A major Google Cloud outage was caused by uninterruptible power supplies being...interrupted

A major power outage hit Google Cloud's Columbus, Ohio zone on March 29, 2025, lasting over 6 hours. The failure of an uninterruptible power supply system caused over 20 cloud services and some storage disks to go down. Google engineers restored power using generators and brought most services back online quickly, though some required manual fixes. The company plans to improve its systems and work with vendors to prevent similar incidents in the future.