Lacie Thunderbolt RAID failed to Mount but can be accessed by Disk Utility

Hi,

I was doing some work today and my external RAID reached the FULL POINT. After that it no longer showed up on my desktop and in the Finder it's name was GREY and I could not access it via the finder.

I rebooted and it was still not present. The Lacie RAID monitor Ap still shows that both drives are green.

From the disk utility I could see the drive and view it with the finder. I can access the files, write to it, etc, but cannot get it to show up in the finder list nor on the desktop. I ran disk repair and disk verify and did not get any errors.

If I go to the Terminal and run diskutil list it shows on the list but only see this information:

diskutil list

/dev/disk0

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *251.0 GB disk0

1: EFI 209.7 MB disk0s1

2: Apple_HFS Macintosh HD 250.1 GB disk0s2

3: Apple_Boot Recovery HD 650.0 MB disk0s3

/dev/disk1

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *2.0 TB disk1

1: EFI 209.7 MB disk1s1

2: Apple_HFS Macintosh HD 2 2.0 TB disk1s2

/dev/disk3

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *3.0 TB disk3

1: EFI 209.7 MB disk3s1

2: Apple_RAID 3.0 TB disk3s2

3: Apple_Boot Boot OS X 134.2 MB disk3s3

/dev/disk4

#: TYPE NAME SIZE IDENTIFIER

0: GUID_partition_scheme *3.0 TB disk4

1: EFI 209.7 MB disk4s1

2: Apple_RAID 3.0 TB disk4s2

3: Apple_Boot Boot OS X 134.2 MB disk4s3

/dev/disk5

#: TYPE NAME SIZE IDENTIFIER

0: Apple_HFS LaCie Mirror Raid *3.0 TB disk5

It's very strange. It shows as listed in /dev/disk4 and /dev/disk5. I have not done this list before so I don't know what should be listed when it was normal.

Any help would be greatly appreciated,

Mike

OS X Version 10.8.2

IMAC 27 i7 etc.

No other apps running in the background

Thunderbolt adapter is working fine as I can access, mount, read/write to another thunderbolt drive.

I have had the LACIE RAID for about a year, it has been fine, no strange noises,