Lost all data using AUFS

Hi gang, I tried adding a third 500 gig hard drive to my openmediavault server which already had 2 500 gigs hard drive which I was using AUFS to attach the 2 drives to make it 1 TB. But when I just added the other hard drive, all my data from the other 2 drives disappeared but the data is still there since both drive report of one being used at 99% and the other being used at 61%.

The funny thing is I just added the drive to my server, didn't add it to the AUFS pool and all the data disappeared.

Is there a way to recover the data?

Also, why did this happen?

Any help would be great.

I'll send that to you tonight.

I tried to remounted both drive, I redid the pool, to no success. I just couldn't see the data.

I was able to copy stuff back to the drives which it displayed it was there, but it also showed that the drives still had my data from previous since it showed that my Disk1 was at 99% full.

After I send you the stab info, I'll just rebuild my server to include all 3 drives. Should I still use AUFS to spread my data across all 3 drives?

Thanks again ryecoaaron.

Finally had some time to look into why my data disappeared.

Here is the result from cat /etc/fstab:

# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> <mount point>   <type>  <options>       <dump>  <pass>
proc            /proc           proc    defaults        0       0
# / was on /dev/sda1 during installation
UUID=d2ce9bec-5ca2-4e13-a212-1f3b3c31badb /               ext4    errors=remount-ro 0       1
# swap was on /dev/sda5 during installation
UUID=5c377745-eac8-4145-9995-b9a12c72848e none            swap    sw              0       0
/dev/scd0       /media/cdrom0   udf,iso9660 user,noauto     0       0
# >>> [openmediavault]
UUID=ebf6b8df-f9ed-426e-97f2-6e4ac9dac838 /media/ebf6b8df-f9ed-426e-97f2-6e4ac9dac838 ext4 defaults,nofail,acl,user_xattr,noexec,usrjquota=aquota.user,grpjquota=aquota.group,jqfmt=vfsv0 0 2
UUID=656ef461-2d54-4243-9978-58ec2491e261 /media/656ef461-2d54-4243-9978-58ec2491e261 ext3 defaults,nofail,acl,user_xattr,noexec,usrjquota=aquota.user,grpjquota=aquota.group,jqfmt=vfsv0 0 2
UUID=2fa3bb51-297d-40e8-a6b7-b5ec7739e6f7 /media/2fa3bb51-297d-40e8-a6b7-b5ec7739e6f7 ext4 defaults,nofail,acl,user_xattr,noexec,usrjquota=aquota.user,grpjquota=aquota.group,jqfmt=vfsv0 0 2
UUID=c81a9ea4-74b7-4ce4-9a35-3deccec5fe6c /media/c81a9ea4-74b7-4ce4-9a35-3deccec5fe6c ext4 defaults,nofail,acl,user_xattr,noexec,usrjquota=aquota.user,grpjquota=aquota.group,jqfmt=vfsv0 0 2
/media/ebf6b8df-f9ed-426e-97f2-6e4ac9dac838/Disk1 /export/Disk1 none bind 0 0
/media/c81a9ea4-74b7-4ce4-9a35-3deccec5fe6c/Disk2/ /export/Disk2 none bind 0 0
# <<< [openmediavault]
# >>> [omvaufs]
# <<< [omvaufs]

Result from mount:

/dev/sda1 on / type ext4 (rw,errors=remount-ro)
tmpfs on /lib/init/rw type tmpfs (rw,nosuid,mode=0755)
proc on /proc type proc (rw,noexec,nosuid,nodev)
sysfs on /sys type sysfs (rw,noexec,nosuid,nodev)
udev on /dev type tmpfs (rw,mode=0755)
tmpfs on /dev/shm type tmpfs (rw,nosuid,nodev)
devpts on /dev/pts type devpts (rw,noexec,nosuid,gid=5,mode=620)
rpc_pipefs on /var/lib/nfs/rpc_pipefs type rpc_pipefs (rw)

Let me know if mor einfo is required.

Thanks.

Hi ryecoaaron, I tried to reapply the AUFS pool and it just didn't want to work.

So I went ahead and redid the whole server. What a difference it made, it took me less then 2 hours to get the server back to how it was setup. Now the copying of the data from my USB backup to my 2 drive is another topic of discussion since I created an rsync job which grabs the files off my USB backup and copies them in the aufs pool folders.

I will see tonight how fast it did it.

Would you have another suggestion on how I could do this, copy my files from my USB backup drive to the server?
And, when all my files are back on the server, how should I go about creating daily backup to my USB drive for videos, photos and documents? What tool should I use? rsync, snapraid, rsnapshot???

Thanks again for your help.

Hi ryecoaaron, the USB drive is plugged in directly in the server. So rsync jobs is what I will use then.

Thanks again.