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Inside Azure innovations with Mark Russinovich | BRK226

Microsoft Developer (Build) · Jun 11, 2026 · Engineering Insights

Azure's Fairwater AI data centers co-design infrastructure and software to power AI at scale.

“There you can see there's enough cabling to wrap the earth four times in one of these.”

Azure CTO Mark Russinovich gave an under-the-hood look at Azure's infrastructure innovations, centered on the Fairwater AI data centers in Wisconsin and Atlanta. He emphasized the co-design of AI data centers, core infrastructure, and the software running on top, highlighting scale details like liquid cooling and massive InfiniBand/Ethernet network cabling. It matters because it signals how Microsoft is purpose-building physical infrastructure specifically to power large-scale AI workloads.

azure ai-infrastructure data-centers fairwater liquid-cooling

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