Firelock - Fireproof Data Storage

One of the things data center operators frequently ask me is how we are able to maintain the integrity of the vault with their cooling system’s needs for coolant lines penetrating the vault.  The answer is the insulated pipe penetration assemblies we install to protect this critical area.  Without the ability to adequately cool the server room equipment the data center will not function properly, and if the server room is not protected everything is lost in a disaster.

One very attactive option for cooling is the LiquiCool® Rear Door Heat Exchanger (RDHx) system offered by Coolcentric.  This type of system utilizes the airflow generated by the server equipment to push the warm air through the radiator-like heat exchangers in the units that replace the rear doors of the server cabinets.  This cools the air before it exits the rack and keeps the temperature in the server room at optimum levels.  Coolcentric’s RDHx system is very energy efficient and reliable because there are no fans or other moving parts on the server cabinets.  A Coolant Distribution Unit monitors the temperatures within the individual racks and increases or decreases the flow of chilled water to each unit as needed to achieve maximum efficiency.  Over time the total cost of ownership of RDHx systems is lower than conventional HVAC systems due to the reduced power consumption.

Coolcentric offers this product with a coolant line manifold that is located inside the vault, so only a single pair of supply and return lines is needed to penetrate the vault structure to connect to the water chiller unit.  This is ideal for maintaining the integrity of Firelock’s Class 125 data vaults.  Of course the coolant penetrations are just one component of the total vault system.  The vault structure, doors, dampers and cable penetrations must all meet the stringent Class 125 rating (the ability to maintain the temperature below 125-degrees F. even if the exterior temperature reaches 2,000-degrees).  As the old saying goes, ” a chain is only as strong as its weakest link.”  The same is true for data center design.  All components must work together to create a functional and safe environment for mission critical data center operations.

One of the most difficult aspects of server room design is managing the temperature inside this critical area.  As the density of server racks increases and the heat generated by the IT equipment escalates year over year it is no wonder data center designers must consider their cooling options carefully to maintain optimum server room temperatures.

One option we have found to be an excellent solution in high density data centers is the Vette Corporation line of rear door heat exchangers for server racks.  These systems cool the exhaust air from server cabinets before they enter the airspace within the server room by circulating chilled water through the unit.  Because this design utilizes the airflow from the fans in the server equipment there is no power consumption from the cooling units, resulting in significant operating cost savings.

To protect against ambient heat, especially in hotter climates, the R-33 insulation rating of Firelock vaults is a major advantage in maintaining the correct server room climate.  All cooling system penetrations in Firelock server vaults, such as for coolant lines and ducted air, are specially designed and installed to prevent the heat from a fire from damaging or destroying the most critical area of the data center.  And of course the vault structure and doors are capable of maintaining the temperature below 125-degrees F. for at least two hours (up to four hours in larger server vaults) even if the outside temperature reaches 2,000-degrees.  Heat must be held below this critical threshold to protect the IT equipment and the vital information it holds.  After all, mission critical data centers must be protected from all threats–from within and without.

In this era of volatile energy prices and constant pressure to reduce operating expenses, operations and facilities managers are looking for savings everywhere.  Environmentally-friendly corporate initiatives are also in style these days.  “Green” is in.  Cutting costs without compromising security can be a daunting task, but there is one way fire protection can be improved while reducing power consumption: installing a Firelock Class 125 data vault to protect server rooms and/or data tape archives. 

The fireproof modular vault panels are constructed with a core of ceramic fiber insulation to keep the interior of the vault below 125-degrees F. for two to four hours (depending upon the size of the vault), even if temperatures outside the vault reach 2,000-degrees F.  A beneficial byproduct of the ceramic fiber content in Firelock panels is the R33 insulation rating.  To put this in perspective, the typical rating offered by fiberglass insulation in homes and businesses is R14.

To maintain the optimum climate inside the vault chamber Firelock offers protected penetrations for either ducted air or coolant lines for split systems.  Data centers can also use these ducts to vent the heated air in the “hot aisle” out of the server vault.  This heated air can be circulated throughout the office space to gain even more cost savings on utilities in the winter.

Unsurpassed fire protection and improved energy efficiency is a Win/Win for those responsible for security and operating expenses.  This is one way going Green can save you some green in the long run.