Am Montag, 4. Juni 2012 schrieb Hugo Mills: > On Mon, Jun 04, 2012 at 12:24:05PM -0400, Maxim Mikheev wrote: > > I run through all potential tree roots. It gave me everytime > > messages like these: > > > > parent transid verify failed on 3405159735296 wanted 9096 found 5263 > > parent transid verify failed on 3405159735296 wanted 9096 found 5263 […] > > The largest recovered data is 12Kb. > > max@s0:~/btrfs-recovering./recovered$ ls -lahs 3728819929088 > > total 28K > > 4.0K drwxr-xr-x 3 root root 4.0K Jun 4 12:06 . […] > > What can I do next? > > I'm out of ideas. > > At this point, though, you're probably looking at somebody writing > custom code to scan the FS and attempt to find and retrieve anything > that's recoverable. > > You might try writing a tool to scan all the disks for useful > fragments of old trees, and see if you can find some of the tree roots > independently of the tree of tree roots (which clearly isn't > particularly functional right now). You might try simply scanning the > disks looking for your lost data, and try to reconstruct as much of it > as you can from that. You could try to find a company specialising in > data recovery and pay them to try to get your data back. Or you might > just have to accept that the data's gone and work on reconstructing > it.
Only thing that comes to my mind thats still tryable without involving a data recover firm or engage a developer for an improved recovery tool is: PhotoRec from testdisk package or some other data recovery tool that looks for headers for known fileformats like I think foremost. It has some drawbacks: - AFAIK it has no means to glue back together fragmented files, so these are likely gone or truncated - filenames are lost - directory structure is lost I think it has been said, but I think its important to repeat it: BTRFS - or any other filesystem - with RAID 0 without backup is not for important production data. Not ever. Maxim, I suggest if you learn anything out of this let it be at least this. When I think about your setup, Maxim, the sentence "I want to have my data destroyed" comes to my mind. I would try with photorec from testdisk first. Its quite easy to use. -- Martin 'Helios' Steigerwald - http://www.Lichtvoll.de GPG: 03B0 0D6C 0040 0710 4AFA B82F 991B EAAC A599 84C7 -- 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
