ReadyNAS NV+ v2 issue after lightning strike

Okay.. So what has happend.. I just installed Unbuntu and realised that it was a very long time ago i was looking at Linux. (pulling my hair)
Also, today my replacement NAS from the insurancecompany came, a Netgear ReadyNAS RN10400.
So now, before i get even more grey hairs, i just have to pop the question. Can I take my disks from the old NV+ v2 and put them in my new RN10400 and get the data?
I almost sure i have read somewhere that this is not possible, just dont want to scan all posts in this forum again.
If not..
I have Unbuntu installed alongside Win 7 (nice solution, didnt know that was possible)
Connected the first HD via USB cabel/adapter.
Can see that it is connected via "Disk Utility"
Then i tried to change one of the disks, to see what info would appear, but Disk Utility doesnt update, and old HDD info is still there ( will soon try a reboot)
I tried some of the commands that you provided with the sudo prefix
sudo vgscan
"Found volume group "d" using metadata type lvm2
sudo vgchange -ay
"device-mapper: resume ioctl failed : invalid argument"
"unable do resume d-d (252:0)"
sudo mount -o /dev/c/c /mnt
"cant find /mnt in /etc/fstab or /etc/mtab"

The thing is i have no clue what i'm writing or what results i'm getting. So does anyone have a good, easy guide on how to do this, as i guess others must have been in this position. I find threads out there, but they are based on RAIDed solutions and other linux platforms, i dont have that, just installed the disks and used them as units..

My main question is still, if my new NAS can read the disks, if not, if you can redirect to a good guide on how to recover the HDDs on linux as i understand it takes a while to explain. Because I'm scared shitless to do anything to the disks that i dont know anything of.. Thanks again..

EDIT: Should might add that i bought a (one) new HDD and installed in the new NAS and this is up and running.