I have a dell power edge per 6i with 6 sata drives each pair are mirrored at controller level resulting in 3 drives showing up in windows. this server is in production and get beat on pretty hard each day. I worry about the sata disks so I purchased 6 SAS disk of same size. Since I cant simply hot swap my way through replacing the old disks as the controller wont allow sas and sata on the same VD. I am thinking I may try to add three sas and set them up as new drives. then clone the sata to the sas and add the additional sas drives in place of the remaining sata disks with the hopes of then mirroring the cloned sas disks to the new empty sas disks. does this sound like a bad idea? does anyone have any other suggestions?