How much a rack can take.
WHAT DENSITY MEANS
Power consumed per rack, expressed in kilowatts.
WHAT TRADITIONAL FACILITIES SUPPORTED
Relatively modest figures per rack.
WHAT MODERN EQUIPMENT DEMANDS
Considerably more, and specialised workloads far more again.
WHY THAT MATTERS
An older facility may be unable to power a modern rack at full occupancy.
WHAT THAT PRODUCES
Racks half filled, because power runs out.
WHAT TO ESTABLISH BEFORE COMMITTING
The power allocation per rack What happens if you exceed it Whether more can be provided, and at what cost
WHAT TO CALCULATE
Actual consumption of your equipment, not its maximum rating.
WHY
Nameplate ratings are far above typical consumption.
WHAT TO MEASURE
Real consumption, once installed.
WHAT TO PLAN
Headroom, since consumption rises as equipment is added and as load increases.
WHAT TO MONITOR
Consumption trending toward the allocation.
WHAT TO AVOID
Discovering the limit by tripping a breaker.
