N+1 Power Redundancy
Power failure can kill the most sophisticated technology. Power systems in Rackspace data centers are designed to run uninterrupted, even in the unlikely event of a total power outage. All servers are fed with conditioned UPS (Uninterruptible Power Supply) power that will run if utility power fails. The UPS power subsystem is N+1 redundant with instantaneous failover in case the primary UPS fails. In the event of an extended power outage, on-site diesel generators can run indefinitely. Generators are regularly tested to ensure functionality in the event of an emergency.
The data center's HVAC (Heating Ventilation Air Conditioning) systems are N+1 redundant to ensure that-even in the event of an entire HVAC system failure-there is a duplicate system on standby to take over. All air is circulated and filtered every 90 seconds to remove dust and contaminants. An advanced fire-suppression system is in place to prevent any fire from spreading-in the unlikely event that one could start. All cables to servers and routing equipment are securely tied down and cable racks suspended from the ceiling provide dual routes for all cables.
Core Routing Equipment
Rackspace uses only fully redundant, enterprise-class routing equipment housed in its own secure, core routing room and fed with its own redundant power supply. Their fiber carriers enter the facilities at disparate access points to ensure that there is no service failure, even in the unlikely event of a fiber cut.