1sockchuck writes "During SuperStorm Sandy, few data centers faced a bigger challenge than the Datagram facility in lower Manhattan. The storm surge from Sandy flooded its basement, disabling critical pumps. 'It was apocalyptic,' said CEO Alex Reppen. 'It was like a tidal wave over lower Manhattan.' While companies like CoreSite dealt primarily with the loss of ConEd power, the Datagram team sought to recover operations in an active flood zone. Why was mission-critical equipment in the basement? Because city officials restrict placing fuel tanks on rooftops and upper floors, citing concerns about diesel emerging from the 9-11 attacks."