How do I find the volume group name in Linux?
There are two commands you can use to display properties of LVM volume groups: vgs and vgdisplay . The vgscan command, which scans all the disks for volume groups and rebuilds the LVM cache file, also displays the volume groups. For information on the vgscan command, see Section 5.3.
What is volume group name?
A Volume Group (VG) is a collection of one or more physical devices, each called a Physical Volume (PV). A Logical Volume (LV) is a virtual block device that can be used by the system or applications.
How do I extend a volume group in Linux?
How to Extend Volume Group and Reduce Logical Volume
- To Create new partition Press n.
- Choose primary partition use p.
- Choose which number of partition to be selected to create the primary partition.
- Press 1 if any other disk available.
- Change the type using t.
- Type 8e to change the partition type to Linux LVM.
How do I create a new volume group in Linux?
- Create a LVM VG, if you do not have an existing one: Log into the RHEL KVM hypervisor host as root. Add a new LVM partition using the fdisk command. …
- Create a LVM LV on the VG. For example, to create an LV called kvmVM under the /dev/VolGroup00 VG, run: …
- Repeat the above VG and LV steps on each hypervisor host.
What is a volume in Linux?
In computer data storage, a volume or logical drive is a single accessible storage area with a single file system, typically (though not necessarily) resident on a single partition of a hard disk.
How do I create a new volume group?
To create a volume group from one or more physical volumes, use the vgcreate command. The vgcreate command creates a new volume group by name and adds at least one physical volume to it. The following command creates a volume group named vg1 that contains physical volumes /dev/sdd1 and /dev/sde1.
How do you remove a physical volume from a volume group?
To remove unused physical volumes from a volume group, use the vgreduce command. The vgreduce command shrinks a volume group’s capacity by removing one or more empty physical volumes. This frees those physical volumes to be used in different volume groups or to be removed from the system.
Which command is used to physical volume?
Displaying Physical Volumes. There are three commands you can use to display properties of LVM physical volumes: pvs , pvdisplay , and pvscan . The pvs command provides physical volume information in a configurable form, displaying one line per physical volume.
How do I remove logical volume?
To remove an inactive logical volume, use the lvremove command. If the logical volume is currently mounted, unmount the volume before removing it. In addition, in a clustered environment you must deactivate a logical volume before it can be removed.