High Availability Architecture
Design redundancy, failover, backup, and recovery so critical services can remain available when individual components fail.
Critical services need an architecture that continues operating when a server, network, application, or location experiences disruption. High Availability Architecture connects business targets to an appropriate level of redundancy and recovery.
Initial assessment
- Mapping of critical services, dependencies, and single points of failure.
- Definition of availability targets, Recovery Time Objective, and Recovery Point Objective.
- Evaluation of traffic patterns, capacity, data replication, and consistency constraints.
- Analysis of component failure, human error, and site-disruption risks.
- Review of monitoring, escalation, backup, and recovery readiness.
Architecture components
- Redundant compute, storage, networking, and supporting services.
- Load balancing, health checks, failover, and traffic management.
- Database replication and consistency strategies suited to the application.
- Isolated backup, retention, encryption, and restore testing.
- A disaster-recovery site or recovery environment proportional to business need.
- Observability, incident response, and runbooks for failure scenarios.
Resilience testing
A design is not considered complete until failover and recovery procedures are tested. We define scenarios, success criteria, test evidence, and remediation actions without claiming availability levels unsupported by the architecture.
Intended outcomes
Disruptions are detected earlier, impact is contained, services have a clear recovery path, and business-continuity decisions are supported by evidence.