ReadyNAS NV+ dead.

Hi all.

So I connected all four drives via SATA connections to a PC, and ran Ubuntu Live CD 14.0.4 - I can see the drives using fdisk -l and if I run disktypes I get the following output:

--- /dev/sda
Block device, size 465.8 GiB (500107862016 bytes)
DOS/MBR partition map
Partition 1: 1.953 GiB (2097152000 bytes, 4096000 sectors from 32)
 Type 0xFD (Linux raid autodetect)
 Ext3 file system
   UUID 19D7E96B-46C0-4FA8-9C91-55AD62CA982F (DCE, v4)
   Volume size 1.953 GiB (2097086464 bytes, 127996 blocks of 16 KiB)
 Linux RAID disk, version 0.90.3
   RAID1 set using 4 regular 0 spare disks
   RAID set UUID FB039844-8B4F-B3AD-A7FE-C49905FF7DC3 (DCE, v11)
Partition 2: 512 MiB (536870912 bytes, 1048576 sectors from 4096032)
 Type 0xFD (Linux raid autodetect)
 Linux RAID disk, version 0.90.3
   RAID5 set using 4 regular 0 spare disks
   RAID set UUID 748C5E1D-9F0A-26B1-3D4A-81EDFAC28E35 (NCS)
Partition 3: 463.3 GiB (497465450496 bytes, 971612208 sectors from
5144608)
 Type 0xFD (Linux raid autodetect)
 Linux RAID disk, version 0.90.3
   RAID5 set using 4 regular 0 spare disks
   RAID set UUID 0C819D9F-4A65-09C7-52C4-8E407439F4FD (NCS)

--- /dev/sdb
Block device, size 465.8 GiB (500107862016 bytes)
DOS/MBR partition map
Partition 1: 1.953 GiB (2097152000 bytes, 4096000 sectors from 32)
 Type 0xFD (Linux raid autodetect)
 Ext3 file system
   UUID 19D7E96B-46C0-4FA8-9C91-55AD62CA982F (DCE, v4)
   Volume size 1.953 GiB (2097086464 bytes, 127996 blocks of 16 KiB)
 Linux RAID disk, version 0.90.3
   RAID1 set using 4 regular 0 spare disks
   RAID set UUID FB039844-8B4F-B3AD-A7FE-C49905FF7DC3 (DCE, v11)
Partition 2: 512 MiB (536870912 bytes, 1048576 sectors from 4096032)
 Type 0xFD (Linux raid autodetect)
 Linux RAID disk, version 0.90.3
   RAID5 set using 4 regular 0 spare disks
   RAID set UUID 748C5E1D-9F0A-26B1-3D4A-81EDFAC28E35 (NCS)
 First 112 KiB are blank
Partition 3: 463.3 GiB (497465450496 bytes, 971612208 sectors from
5144608)
 Type 0xFD (Linux raid autodetect)
 Linux RAID disk, version 0.90.3
   RAID5 set using 4 regular 0 spare disks
   RAID set UUID 0C819D9F-4A65-09C7-52C4-8E407439F4FD (NCS)

--- /dev/sdc
Block device, size 465.8 GiB (500107862016 bytes)
DOS/MBR partition map
Partition 1: 1.953 GiB (2097152000 bytes, 4096000 sectors from 32)
 Type 0xFD (Linux raid autodetect)
 Ext3 file system
   UUID 19D7E96B-46C0-4FA8-9C91-55AD62CA982F (DCE, v4)
   Volume size 1.953 GiB (2097086464 bytes, 127996 blocks of 16 KiB)
 Linux RAID disk, version 0.90.3
   RAID1 set using 4 regular 0 spare disks
   RAID set UUID FB039844-8B4F-B3AD-A7FE-C49905FF7DC3 (DCE, v11)
Partition 2: 512 MiB (536870912 bytes, 1048576 sectors from 4096032)
 Type 0xFD (Linux raid autodetect)
 Linux RAID disk, version 0.90.3
   RAID5 set using 4 regular 0 spare disks
   RAID set UUID 748C5E1D-9F0A-26B1-3D4A-81EDFAC28E35 (NCS)
 First 112 KiB are blank
Partition 3: 463.3 GiB (497465450496 bytes, 971612208 sectors from
5144608)
 Type 0xFD (Linux raid autodetect)
 Linux RAID disk, version 0.90.3
   RAID5 set using 4 regular 0 spare disks
   RAID set UUID 0C819D9F-4A65-09C7-52C4-8E407439F4FD (NCS)

--- /dev/sdd
Block device, size 465.8 GiB (500107862016 bytes)
DOS/MBR partition map
Partition 1: 1.953 GiB (2097152000 bytes, 4096000 sectors from 32)
 Type 0xFD (Linux raid autodetect)
 Ext3 file system
   UUID 19D7E96B-46C0-4FA8-9C91-55AD62CA982F (DCE, v4)
   Volume size 1.953 GiB (2097086464 bytes, 127996 blocks of 16 KiB)
 Linux RAID disk, version 0.90.3
   RAID1 set using 4 regular 0 spare disks
   RAID set UUID FB039844-8B4F-B3AD-A7FE-C49905FF7DC3 (DCE, v11)
Partition 2: 512 MiB (536870912 bytes, 1048576 sectors from 4096032)
 Type 0xFD (Linux raid autodetect)
 Linux RAID disk, version 0.90.3
   RAID5 set using 4 regular 0 spare disks
   RAID set UUID 748C5E1D-9F0A-26B1-3D4A-81EDFAC28E35 (NCS)
Partition 3: 463.3 GiB (497465450496 bytes, 971612208 sectors from
5144608)
 Type 0xFD (Linux raid autodetect)
 Linux RAID disk, version 0.90.3
   RAID5 set using 4 regular 0 spare disks
   RAID set UUID 0C819D9F-4A65-09C7-52C4-8E407439F4FD (NCS)
 Linux LVM2 volume, version 001
   LABELONE label at sector 1
   PV UUID hN3fV6-VSQU-5vi3-gNCr-6ZkZ-OZoZ-EA6Z6y
   Volume size 1.357 TiB (1492395884544 bytes)
   Meta-data version 1

I've tried following the tutorial here: http://home.bott.ca/webserver/?p=306 but the vgscan step tells me that it found no volumes. I've also tried mounting the drives with no luck. Is anybody able to shed some light on how I get the data from these drives? Thanks.