Time for a rated GPU cloud to replace a failed HGX-class node after SemiAnalysis injected a fault (ClusterMAX 3.0). SemiAnalysis's bar is under one hour end to end, with detection in about two minutes.
24–35 min automatic; 43–57 min with manual stepsobserved
| Value kind | observed — Reported measurements, counts, and specifications keep the precision and scope stated by their source; an exact specification is not treated as a range. |
|---|---|
| Scope | HGX-class nodes with hot spares. Fully automatic replacements took 24 min (AWS EKS Auto Mode) and 35 min (Together AI). TensorWave (~43 min) needed a click to approve, and Hyperstack (52 min) and Moonlite (57 min) relied on manual SRE steps. A failed NVL72 tray cannot be hot-swapped: Nebius returned a GB300 node to service automatically in 8 h 40 min. ClusterMAX 1.0 (Mar 2025) said top clouds spin up new nodes within 90 seconds, an unattributed observation rather than a measurement. |
| As of | 2026-09 |
| Source | SemiAnalysis ClusterMAX 3.0 · Blackwell/Grace Blackwell section (bar); provider reviews: AWS EKS Auto Mode 24 min and Together 35 min automatic; TensorWave ~43 min after a click to approve; Hyperstack 52 min and Moonlite 57 min with manual SRE steps |
| Review | checking…review by 2027-03-23 · standard cadence |
| Recorded changes | last 2026-10-19 · 3 revisions tracked |
| Claim id | automated-node-replacement-on-a-best-in-class |
Where the guide uses it
← Full numbers register — every date-stamped figure in the guide, with revision history.