[SOLVED] Update library hangs unpredictably while scanning SMB share on a Fritzbox router

[Nutul]

thanks @TheOldPresbyope
let me get this straigth at least from a hardware standpoint
as I understand it, I need another Pi (any Pi? any minimum requirements?) with OMV, which will be connected via USB to a 3.5" drive in its own enclosure and via ethernet to the router. this setup will give me a nas accessible from the local network, hence from the Pi running moode
is this correct?

Yes.
The "via ethernet to my router" thing is redundant: you just need "that" Pi in your network. With NFS or SMB file sharing enabled.
In the "other" PIs just mount the shared folder from "that" Pi.

As minimum requirements a Pi3 would suffice, a Pi4 could be more performant. In the end, though, I think that even a Pi3 with 2GB ram (the more, the better, I am keen to assume) would do.