Kubernetes

Storage Commands

Manage persistent data in Kubernetes. Learn about PersistentVolumes, PersistentVolumeClaims, StorageClasses, and how to provision storage for stateful applications.

5 commands

Pro Tips

Use StorageClasses with 'allowVolumeExpansion: true' to resize PVCs without data loss.

Set 'reclaimPolicy: Retain' on important StorageClasses to prevent data deletion when PVCs are removed.

Use 'kubectl get pv' to see all PersistentVolumes and their status (Available, Bound, Released).

Common Mistakes

Default 'reclaimPolicy: Delete' destroys the underlying storage when PVC is deleted. Use Retain for important data.

ReadWriteMany (RWX) access mode isn't supported by all storage providers. Check compatibility.

Commands

List persistent volumes

$ kubectl get pv

List all persistent volumes.

List persistent volume claims

$ kubectl get pvc

List all persistent volume claims.

Describe PVC

$ kubectl describe pvc <name>

Show detailed PVC information.

Get PV sorted by capacity

$ kubectl get pv --sort-by=.spec.capacity.storage

List persistent volumes sorted by size.

List storage classes

$ kubectl get storageclasses

List available storage classes.