datacenter
Installation
SKILL.md
Datacenter Operations
Purpose
Design, operate, and manage physical datacenter infrastructure including tier classification, power/cooling, rack layout, cabling, DCIM, and capacity planning.
Architecture Decision Trees
Datacenter Tier Classification
| Tier | Availability | Redundancy | Annual Downtime | Cost Premium |
|---|---|---|---|---|
| Tier I (Basic) | 99.671% | None (N) | 28.8 hours | 1x (baseline) |
| Tier II (Redundant) | 99.741% | N+1 (power/cooling) | 22.7 hours | 1.2-1.5x |
| Tier III (Concurrently Maintainable) | 99.982% | N+1 (all components) | 1.6 hours | 1.8-2.5x |
| Tier IV (Fault Tolerant) | 99.995% | 2N (fully redundant) | 26.3 minutes | 3-5x |