I'm starting to lose it, I got my #raspberrypi with two USB connected SSDs, and doing a RAID with #btrfs (/dev/sda , /dev/sdb), when booting all is good, but after some time the devices decide to change to /dev/sdd and /dev/sdc ??
Which "breaks" the btrfs RAID, even tho I'm mounting it in the fstab with the UUID; and the NFS mount on my machine, might just scrap it and do good old partitions and rsync between the two.
@minkiu As an alternative you might want to consider using the disks without a raid, and run periodic backups from one disk to the other. That’s what I use in my setup.
@minkiu I'd be inclined to work out why the USB bus appears to be resetting. Most likely guess is a power dip. Suggest bigger/better power supply as dual drives may be pulling more power than can currently be supplied. It would be the USB reset, not the drive identifiers changing that is causing the filesystem to fail. (This sort of thing is normally logged in somewhere like dmesg)
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