I am building a Linux system which has 4 identical 'fd' partitions on each of the 4 drives. I don't want to use the 4th partition or disk if you would like to call it as a 'hot spare'. I would like to span the entire array over the 4 drives. My question is does my command look correct for doing so? mdadm --create /dev/md0 --level=5 --raid-devices=4 /dev/sda2 /dev/sdb2 /dev/sdc2 /dev/sdd2 I shouldn't have to specify any additional flags in the 'mdadm' command to make sure it uses all 4 drives as the RAID5 array, right? -- To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html