root@cnpradm01:~# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/xvda1 9.8G 2.1G 7.2G 22% /
tmpfs 1.8G 0 1.8G 0% /dev/shm
/dev/mapper/vg0-lvhome
2.0G 1.7G 278M 86% /home
/dev/mapper/vg0-lvvar
3.9G 537M 3.3G 14% /var
/dev/mapper/vg0-lvopt
9.8G 432M 9.2G 5% /opt
root@cnpradm01:~# vgs
VG #PV #LV #SN Attr VSize VFree
vg0 1 3 0 wz--n- 95.98g 79.98g
root@cnpradm01:~# pvs
PV VG Fmt Attr PSize PFree
/dev/xvdb2 vg0 lvm2 a-- 95.98g 79.98g
/dev/xvdf1 lvm2 --- 100.00g 100.00g
--添加10G到逻辑卷
root@cnpradm01:~# lvextend -L+10G /dev/mapper/vg0-lvhome
Size of logical volume vg0/lvhome changed from 2.00 GiB (128 extents) to 12.00GiB (768 extents).
Logical volume lvhome successfully resized
--resize使文件系统识别
root@cnpradm01:~# resize2fs /dev/mapper/vg0-lvhome
resize2fs 1.41.12 (17-May-2010)
Filesystem at /dev/mapper/vg0-lvhome is mounted on /home; on-line resizing required
old desc_blocks = 1, new_desc_blocks = 1
Performing an on-line resize of /dev/mapper/vg0-lvhome to 3145728 (4k) blocks.
The filesystem on /dev/mapper/vg0-lvhome is now 3145728 blocks long.
root@cnpradm01:~# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/xvda1 9.8G 2.1G 7.2G 22% /
tmpfs 1.8G 0 1.8G 0% /dev/shm
/dev/mapper/vg0-lvhome
12G 1.7G 11G 14% /home
/dev/mapper/vg0-lvvar
3.9G 537M 3.3G 14% /var
/dev/mapper/vg0-lvopt
9.8G 432M 9.2G 5% /opt
--------------------------------------------------------------------------------------------------
Add disk size (Another Example)
Disk Name Or Path: /var
Disk Size: 30G
Disk Used: 28G
Disk Available: 1.2G
root@euinpoc01:~# pvs (physical vol)
PV VG Fmt Attr PSize PFree
/dev/sda2 VolGroup lvm2 a-- 44.51g 0
/dev/sdb VolGroup lvm2 a-- 5.00g 4.00m
/dev/sdc VolGroup lvm2 a-- 100.00g 50.00g
root@euinpoc01:~# lvs (logical vol)
LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert
lv_root VolGroup -wi-ao---- 92.54g
lv_swap VolGroup -wi-ao---- 6.96g
root@euinpoc01:~# vgs (vol group)
VG #PV #LV #SN Attr VSize VFree
VolGroup 3 2 0 wz--n- 149.50g 50.00g
Resize a partition :
$ vgs
$ lvextend -L+10G /dev/mapper/vg0-lvvar
$ resize2fs /dev/mapper/vg0-lvvar
------------------------------------------------------------------------------
Create a partition for /tmp:
$ lvs
$ lvcreate -L 20G -n lvtmp vg0
$ mkfs.ext4 /dev/mapper/vg0-lvtmp -- formate disk
$ mkdir /test
Mount /test
$ vi /etc/fstab
$ cp /tmp/* /tmp2
$ umount /tmp2
$ mv /tmp /tmp666
$ mv/tmp2 /tmp
$ vi /etc/fstab
$ umout -a
lvcreate –L 10M –n test volGroup[VolGroupName]