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How do electrical load, server cooling affect server virtualization?

Learn why it's important to consider electrical load and server cooling requirements when embarking on a blade server virtualization project.

Q: What are the electrical load and cooling needs for blade servers?

Meet the expert
Martin MacLeod is an IT consultant based in London with several years' experience deploying and supporting blade servers in volume. He also blogs at bladewatch.com, where he tracks news on blade servers, grids and virtualization. Listen to the rest of Martin's answers on blade server virtualization by downloading our blade server virtualization podcast.

The energy considerations and the cooling considerations for blade servers are that you're going to have more condensed servers in a condensed area with blade server virtualization, so you have to be more careful to ensure that you've got adequate energy for each cabinet to host these blades, and more importantly, that you've got adequate cooling. You need to make sure the air is going straight through the blade and there are no pockets of air building up behind the blade or around the cabinet, which could cause you issues in terms of reliability. And you get the benefits of being a bit more flexible and portable with the infrastructure, so if blade 7 fails, the SAN, the ESX server and virtual machines running on it are just [cut over seamlessly] to blade number 8.

This was last published in February 2008

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