Microsoft officials have said repeatedly that the company is working to increase cloud capacity to try to keep up with the demand for Azure and other Microsoft cloud services. They've prioritized the needs of first responders, healthcare workers, and others on the front line, as they've noted previously. And they've throttled some less-essential services to try to keep things humming. On April 23, officials shared a bit about some of the additional steps it is taking to try to meet demand.
In a new blog post about "Business continuity with Azure," the unnamed authors noted they've been making several improvements beyond just continuing to expand the company's worldwide datacenter footprint.
Microsoft officials have been designing and open sourcing their own datacenter infrastructure components for years. Microsoft's rule of thumb, according to the blog post:
"In general, in any particular Azure region we ensure a near-instant capacity buffer within the datacenters, and hold additional infrastructure buffer warehoused, ready to ship to regions with high demand."
Today's blog post notes that Microsoft put in place "temporary resource limits on new Azure subscriptions," as one way to manage capacity demand. The post also says existing customers didn't experience these restrictions because each Azure customer account "has a defined quota of services they can access."
As I've said previously, reports of existing Microsoft customers hitting Azure capacity limits in certain regions didn't just start when more people began working from home during the COVID-19 coronavirus pandemic. Last fall, a number of East US2 Azure customers were reporting they couldn't even spin up virtual machines because of Azure capacity issues. In March this year, many European customers also reported encountering a variety of Azure-related capacity issues. Some existing Azure customers reported hitting SQL Server on Azure capacity limits, too.
I've asked Microsoft if its claim about existing customers not hitting restrictions meant customers who had reserved instances. So far, no word back.
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Microsoft has taken additional steps to try to continue to meet cloud services -- and specifically, Teams -- demand, the blog post says. Among those steps:
Since last fall, and maybe before, Microsoft officials have stressed the company is always adding capacity. It's nice to get a little bit more color on what that means, especially just ahead of next week's FY20 Q3 earnings announcement.