← Notes
2026-07
The PVC was never actually the blocker
NFS-backed volumes are real network storage, not node-local — a stateful workload had already been running against one from a different node for weeks before anyone checked.
Background
Rebalancing workloads across the cluster stalled on the assumption that a persistent volume pinned its workload to the node that had first claimed it.
Path
- Symptom
- Workload rebalance stalled
- Assumption
- assume storage pins the node
- Measurement
- inspect a workload already running cross-node
- Decision
- move three services onto the other node
Response
Check a workload already running cross-node against an NFS-backed volume, confirm the constraint does not exist, then move three services onto the other node.
Related system