Before I proceed with setting up our next Linux box with dual SATA drives to use a RAID 1 software mirror, I have one additional question about future upgrades on such a box. If one uses the software RAID 1 mirror approach, how exactly should future upgrades be handled? Does the RedHat installer normally recognize the pre-existing RAID 1 and 'mirror the upgrade' as it is done. Or do you have to explicitly cause the mirror drive to be sync'ed with the newly upgraded system drive after rebooting? Jack