Containment
Physically separating hot and cold air (cold-aisle, hot-aisle, or chimney) so cooling air is not wasted by mixing.
Current numbers
67 daysPonemon 2026 insider incident containment duration (2025 observations); detection excluded
~30–50 kWin-row cooler capacity per cooling unit (Liebert CRV CR032–CR050); kW per rack depends on unit-to-rack ratio, containment and air conditions
241 daysIBM 2025 data-breach identification plus containment: both stages combined