such as power outages, flooding, and other other localized disruptions, then using a Multi-AZ DR strategy within an AWS Region can provide the protection you need. This significantly reduces the risk of a single event impacting more than one AZ. Each AZ consists of one or more data centers, located a separate and distinct geographic location. Scope of impact for a disaster event Multi-AZ strategyĮvery AWS Region consists of multiple Availability Zones (AZs). Therefore, you must choose RTO and RPO objectives that provide appropriate value for your workload. However, lower RTO and RPO cost more in terms of spend on resources and operational complexity. Recovery objectives: RTO and RPOįor RTO and RPO, lower numbers represent less downtime and data loss. This determines what is considered an acceptable loss of data.įigure 1. Recovery point objective (RPO): The maximum acceptable amount of time since the last data recovery point. This determines an acceptable length of time for service downtime.
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