HP-UX UnMirror Case Physical Disk Device missing LVM Mirror

** Myself

1. Unmirror all LV  (with option –k)

      lvreduce –k –m 0 /dev/vg00/lvol1

      lvreduce –k –m 0 /dev/vg00/lvol2

                              :

2. Check all LV not show Stale

      lvdisplay –v /dev/vg00/lvol1 

3. Remove physical disk from VG (No specify Physical disk)

      vgreduce –f vg00 

4. Save and  Remove /etc/lvmtab

      mv /etc/lvmtab /etc/lvmtab.bak 

5. Scan VG for create new /etc/lvmtab

      vgscan –v 

6. Backup VG config

      vgcfgbackup –f /etc/lvmconf/vg00.conf vg00 

7. Check Boot Path

      lvlnboot –v

                  incase wrong use lvlnboot command

                  lvlnboot -r /dev/vg00/lvol3 /dev/vg00

                  lvlnboot -b /dev/vg00/lvol1 /dev/vg00

                  lvlnboot -s /dev/vg00/lvol2 /dev/vg00

                  lvlnboot -d /dev/vg00/lvol2 /dev/vg00 

8. Check VG

      vgdisplay –v vg00 

9. Test Reboot for normal operation

      shutdown –ry 0