RAID rebuilds whenever I restart

I have two new LaCie 500GB disks connected directly to my iMacG5 via USB (no hub). I've set them up as a mirrored RAID pair using the Apple RAID built into Disk Utility. This seems to work fine, but for some reason one of the disks gets rebuilt every time I restart my computer (I'm not sure if it's always the same one -- I've just started keeping statistics). I've tried ejecting the RAID pair after the rebuild completes and before restarting, but this doesn't seem to help. Since rebuild takes about 30 hours, this doesn't seem like a great situation. Any suggestions? Have people had better luck with SoftRAID? Thanks,
Norm
iMac G5 Mac OS X (10.4.4)

Hello
I had the same problem with my LaCie 250's...I ended up getting SoftRAID and have had no problems since. I wonder how robust the built-in Apple RAID functionality actually is... The biggest single advantage of SoftRAID (aside from it's reliability) is the ability to rebuild the RAID set in the background, allowing you to continue working.
I also think the LaCie drives are a bit sensitive when powering off. I wrote a short AppleScript, which I can't now recall, because I saved it as run only ;-(
But it was something like "Tell Finder eject RAID. Tell Finder shutdown." I keep this in the dock, and click on it whenever I want to shutdown. You can see whether this will work for you by manually ejecting/unmounting your RAID set before you restart.
Hope this helps
Paul
PS. Eagerly awaiting Intel version of SoftRAID now my new iMac is on it's way...

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