How do I create a new volume group in Linux?

Procedure

1. 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.
2. Create a LVM LV on the VG. For example, to create an LV called kvmVM under the /dev/VolGroup00 VG, run:
3. Repeat the above VG and LV steps on each hypervisor host.

How do you create a logical volume from a volume group?

1. Select the Physical Storage Devices for LVM – Use pvcreate, pvscan, pvdisplay Commands.
2. Create the Volume Group – Use vgcreate, vgdisplay Commands.
3. LVM Create: Create Logical Volumes – Use lvcreate, lvdisplay command.
4. LVM resize: Change the size of the logical volumes – Use lvextend Command.

How many volume groups can be created in Linux?

1 Answer. Sets the maximum number of logical volumes allowed in this volume group. The setting can be changed with vgchange(8). For volume groups with metadata in lvm1 format, the limit and default value is 255.

How do I create a new logical volume?

In order to create LVM logical volumes, here is a basic four step procedure:

1. Create partitions to be used and initialize them as physical volumes.
2. Create a volume group.
3. Create a logical volume.
4. Create a file system on a logical volume.

How to create a volume group in Linux?

Now that we have decided on a name, let’s use a single command to add both physical volumes to the new volume group. This command needs to be run as root or with sudo. You can see in the output that the volume group was successfully created. Now we can use the pvs command to see the change to our storage architecture.

How to add logical volumes to volume groups?

Create two volume groups, and create logical volumes on both of them with the same name. Add another physical volume to your volume group, then create a logical volume that occupies the whole volume group. Now try to remove one of the physical volumes. Try to create a logical volume that has the exact size of the volume group.

How to verify volume group created in LVM?

To verify the newly created physical volumes use the command pvdisplay. Create a new volume group called vg1 using two physical volumes /dev/sdb1 and /dev/sdb2 using the command vgcreate. To verify the volume group has been created or not use the command vgdisplay.

How to create a volume group using vgcreate?

Create the Volume Group – Use vgcreate, vgdisplay Commands Volume groups are nothing but a pool of storage that consists of one or more physical volumes. Once you create the physical volume, you can create the volume group (VG) from these physical volumes (PV).