HP-UX LVM listing

- Monitor LVM with the following commands:
  bdf : Similar to a Solaris style "df -k" output.
  pvdisplay :Display PV Information
  vgdisplay :Display VG Information
  lvdisplay  :Display LV Information
 
 - Remove LVM Objects with the commands:
  pvremove: Removes a PV Device (ie: /dev/dsk/c0t1..)
  vgreduce : Remove a PV from a VG Binding
    use as: vgreduce /dev/vg01 /dev/dsk/c0t1d0
  vgremove : Removes a VG, only done when there
    is only ONE disk left in the VG.
  lvremove Removes a LV.

   To remove a complete volume you must unmount the fs, then
   remove the LV, then reduce the VG to all but one disk.  Then
   remove the VG.  Then you only need to remove each PV untill
   you have normal disks again, not under LVM control.
  
- Here's a list of commands:

 ----VG-----
 vgcfgbackup   
 vgchange      
 vgcreate      
 vgexport      
 vgimport      
 vgremove
 vgcfgrestore  
 vgchgid       
 vgdisplay     
 vgextend      
 vgreduce      
 vgscan

 ---LV----
 lvchange    
 lvdisplay   
 lvlnboot    
 lvreduce    
 lvrmboot
 lvcreate    
 lvextend    
 lvmmigrate  
 lvremove

 ---PV----
 pvchange   
 pvck       
 pvcreate   
 pvdisplay  
 pvmove     
 pvremove

 - There are 3 LVM Objects:

  ----------------------------
  |  Logical Volume     |
  ----------------------------
    \/ \/ \/ \/ 
  ----------------------------
  |  Volume Group     |
  ----------------------------
    \/  \/ \/ \/
  ----------------------------
  |  Physical Volume     |
  ----------------------------

  or: Disks are used to create PV's,
    which we group into VG's, from
    which we create LV's which 
    contains the filesystem we use.

..:-)