All 7 AWS Backup & Disaster Recovery questions
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How does AWS Elastic Disaster Recovery differ from traditional backup based recovery approaches?

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Answer

AWS Elastic Disaster Recovery uses continuous, block level replication of your on premises or cloud based servers into a low cost staging area within AWS, allowing for recovery time objectives measured in minutes rather than the hours or days typical of restoring from traditional backups, since the replicated servers can be launched almost immediately as fully functioning EC2 instances during an actual disaster event.
aws drs create-replication-configuration-template --staging-area-subnet-id subnet-12345 --default-large-staging-disk-type gp3
Real-world example A company running critical servers on premises uses Elastic Disaster Recovery to continuously replicate those servers into AWS, allowing them to fail over to fully running EC2 instances within minutes during an actual data center outage, rather than spending hours restoring from backup.

Common follow-ups: How does Elastic Disaster Recovery pricing compare to running a full standby environment continuously?;What is involved in testing a disaster recovery failover without disrupting production?

EC2 & Compute;AWS Cost Management & Billing
All 7 AWS Backup & Disaster Recovery questions