500-5,000 sq. feet; 10+ rack enclosures with servers (30+), storage, and networking equipment
Facility air conditioning (perimeter cooling), supplemented by row/rack cooling
Rack enclosures are typically arranged in rows for hot-aisle/cold-aisle cooling configurations
In-rack single-phase UPS systems, often supported by centralized 3-phase UPS
Power Density: With the switch to more powerful servers and high density configurations, the power consumed by equipment in a single rack enclosure has grown dramatically and often exceeds the original design capabilities of the typical data center.
Energy Efficiency: Greater concentration of processing power is also causing budget headaches for data center managers. Because each kW of power requires an additional one kW of cooling to remove the heat generated, cooling costs can exceed 40% of total data center costs.
Security: Recent high-profile security breaches have highlighted the need for more stringent security measures, including physical security and monitoring of the data center itself.