Question

You deploy a StatefulSet named 'db' with 3 replicas. Its spec includes a volumeClaimTemplates entry with metadata.name 'data', accessModes ReadWriteOnce, storageClassName 'fast-ssd', and a 10Gi request. The 'fast-ssd' StorageClass supports dynamic provisioning. After the StatefulSet becomes fully ready, how many PersistentVolumeClaims exist and what is their naming pattern?

Accepted Answer

3 PVCs, each dynamically provisioned, named data-db-0, data-db-1, and data-db-2

Answer

1 PVC named data, shared by all three pods via ReadWriteOnce access

Answer

3 PVCs named db-data-0, db-data-1, and db-data-2, but you must pre-create the matching PVs manually

Answer

0 PVCs, because volumeClaimTemplates only defines an ephemeral volume that lives with each pod