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Add Additional Storage Proxmox LVM | How To?

by | Oct 9, 2022

How do you add additional storage on Proxmox LVM? Bobcares answers all of your Proxmox-related questions through our Proxmox Support Services.

How do you add additional storage on Proxmox LVM?

Proxmox local-lvm storage keeps the virtual machine’s HDD and volume container. In Proxmox, we occasionally want to add more storage so that the results of the backup schedule and other things can be kept.

We should first create additional storage. We can choose an external HDD or flash disk. After inserting the additional storage, we have to configure it so that the Proxmox can identify the flash drive as additional storage. We can do this in two ways: GUI and CLI.

Adding storage via GUI

We have to follow the steps to add storage to Proxdmox LVM.

  1. Firstly, log in to the Proxmox dashboard.
  2. Then click on the Datacenter in the top left corner.
  3. Now, choose Storage from the options.
  4. Then, select LVM as the storage type and configure the following settings:
    • ID: A unique name for the storage (e.g., NewStorage).
    • Volume Group: Choose the volume group you created or extended (e.g., vg_data or pve).
    • Content: Choose the types of content this storage can hold, such as Disk image, Container, ISO image, or VZDump backup file.
  5. The option to Add, Remove, and Edit will appear.
  6. Select Add and then click Directory.
  7. A pop-up window will appear. We must provide the details for the ID, Directory, and Content text fields. Set Nodes to “All” and check the Enable option.
  8. Finally, click the Add button.

We can find the newly added storage under Datacenter >> Storage.

Adding storage via CLI

We can use the below command to add additional storage (Here, it is a flash disk) in Proxmox:

pvesm add dir your_own_dir --path your_usb_path --content purpose_of_storage

Adding Additional Storage

To add more storage to our Proxmox LVM setup, follow these steps:

  • Physically install the new disk into the Proxmox server.
  • Ensure the OS recognizes the new disk. This often involves checking disk partitions and file systems.
  • Then, create a Physical Volume with this command:

    pvcreate /dev/sdx

    Replace /dev/sdx with the actual device name of the new disk.

  • Next, extend the Volume Group:

    vgextend ProxmoxVG /dev/sdx

    Replace ProxmoxVG with the name of the existing Volume Group.

  • Extend the Logical Volume with this command:

    lvextend -L +100G /dev/mapper/ProxmoxVG-root

    Replace +100G with the desired size increase and ProxmoxVG-root with the name of the root LV.

  • We can resize the filesystem with this command:

    xfs_growfs /dev/mapper/ProxmoxVG-root

    Replace /dev/mapper/ProxmoxVG-root with the path to our filesystem.

[Need help with another issue? We’re available 24/7.]

Conclusion

To conclude, the article contains two methods (via GUI and CLI) from our Tech team to add additional storage on Proxmox LVM.

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