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Version: v1.8 (Dev)

Clone a Volume

How to Clone a Volume​

After creating a volume, you can clone the volume by following the steps below:

  1. Click the ⋮ button and select the Clone option.

    clone-volume-1

  2. Select clone volume data.

  3. Configure the Name of the new volume and click Create.

  4. (Optional) A cloned volume can be added to a VM using Add Existing Volume.

    clone-volume-2

Replica Rebuilding for Detached Cloned Longhorn Volumes​

When you clone a detached Longhorn volume in a multi-node cluster, Longhorn creates only one replica instead of the expected number (for example, three replicas in a three-node cluster). The displayed volume clone status is copy-completed-awaiting-healthy instead of complete.

Longhorn automatically rebuilds the remaining replicas after the cloned volume is attached to a virtual machine. However, you can start the replica rebuilding process immediately for the detached volume by performing either of the following actions:

  • On the Longhorn UI, manually attach the volume and wait for the replica rebuilding process to be completed.

  • Enable the Longhorn setting offline-replica-rebuilding to allow automatic rebuilding of replicas for detached volumes.

note

This behavior applies exclusively to detached volumes. Longhorn automatically performs replica rebuilding for volumes that are attached to a running virtual machine.