DISASTER RECOVERY IN THE CLOUD: IMPLEMENTING DR SITES AND BLUE/GREEN DEPLOYMENTS IN AWS

Abstract

Cloud computing disaster recovery (DR) has transformed into an indispensable component of business continuity and operational resiliency in the modern IT system. The study offers insights on how the DR sites and Blue/Green deployment policies can be applied to Amazon Web Services (AWS), their applicability in the real world, performance, and scalability. The research demonstrates AWS service intersectional benefits, upgrading of such services as Elastic Compute Cloud (EC2), Simple Storage Service (S3), Route 53, and Elastic Beanstalk when improving Recovery Time Objectives (RTO), Recovery Point Objectives (RPO), and reducing system downtime. The data indicates that AWS DR placements have reduced 45-minute to go down (RTO), 30-minute to recover (RPO), and 70% of significant downtime per annum in organizations that have been deployed to them, an equivalent of 25-40% of the cost of downtime. Blue/green deployments also boost performance with a success rate of 95% in the number of deployments once a system is deployed, and decrease user-facing downtime to as much as 90% when updates are made to a system. Such enhancements underscore the ability of AWS to provide affordable, automated, and resilient disaster recovery to accommodate various domains, including e-commerce, healthcare, and finance. The study concludes that AWS offers a scalable operating system of high-availability disaster recovery and determines potential future research prospects in artificial intelligence-based automation and hybrid cloud approaches to further streamline cloud-based resilience frameworks.