Miscellaneous

How can I increase PV size?

Contents

How can I increase PV size?

Extend LVM manually

  1. Extend the physical drive partition: sudo fdisk /dev/vda – Enter the fdisk tool to modify /dev/vda.
  2. Modify (extend) the LVM: Tell LVM the physical partition size has changed: sudo pvresize /dev/vda1.
  3. Resize the file system: sudo resize2fs /dev/COMPbase-vg/root.

What is PV LVM?

Physical volumes ( PV ) are the base “block” that you need in order to manipulate a disk using Logical Volume Manager ( LVM ).

Can we extend LVM?

There are no free space available in Physical Volume and Volume group. So, now we can’t extend the lvm size, for extending we need to add one physical volume (PV), and then we have to extend the volume group by extending the vg. For adding a new PV we have to use fdisk to create the LVM partition.

How do I add PV to LVM?

Adding PV to VG Set the partition type to Linux LVM, 0x8e, using fdisk. Set partition type as 8e which for Linux LVM. Finally save and exit fdisk with the write/quit command (w). Note: Changes will be permanent after this command is executed.

How do I shrink a PV LVM?

How to shrink Ubuntu LVM logical and physical volumes?

  1. Boot from the live gparted iso.
  2. Select the Ubuntu partition.
  3. “Deactivate” the partition.
  4. Resize the partition.
  5. “Activate” the partition.
  6. Apply.
  7. Profit???

Does Pvcreate destroy data?

“pvcreate -f” will NOT delete the data. It will only remove the headers on the disk.

How do you create a PV?

Create a Persistent Volume

  1. Create a file called nfs-share. yaml , similar to the example below.
  2. Apply the file to create an NFS Persistent Volume (PV). kubectl apply -f nfs-share.yaml.
  3. Validate the PV is available. kubectl get pv nfs-share.

How do you add volume to a group?

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 to extend the volume group in LVM?

for extending what we have to do is, we need to add one physical volume (PV) and then we have to extend the volume group (VG) by extending the VG then we will get enough space to increase the logical volume size, so first will add one physical volume For adding the PV we need to create one LVM partition with “ fdisk” command

How can I increase the size of my LVM partition?

Alternatively if you have multiple LVM partitions, you could shrink a different logical volume first to create space within the volume group. Now that we have confirmed there is space free within the volume group, confirm the name of the logical volume you want to increase as well as how much space you plan on adding.

How many physical extend ( PE ) are there in LVM?

Currently there are 4226 Physical Extend (PE) available. Now we are going to expand the / partition LogVol01. After expanding we can list out the size as above for confirmation.

Can a file system be mounted on a LVM volume?

File System: A file system such as ext4 will be on the logical volume. This process is extremely easy to do with LVM as it can be done on the fly with no downtime needed, you can perform it on a mounted volume without interruption.