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The 10 Biggest Cloud Outages Of 2019 (So Far)

Here are the 10 cloud outages so far this year that have generated the most public backlash and, accordingly, did the most to deteriorate trust in the cloud services model for IT.

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Microsoft Azure: May 2  

Several core Microsoft cloud services, including compute, storage, an application development platform, Active Directory and SQL database services, were impacted by a nearly three-hour DNS outage on May 2.

Some of Microsoft's cloud-based applications, including Microsoft 365, Dynamics and Azure DevOps, were also impacted.

According to Microsoft's Azure status page, the underlying root cause was a nameserver change that affected DNS resolution, harming the downstream services.

"During the migration of a legacy DNS system to Azure DNS, some domains for Microsoft services were incorrectly updated. No customer DNS records were impacted during this incident, and the availability of Azure DNS remained at 100% throughout the incident. The problem impacted only records for Microsoft services," the page said.

 
 
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