I have two 3,5" HDDs connected as well as two SSDs (installed after the picture). They’re connected via a USB dongle (through the back, so all drives go via USB 3.)
The issue I’m facing is that I only get 10MB/s, even though I should be getting more, even through a USB 3 interface. I’m going to try the suggested SMB configuration from another user and report back shortly
Your setup should be similar to mine. If you get good speeds, I’d love to know. OpenMediaVault is wonderful too - it’s simple and gets the job done. But for my system there’s no RAID, although that doesn’t bother me because 1 HDD is primary, and 1 HDD is backup