Thanks a lot. i have setup raid0 and raid1 in the same disk and i also create a RAID1 array with two different partition sizes, the resultin array is the size of the smaller partition.(it don't care the order. ) but how to use raidhotremove combination or the new mdadm? i try it: #raidstop /dev/md3 #raidhotremove /dev/md3 No target disk specified! is there any doc about how to remove raid? and what is the new mdadm? thank very much! Regards, Echo - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html