I have a strange one sometime ago I bought two SSD's and put them into PNY drive cases. I had an unexpected powerloss whilst not around. On reboot of openmediavault one of my drives had disappeared. I did SSH and did lsblk and a couple of others but it would not detect it. I restarted openmedia vault using the gui. Logged back in and drive was still missing. So I used ssh again and sent reboot command. This seemed to work and display the drive however it had moved from SDA to SDC. SDB turned into SDA.
Is this a common problem ?
Raspberry pi4b 8GB