[root@NEWLFS mnt]#vgchange -a n lvm_vg
0 logical volume(s) in volume group "lvm_vg" now active
[root@NEWLFS mnt]#
3. 创建逻辑卷：
使用lvcreate -L Size -n NAME VGNAME 创建逻辑卷：
[root@NEWLFS ~]#lvcreate -L 2G -n lv_home lvm_vg
Logical volume "lv_home" created
[root@NEWLFS ~]#
使用lvdisplay 查看LV周详信息：
[root@NEWLFS mnt]#lvdisplay
| 代码: |
| --- Logical volume ---
LV Name /dev/lvm_vg/lv_usr VG Name lvm_vg LV UUID zrpaw1-vMdI-KvT2-4XlA-2TxZ-4iV8-38fN88 LV Write Access read/write LV Status NOT available LV Size 2.93 GB Current LE 750 Segments 1 Allocation inherit Read ahead sectors 0 --- Logical volume --- LV Name /dev/lvm_vg/lv_home VG Name lvm_vg LV UUID spGvLc-8lOM-CgAi-8XvI-E5Jt-xCce-l4B54K LV Write Access read/write LV Status available # open 0 LV Size 2.00 GB Current LE 512 Segments 1 Allocation inherit Read ahead sectors 0 Block device 253:0 [root@NEWLFS mnt]# |
由于我之前已创建了一个lv_usr 所以这里显示两个LV
最后一步，创建文档系统。这里我使用ReiserFS 3.6.19 :
[root@NEWLFS mnt]#mkreiserfs /dev/lvm_vg/lv_home
| 代码: |
|
..........略 Continue (y/n):y Initializing journal - 0%....20%....40%....60%....80%....100% Syncing..ok Tell your friends to use a kernel based on 2.4.18 or later, and especially not a kernel based on 2.4.9, when you use reiserFS. Have fun. ReiserFS is successfully created on /dev/lvm_vg/lv_home. [root@NEWLFS mnt]# |
创建挂载点，挂载他：
[root@NEWLFS mnt]#mkdir lvm_usr lvm_home
[root@NEWLFS mnt]#mount -t reiserfs /dev/lvm_vg/lv_home lvm_home/
[root@NEWLFS mnt]#df
| 代码: |
| Filesystem Size Used Avail Use% Mounted on
/dev/md0 5.4G 2.8G 2.7G 51% / /dev/hda1 6.4G 4.0G 2.5G 62% /mnt/C /dev/hda6 25G 22G 3.6G 86% /mnt/E /dev/hda7 9.7G 3.7G 5.6G 40% /mnt/lfs /dev/hda8 99M 18M 76M 20% /boot /dev/hda10 6.7G 2.9G 3.4G 46% /mnt/mdk /dev/mapper/lvm_vg-lv_home 2.0G 33M 2.0G 2% /mnt/lvm_home [root@NEWLFS mnt]# |
OK,现在已成功的创建好了逻辑卷，并且使用了ReiserFS，能够投入使用啦。
下一部分说一下 如何管理LVM
Have Fun !
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