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Extracting data from ReadyNAS Duo 3TB disk?
Hi, I have a crashed ReadyNAS Duo chassis with two 3TB disks in it. Both disks seems to be working fine. How can I go about extracting the data from theses disks? they were in a RAID 1 config so I ...
How has your NAS crashed? Can you elaborate.
How to go about it depends on which model you have. Since you are using 3TB disks I assume below you have the v2 (but please confirm by reading this post: http://www.rnasguide.com/2012/01/09/how-to-tell-whether-i-have-a-duo-v1-or-duo-v2-or-nv-v1-or-nv-v2/ )
You would need just the one disk. You would need to have some familiarity with mdadm, lvm2 and ext4
Something like this:
# apt-get install mdadm lvm2 # mdadm --assemble --scan # vgscan # vgchange -a y c # mount -o ro /dev/c/c /mnt
You will need to use sudo to run commands as root.
Hi again,
thanks for your response. I did some digging around the verison of the RN and it turns out it is a ReadyNas 102. The modelname at the bottom of the chassis states RND-2D and also RN10200-100EUS.
The RN is owned by a friend of mine who I'm trying to help out.
It started to behave oddly and this resulted in my friend trying to upgrade to the latest OS. This is only a few weeks back. This is also when everything started to go seriously south. After a while there was no way to reach the RN and he finally gave up.
I suffered a similar issue this spring with my RN Duo v1, but was able to extract the data from my 1TB disks and offered to help my friend to do the same. It seems it is not so easy on the larger disks.
I have tried to enter the commands you provided, but I don't get any response back from the mdadm command line. As a result (I guess) the vgscan comes up empty.
I have tried mdadm with both the physical descriptor, /dev/sdb*, and the label of the partiotion(s). I have from gparted that the file system is linux-raid. The flag is also set to "raid".
Thanks
I am a happy man!! :-)
Following the USB recovery steps I managed to upgrade the OS and restart the unit. I can reac it and see the shares therought the web interface. Tomorrow the owner will have to login to the admin interface to verify settings etc.
Thanks for your input.
Regards
Christoffer
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