Container storage in Kubernetes provides mechanisms for pods to access and persist data beyond the lifecycle of individual containers. Persistent Volumes (PVs) abstract storage resources from the underlying infrastructure, while Persistent Volume Claims (PVCs) let users request storage without knowing implementation details. StorageClasses enable dynamic provisioning, and CSI (Container Storage Interface) drivers standardize how storage providers integrate with Kubernetes. Understanding volume types, access modes, binding policies, and lifecycle management is essential for running stateful workloads—databases, message queues, file servers—that require data to survive pod restarts, rescheduling, and cluster failures.