Data Center and Server Information
Servers
Numatek uses fault tollerent servers in all system implementations. Fault tollerent hard drives, network cards, power supplies, and processors are used on all servers. In the event a hardware component fails that is not fault tollerent the NOC technical staff provides remote hands and will be available to address any issues. All equipment is covered under high level service contracts with the manufacturer (Dell or HP). The servers are monitored 24x7 and will page our on-call staff in the event of a system outage.
Power
Electrical power to the Data Center is delivered by redundant feeds from the Xcel Energy Surrey Ridge substation. The electric service in the building is connected to parallel redundant Powerware UPS units, which deliver conditioned power to the data center via a Starline Bussway system. This system eliminates the need for traditional power distribution units (PDU's) and enhances the reliability of the system as well as making "A" and "B" power available to every computer equipment cabinet. The power is backed up by two diesel generators connected to separate automatic transfer switches (ATS).
Environmental
We understand that just powering equipment is not enough to meet the needs of today's demanding infrastructure components, the equipment must be kept cool and stable in order to operate properly. Cooling and humidity is controlled by air handling units (AHUs) featuring N+1 and N+2 redundancy. The AHU's keep the operating environment in the Data Center at 70 degrees with 45% humidity with variation of no more than +/- 4 degrees of temperature and 4% humidity.
To ensure that optimal cooling and air circulation is available at all times, air flow studies are conducted and an analysis with infrared heat sensing cameras is performed on a regular basis.
Security
Access to the data center is controlled by access card and biometric scanning systems. All data center entrants must be authorized Network Operations Center (NOC) personnel prior to entry to the facility. For additional security, entrance to all raised-floor and colocation areas requires both a biometric scan and use of the access card.
In addition to human, access card and biometric security, more than 40 high-tech cameras, connected to a closed circuit digital video recording system monitor the data center. This system provides NOC staff with the ability to visually monitor all doors to the data center and all cabinets within the data center. The system detects any movement, triggering one or more of the cameras to capture a digital image of the movement, which is recorded and archived. The images are archived periodically and can be transferred to any digital media on-demand.
Fire Detection and Suppression
Fire detection within the Data Center is provided by an early detection alarm system monitored both within the Network Operations Center (NOC) and by Honeywell as a backup, third-party monitoring service. The monitoring system informs the NOC staff of the specific alarm generating the warning and its location. The Data Center has detectors installed both above, and below, the raised floor.
The fire suppression system is a pre-action, dry pipe which would discharge water only from the appropriate locations when the heat in the Data Center increases enough to trigger a fire sprinkler head. The discharge of a sprinkler would signal the emergency power-off switch, which would simultaneously turn off the commercial electrical power to the Data Center and switch to UPS power.
