Hi,
after 3 days of struggle and research, I figured out at what point OMV crashes. Every time I move a file to or from the server, Wait - IO increases to 100% and then blocks everything, and the disk is unmounted, I have to restart everything because I can't mount that disk again (sometimes I don't even see it connected).
I use a WD Purple 4TB disk, a Qoltec 50316 HDD docking station connected to USB 3.0
Disk and Docking are 7 days old (new).
I'm using a mini PC specs:
CPU: Intel Celeron N3350, 2C/2T, 1.10GHz, 2MB cache, 6W TDP, Codename "Apollo Lake" (Goldmont, Intel 14nm)
RAM: 4GB DDR3
SSD: 64GB Flash (eMMC), M.2 SATA (2242) (slot is empty right now)
HDD: not available
Graphics: Intel HD Graphics 500 (iGPU), 12EU/96SP, 0.20-0.65GHz, Architecture "Gen 9" (Apollo Lake GT1)
Connectors: 1x Micro HDMI, 1x USB-C 3.0 with DisplayPort 1.2, 2x USB-A 3.0, 1x jack
Wireless: Wi-Fi 5 (WLAN 802.11a/b/g/n/ac), Bluetooth 4.2
Unfortunately, there is no Ethernet RJ45 port. I have a gigabit Ethernet - USB 3.0 adapter --> Chipset: RTL8153 (Tplink UE300 adapter)
I've gone through everything, I don't know where the problem is anymore.