Cloud Architecture

Warm Standby Disaster Recovery Architecture

Cloud Architecture diagram · made in Skemio

Architecture showing a primary active region with full compute and database replicating to a warm standby region with minimal compute and auto-scaling.
Architecture showing a primary active region with full compute and database replicating to a warm standby region with minimal compute and auto-scaling.
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What it shows

  • Runs minimal compute (e.g. 2 instances) continuously in standby region.
  • Live read replica ensures RPO is measured in seconds rather than hours.
  • ASG scales out compute to 100% capacity within 3-5 minutes on failover.

The takeaway

Warm standby balances tight RTO and RPO with an 80% compute cost reduction versus active-active.

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