Amazon Web Services (May)
The cloud leader experienced connectivity problems May 31 because of a hardware failure in a data center inside its North Virginia region.
Affected customers were down about 30 minutes, and there were reports that not all data could be restored because of total hardware failures.
The outage "was a result of a power event impacting a small percentage of the physical servers in that data center as well as some of the networking devices,’ AWS said in a post-mortem.
AWS' core EC2 service, as well as its Relational Database Service, Workspaces virtual desktop service, and Redshift data warehousing service were all impacted.