I've spent several hours trying to get OMV running on my Pi 4 with more than one HDD and eventually found out that the Raspberry Pi 4 doesn't play well with some powered USB hubs.
Is anyone running OMV on a Pi 4 using a hub to connect multiple USB drives? If so, can you let me know the make/model of the hub please (I'm in the UK if that matters).
There is a list on wikipedia but its a bit vague in places, hence my request here.
https://elinux.org/RPi_Powered_USB_Hubs#Working_USB_Hubs
Many thanks
Michael