Microsoft Azure experienced a major incident on February 12, 2022, lasting 1h 52m. The incident has been resolved; the full update timeline is below.
Update timeline
- postmortem Feb 12, 2022, 06:30 AM UTC
Impact Statement: Between 04:38 UTC and 6:30 UTC on 12 Feb 2022, you were identified as a customer using Virtual Machines, Azure SQL and Storage in West US who may have experienced connection failures when trying to access some resources hosted in the region. Additional downstream services may have also been impacted. Preliminary Root Cause: We determined that a subset of storage resources experienced a drop in network connectivity. Mitigation: We restored the network connectivity to storage resources to mitigate the issue. Next steps: We will continue to investigate to establish the full root cause and prevent future occurrences.