AWS CloudFront

Starting May 7 4:20 PM PDT, we experienced increased impaired EC2 instances and degraded EBS volumes in a single facility (data center) within a single Availability Zone (use1-az4) in the US-EAST-1 Region. The issue was caused by a thermal event resulting in a loss of power. As part of our recovery effort, we shifted traffic away from the impacted Availability Zone for most services at May 7 5:...

We have begun to see improvements in the overall number of affected EC2 instances and degraded EBS volumes in a single Availability Zone (use1-az4) in the US-EAST-1 Region. The steps taken to supply additional cooling capacity have been showing steady signs of progress. Some EBS Volumes and EC2 instances affected by the issue will continue to experience impairments while we continue to drive th...