Subj : Re: Seeking cable management ideas....
To   : Theo
From : bp@www.zefox.net
Date : Wed Jun 12 2024 15:54:50

Theo <theom+news@chiark.greenend.org.uk> wrote:
>
> We made a cluster of 50 Pi4s in a 4U server chassis.  To avoid a cabling
> nightmare much of the interconnect was via boards plugged into the GPIO.
> They provided power and USB-serial for the UART - it also allowed power
> switching the Pi for hard resets.  Power was daisy chained from a big
> PC PSU:
> https://github.com/Cambridge-AdvancedOS/cam-power-uart-hat
>
> At the back of the box was a big USB hub and an ethernet switch, from where
> everything fed into a master controller Pi.
>
> That was a custom build, but companies have similar solutions:
> https://www.8086.net/products
>
> Since the Pi only needs a 5V supply, putting in power via the GPIOs avoids
> needing USB-C PSUs.
>

All are elegant, but I'm trying hard to stick with commonplace off-the-shelf
components that are individually replaceable without disturbing anything else.

Thanks for writing!

bob prohaska

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