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How to extend or grow lvm partition in linux with lvextend command

https://www.linuxtechi.com/extend-lvm-partitions/

1.Tambah storage vm

2.resize storage dengan Gparted

3.Mounting storage ke direktori root

Resizing the file system size is an important task of Linux admin’s profile. In Linux , LVM(Logical Volume Manager) provides the facility to increase and reduce the file system size. In this tutorial we will discuss the practical examples of lvextend.

Scenario : Suppose we have a LVM partition(/home) and running out of space, we can increase the size of the file system if volume group has free space. Use the below steps :

Step:1 Type ‘ df -h’ command to list the file system

[root@cloud home]# df -h /home/
 Filesystem            Size  Used Avail Use% Mounted on
 /dev/mapper/vg_cloud-LogVol00
                       9.7G  9.2G     0 100% /home

Step:2 Now check the free available space in the Volume group

# vgdisplay < Volume-Group-Name>

[root@cloud home]# vgdisplay vg_cloud
   --- Volume group ---
 VG Name                      vg_cloud
 System ID
 Format                       lvm2
 Metadata Areas               1
 Metadata Sequence No         4
 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                      27.01 GiB
 PE Size                      4.00 MiB
 Total PE                     6915
 Alloc PE / Size              5256 / 20.53 GiB
 Free  PE / Size              1659 / 6.48 GiB
 VG UUID                      1R89GB-mIP2-7Hgu-zEVR-5H02-7GdB-Ufj7R4

Step:3 Use lvextend command to increase the size.

[root@cloud ~]# lvextend -L +2G /dev/mapper/vg_cloud-LogVol00
     Extending logical volume LogVol00 to 11.77 GiB
     Logical volume LogVol00 successfully resized

Above command will extend the file system size by 2GB. You can also specify the size in MB , just replace G with M.

Step:3 Run the resize2fs command

resize2fs utk partisi ext4

xfs_growfs  utk partisi xfs

[root@cloud ~]# resize2fs /dev/mapper/vg_cloud-LogVol00

Step:4 Use df command and verify /home size .

[root@cloud ~]# df -h /home/
 Filesystem            Size  Used Avail Use% Mounted on
 /dev/mapper/vg_cloud-LogVol00
                        12G  9.2G  1.9G  84% /home

Read Also : How to setup thin Provisioned Logical Volumes in CentOS 7 / RHEL 7

 ------------------------------------------------------------------------------------------------
 [root@localhost ~]# vgdisplay
  --- Volume group ---
  VG Name               rhel
  System ID           
  Format                lvm2
  Metadata Areas        1
  Metadata Sequence No  4
  VG Access             read/write
  VG Status             resizable
  MAX LV                0
  Cur LV                2
  Open LV               2
  Max PV                0
  Cur PV                1
  Act PV                1
  VG Size               <99,00 GiB
  PE Size               4,00 MiB
  Total PE              25343
  Alloc PE / Size       4863 / <19,00 GiB
  Free  PE / Size       20480 / 80,00 GiB
  VG UUID               hFvtdw-JKCX-0eQc-qBsc-eD53-UGWK-Vc9Qzv
 
[root@localhost ~]# df -h
Filesystem             Size  Used Avail Use% Mounted on
/dev/mapper/rhel-root   17G   16G  1,4G  92% /
devtmpfs               1,9G     0  1,9G   0% /dev
tmpfs                  1,9G  4,0K  1,9G   1% /dev/shm
tmpfs                  1,9G  9,8M  1,9G   1% /run
tmpfs                  1,9G     0  1,9G   0% /sys/fs/cgroup
/dev/sda1             1014M  170M  845M  17% /boot
tmpfs                  380M  4,0K  380M   1% /run/user/42
tmpfs                  380M   36K  379M   1% /run/user/0
[root@localhost ~]# lvextend -L +80G /dev/mapper/rhel-root
  Size of logical volume rhel/root changed from <17,00 GiB (4351 extents) to <97,00 GiB (24831 extents).
  Logical volume rhel/root successfully resized.
[root@localhost ~]# xfs_growfs /dev/mapper/rhel-root
meta-data=/dev/mapper/rhel-root  isize=512    agcount=4, agsize=1113856 blks
         =                       sectsz=512   attr=2, projid32bit=1
         =                       crc=1        finobt=0 spinodes=0
data     =                       bsize=4096   blocks=4455424, imaxpct=25
         =                       sunit=0      swidth=0 blks
naming   =version 2              bsize=4096   ascii-ci=0 ftype=1
log      =internal               bsize=4096   blocks=2560, version=2
         =                       sectsz=512   sunit=0 blks, lazy-count=1
realtime =none                   extsz=4096   blocks=0, rtextents=0
data blocks changed from 4455424 to 25426944
[root@localhost ~]# df -h
Filesystem             Size  Used Avail Use% Mounted on
/dev/mapper/rhel-root   97G   16G   82G  17% /
devtmpfs               1,9G     0  1,9G   0% /dev
tmpfs                  1,9G  4,0K  1,9G   1% /dev/shm
tmpfs                  1,9G  9,8M  1,9G   1% /run
tmpfs                  1,9G     0  1,9G   0% /sys/fs/cgroup
/dev/sda1             1014M  170M  845M  17% /boot
tmpfs                  380M  4,0K  380M   1% /run/user/42
tmpfs                  380M   40K  379M   1% /run/user/0
[root@localhost ~]#