Graham Fleming
2014-Feb-13 21:27 UTC
Can't mount volume after devices disconnected from an online RAID 10
Hey guys, I have a 6-drive RAID10 btrfs volume. 2 drives are internal, then I have 2 external 2-bay enclosures. One of the enclosures disconnected and went offline and I quickly unmounted the volume and then rebooted. With all drives connected, and visible in "btrfs fi show" I tried to mount the volumes but am getting errors in syslog: failed to read tree root on sdf (one of the drives in the enclosure that went offline) open_ctree failed I also get this output when attempting to mount degraded on the command line (stdout): wrong fs type, bad option, bad superblock on /dev/sdg, missing codepage or helper program, or other error /dev/sdg is the other drive in the enclosure that disconnected. I have most things backed up except for a bunch of movies and stuff. Not a huge deal but I'd like to see if any of the btrfs recovery tools can get me back to a working state. Much appreciated. Thanks, Graham-- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html