On Thursday July 18th, Learn365 availability was impacted by a Microsoft Azure outage. The outage was exclusive to the Central US region. When we initially updated our Zensai Status Page, we reported the outage impacted the North Europe region as well. However, this was a clerical error on our part. We apologize for any confusion this may have caused.
For specifics on the technical background of the outage's root cause, please refer to the direct quotes from the Microsoft team below.
”We have determined that a backend cluster management workflow deployed a configuration change causing backend access to be blocked between a subset of Azure Storage clusters and compute resources in the Central US region. This resulted in the compute resources automatically restarting when connectivity was lost to virtual disks. We have confirmed mitigation for Azure Storage and Compute resources. We are continuing to investigate and mitigate a number of downstream impacted services that have not returned to a fully healthy state."
”Services which were impacted by this outage recovered progressively and engineers from the respective teams intervened where further manual recovery was needed. Following an extended monitoring period, we determined that impacted services had returned to their expected availability levels. "