Craig Sisler, CIO of Capital Printing Systems in New York’s East Side, had a plan to deal with the blackout. The power went down completely, lights went out, workstations went dark, he says. He covered servers with duct tape and plastic in case the sprinklers went on. The postmortem of the blackout taught him that had it happened in the middle of the night, things wouldn’t have gone as smoothly. Communication was the biggest problem, Sister says.”]
Source: https://www.csoonline.com/article/2116611/planning-for-power-blackouts–lights-out.html