DevOps For 24 x 7 SaaS and Disaster Recovery, Know What It Takes Before You Leap Into It
summary
Patterns for multi-cloud SaaS disaster recovery that optimize RPO/RTO with concrete tradeoffs and tested implementations: Kubernetes-based deployments, CI/CD pipelines, and cross-region async replication for datastores; active-passive and active-active models with automated failover and health checks; chaos drills and scripted failovers that deliver RTOs reduced to minutes and RPOs near-zero for the active-active pattern while simpler patterns accept minutes of data loss; patterns are validated on IBM SaaS migrations to hyperscalers and include tooling and runbook specifics.
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