How can I repair a RAID 0 on mac pro hard drives?

I recently RAID 0 my drives 2-4 in my mac pro. These were each 2TB Constellation Seagate drives. It worked fine for about 15 minutes and then as I was copying some files from this 6TB RAID -- it just disappeared.
It shows up in the disk utility but won't let me repair the RAID. When I do repair each of the drives -- slices, they show no problems. My OS is 10.6.8.
Thanks in advance for any thoughts.
bmwerman

how well did the act of loading data to the array go? how about building the array?
You're using RAID Utility or command raidutil
The problem likely - new and latest firmware? isn't the drives possibly (can't know for now) but with the controller and in this case I assume you are using Apple Pro RAID. How long have you had the controller? any history with it?

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