Liquid cooling of rack-mounted electronic equipment

摘要

A server rack holds a number of modular servers configured for liquid cooling by passing a liquid coolant through interiors of the servers. Failure management of the cooling system is by management of the servers in segregated fault domains. Each fault domain comprises a number of the servers serviced by a dedicated coolant circuit that is segregated from the cooling circuits of the other fault domains. Potential liquid coolant leaks in a specific fault domain can be identified by monitoring liquid coolant levels in the respective coolant circuits. Each fault domain can include a separate, dedicated heat exchanger and a separate, dedicated coolant reservoir.

主权项

1. An assembly comprising:
a plurality of heat exchangers configured to transfer heat to a heat disposal medium from liquid coolant passed in heat exchange relationship through a set of rack-mounted modular electronic equipment units, each of the plurality of heat exchangers configured for liquid-flow connection in a respective equipment-side coolant circuit that passes liquid coolant through a respective, exclusive subset of the electronic equipment units, the equipment-side coolant circuits of the respective heat exchangers being in liquid-flow segregation from one another; and a plurality of coolant reservoirs, each in liquid-flow communication exclusively with a corresponding one of the plurality of heat exchangers to deliver supplemental liquid coolant to the corresponding equipment-side coolant circuit responsive to coolant loss therefrom.