Help! Repairing a RAID 1 dynamic disk



I've got a production system here that I've inherited and need a
little advice - and my boss is riding my ass for an update asap.

Its a Dell Windows 2000 server with two SCSI hard drives running
off the m/b's on-board SCSI controller.
The controller is not a raid controller, just a U320 scsi.

The two drives are configured with dynamic disk and software RAID
1 mirroring.

There are two partitions on the hard drive system - C:OS and
D:data.

When I browse the hard drives using the MS disk management
utility, I see not one hard drive, but two.
And each hard drive shows the C and D partitions.

So here's the problem:

The disk 0's C:OS partition is no longer synced to the disk 1's
C:OS partition. The D:data mirrored partition shows as the RAID
mirroring as ok.

I have rebooted the box and used the on-board SCSI utility to
verify the disk that claims to have failed with a read/write test
that has found no defects. I'm thinking (guessing) there is no
real problem with this partition and that it just needs to be
re-synced.

So how do I do this, safely, without hosing the box?

----

Traditionally, I've use hardware SCSI RAID controllers to provide
the RAID safety. I've never worked with MS's dynamic disks and
their software RAID, so I'm really worried about trashing the OS.

My assumption is that I would try a re-sync on the C:OS partition
and see if the box can repair itself for now. If the re-sync come
back with the same error and we are again operating the OS on just
one hard drive, then I'd need to come up with a better solution,
soon.

In situations like this in the past, I'd hookup a spare drive and
snap a Ghost image of the server for safety.
I have access to and am pretty familiar with Ghost Corporate
edition 7.5, but I think it's not compatible with dynamic disks ??

---

Could anyone having experience with this situation / MS dynamic
disk RAID please offer some tips here?

I just need to know the sequence I should use to try to get the
software RAID to repair itself, for now.

Please repsond to this group - any tips or suggestions would be
really welcome!

Thanks Alan.


.



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