read raw = yes
write raw = yes
Nothing helps. Write speed to USB3 1Tb ext4 hdd 2-10MB/s. Read - 85-115 MB/s
Raspberry Pi 4 8 Gb raspiOS 64 bit. dd command shows write speed 78+ Mb/s
Will look in future for better software. As I saw in this topic OMV is bugged soft and people can't find reasons why.