How can I add new device(disk or partition) into a raid0 array
 

Hi

I simulated a disk array -- RAID0 on my personal machine with Soft RAID setting.

Firstly, I create md0 as RAID0 including 2 partitions.

mdadm -C /dev/md0 -l 0 -n 2 /dev/sdb1 /dev/sdb2

After I checked the man page of mdadm, it said that the RAID0 dose not support the failure stat. That means I can't use the command "mdadm /dev/md0 -f /dev/sdb1". is it right?

Since that reason, how can I add another partition to this array? I tried the command "mdadm /dev/md0 -a /dev/sdb3", but it was failed with following output:

md0: personality does not support diskops!
mdadm: hot add failed for /dev/sdb3: Invalid argument

Do those error messages mean this soft RAID0 type does not support the hot adding method?

Thanks in advance for giving pieces of advice