Summary of impact: Between 10:17 and 13:52 UTC on 30 Oct 2019, a subset of customers, and Azure services, in West Europe may have experienced difficulties connecting to resources hosted in this region stemming from an identified Storage issue.
Preliminary root cause: Engineers determined that some instances of a backend service responsible for controlling Storage requests became unhealthy.
Mitigation: Engineers performed a change to the impacting backend service configuration to mitigate the issue.
Identified: Engineers will continue to investigate to establish the full root cause and prevent future occurrences. Stay informed about Azure service issues by creating custom service health alerts: https://aka.ms/ash-videos for video tutorials and https://aka.ms/ash-alerts for how-to documentation.