The Definitive Guide toAI Data Centers
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Guide › Glossary › AFR

AFR · Annualized Failure Rate

The fraction of a component population expected to fail per year; the fleet-planning number behind spares pools and maintenance budgets.

Where the guide uses this

10.7
Fleet Reliability, Fault Tolerance & Autonomous Recovery
14.3
Component Failure Modes, Failure Rates & Fleet Reliability Data
14.6
Spares Strategy, RMA Logistics & Repair Operations
9.4
Checkpointing for Large-Scale Training
12.4
SLAs, Goodput Contracts & Availability Commitments
14.4
Reliability Engineering for Training (Operational)

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