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Microsoft Pri0

Welcome to Microsoft Pri0: That's Microspeak for top priority, and that's the news and observations you'll find here from Seattle Times technology reporter Matt Day.

March 14, 2013 at 1:24 PM

Data center temperature spike caused Outlook and Hotmail outage, Microsoft says

Microsoft said a temperature spike in one of its data centers was the cause of  an outage earlier this week that affected some people’s ability to access Hotmail.com, Outlook.com and SkyDrive.

The outage, which ran from mid-day Tuesday until early Wednesday, occurred after Microsoft started one of its regular firmware updates, wrote Arthur de Haan, a Microsoft vice president, wrote in the official Outlook blog.

According to de Haan:

On the afternoon of the 12th, in one physical region of one of our datacenters, we performed our regular process of updating the firmware on a core part of our physical plant. This is an update that had been done successfully previously, but failed in this specific instance in an unexpected way. This failure resulted in a rapid and substantial temperature spike in the datacenter. This spike was significant enough before it was mitigated that it caused our safeguards to come in to place for a large number of servers in this part of the datacenter.

These safeguards prevented access to mailboxes housed on these servers and also prevented any other pieces of our infrastructure to automatically failover and allow continued access. This area of the datacenter houses parts of the Hotmail.com, Outlook.com, and SkyDrive infrastructure, and so some people trying to access those services were impacted.

 

Comments | More in Microsoft | Topics: hotmail, outage, outlook

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