I have a failed disk (146 GB Dual Port 15K SAS Spare: 488058-001) in a mirrored setup on our main Domain Controller (we have another one), an HP ProLiant DL385 G6 and I have a spare identical disk available. The failed disk is showing a solid Amber light which means I should be able to hot swap it with the spare. I will of course do a full backup of the server first and move all the FSMO roles to the backup DC. However, my issue is that the HP Array Configuration Utility will not launch on the one with the failed drive. I was not the one who built the system originally, but when I took a closer look at it I noticed that the version of the software is Version 18.104.22.168 which is not compatible with the o/s on it since that is 2008 R2. The other identical domain controller that I built has a newer version that supports 2008 R2 and it works fine. My dilemma is if I uninstall and update the HP Array Configuration Utility then restarts will be required and I would rather not do that until the failed disk is replaced. Should I try to replace the disk before I update the software?