wynne conor conor_wynnemaxtorcom dont see john id sure backup data first suppose could setup half raid1 copy partitions across vi lilo append new device labels devmd0 instead devhda rerun lilo raidhotadd devxxx devmd0 way around never tried could bollix setup rootraid systems install time drive failures production systems home successfully rebuilt raid many times imho linux software raid extremely good going pint cw ive running system want set disks mirrored ill win little read speed lot reliability however raid_howto mentions raid 1 raid 0 machine thats new dont mention anything existing setup possible setup disk mirroring running box kate irish linux users group iluglinuxie httpwwwlinuxiemailmanlistinfoilug unsubscription information list maintainer listmasterlinuxie wed 14 aug 2002 092227 0100 ilug mirroring running system