February 2022
12
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.