Centralization, and in some cases outsourcing to off-site hosted facilities, is a current trend that continues to unfold in response to the 2008/2009 recession.

This centralization has placed a tremendous focus on the construction of new, more reliable, and more redundant infrastructure than ever before.

Did you catch the operative words there? "New" and "More" ... Yes, as this centralization brings a greater amount of technology closer together physically, so too does it centralize the consumption of power ... and naturally the generation of heat.

It's easy to take data center HVAC systems for granted. They operate with little ongoing maintenance and accommodate modest ongoing growth without upgrade or change.

Many existing data center HVAC systems, however, may not incorporate the level of scalability demanded by the times. This is especially true for managers of small and medium-sized business server rooms and private, corporate data centers where the HVAC systems were designed around the narrow scope of a traditional client/server environment.

All of this makes now a good time to proactively look at data center HVAC systems to determine the level of upward mobility available.

Christian Perry of Processor Magazine offers an article with tips like using temperature monitors strategically positioned throughout the data center to monitor temperatures over time and implementing power management systems that reduce the stress placed upon HVAC systems.

Remember, infrastructure projects like these should take a well-planned and methodical approach. Allow a few months to track and develop metrics before doing anything. This also gives your team ample time to carefully analyze the alternatives, reach out to specialists, and determine the degree of future expandability to build in to any upgrades.

In cases where improvements are being made to systems already in place, Eric Silva of E&S Construction Engineers in Maryland recommends taking an integrated approach.

Simply implementing a patch to fix a heating problem or otherwise making an improvement without proper planning, he says, "will cause the system to compensate in some other area."

Silva also reminds that engineers who engage regularly in developing HVAC systems in data centers have a broad base of proven expertise they use to routinely develop the most cost effective solution possible.