Posted By Rich Miller On November 13, 2007 @ 11:15 am In Downtime | Comments Disabled
In the second incident at approximately 6:30 PM CST Monday, a vehicle struck and brought down the transformer feeding power to the DFW data center. It immediately disrupted power to the entire data center and our emergency generators kicked in and operated as intended. When we transferred power to our secondary utility power system, the data center’s chilling units were cycled back up. At this time, however, the utility provider shut down power in order to allow emergency rescue teams safe access to the accident victim. This repeated cycling of the chillers resulted in increasing temperatures within the data center. As a precautionary measure we decided to take some customers’ servers offline. These servers are now back up, as are the chillers.While the first outage was linked to an equipment failure, it appears the second was a result of the temporary loss of cooling as the chillers restarted. It highlights the challenges posed by the increasing heat and power loads in modern data centers, which have dramatically shortened the time window in which cooling must be restored before servers overheat.
Article printed from Data Center Knowledge: http://www.datacenterknowledge.com
URL to article: http://www.datacenterknowledge.com/archives/2007/11/13/additional-details-on-rackspace-outages/
URLs in this post:
 additional details: http://www.rackspace.com/information/announcements/datacenter.php
 second outage: http://laughingsquid.wordpress.com/2007/11/12/massive-power-outage-at-rackspace-dallas-data-center/
 outage Monday night: http://www.datacenterknowledge.com/archives/2007/Nov/13/truck_crash_knocks_rackspace_offline.html
 O’Reilly Radar: http://radar.oreilly.com/archives/2007/11/failure_happens_2.html
 Rich Miller: http://www.datacenterknowledge.com/archives/author/richm/
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