Power, cooling and rack density at Worldstream's data centres
Kort antwoord
Worldstream's colocation facilities run N+1 redundancy with dual power feeds, a PUE of 1.15, and support up to 10kW of power per rack. This article covers what those figures mean in practice for a colocated rack.
Redundancy: N+1
The facilities are built on an N+1 redundancy model: for every component that's actually needed to run the facility, there's at least one extra in reserve. That means a single component failure, a power module or a cooling unit, doesn't take the facility down, because the spare capacity absorbs it while the failed component is repaired or replaced.
Power: dual feeds, A and B
Racks are fed by dual power supplies, an A feed and a B feed, coming from independent paths. If you deploy hardware with dual power supplies of your own, plugging one into each feed means a fault on either path doesn't interrupt power to your equipment.
Cooling efficiency: PUE 1.15
Power Usage Effectiveness (PUE) measures how much total facility energy goes into running the IT equipment versus overhead like cooling. A PUE of 1.0 would be perfect efficiency, with none lost to overhead. Worldstream's facilities run at a PUE of 1.15, meaning for every unit of energy delivered to IT equipment, roughly 0.15 units go to cooling and other facility overhead. A lower PUE generally reflects a more efficient cooling design.
Rack density: up to 10kW per rack
Racks support up to 10kW of power each, which covers high-density deployments, dense compute or GPU hardware included, without needing to spread the same equipment across more racks than necessary.