Scott R. Ehrlich wrote: > What would be the recommended way to create a software RAID 10 array? > > Again, two disks for the OS as s/w RAID 1, the remaining four disks > for data as RAID 10, with possibly 1 of the 4 as a [hot] spare. well, if you only have 4 drives for that raid10, I dunno how have a hot spare. if you reserve one as a hotspare, then you only have 3 left, raid10's require an even number of drives. Forgetting the hotspare, ## partition sdc-sdf with one full disk primary partition each, parttition type FD (linux auto raid) mdadm --create /dev/md/myraid10 --level=raid10 --raid-devices=4 /dev/sdc1 /dev/sdd1 /dev/sde1 /dev/sdf1 mkfs /dev/md/myraid10 mount /dev/md/myraid10 /u01