K07 · evidence-bundled critical-infrastructure assurance
Cooling independent safe state
Direct answer
Define minimum cooling functions, independent local control, fail-safe states, protected sensors, and restoration priority outside the ordinary compute orchestration plane.
Authority and evidence boundary. K07 publishes knowledge architecture, bounded reference records, procurement structures, local validation tools, signed synthetic fixtures, and point-in-time source review. It does not certify a facility, award a contract, authorize an operation, prove truth, establish deployment, or claim current operation.
Context
Cooling failure can create rapid compute loss and may interact with generation or facility safety systems.
Proposed reference decision
Define minimum cooling functions, independent local control, fail-safe states, protected sensors, and restoration priority outside the ordinary compute orchestration plane.
Alternatives considered
- single building-management plane
- cloud-only control
- manual-only recovery
Consequences
- additional independent sensors and actuators
- clear thermal recovery evidence
- reduced blast radius from compute compromise
Defeaters and reversal conditions
- unknown thermal inertia
- single shared controller
- unvalidated emergency power
- sensor common-cause failure
Source relationships
- NIST SP 800-82 Revision 3 — K07 Official Review Record — National Institute of Standards and Technology; Revision 3; FINAL; REVISION 4 PRE-DRAFT PROCESS OPENED 2026. Exact claim-support entries: 1. Revalidated 2026-08-15T23:30:00Z.
- DOE Cyber-Informed Engineering — U.S. Department of Energy, CESER; Official program page reviewed 2026-08-15; OFFICIAL PROGRAM GUIDANCE. Exact claim-support entries: 1. Revalidated 2026-08-15T23:30:00Z.
Use boundary
This record is a proposed reference decision. A competent owner must bind it to actual site constraints, authority, hazards, license conditions, interfaces, implementation evidence, and change control.