Persistent Storage in Kubernetes: From Longhorn to OpenEBS

Stateful workloads need storage that outlives pods. In Kubernetes, that means Persistent Volumes (PV) and Persistent Volume Claims (PVC) — a PV is the actual storage, a PVC is a pod's request for it. Kubernetes matches them and handles the binding. The interesting question is what backs those PVs. I started with Longhorn, realized it was too heavy for my cluster, benchmarked alternatives, and switched to OpenEBS. Here's the full story with numbers. Longhorn: Good, But Overkill Longhorn is easy t