3.2. Configuring an LVM Volume with an ext4 File System
3.2. Configuring an LVM Volume with an ext4 File System This use case requires that you create an LVM logical volume on storage that is shared between the nodes of the cluster. The following procedure creates an LVM logical volume and then creates an ext4 file system on that volume. In this example, the shared partition /dev/sdb1 is used to store the LVM physical volume from which the LVM logical volume will be created. Note LVM volumes and the corresponding partitions and devices used by cluster nodes must be connected to the cluster nodes only. Since the /dev/sdb1 partition is storage that is shared, you perform this procedure on one node only, Create an LVM physical volume on partition /dev/sdb1 . Create the volume group my_vg that consists of the physical volume /dev/sdb1 . Create a logical volume using the volume group my_vg . You can use the lvs command to display the logical volume. Create an ext4 file system on the logical volume my_lv .
pvcreate /dev/sdb1 Physical volume "/dev/sdb1" successfully created vgcreate my_vg /dev/sdb1 Volume group "my_vg" successfully created lvcreate -L450 -n my_lv my_vg Rounding up size to full physical extent 452.00 MiB Logical volume "my_lv" created lvs LV VG Attr LSize Pool Origin Data% Move Log Copy% Convert my_lv my_vg -wi-a---- 452.00m mkfs.ext4 /dev/my_vg/my_lv mke2fs 1.42.7 (21-Jan-2013) Filesystem label= OS type: Linux