Hi,all. I hava two hard disk.I create two physical-volume,and on the two physical-volume created a volume-group. I run the following shell: for(( i = 0; i < 400; i++));do lvcreate -L 1G volume-group done But it whill missing pv with 'UUID' ,occasionally! Who can help me?Thanks!! -- Amos.Huang <ch.linux.free at gmail.com>