A service interruption on Azure storage services late Tuesday was caused by Microsoft’s attempts to roll out a performance update that had been earlier tested for several weeks.
An issue was discovered as part of the update to Azure Storage that resulted in reduced capacity across services using Azure Storage, including Virtual Machines, Visual Studio Online, Websites, Search and other Microsoft services, wrote Jason Zander, corporate vice president of the Microsoft Azure team in a blog post Wednesday.
The interruption impacted storage services across the U.S., Europe and parts of Asia. A limited subset of customers were still affected by intermittent issues on Wednesday, according to the company. On the Azure status page, Microsoft was still reporting problems in the West Europe region on Wednesday evening.