The Importance of Data Center Backup Power

We all know every data center needs optimal uninterrupted power 24/7. Any lapse in power whatsoever can be devastating because files can be lost or corrupted, mainframes can malfunction, and, ultimately, money can be lost. The following article provides useful information about data center backup power and why it is essential.

Function

Backup generators provide power when the main power source is interrupted. Unfortunately, many data center components do not easily handle power spikes due to switching from a normal to an emergency power supply. A total system restart is often required when these components lose power, even momentarily. Regrettably, this can cause system downtimes, startup issues, corruption of parts, and loss of in-process information.

Normal vs. Emergency

All data centers function either in normal mode, wherein they operate from supplied utilities, or in emergency mode, wherein they operate from standby generators. In normal mode, utility power is routed through the automatic transfer switch and into the switchgear. The switchgear is configured for critical (components that need uninterrupted power, such as data centers or UPS) and non-critical (like HVAC or work stations) supplies.

When we’re talking about data center “components,” we’re talking about the following…

• Utility Power – Main power source for facility
• Emergency Generator – Supplies power when utility power is not available
• Automatic Transfer Switch – Routes utility or emergency generator power to switch gear
• Switch Gear – Routes utility or emergency generator power throughout
• Uninterrupted Power Supply – Consists of battery bank, charger and inverter

Your data center backup power supply has to account for all of these components. If your data center backup power supply is adequate, then when utility power is lost in the facility, the following chain of events will occur:

• UPS supplies power to security and data center.
• Emergency generator starts and automatic transfer switch transfers to emergency power.
• Switch gear routes power to Critical and Non-Critical loads.
• UPS transfers to normal operation and Data center and security are powered by emergency generator.
• When normal power is resumed, the automatic transfer switch routes power to utility and critical and non-critical loads are powered.

In this chain, there is no interruption of power for data center or security and they continue to function normally.

Conclusion

As you can see, the importance of data center backup power cannot be understated. Having uninterrupted power to critical components can be a matter of life and death! Contact us at Woodstock Power for more information.