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Dell CERC SATA 1.5/6ch automatic rebuild

I'm working with a client who has a Dell Poweredge 1800 with 2 250GB WD SATA drives in RAID 1 on a CERC SATA 1.5/6ch controller.  They called the other day claiming that the server was beeping, even after a reboot (though it did reboot successfully).  By the time I was able to get on-site, the beeping had stopped, but Dell OpenManage reported that the array was rebuilding - and from the percentage complete it did look like it was rebuilding the entire array.

My question is if anyone else has had a similar issue?  Both drives are being reported as OK and online, but nobody would have forced the array to rebuild itself.  What could have caused the controller to automatically rebuild the array onto the same disks, and should I be worried that one or both of the disks is on the verge of failure?
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bryanchandler
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bryanchandler
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WalkaboutTiggerCommented:
Are they certain it was the server and not the UPS, presuming the server is connected to a UPS?

I would be inclined to check if there were any SMART errors on either of the drives - OpenManage should be able to tell you this information.
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bryanchandlerAuthor Commented:
OpenManage doesn't report SMART errors on either drive (at least not that I can tell, all I see is a "failure predicted" column, they both read "No").

To clarify about the beeping - the beeping stopped when they shut down the server and resumed when it was powered back on.
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WalkaboutTiggerCommented:
Considering the model, this server should still be in warranty.  I would call Dell to see if there is a known CERC firmware or drive firmware issue which might cause this issue.
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bryanchandlerAuthor Commented:
The server is no longer under warranty, but I will check with Dell to see if there are any known issues with this controller or firmware version.
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WalkaboutTiggerCommented:
Prior to updating any low level components, insure you have a known-good backup of the server.

http://support.dell.com/support/downloads/driverslist.aspx?c=us&cs=04&l=en&s=bsd&ServiceTag=&SystemID=PWE_1800&os=WNET&osl=en&catid=&impid=

Adaptec firmware updated 7/17/2007
Adaptec Drive updated 11/21/2007
Adaptec Utility updated 2/13/2008

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bryanchandlerAuthor Commented:
This seems to be a one-off issue and I'm really thinking it's the drives, I really just wanted to rule out the controller as the source of the issue.  I will have to see if the customer wants to perform the firmware upgrade as well.
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