Server rack

Abstract

This application is directed to protection of metallic materials applied in a cooling system of a server rack. The server rack includes a rack structure having a plurality of slots configured to receive one or more rack servers. One or more coolant distribution manifolds (CDMs) are mechanically coupled to the rack structure, passing the plurality of slots. A cooling distribution unit (CDU) is disposed in the rack structure. The CDU is configured to provide a coolant to the CDMs and collect the coolant from the CDMs, thereby circulating the coolant to carry at least part of heat generated by the rack servers away from the plurality of slots. The CDU further includes a metallic enclosure configured to hold the coolant and an anode component electrically coupled to the metallic enclosure. The anode component is configured to be partially immersed in the coolant and provide cathodic protection to the metallic enclosure.

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