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Microsoft: Overheating datacenter caused Outlook.com outage

MS_Outlook_com_lockup-webA firmware improve failure at considered one of Microsoft’s datacenters caused the power to overheat and shut down entry to Outlook.com and Hotmail for some customers earlier this week, Microsoft said in a blog post this morning explaining the reason for the issue.

The outage, which began on Tuesday afternoon and lasted till early Wednesday morning, got here at an inopportune second for Microsoft, as the corporate tries to attract new users to its Outlook.com service. The outage additionally affected a smaller quantity SkyDrive customers.

In fact, Microsoft is hardly the one on-line service supplier to ever suffer an outage.

Right here’s the foundation trigger evaluation from the Microsoft publish …

On the afternoon of the 12th, in a single bodily area of considered one of our datacenters, we carried out our common strategy of updating the firmware on a core a part of our bodily plant. That is an replace that had been completed efficiently beforehand, however failed on this particular occasion in an sudden manner. This failure resulted in a speedy and substantial temperature spike within the datacenter. This spike was vital sufficient earlier than it was mitigated that it caused our safeguards to come back in to position for numerous servers on this a part of the datacenter.

These safeguards prevented entry to mailboxes housed on these servers and likewise prevented another items of our infrastructure to robotically failover and permit continued entry. This space of the datacenter homes elements of the Hotmail.com, Outlook.com, and SkyDrive infrastructure, and so some folks making an attempt to entry these companies had been impacted.

BeforehandOutlook.com arrives: Microsoft gets aggressive in new bid to dethrone Gmail

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