Updated "hardware" recommendations?

Just wondering if there is an updated doc similar to the very helpful 2.3 guide

It summarized memory, disk, and network configuration information and is probably still relevant but I can't find a modern version of the page.

It still gets referenced in posts like:

I guess it's spread now among pages like this:


Maybe the I/O Scheduler info wrt SSDs is not relevant with modern Linux?
Can't find the recommendation against cross-datacenter clusters.
Also don't find current recommendations like "prefer medium-to-large boxes" or around number of CPU cores.

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