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danielv123 t1_jc78np9 wrote

Rack power density has been balooning the last few years. Typical power consumption was ~5kw per 42u rack for like a decade. Now we are nearing 20kw average. Compute oriented systems for AI workloads and whatnot pack 60kw+ per rack. A lot of older datacenters have to run half full racks because their central cooling system can't deal with the heat of full ones anymore.

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hung_like__podrick t1_jc7fdhb wrote

We’re going to be reaching the limit of what traditional cooling methods like CRAC units are capable of with those densities. I hope to see more liquid cooling applications or other solutions like rear doors that aren’t as prevalent as traditional CRACs.

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RuKiddin06 t1_jc8nwa3 wrote

I used to for for a company that uses self enclosed cabinets to avoid the use of floor AC units and isolate intense workloads. Scalematrix / DDC. Super interesting compared to raised floor. From what I can tell it's still kinda expensive, but the idea is promising.

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hung_like__podrick t1_jc8p3q6 wrote

Oh nice. I’m familiar with Scalematrix. Raised floors aren’t as prevalent as they used to be and honestly it’s for the better.

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RuKiddin06 t1_jc8pgi4 wrote

Oh cool! Yeah, having now worked in a switch facility for another company, as well as raised floor sites, concrete slab, and cooling similar to these is the way forward.

Liquid door also comes to mind.

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