CompTIA Server+ (SK0-005)Server Hardware Installation and ManagementMedium
A server administrator is commissioning a new high-density server rack. To ensure optimal cooling and prevent hot air recirculation from the rear (exhaust) of the servers to the front (intake), the administrator decides to implement a physical barrier. Which of the following cooling strategies is the administrator implementing?
- AIn-row cooling units
- BRaised floor plenum
- CHot aisle containment
- DCold aisle containment
Show answer & explanationAnswer & explanation
Correct answer: C. Hot aisle containment
Hot aisle containment physically separates the hot exhaust air from the cold intake air by enclosing the hot aisle, preventing hot air from recirculating into the server intakes. This improves cooling efficiency and prevents hot spots.
Why the other options are wrong
- A. In-row cooling units are placed between racks to cool air, but don't specifically describe a physical barrier for hot air recirculation from rear to front.
- B. A raised floor plenum is for delivering cold air to the cold aisles, not for containing hot exhaust.
- D. Cold aisle containment encloses the cold air intake path, but the scenario describes preventing hot air recirculation from the rear.
Hot Aisle Containment
A data center cooling strategy that physically separates the hot exhaust air from server racks from the cold intake air by enclosing the hot aisle.
- Prevents hot air recirculation into server inlets.
- Increases cooling efficiency and reduces energy consumption.
- Typically involves doors at the ends of the aisle and a roof over the hot aisle.
Memory trick: Contain the 'Hot' air to keep the servers 'Cool'.