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Aloha people, this tutorial will explain how to migrate data from one StorageClass to another. Here is the scenario: You have a certain setup with some prometheus pods. These pods have a PersitanceVolumeClaim (pvc) of 10Gi and a StorageClass (sc) called "gp2" with an PersistanceVolume (pv) attached to it. Now the thing is the sc was manually configured to use 'retain' as the reclaimPolicy. This will be resettet back to 'delete' with deploying the same cluster again. We now want to move the per...