Page index:
Overview
Setup Physical Volumes
Setup Volume Groups
Setup Logical Volume Group
Extending Volume Group
Extending Logical Volume
Reducing Logical Volume
Page 6 of 7
Extending Logical Volume:
One problem solved by extending the volume group (smbserver), but i have another problem I have very less space on particular LV (data). So i want to increase the particular LV. we can achieve by the following steps of work.
Use the following command to extend LV (data) to 48GB from 45 GB. I am extending only 3 GB because i don’t have more space to extend. You can extend your LV according to your requirement.
[root@SRV01 ~]# lvextend -L 48G /dev/smbserver/data
Extending logical volume data to 48.00 GB
Logical volume data successfully resized
Scanning the LV’s.
[root@SRV01 ~]# lvscan
ACTIVE ‘/dev/smbserver/data’ [48.00 GB] inherit
ACTIVE ‘/dev/smbserver/backup’ [10.00 GB] inherit
ACTIVE ‘/dev/smbserver/videos’ [20.00 GB] inherit
The above will only extend LV; we have to manually resize the file system also.
[root@SRV01 ~]# e2fsck -f /dev/smbserver/data
e2fsck 1.39 (29-May-2006)
Pass 1: Checking inodes, blocks, and sizes
Pass 2: Checking directory structure
Pass 3: Checking directory connectivity
Pass 4: Checking reference counts
Pass 5: Checking group summary information
/dev/smbserver/data: 12/2621440 files (8.3% non-contiguous), 382574/5242880 blocks
Use the following command to resize the file system.
[root@SRV01 ~]# resize2fs /dev/smbserver/data
resize2fs 1.39 (29-May-2006)
Resizing the filesystem on /dev/smbserver/data to 12582912 (4k) blocks.
The filesystem on /dev/smbserver/data is now 12582912 blocks long.
Check it, use the following steps.
[root@SRV01 ~]# mount /dev/smbserver/data /smbserver/data/
[root@SRV01 ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/sda3 965M 467M 449M 51% /
/dev/sda8 5.5G 144M 5.1G 3% /tmp
/dev/sdb5 9.2G 276M 8.5G 4% /opt
/dev/sda7 4.8G 398M 4.1G 9% /home
/dev/sda6 6.2G 1.4G 4.5G 24% /var
/dev/sda5 9.5G 3.3G 5.7G 37% /usr
/dev/sda1 487M 30M 432M 7% /boot
tmpfs 217M 0 217M 0% /dev/shm
/dev/sdb6 11G 155M 9.9G 2% /vm
none 217M 104K 217M 1% /var/lib/xenstored
/dev/hdc 3.7G 3.7G 0 100% /media/CentOS_5.3_Final
/dev/mapper/smbserver-backup
9.9G 1.2G 8.3G 13% /smbserver/backup
/dev/mapper/smbserver-videos
20G 173M 19G 1% /smbserver/videos
/dev/mapper/smbserver-data
48G 1.2G 44G 3% /smbserver/data
Page 5: Extending Volume Group
Page 7: Reducing Logical Volume
