On Wed, 9 Feb 2011 21:46:38 -0500, Ben Gamari <bgam...@gmail.com> wrote: > We have a disk array behind two external SATA port multipliers (four > disks on each multiplier) which has been running btrfs (RAID 1 for > both data and metadata). Unfortunately, earlier today it seems one of > the SATA cables came loose, resulting in the kernel (2.6.37) > eventually OOPSing although apparently not before writing quite a bit > of data. Upon reboot, I was met with the dreaded, > > disk-io.c:741: open_ctree_fd: Assertion `!(!tree_root->node)' failed. > > Unfortunately any attempt to run any of the btrfs-progs utilities > (from git) met a similar end. There was recently a patch to try harder > in recovering from this problem posted to the list, although > unfortunately it is unable to find a root. Considering there are eight > disks in the array and only four were affected by the loose cable, I > find it very hard to believe there is no way to recover this volume. > Any suggestions at all would be greatly appreciated. Recovering this > data would mean a lot. Thanks, > Given there has been no response to this, I suppose I should assume this data is unrecoverable? It's not the end of the world if so, but again, it would be nice to get a few files and it seems like a small subset of the metadata is corrupted.
Cheers, - Ben -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html