When using raidadd to concatinate 3 4gig drives, the
following errors occur on the console.

[root@quantum /sbin]# ./raidadd /dev/md0
md_add(): zero device size, huh, bailing out.
md_add(): zero device size, huh, bailing out.
md_add(): zero device size, huh, bailing out.

[root@quantum /sbin]#

I have 1 4gig partition on each drive, the kernel is set up
for raid devices as modules, and the raidtab is as follows.

[root@quantum /etc]# cat raidtab
raiddev /dev/md0
    raid-level                0
    nr-raid-disks             3
    nr-spare-disks            0

    device                    /dev/sda1
    raid-disk                 0
    device                    /dev/sdb1
    raid-disk                 1
    device                    /dev/sdc1
    raid-disk                 2
[root@quantum /etc]#

It is a must to be able to configure raid before we can
start testing Red Hat as a viable server in our enviroment.