Monthly Archives: July 2017

Decrease Logical Volume size in CentOS 6

Scenario: Decrease Logical Volume /home to 1GB size in CentOS/RHEL 6
System: CentOS/RHEL 6

– Check the drive and LV Path:

[root@centos6 ~]# df -h
Filesystem                       Size  Used Avail Use% Mounted on
/dev/mapper/VolumeGroup-lv_root  9.9G  1.8G  7.6G  20% /
tmpfs                            931M     0  931M   0% /dev/shm
/dev/sda1                        485M   39M  421M   9% /boot
/dev/mapper/VolumeGroup-lv_home  2.5G   68M  2.3G   3% /home
/dev/mapper/VolumeGroup-lv_opt   2.5G   68M  2.3G   3% /opt
/dev/mapper/VolumeGroup-lv_var   9.9G  199M  9.2G   3% /var
[root@centos6 ~]# lvdisplay | grep Path
  LV Path                /dev/VolumeGroup/lv_root
  LV Path                /dev/VolumeGroup/lv_swap
  LV Path                /dev/VolumeGroup/lv_var
  LV Path                /dev/VolumeGroup/lv_opt
  LV Path                /dev/VolumeGroup/lv_home
[root@centos6 ~]# vgs
  VG          #PV #LV #SN Attr   VSize  VFree
  VolumeGroup   1   5   0 wz--n- 39.51g 10.51g
[root@centos6 ~]#

got the logical volume home path is /dev/VolumeGroup/lv_home with 2.5GB size.
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