CONCEPT Cited by 1 source
Tiered resilience policy¶
Definition¶
Tiered resilience policy is the practice of assigning differentiated recovery objectives, availability targets, and testing cadences to workloads based on their business impact — rather than applying uniform resilience investments across all applications.
Typical tier structure¶
| Tier | Classification | RTO | RPO | Availability | Testing cadence |
|---|---|---|---|---|---|
| 1 | Mission-critical | < 15 min | < 5 min | 99.99% | Weekly |
| 2 | Business-critical | < 1 hour | < 15 min | 99.9% | Monthly |
| 3 | Non-critical | Longer windows | Relaxed | Lower | Quarterly |
Why it matters¶
Not every workload justifies the same resilience investment. Tiered policies optimize cost by focusing chaos experiments, redundancy, and automation on the highest-impact workloads while accepting proportionally higher risk on less critical systems. The classification is driven by business impact analysis: severity of failure, likelihood of occurrence, and cost of downtime (Source: sources/2026-06-22-aws-architecting-ai-powered-resilience-framework-on-aws).
Seen in¶
- sources/2026-06-22-aws-architecting-ai-powered-resilience-framework-on-aws — enterprise deployment tier structure for multi-account resilience