Azure Sydney outage between February 17 and 29, 2016

…. From Microsoft:

The root cause of this issue was excessive load on one of our storage scale units in the region. Due to unprecedented demand in this region, this storage scale unit was operating under higher than expected load and capacity pressure. This caused intermittent high latencies for storage transactions on this scale unit, which may have resulted in failures for some customers. The Azure Storage team rebalanced workloads across the entire region, which mitigated some of the failures while the team deployed a new scale unit. This allowed us to direct new customers to the new unit and gave existing customers the option of creating new resource groups on the new unit to further mitigate impact. This incident has now been resolved, and the impacted storage scale unit has been restored to normal level of resource utilization, latencies, and availability. There is no action required on your part.

Ensuring our customers’ continued great experience is our utmost priority. We’re taking steps to improve the Azure platform to help ensure such incidents do not occur in the future. For more information about these steps and the associated RCA (Root Cause Analysis), please visit the App Service Issues in the Australia East Region webpage.

We would like to offer our sincere apologies for the impact and inconvenience this incident may have caused.

Azure

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