What Is Redundant Power Feed?_
In data-center power distribution, a redundant power feed means each piece of equipment receives power from two separate sources—typically two distinct PDUs or two utility feeds. If one feed drops, the other continues to supply full load without interruption. This design supports fault tolerance and planned maintenance without downtime.
Technical Details
Redundant feeds are usually implemented as A and B feeds, each routed through separate circuit breakers and PDUs to avoid a single point of failure. Equipment must have dual power supplies (or a single supply with dual input capability) to accept both feeds. The feeds are often derived from independent upstream UPS systems or utility transformers to protect against broader electrical faults.
How Leviathan Systems Works with Redundant Power Feed
During rack assembly, we install and label both A and B power whips per the site power plan, verifying that each GPU server and switch receives both feeds. In liquid-cooled racks, the CDU and pump controllers also get redundant feeds to keep cooling running if one feed fails.
Related service
GPU Rack Assembly & Rack-and-Stack →