Google fleet-wide CDU availability since 2020 (redundant pump+HX, UPS-backed)
~99.999%observed
| 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 | Vendor-reported availability of Google's own liquid-cooled TPU CDU fleet (Project Deschutes architecture, redundant pump and heat exchanger, UPS-backed) since 2020, across more than 2,000 TPU Pods. Google states neither the availability definition, the excluded-event list nor the measurement method, and the figure is not independently audited; it is not a rating for a purchased CDU and does not transfer to a non-redundant or non-UPS-backed installation. |
| As of | 2025-04 |
| Source | Google Cloud (Project Deschutes, OCP EMEA) |
| Review | checking…review by 2026-09-16 · standard cadence |
| Recorded changes | last 2026-09-16 · 2 revisions tracked |
| Claim id | google-fleet-wide-cdu-availability-since-2020 |
Where the guide uses it
- 5.6 CDUs & the Secondary Loop
- 5.11 Thermal Design, Reliability, Leak Detection & Commissioning
- 14.2 DCIM, Telemetry & Observability for GPU-Dense, Liquid-Cooled Facilities
← Full numbers register — every date-stamped figure in the guide, with revision history.