  Part # JW063 is for a SAS 6/iR   This product ID indicates you have part # SW063. I suspect there is a typo because this part number does not exist in my records. It appears you have JW063 which is a SAS 6/iR. The instructions for replacing a drive in a RAID 1 for a SAS 6/iR start at the bottom of page 46 in the user's guide: [URL] All you need to do is replace the disk. If it does not start rebuilding automatically then set the replacement HDD as a hot spare. Thanks
I pulled one of the 1TB drives from one of the other Dell servers and am concerned about harming the raid configuration or breaking the pairing.  Where can I go to see exactly what I need to do and exactly what I don't to sync the new drive.  I'm running Windows Server 2003 R2 on this old server.  Also, while these drives are identical size, one says KA02 on it and the says MA08, whatever that means.
T300 with SAS 6 host bus adapter configured for Raid-1, one of the 1TB HDDs 
died.