Linode Guessing Linode's next server cpus ?

buik · Jun 3, 2023

eva2000 said: ↑

I'd imagine part of the delays would be supply chain issues? Especially, on AMD EPYC side.
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Most hardware is currently back in good supply. Anyway it will have a reason why Linode has not yet introduced new data centers. Leaving out Fremont, CA. After all, that's a replacement.

eva2000 · Jun 3, 2023

buik said: ↑

Most hardware is currently back in good supply. Anyway it will have a reason why Linode has not yet introduced new data centers. Leaving out Fremont, CA. After all, that's a replacement.
Click to expand...

Yeah could be. Though just came across this interesting article with regards to latest server CPU's power draw requirements Intel and AMD just created a headache for legacy datacenters

AMD's Epyc 4 Genoa server processors announced late last year, and Intel's long-awaited fourth-gen Xeon Scalable silicon released earlier this month, are the duo's most powerful and power-hungry chips to date, sucking down 400W and 350W respectively, at least at the upper end of the product stack.

The higher TDP arrives in lock step with higher core counts and clock speeds than previous CPU cores from either vendor. It's now possible to cram more than 192 x64 cores into your typical 2U dual socket system, something that just five years ago would have required at least three nodes.

However, as Uptime noted, many legacy datacenters were not designed to accommodate systems this power dense. A single dual-socket system from either vendor can easily exceed a kilowatt, and depending on the kinds of accelerators being deployed in these systems, boxen can consume well in excess of that figure.

The rapid trend towards hotter, more power dense systems upends decades-old assumptions about datacenter capacity planning, according to Uptime, which added: "This trend will soon reach a point when it starts to destabilize existing facility design assumptions."
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A typical rack remains under 10kW of design capacity, the analysts note. But with modern systems trending toward higher compute density and by extension power density, that's no longer adequate.

While Uptime notes that for new builds, datacenter operators can optimize for higher rack power densities, they still need to account for 10 to 15 years of headroom. As a result, datacenter operators must speculate as the long-term power and cooling demands which invites the risk of under or over building.

With that said, Uptime estimates that within a few years a quarter rack will reach 10kW of consumption. That works out to approximately 1kW per rack unit for a standard 42U rack.
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Powering these systems isn't the only challenge facing datacenter operators. All computers are essentially space heaters that convert electricity into computational work with the byproduct being thermal energy.

According to Uptime, high-performance computing applications offer a glimpse of the thermal challenges to come for more mainstream parts. One of the bigger challenges being substantially lower case temperatures compared to prior generations. These have fallen from 80C to 82C just a few years ago to as low as 55C for a growing number of models.

"This is a key problem: removing greater volumes of lower-temperature heat is thermodynamically challenging," the analysts wrote. "Many 'legacy' facilities are limited in their ability to supply the necessary airflow to cool high-density IT."

To mitigate this, the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) have issued revised operating recommendations [PDF] for datacenters including provisions for dedicated low-temperature areas.
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Interesting point that datacenter operators also need to plan for 10-15yrs of headroom for power and cooling expansion. Akamai also plans to move their own cloud computing requirements into these new datacenters + Linodes', so you'd be planning for alot.

Wonder if Akamai/Linode will deploy water cooling for their datacenters?

Looking forward to reading write up articles for Linode's newer datacenters and servers

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