A big US prospect's security questionnaire asks: "Is the service deployed in multiple regions?" We run in one AWS region across three availability zones, with a 99.9% SLA. Going multi-region means data replication, a second deployment pipeline, and roughly double the…

Multi-region
AWS
Disaster Recovery

TBTom Becker7votes5comments1Kviews1w ago

Resilience ↔ Cost and complexity

Single region, multi-AZ 75%Multi-region 25%

8 engineers chose

Cloud

Single region with fast failover vs multi-region active-active for 99.99%

We've signed a 99.99% availability SLA for our payments API. That is 52 minutes of downtime a year. Option A: one AWS region across three AZs, plus a warm standby in a second region with Aurora Global Database and a rehearsed 10-minute failover. Option B: active-active in two…

AWS
Multi-region
PostgreSQL
Kubernetes

PRPriya Raman5votes4comments913views2w ago

Availability ↔ Complexity

Single region + warm standby 71%Multi-region active-active 29%

7 engineers chose

Multi-region vs single-region for a 12-person B2B SaaS

Single region with fast failover vs multi-region active-active for 99.99%

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