pv-reclaiming-opts (#1951)

docs-2.0/nebula-operator/8.custom-cluster-configurations/8.2.pv-reclaim.md

@@ -1,10 +1,8 @@
 # Reclaim PVs
 
-NebulaGraph Operator uses PVs (Persistent Volumes) and PVCs (Persistent Volume Claims) to store persistent data. If you accidentally deletes a NebulaGraph cluster, PV and PVC objects and the relevant data will be retained to ensure data security.
+NebulaGraph Operator uses PVs (Persistent Volumes) and PVCs (Persistent Volume Claims) to store persistent data. If you accidentally deletes a NebulaGraph cluster, by default, PV and PVC objects and the relevant data will be retained to ensure data security.
 
-You can define whether to reclaim PVs or not in the configuration file of the cluster's CR instance with the parameter `enablePVReclaim`.
-
-If you need to release a graph space and retain the relevant data, update your nebula cluster by setting the parameter `enablePVReclaim` to `true`.
+You can also define the automatic deletion of PVCs to release data by setting the parameter `spec.enablePVReclaim` to `true` in the configuration file of the cluster instance. As for whether PV will be deleted automatically after PVC is deleted, you need to customize the PV reclaim policy. See [reclaimPolicy in StorageClass](https://kubernetes.io/docs/concepts/storage/storage-classes/#reclaim-policy) and [PV Reclaiming](https://kubernetes.io/docs/concepts/storage/persistent-volumes/#reclaiming) for details.
 
 ## Prerequisites