Enterprise Data Center
Client: Confidential Client
Summary: SIGMA7 successfully developed, designed and delivered a new enterprise data center that met the stringent requirements of the client, while ensuring uninterrupted operation and ongoing business continuity. The financial client's primary server farm relocation was necessitated due to an operational mandate requiring the relocation from it's former office location. The Tier III concurrently maintainable facility was constructed and migrated without any disruption to the ongoing operation of the campus, building, or data center.
Our approach to the execution of the data center build-out and relocation featured implementation of the new facility without any disruption to the ongoing operation of the building or data center.
The new mechanical Infrastructure was placed on the roof and hidden on all sides behind new walls constructed to look like a typical floor. Data Center cooling system consisted of a 2N air-cooled chilled water plant with economizers, variable primary pumps, and a looped piping configuration with sectional valves. Interior CRAH units were designed for N+2 redundancy with a raised floor plenum supply and ceiling plenum return configuration for load density and containment flexibility. Data Center pressurization is maintained by 100% conditioned outside air system with HEPA filtration. Humidification is maintained by adiabatic humidifiers for energy efficiency. Fuel system consists of 2N tanks and transfer systems to maintain 72 hours of generator power.
The electrical system upgrade included installation of two (2) new electrical services. In the event of a single utility feeder failure, the facility can continue to be provided with utility power without relying on backup generators. Two (2) new generators in a 2N redundant configuration were also installed for additional backup. New UPS modules were installed in a 2N distributed redundant configuration along with UPS output switchboard. This provides the ability to perform momentary overlapping transfers from one side of the UPS system to another (A to B or B to A) without disruption in service. New load banks were installed to facilitate generator and UPS testing. Power distribution for mechanical equipment was installed to match mechanical redundancy.
Data Center and ancillary spaces are protected by cross-zoned doubled interlocked pre-action systems interlocked with the life safety system. New BMS and security systems were installed and integrated with the existing systems.
Pre-cast panels with thin brick and stone sills and caps were designed to seamlessly mimic the finish of the existing facility.
The resilient reinforce concrete panels provide for a hardened exterior and quick installation.
Multiple cranes were used by the rigger to quickly pick, set, and erect the precast panels.
The finished construction is virtually identical to the original construction.
The end of row remote power panels (RPPs) are color coded black and blue for the redundant (A/B) source power. Copper and fiber are distributed on overhead ladder rack and within fiber trough to free up the access floor plenum.
The facility is strictly organized based upon hot/cold aisle configuration. Cooling is distributed within the uncluttered access floor plenum and returned via ceiling plenum to the snorkeled dual powered CRAH units.
The new hardened mechanical and electrical yard supports the operation of the data center facility. Detail image of the generator fuel storage con-vault.
Redundant exterior generator plant installed within acoustic weatherproof enclosures. The generators are also compartmentalized between reinforced blast walls.
The well-organized yard includes air-cooled chillers and dry coolers. Chilled water distribution is stacked for efficient placement and ease of access.
Detail of supply and return chilled water piping and distribution at an air-cooled chiller.
The elevated precast panel parapet provides excellent screening for the equipment hidden behind. Chilled water connections to a dry cooler.
Chilled water supply and return piping along with the electrical conduits are installed on overhead racks.
The use of closed loop dry coolers and air-cooled chillers eliminates the need for water to support evaporative cooling. Water conservation is a major benefit as is the reduced cost for water usage and sewage outflow costs.
