Data Center Site: How Deep Can You Go? Efforts to retrofit subterranean bunkers into functional data center space have been underway for years. But as power requirements and security considerations have intensified, selecting underground sites that are specifically designed from day one to house mission critical infrastructure is a new trend. Ultra-secure underground data center space is being fueled by projected energy, security and regulatory benefits relative to above ground alternatives.




Metric | M-LAB | OOKLA |
Average Download Speed (mbps) | 7.04 | 11.5 |
Median Download Speed (mbps) | 3.95 | 8.14 |
Average Upload Speed (mbps) | 2.74 | 2.09 |
Median Upload Speed (mbps) | 0.87 | 1.01 |



John Will Speak On President/CEO Panel IMN's Data Center Forum John Clune, President of Cavern Technologies--the Midwest's premier underground data center-- will speak on the President/CEO Panel, at IMN's upcoming Data Center Forum. The two-day event will be held at the Hyatt Regency Century Plaza, Los Angeles, CA, on November 8th and 9th. October 31, 2010 John Clune, President of Cavern Technologies--the Midwest's premier underground data center-- will speak on the President/CEO Panel, at IMN's upcoming Data Center Forum. The two-day event will be held at the Hyatt Regency Century Plaza, Los Angeles, CA, on November 8th and 9th. The Forum on Financing, Investing and Real Estate Development for Data Centers features leading industry experts who will address the successes and challenges of the data center industry, including over 20 Presidents, CEOs and COOs of Data Center companies. Data Centers, the emerging asset class that investors need to seriously consider for their investment portfolio, has continued growing throughout the recession. With demand doubling every two years, many believe this is the one place where 20% returns are still possible. The major highlight of the conference are the 20 data center Presidents and CEOs who will be speaking at the conferencesays Steven Glener, Senior Vice President at Information Management Network, the forum host. They will be addressing the key financing, expansion, corporate strategy, capital markets, power and technology, from a C-Suite level -- a unique and critical perspective, exclusive to the IMN conference. Cavern Technologies specializes in the development, leasing and operation of build-to-suit wholesale data centers, located 125-feet underground in a 3 million square foot facility designed for energy efficiency, housed in an environmentally regulated, secure infrastructure. Cavern Technologies' world-class data center and collocation facility is SAS-70 certified and designed to meet the specialized power, cooling and security requirements companies need to house IT systems that support their mission-critical business processes. Cavern provides tenants with unique business solutions and a value proposition focused on minimizing the total cost of ownership of data center and collocation infrastructure.
SubTech Data Center is a ground-level facility built inside solid limestone,
There are solutions that use fiber rings to deliver services, but even fiber rings have single points of failure: The telephone exchange central offices.
The only way to have true IP redundancy is to have different connections from multiple IP transit providers from opposite directions, that use different local fiber networks, from entirely different companies. Most data centers try to meet these needs using fiber paths from carriers not bound by telephone tariffs. However, this “solution” was accompanied by a host of other problems.
In terms of physical security, every data center investigated shared a common building with other tenants. Either the data center was an afterthought and added to an existing building (server closet that grew in to dedicated space), or it was purpose built but with much office space and other common space in the same facility. Both of these types of shared structures increase the risk of collateral damage due to fires in the same building, and to security risks due to the large numbers of people sharing the facility. The best data center fire suppression system in the world doesn’t do a bit of good if the office above it building burns down on top of the data center.
Major shortcomings in physical security were also a recurring theme during the search for a data center. Many facilities share common space with other businesses. Despite partitioning off a building, the common mechanical facilities such as chiller plant, and electrical, are typically shared with other tenants. Obtaining building wide security is difficult not only due to the different tenants sharing common areas, but due to reception areas in buildings that were open to the public and entirely unsecured. Most “secure” server spaces were found to be secured from public areas by walls made of sheet rock! Some sheet rock walls contained windows! We desired something a little more secure than two layers of half inch thick sheet rock, or a single pane of glass.
Despite finding several facilities that all claimed to be “hardened” and able to withstand the force of a tornado with walls made of reinforced concrete, and at least one door made of steel with no windows to the outside world, further investigation revealed that at most, they were only partially below ground, (walk out basement) and all lacked physical plant equipment that was designed to operate during major contingencies. They also shared office space in the same building. Time and time again, it was found that 100% of the data centers had their heat rejection and standby power systems above ground. And in no case were the generators or air conditioning systems “hardened” at all. While the servers may survive if the data center took a direct hit from even a small EF-1 tornado, they would not remain operational for any length of time once the uninterruptible power supply batteries were exhausted. Even if the connectivity and building itself survived, and a generator was tough enough to operate after a storm or tornado, the external cooling would not. Even with power, the servers would quickly overheat, leading to downtime, and possible data corruption or loss.
Some data centers that claimed to be “hardened” were found to require a constant feed of municipal water for on site cooling. With all of the redundancy built in to the site, the whole data center could fail due to a non redundant source of cooling water that could be interrupted due to a pipe break, power outage, earthquake, or even simple maintenance. Or the whole data center could fail due to a water pipe break that would flood the facility with a high pressure torrent of municipal water.
Then there were the data centers located in flood plains. We were shocked at just how many data centers were located in flood plains. More alarming was the “head in the clouds” attitude that most had about the flood plain being entirely acceptable because the data center was on an upper floor.
The harder we looked, and the more we uncovered, the more discouraged we became. Eventually however, USSHC solved all of these problems, and then some.
The idea behind USSHC was to provide a safe, secure place to house an Internet Service Provider that would be immune from any form of disaster, “deep in an Iowa underground bunker” where the power would always stay on, and the servers would always stay connected, fully online, and fully operational, despite what was going on in the outside world.
Since it went live in 2002, the facility has been expanded to allow other companies to share the same level of redundancy, security, and performance.
In 2009, USSHC opened the GWAB (Geek with a box data suite) to offer an economical alternative to our premium data center colocation offerings.
| Name | InfoBunker, LLC | The Bunker | Montgomery Westland | Cavern Technologies | Iron Mountain The Underground |
|---|---|---|---|---|---|
| Location | Des Moines, Iowa* | Dover, UK | Montgomery, Tex. | Lenexa, Kan. | Butler County, Penn.* |
| In business since | 2006 | 1999 | 2007 | 2007 | Opened by National Storage in 1954. Acquired by Iron Mountain 1998. |
| Security /access control | Biometric; keypad; pan, tilt and zoom cameras; door event and camera logging | CCTV, dogs, guards, fence | Gated, with access control card, biometrics and a 24x7 security guard | Security guard, biometric scan, smart card access and motion detection alarms | 24-hour armed guards, visitor escorts, magnetometer, x-ray scanner, closed-circuit television, badge access and other physical and electronic measures for securing the mine's perimeter and vaults |
| Distance underground (feet) | 50 | 100 | 60 | 125 | 220 |
| Ceiling height in data center space (feet) | 16 | 12 to 50 | 10 | 16 to 18 | 15 (10 feet from raised floor to dropped ceiling) |
| Original use | Military communications bunker | Royal Air Force military bunker | Private bunker designed to survive a nuclear attack. Complex built in 1982 by Louis Kung (Nephew of Madam Chang Kai Shek) as a residence and headquarters for his oil company, including a secret, 40,000 square foot nuclear fallout shelter. The office building uses bulletproof glass on the first floor and reception area and 3-inch concrete walls with fold-down steel gun ports to protect the bunker 60 feet below. | Limestone mine originally developed by an asphalt company that used the materials in road pavement | Limestone mine |
| Total data center space (square feet) | 34,000 | 50,000 | 28,000 plus 90,000 of office space in a hardened, above-ground building. | 40,000 | 60,000 |
| Total space in facility | 65,000 | 60,000 | 28,000 | 3 million | 145 acres developed; 1,000 acres total |
| Data center clients include | Insurance company, telephone company, teaching hospital, financial services, e-commerce, security monitoring/surveillance, veterinary, county government | Banking, mission critical Web applications, online trading | NASA/T-Systems, Aker Solutions, Continental Airlines, Houston Chronicle, Express Jet | Healthcare, insurance, universities, technology, manufacturing, professional services | Marriott International Inc., Iron Mountain, three U.S. government agencies |
| Number of hosted primary or backup data centers | 2 | 50+ | 13 | 26 | 5 |
| Services offered | Leased data center space, disaster recovery space, wholesale bandwidth | Fully managed platforms, partly managed platforms, co-location | Disaster recovery/business continuity, co-location and managed services | Data center space leasing, design, construction and management | Data center leasing, design, construction and maintenance services |
| Distance from nearest large city | Des Moines, about 45 miles* | Canterbury, 10 miles; London, 60 miles | Houston, 40 miles | Kansas City, 15 miles | Pittsburgh, 55 miles |
| Location of cooling system, includng cooling towers | Underground | Underground | Above and below ground. All cooling towers above ground in secure facility. | Air cooled systems located underground. Cooling towers located outside | Chillers located above ground to take advantage of "free cooling." Pumps located underground. |
| Location of generators and fuel tanks | Underground | Above ground and below ground | Two below ground, four above ground. All fuel tanks buried topside. | Underground | Underground |