No Volume Exists, need to bring volume back!

Hi All,

We have a ReadyNAS Pro Business Edition [X-RAID2] running firmware RAIDiator 4.2.22

A drive died in our system and the person who replaced the drive replaced the wrong one. After replacing the wrong one they quickly realized, took out that disk and put it in the correct spot. They did this without letting the drive properly sync before removing. Now ALL our data seems to be lost. When looking at the FrontView GUI it says "No Volume Exists". Can anyone help us recover our data and re-create this volume group? Please??

Output lvscan:

No volume groups found

Output vgscan:

  Reading all physical volumes.  This may take a while...
  No volume groups found

Output fdisk -l

Found valid GPT with protective MBR; using GPT

Disk /dev/sda: 976773168 sectors,  465G
Logical sector size: 512
Disk identifier (GUID): c47c8e9c-6e8b-4351-8965-e7ba5777fddf
Partition table holds up to 8 entries
First usable sector is 4, last usable sector is 976773164

Number  Start (sector)    End (sector)  Size       Code  Name
   1               4         8388611       4096M   0700  Linux RAID
   2         8388612         9437187        512M   0700  Linux RAID
   5         9437189       976768064        461G   0700  Linux RAID
Found valid GPT with protective MBR; using GPT

Disk /dev/sdb: 976773168 sectors,  465G
Logical sector size: 512
Disk identifier (GUID): d25225fd-18d9-4a02-962b-e0f687898f93
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 976773134

Number  Start (sector)    End (sector)  Size       Code  Name
   1              64         8388671       4096M   0700
   2         8388672         9437247        512M   0700
   5         9437256       976768131        461G   0700
Found valid GPT with protective MBR; using GPT

Disk /dev/sdc: 976773168 sectors,  465G
Logical sector size: 512
Disk identifier (GUID): 7f3265c6-d23f-4867-bfa2-9be425e25185
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 976773134

Number  Start (sector)    End (sector)  Size       Code  Name
   1              64         8388671       4096M   0700
   2         8388672         9437247        512M   0700
   5         9437256       976768131        461G   0700
Found valid GPT with protective MBR; using GPT

Disk /dev/sdd: 1953525168 sectors,  931G
Logical sector size: 512
Disk identifier (GUID): 8602aecc-33a7-4719-acff-4aa522dfa41c
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 1953525134

Number  Start (sector)    End (sector)  Size       Code  Name
   1              64         8388671       4096M   0700
   2         8388672         9437247        512M   0700
   5         9437256       976768131        461G   0700
   6       976768136      1953521038        465G   0700
Found valid GPT with protective MBR; using GPT

Disk /dev/sde: 1953525168 sectors,  931G
Logical sector size: 512
Disk identifier (GUID): e1178127-329f-4f5f-a230-e3c4bd1dd6d7
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 1953525134

Number  Start (sector)    End (sector)  Size       Code  Name
   1              64         8388671       4096M   0700
   2         8388672         9437247        512M   0700
   5         9437256       976768131        461G   0700
   6       976768136      1953521038        465G   0700
Found valid GPT with protective MBR; using GPT

Disk /dev/sdf: 1953525168 sectors,  931G
Logical sector size: 512
Disk identifier (GUID): 88ea026c-96ea-426e-a5eb-743ef66b7ddc
Partition table holds up to 128 entries
First usable sector is 34, last usable sector is 1953525134

Number  Start (sector)    End (sector)  Size       Code  Name
   1              64         8388671       4096M   0700
   2         8388672         9437247        512M   0700
   5         9437256       976768131        461G   0700
   6       976768136      1953521038        465G   0700

Disk /dev/md0: 4294 MB, 4294955008 bytes
2 heads, 4 sectors/track, 1048573 cylinders
Units = cylinders of 8 * 512 = 4096 bytes

Disk /dev/md0 doesn't contain a valid partition table

Output: cat /proc/mdstat

Personalities : [raid0] [raid1] [raid10] [raid6] [raid5] [raid4]
md3 : active raid5 sdf6[0] sdd6[2]
      488374784 blocks super 1.2 level 5, 512k chunk, algorithm 2 [2/2] [UU]

md2 : active raid5 sdf5[0] sda5[5] sdb5[3] sdc5[2] sdd5[1]
      1934655488 blocks super 1.2 level 5, 512k chunk, algorithm 2 [5/5] [UUUUU]

md1 : active raid6 sda2[0] sdb2[6] sdf2[4] sde2[8] sdd2[2] sdc2[7]
      2096896 blocks super 1.2 level 6, 64k chunk, algorithm 2 [6/6] [UUUUUU]

md0 : active raid1 sdf1[7] sda1[6] sde1[9] sdd1[8] sdc1[11] sdb1[10]
      4194292 blocks super 1.2 [6/6] [UUUUUU]

unused devices: