MTTR · Mean Time To Repair
The average time to restore a failed component to service, a core driver of overall availability.
Current numbers
<2 minMTTR achievable with multi-tier checkpointing vs 15-30 min naive restart
15-30 min → <2 mintraining MTTR cut by multi-tier checkpointing — a goodput gain no facility tier delivers
15-30 min → <2 minMTTR reduction from persistent-storage reload to multi-tier in-cluster recovery; +6.59% goodput on 35K chips