Update kubernetes-persisting-scheduler.md (#4568)

dapr / PVC uninstall specifics, about how a manual deletion of PVCs is required to define a new volume.

Signed-off-by: Jake Engelberg <[email protected]>

Author: jake-engelberg

daprdocs/content/en/operations/hosting/kubernetes/kubernetes-persisting-scheduler.md

@@ -69,6 +69,14 @@ helm upgrade --install dapr dapr/dapr \
 {{% /codetab %}}
 {{< /tabs >}}
 
+{{% alert title="Note" color="primary" %}}
+For storage providers that do NOT support dynamic volume expansion: If Dapr has ever been installed on the cluster before, the Scheduler's Persistent Volume Claims must be manually uninstalled in order for new ones with increased storage size to be created.
+```bash
+kubectl delete pvc -n dapr-system dapr-scheduler-data-dir-dapr-scheduler-server-0 dapr-scheduler-data-dir-dapr-scheduler-server-1 dapr-scheduler-data-dir-dapr-scheduler-server-2
+```
+Persistent Volume Claims are not deleted automatically with an [uninstall]({{< ref dapr-uninstall.md >}}). This is a deliberate safety measure to prevent accidental data loss.
+{{% /alert %}}
+
 #### Increase existing Scheduler Storage Size
 
 {{% alert title="Warning" color="warning" %}}