Design a tiered backup architecture for [CriticalSystemsList] using [BackupProduct] that separates hot, warm, and cold tiers. Propose retention targets of [RetentionDays_Tier1] for Tier 1 and [RetentionDays_Tier2] for Tier 2, with monthly/yearly archives and an offsite copy in [OffsiteLocation] within [Region]. Address encryption, key management, immutable/air-gapped copies, and operational runbooks.
Output format:
Architecture Summary (bullets).
Data Flow Diagram (textual description of components and flows).
Retention Matrix Table: System | Tier | Backup Freq | Retention | Location | Immutability | Restore Path.
Risks & Mitigations table.
Implementation Checklist with pre-reqs and success criteria.
Include monitoring hooks and alert thresholds for missed jobs and failed validations.