Longhorn supports restoring backups, and one of the use cases for this feature is to restore data for use in a Kubernetes StatefulSet, which requires restoring a volume for each replica that was backed up.

To restore, follow the below instructions. The example below uses a StatefulSet with one volume attached to each Pod and two replicas.

1. In Kubernetes, create a Persistent Volume for each Longhorn volume that was created. Name the volumes something that can easily be referenced later for the Persistent Volume Claims. storage capacity, numberOfReplicas, , and volumeHandle must be replaced below. In the example, we’re referencing statefulset-vol-0 and statefulset-vol-1 in Longhorn and using longhorn as our storageClassName.

2. Create the StatefulSet:

Result: The restored data should now be accessible from inside the StatefulSet .