重命名卷组

可以看到卷组的现有名称是 VolGroup。
让我们尝试重命名它。

# vgdisplay
  --- Volume group --
  VG Name               VolGroup
   System ID
   Format                lvm2
   Metadata Areas        1
   Metadata Sequence No  7
   VG Access             read/write
   VG Status             resizable
   MAX LV                0
   Cur LV                3
   Open LV               3
   Max PV                0
   Cur PV                1
   Act PV                1
   VG Size               14.80 GiB
   PE Size               4.00 MiB
   Total PE              3789
   Alloc PE/Size       3295/12.87 GiB
   Free  PE/Size       494/1.93 GiB
   VG UUID               ambYT7-Bukv-6FdP-AEMJ-noFk-INmV-7wX3PI

语法：

# vgrename old_vol_group_name new_vol_group_name 

# vgrename VolGroup NewGroup
  Volume group "VolGroup" successfully renamed to "NewGroup"

检查更改

[root@test2 ~]# vgdisplay
  --- Volume group --
  VG Name               NewGroup
   System ID
   Format                lvm2
   Metadata Areas        1
   Metadata Sequence No  8
   VG Access             read/write
   VG Status             resizable
   MAX LV                0
   Cur LV                3
   Open LV               3
   Max PV                0
   Cur PV                1
   Act PV                1
   VG Size               14.80 GiB
   PE Size               4.00 MiB
   Total PE              3789
   Alloc PE/Size       3295/12.87 GiB
   Free  PE/Size       494/1.93 GiB
   VG UUID               ambYT7-Bukv-6FdP-AEMJ-noFk-INmV-7wX3PI

重命名逻辑卷

注意：要重命名逻辑卷，您必须卸载分区。

语法

# lvrename Volu_Group_Name  Old_log_vol_name new_log_vol_name 

# lvrename VolGroup work office
  Renamed "work" to "office" in volume group "VolGroup" 

逻辑卷已经重命名。

如果之前逻辑卷是挂载的，则必须重新挂载以使更改生效。

[root@test2 ~]# mount /dev/VolGroup/office /work/

检查：

[root@test2 ~]# df -h
 Filesystem                   Size  Used Avail Use% Mounted on
 /dev/mapper/VolGroup-root     11G  3.3G  7.0G  33% /
 tmpfs                        495M   72K  495M   1% /dev/shm
 /dev/sda1                    194M   30M  155M  16% /boot
 /dev/mapper/VolGroup-office 1008M   34M  924M   4% /work