Data Centers and the Local Environment in .NET framework

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Data Centers and the Local Environment
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Physical security. The holes between the wires were large enough for fingers, so any cords or systems that were near the edge of the cage were potential targets of mischief. If someone got into the facility with a broomstick handle, the person could inflict serious damage on many of the clients in very short order. Public cable runs. If your company had two cages located at opposite ends of the facility, and you needed to run cables from one cage to the other, those cables would pass beneath cages belonging to other organizations. Someone might be able to lift up a floor tile and intentionally or accidentally damage or break your critical data cable. There was no protection at all against that sort of calamity. Anonymity. In a most sensible move, cages were not labeled with the identity of their owners. However, many clients labeled their systems with asset tags that clearly identified the name of the company who owned them. Some administrators considered it to be a game to figure out who owned which cages. Impact of others problems. If one cage had a fire or some other kind of serious physical problem, neighboring cages would be affected through no fault of their own. Impact on recovery time. If a system is located a 45-minute subway ride away from the main office, how will travel time impact recovery time, if a visit is required Physical space. Is there room in the cage for all of the equipment Can you arrange it without violating the China Syndrome model Will there still be room to move around the equipment Will you be able to repair one system without affecting any of the others Adequate cooling and power. Early-generation OHFs were not prepared for the onslaught of customers that they saw. They did not have sufficient cooling or power, and customers were often forced to shut down their busy equipment to conserve power or to prevent overheating. Beware of large temporary cooling units in the aisles between cages; that s a sure sign of trouble. Safe working conditions. Small, cramped cages filled with lots of equipment and cables are a surefire recipe for trouble. There are tripping and banging hazards galore for system administrators under these conditions. The removal of raised floor tiles makes tripping and falling even more likely.
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RUNNING HOT AND COLD
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Once when I was working in an OHF on a very hot August day in New York, I walked past one cage, where a system administrator sat, furiously typing on his keyboard. Nothing unusual about that, except that he was wearing a down ski parka, zipped up to his neck, a wool hat, and fingerless gloves. Normal protocol at OHFs is that the administrators from different companies leave each other alone, but I had to ask. He explained that he was sitting in the only remaining open space in the cage, and it happened to be right underneath an air-conditioning duct that was blasting ice cold air. The air was so cold that he simply had to have his ski parka to be able to work. I couldn t help but wonder what the people from OSHA2 would have said if they had seen these working conditions. Evan
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There was another serious concern that could not have been foreseen in the early, salad days of OHFs. The OHF is in every way a data center for its customers. If the OHF went out of business or closed a facility (which happened a lot near the end, sometimes without any notice), displaced customers were forced to quickly migrate their operations from the closing OHF to a new facility. In another context, a rapid, unforeseen data center migration is called a disaster and could easily result in extended downtime.
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