Dell is one of the companies that helps power Microsoft's server farms, including the ones that power Microsoft's operating system in the cloud, Windows Azure.
Data centers have been a bright spot for Dell, which has struggled in recent years. On its own, Dell's data center business would be a top 5 server vendor, said Forrest Norrod, the Dell vice president who heads its data center effort. In its most recent earnings conference call, CEO Michael Dell called out Facebook, Microsoft, Amazon.com, Akamai, and Baidu as key customers in that arena.
Microsoft announced that its so-called Gen 4 data centers will consist of prefabricated buildings that can be up and running in three to six months.