id: etcd name: etcd full-link: /docs/tasks/administer-cluster/configure-upgrade-etcd/ tags: - architecture - storage short-description: > Consistent and highly-available key value store used as Kubernetes' backing store for all cluster data. long-description: > Always have a backup plan for etcd's data for your Kubernetes cluster. For in-depth information on etcd, see [etcd documentation](https://github.com/coreos/etcd/blob/master/Documentation/docs.md).