QuadraNet Goes Green – Expands into 8th LA Data CenterQuadraNet, Inc. A leader in data center services with locations in Los Angeles, California; Dallas, Texas; and Miami, Florida is expanding again! We are building our 8th data center at 530 W 6th Street right in the heart of downtown Los Angeles.
This new addition will be reducing QuadraNet’s carbon footprint and enhancing our efforts to provide a more efficient, earth friendly hosting environment.
What makes this new Data Center different?
One of the benefits of our new data center is the implementation and utilization of ‘Airside Economization’. This engineered solution will drastically reduce the amount of CRAC related energy consumption and costs, while increasing efficiency across the board and providing additional redundant capacity by having less total BTU’s required to be directly cooled by the CRAC’s.
We have put together a brief overview and introduction of the new LAX8-2 datacenter during its final construction phase. The majority of all infrastructure is now in place and is in the final process of being integrated with each other. Turn up is expected in the next few weeks with first client move-in’s occurring approximately at the end of June.
At this current stage, the cabinets, turbines, UPS (Uninterruptible Power Supply) and ATS (Automatic Transfer Switch) are installed and our contractors are completing the electrical work to deliver power circuits to cabinets.
The solution was designed on a whole to enable QuadraNet to offer environmental efficiency and performance with the ability to direct cooling exhaust directly to each individual cabinet’s intake. The facility is designed in cold row / hot row layout with the hot rows designed to be semi-contained with in-row, cabinet directed heat intakes which expediate the flow of hot server and equipment exhaust directly to the CRAC’s or vented to atmosphere using our air-side economizer. Traditional datacenter designs allow for the hot exhaust to linger in hot rows and eventually make its way back to the CRAC returns, however this allows the exhaust heat to co-mingle with other sections of the datacenter including the cold rows.
How does this work?(Click on image for full size)
The ‘air-side economizers’ are very beneficial for both the clients, and the data center. Overall, it works like this: if the temperature outside is cold enough, the turbines will intake the cool air, filter it to remove dust and particulates, and then distribute it to all of the “cold rows” of cabinets. On the other hand, if the temperature outside is too high; the turbines will begin exhausting the hot exhaust air produced in the “hot rows”, out the datacenter directly to atmosphere.
Here’s a more detailed overview below.
The economizer operates in one of three ways:
(1) Not in use : CRAC’s Cool air from hot-row and deliver it to cold row. This happens when the outside temperature is above the hot-row temperature. This is traditional datacenter operation.
(2) Half in use : CRAC’s Cool air from outside and delivers it to the cold row. Server Exhaust is vented directly to atmosphere. This happens when the outside temperature is below the hot-row temperature, but above desired cold-row temperature.
(3) In use fully : Does not cool air. CRAC’s run their internal fans to move outside air directly into cold rows after filtration. This happens when the outside temperature and humidity is at desired cold-row environmental specifications.
Those large turbines don’t switch direction. The plenum has dividing sections which has dampers that can be shut or open. In addition, there are dampers between the outside air and the middle plenum section (where the CRAC’s have their intake). This can control the CRAC’s intake (from the hot row, or from outside). The ability to open or close the dampers and turn on or off the turbines automatically is how the economization works.
There are 3 separate plenum areas.
#1 is where the CRAC’s intake from which has dampers to the outside air which can be open or closed (as well as dampers connecting it to the plenum around the exhaust turbines)
#2 are where the exhaust turbines are which have dampers to connect it to the rest of the plenum (where the CRAC’s intake from).
The plenum around both exhaust fans *only* contains hot air. Depending on operation, it will either
(1) Turn the turbines on and shut the dampers connecting it to CRAC intakes (so it only blows the hot air straight out) OR
(2) Turn the turbines off and open the damper connecting it to the CRAC intake (so that the hot air is processed by the CRAC units).
The plenum for the CRAC intakes will open the dampers to the outside air if the temperature is reasonably low.
If the temperature is colder than the hot-row, but NOT cold enough for the cold row, the AC’s will open the damper from the outside and cool the outside air while closing the dampers to the exhaust fan plenum and turn the exhaust fans on.
If the temperature is within range for cold-row temps, the AC’s will open the damper from the outside and turn their own compressors off. The AC’s will use their own internal fans to blow the cold air from the outside directly into the cold row after proper filtration of dust and particulates.
The economizer will not be in use when the temperature of the outside air is HIGHER than the hot-row temperature. In this case, the exhaust fans will be off, the dampers to the outside world will be closed, and the dampers to the exhaust fan area will be OPEN allowing the CRAC’s to cool the air directly from the hot-rows.
The new space was built to house 100 racks and adequate cooling to handle full datacenter load. In order to improve the efficiency of the HVAC systems on the floor and reduce yearly energy demands by our HVAC equipment, the space was designed with air-side economization in mind.
If the outside air is within permissible cold row environmental specifications, the HVAC units will turn off their compressors and simply blow the air from the outside to the cold-rows. Filters ensure that the outside air brought in is kept to datacenter specifications for particulate matter. This will enable us to reduce our carbon footprint yearly as the Los Angeles climate is one well-suited to air-side economization.
We utilize the tried-and-tested battery backed UPS power units to ensure seamless transitions to backup-power in the event of a utility power outage. This will enable us to deliver large amounts of UPS-backed power to ensure the critical technical load is not interrupted.
The ATS is used to switch power automatically to generator backed power as well as signal the generator to start-up. This ensures that in the event of an outage more than a few seconds, power will be backed by diesel generators allowing the UPS equipment to not discharge for length periods of time.
The facility is also equipped with a TVSS (Transient Voltage Surge Suppressor) to ensure that acts of nature (lightning strike for example) don’t cause damage to equipment on the floor.
Ladder rack has been laid in to facilitate neat above-the-rack wiring for fiber or copper cross-connects. All cabinets are pre-wired with copper patch panels for our Public Network, Private Network, and Remote Rebooter network for dedicated servers. Colocation clients can take advantage of our Public and Private network pre-wiring.