Yesterday I got an e-mail from my Rockstor server that one of my drives had failed. The drive showed inside the Rockstor UI as inactive/dead. I pulled the drive from the system and used SeaTools diagnostics, there seemed to be no problems with it whatsoever. After putting the drive back in the server it showed up in the Rockstor UI again just fine, as though nothing had happened. I rebooted the system and everything seemed OK, no errors and all drives present. However the btrfs volume was mounted as read only.
Trying to remount them as read/write gives an error “Remounting read-write after error is not allowed”. I have no clue how to continue from here. All drives are present and have the same /dev/sd* number as they had before the drive failure. Rebooting the system doesn’t work, nor does trying to mount it with -o rw,recovery. It will only mount in read-only state.
Edit 11/11/206: Still no fix for this. Adding some more information which might help to find a solution.
Rockstor version: 3.8.15-0
Kernel: 4.6.0-1.el7.elrepo.x86_64
Motherboard: ASRock Rack C2750D4I
Drives: 10xST4000DM00, 2x MD04ACA400 & 1x 250GB Samsung SSD