[LVM] 删除逻辑卷

1. 查看当前逻辑卷 mount 状态, 并备份数据
# df
# lvdisplay
  --- Logical volume ---
  LV Name                /dev/VolGroup00/LogVol00
  VG Name                VolGroup00
  ...
  LV Size                72.44 GB
  ...
 
  --- Logical volume ---
  LV Name                /dev/VolGroup00/LogVol01
  VG Name                VolGroup00
  ...
  LV Size                1.94 GB
  ...

2. 删除逻辑卷
# lvremove /dev/VolGroup00/LogVol01
Do you really want to remove active logical volume LogVol01? [y/n]: y
  Logical volume "LogVol01" successfully removed

# lvs
  LV       VG         Attr   LSize  Origin Snap%  Move Log Copy%  Convert
  LogVol00 VolGroup00 -wi-ao 72.44G                                     

3. 查看删除结果
# lvdisplay
  --- Logical volume ---
  LV Name                /dev/VolGroup00/LogVol00
  VG Name                VolGroup00
  ...
  LV Size                72.44 GB
  ...

# vgs
  VG         #PV #LV #SN Attr   VSize  VFree
  VolGroup00   1   1   0 wz--n- 74.38G 1.94G

# vgdisplay
  --- Volume group ---
  VG Name               VolGroup00
  ...
  VG Size               74.38 GB
  Alloc PE / Size       2318 / 72.44 GB
  Free  PE / Size       62 / 1.94 GB
  ...