A PVC multi-attach issue happens when a single-writer volume is attached to one pod while another pod also tries to use it.
- Explains pending pods during volume rollouts.
- Covers ReadWriteOnce and ReadWriteOncePod access modes.
- Helps you understand why Kubly may use a recreate deployment strategy for single-writer volumes.
- A deployment with a volume never becomes ready.
- Events mention multi-attach errors.
- Old and new pods both reference a single-writer volume.
- A deployment using persistent storage.
- Access to deployment events.
Screenshot Required
- Open the deployment detail page.
- Check events for multi-attach messages.
- Review the volume access mode.
- Wait for old pods to terminate and storage detach to complete.
- If the issue continues, contact your operator before deleting pods or changing storage.
- Scaling replicas for an app that uses single-writer storage without checking access mode.
- Deleting pods without understanding whether the app can tolerate interruption.
- Expecting ReadWriteOnce storage to behave like shared RWX storage.
- Use RWX-capable storage when multiple pods must share the same volume.
- Use snapshots before risky storage operations.