AWS Elastic Disaster Recovery (AWS DRS) minimizes downtime and data loss. Backup and Disaster Recovery with fast, reliable recovery of on-premises and cloud-based applications using affordable storage, minimal compute, and point-in-time recovery
AWS offers four main disaster recovery (DR) strategies you can adopt to create backups that are available during disaster events. Each strategy has a progressively higher cost and complexity but lower recovery times
Each DR strategy on AWS offers different recovery time objectives (RTO) and recovery point objectives (RPO). Strategies are designed at several ranges of costs and complexities.
Generally, the more complex and highly available DR strategies come with higher costs. Less complex strategies that provide lower availability are more cost-effective.
The longest time that may pass since the last backup window. For example, if the district backs up files once per hour, it can lose one hour of data. The RPO is 60 minutes