# Add new alphas and zeros to existing cluster

**URL:** <https://discuss.dgraph.io/t/add-new-alphas-and-zeros-to-existing-cluster/16891>\
**Category:** Documentation\
**Tags:** kind:question\
**Created:** [February 24, 2022, 5:14am UTC](https://discuss.dgraph.io/t/add-new-alphas-and-zeros-to-existing-cluster/16891 "2022-02-24T05:14:44Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![lijose](https://yyz1.discourse-cdn.com/flex007/user_avatar/discuss.dgraph.io/lijose/32/9571_2.png) [@lijose](https://discuss.dgraph.io/u/lijose)\
**Post date:** [February 24, 2022, 5:14am UTC](https://discuss.dgraph.io/t/add-new-alphas-and-zeros-to-existing-cluster/16891/1 "2022-02-24T05:14:44Z")

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I have a Dgraph cluster of one **Zero** and one **Alpha** with no replication.

I want to add scale by

1. adding more memory(SSD) to existing instance
2. add more instance

I am unable to find the documentation for that. I would like to know the steps required do so and does dgraph auto reshrad data between old and new instance ?

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**Author:** ![Valdanito](https://yyz1.discourse-cdn.com/flex007/user_avatar/discuss.dgraph.io/valdanito/32/1381_2.png) [@Valdanito](https://discuss.dgraph.io/u/Valdanito)\
**Post date:** [March 5, 2022, 2:32am UTC](https://discuss.dgraph.io/t/add-new-alphas-and-zeros-to-existing-cluster/16891/2 "2022-03-05T02:32:30Z")

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If you use k8s, you only need to increase the `replicaCount` of alpha.

> [@lijose](#):
>
> does dgraph auto reshrad data between old and new instance ?

Yes.

The document → [https://dgraph.io/docs/deploy/kubernetes/#upgrade-to-ha-cluster-setup](https://dgraph.io/docs/deploy/kubernetes/#upgrade-to-ha-cluster-setup)