I added a new drive to my one drive in an nt 4 server. So now I have two drives on a single ide cable master and slave. I can see both drives in disk administrator and have set the partitions to be the same and hold the control key down to select the partitions then select mirror and the option is still grayed out. Is this a feature that is still on the cdrom? the partitions are the same and they are both ntfs. any ideas??