for a solution if you cannot get to the datadirectory (/DataVolume).
A safer method would be to mount the partition read-only.
Use SSH to get into your device (or connect the disk directly to a Linux system)
Enter a command along the lines of :
“mount -t xfs -o ro,norecovery /dev/md127 /mnt/md127” (not including the quotes)
It is then possible to copy data to another partition (using rsync e.g.)
“cannot access drive” and "Warning: is_dir(): Stat failed for /DataVolume/_torrent_ (errno=5 - Input/output error) in /proto/SxM_webui/ctcs/ctcsconfig.inc on line 24 "
cannot find superblock