Tier audits
The Tier I to IV certification criteria and how to meet them.
Tier audits certify the reliability of your datacenter, following the Uptime Institute standards and the ANSI/TIA-942 standard. Each certification unlocks new clients and rewards.
Taking an audit
Open Tier Audit & PUE (A key). For the next level, the window shows every criterion and where you stand. When everything is green, start the audit.
The criteria for each level
| Level | Min. racks | Min. power | Max. PUE | Min. runtime | Upgrades | Max. active failures | Reward |
|---|---|---|---|---|---|---|---|
| TIER I CERTIFIED ANSI/TIA-942 Tier I • 99.671% availability | 2 | 40 kW | 1.85 | 5 min | 3 | 1 | $5,000 · 150 XP · +0.2 ★ |
| TIER II CERTIFIED ANSI/TIA-942 Tier II • 99.741% availability | 4 | 120 kW | 1.60 | 10 min | 8 | 0 | $25,000 · 400 XP · +0.3 ★ |
| TIER III CERTIFIED ANSI/TIA-942 Tier III • 99.982% availability (under 1.6 h of downtime a year) | 8 | 300 kW | 1.35 | 15 min | 18 | 0 | $75,000 · 1000 XP · +0.5 ★ |
| TIER IV FAULT-TOLERANT ANSI/TIA-942 Tier IV • 99.995% availability (under 26 min of downtime a year) | 12 | 650 kW | 1.20 | 25 min | 30 | 0 | $200,000 · 2500 XP · +0.7 ★ |
| HYPERSCALE PLATINUM NET-ZERO ISO 50001 Platinum • Net-Zero GHG • PUE < 1.10 | 16 | 1,200 kW | 1.10 | 40 min | 45 | 0 | $500,000 · 5000 XP · +1 ★ |
The compliance score
The resilience score compares your deployed upgrades with your active failures. Resolve ongoing incidents and invest in your facilities before taking the audit.
Tip
The maximum PUE is often the hardest criterion. Cold aisles, free cooling and HVAC upgrades are your best allies.
Try it in the game
PlayFree, in your browser, with just an account.