Lacie NAS enclosure failure: data recovery

[jazzjulien]

Hi,

I just had my Lacie 2big network NAS that was setup in RAID enclosure die...
Now I bought a new one (synology 211j) but I have to recover the data on the Lacie drives.

1st: I would like to mirror the data such that I can attempt the recovery safely:
- how would you do that knowing that I'm not even sure how to format the new disk...

2nd: did anyone try to do the recovery with ubuntu?
http://mtaulty.com/CommunityServer/blog ... evice.aspx


any help would be nice as these drives hold all my pictures (yes I know I should have made another backup before...)
Thanks
Julien

[networks]

What raid level is it ?

[dmarques]

Hi,

A way to try it a DIY solution safely is to bit image your drives, and then you can try to make whatever attempts you want on the images.

If you are not sucesseful, you can then take the original drives into a data recovery company for a dianosis.

[jazzjulien]

Hi,

sorry but this is the first time for me.
How should I do a bit image if I don't know how to format the new drive (ntfs, ext...)

Thanks
Julien

[jazzjulien]

ok, so I'm now cloning the drives by doing:
sudo dd if=/dev/sde of=/dev/sdd bs=32256 conv=noerror

Do you know apx how long that takes because it doesn't give any message and I'm worried I'm waiting for nothing (disk to be cloned is 500gb).
Should I see a message?

[networks]

If your data is important you need to reconsider DIY since you have no idea how to do the basics raid recovery is not simple use google or the search on this forum spend some time educating yourself on the process many posts here on this very subject. It's time consuming not 3 clicks an your data is recovered ! put some effort into it

[jazzjulien]

It's RAID1.
I know it's not 3 clicks (I've been reading about it for the last 3 weeks) but only today I got all the cables/enclosures/drives to start an attempt to recover the data.
The best info I found was on
https://www.rh-webs.net/2009/08/19/the-great-lacie-1tb-big-disk-recovery-experiment/

Everything seems to be ok until in GParted he says:
"select your way through the available partitions looking for 1 large (400+ GB) unallocated space. Ensure that you write down which partition this. In my case, this was /dev/sda. The other partition from your LaCie Big Disk will be grouped with several others and will be in the ball park of 464.80 GB in size"
Now when I look at GParted, I don't see any difference between the 2 drives from the enclosure.

any luck someone understands what he wanted to say with that?

Thanks

[networks]

Raid1 is mirror no recovery necessary each disk is a copy of the other run testdisk on one of the drives and see if it finds the partitions.by the way thanks for the update on what you have done thus far so we don't waste time telling you to try the same things again it's best to get that info in the first post !

[jazzjulien]

Thanks... It's running since 3 hours now so I'll let it finish anyway.
Do you mean that I don't need to use mdadm to recover the data.

Should I just mount it?
I don't know if that helps but here's the result of "sudo fdisk -l /dev/sde"

Disk /dev/sde: 500.1 GB, 500107862016 bytes
255 heads, 63 sectors/track, 60801 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disk identifier: 0x00000000

Device Boot Start End Blocks Id System
/dev/sde1 1 125 1004031 5 Extended
/dev/sde2 126 60801 487379970 83 Linux
/dev/sde5 1 16 128457 82 Linux swap / Solaris
/dev/sde6 17 17 8001 83 Linux
/dev/sde7 18 18 8001 83 Linux
/dev/sde8 19 40 176683+ 83 Linux
/dev/sde9 41 124 674698+ 83 Linux
/dev/sde10 125 125 8001 83 Linux

[networks]

Post #3 suggests you make an image copy of the drive and try recovery off the image so if/when you make the wrong decision and ruin chances of recovery you havent damaged the only good copy you have. That said I havent dealt with lacie raid not sure if its software raid or hardware but if software then yes you need mdadm since it controls the linux softraid to be able to mount the volumes. The article you are referring to may or may not be 100% applicable to your failure as we dont have any background from you except "it die" not much to go on !!

[jazzjulien]

The problem I have is that the enclosure doesn't turn on anymore. I bought another power adapter but it didn't make a difference.
Both drives seem to be healthy.

My copy just finished. USB2.0 is slow when you work with 500gb.

I now tried:
ubuntu@ubuntu:~$ sudo mkdir /mnt/xfs
ubuntu@ubuntu:~$ sudo mount -t xfs -r /dev/sde2 /mnt/xfs
mount: /dev/sde2 already mounted or /mnt/xfs busy

ubuntu@ubuntu:~$ sudo mdadm --assemble --run /dev/md0 /dev/sde2
mdadm: cannot open device /dev/sde2: Device or resource busy
mdadm: /dev/sde2 has no superblock - assembly aborted

ubuntu@ubuntu:~$ sudo mdadm --stop /dev/md0
mdadm: error opening /dev/md0: No such file or directory

Some additional help would be nice

[networks]

Your copy went to /sdd ? Take a look at this post. http://forum.r-tt.com/recovering-lvm-ov ... t4574.html

[einstein9]

Hi,

I just had my Lacie 2big network NAS that was setup in RAID enclosure die...
Now I bought a new one (synology 211j) but I have to recover the data on the Lacie drives.

1st: I would like to mirror the data such that I can attempt the recovery safely:
- how would you do that knowing that I'm not even sure how to format the new disk...

2nd: did anyone try to do the recovery with ubuntu?
http://mtaulty.com/CommunityServer/blog ... evice.aspx


any help would be nice as these drives hold all my pictures (yes I know I should have made another backup before...)
Thanks
Julien

If your drives are OK, then i suggest you read here

http://lacie.nas-central.org/wiki/Main_Page

best resource for NAS

good luck

[jazzjulien]

thanks everyone.
So I'm now able to read the data
What I did is quite simple:
ls -la /dev/md*
->for all md devices:
sudo mdadm --stop /dev/md0
sudo mdadm --stop /dev/md1
sudo mdadm --stop /dev/md2
sudo mdadm --stop /dev/md3
sudo mdadm --stop /dev/md4

sudo mkdir /mnt/xfs
sudo mount -t xfs -r /dev/sdb2 /mnt/xfs

Now I'd like to copy everything to my new NAS but I need to mount it.
It's a synology and I'm using ubuntu from a USB stick (so I don't want startup mounting but rather just in command line in the terminal)

Can someone help me to find the command?

Thanks
Julien

[jazzjulien]

I was able to connect through FTP
I'm so happy I got my 65,000 photos back