Municipal GIS needs to grow an existing PVC’s capacity without recreating the volume. What StorageClass setting must be enabled (with CSI support) for that expansion?
Select an answer to reveal the explanation.
Short Explanation
Growing a disk in place is like expanding a filing cabinet drawer—you need the cabinet model to allow expansion. On Kubernetes that flag is allowVolumeExpansion on the StorageClass, and the CSI driver has to support it. Reclaim policy and Deployment deadlines don’t flip the resize switch.
Full Explanation
PersistentVolumeClaim expansion requires the StorageClass to set allowVolumeExpansion to true and a volume plugin/CSI driver that implements expansion. Afterward the PVC size can be increased and the filesystem grown per driver capabilities. ReclaimPolicy Delete, misplacing volumeMode on Pods, and Deployment progressDeadlineSeconds do not enable volume expansion.