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The Availability and Beyond whitepaper discusses the concept of static stability for improving resilience. What does static stability mean with regard to a multi-Region disasterrecovery (DR) plan? Testing your disasterrecovery plan. Even a simple distributed system may be too complex to operate reliably.
In a previous blog post , I introduced you to four strategies for disasterrecovery (DR) on AWS. These strategies enable you to prepare for and recover from a disaster. Every AWS Region consists of multiple Availability Zones (AZs). DisasterRecovery (DR) Architecture on AWS, Part I: Strategies for Recovery in the Cloud.
In my first blog post of this series , I introduced you to four strategies for disasterrecovery (DR). Each Region hosts a highly available, multi- Availability Zone (AZ) workload stack. Figure 2 shows Amazon Route 53 , a highly available and scalable cloud Domain Name System (DNS) , used for routing.
Your business units can use flexibility and autonomy to manage the hosted zones for their applications and support multi-region application environments for disasterrecovery (DR) purposes. For each Resolver endpoint, two or more IP addresses can be specified to map to different Availability Zones (AZs).
Building disasterrecovery (DR) strategies into your system requires you to work backwards from recovery point objective (RPO) and recovery time objective (RTO) requirements. Earlier, we were able to restore from the backup but wanted to improve availability further. Minimum business continuity for failover.
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