# How much storage for persistent volume for dedicated master nodes in Kubernetes?

**URL:** <https://discuss.elastic.co/t/how-much-storage-for-persistent-volume-for-dedicated-master-nodes-in-kubernetes/263590>\
**Category:** Elasticsearch\
**Created:** [February 8, 2021, 11:38am UTC](https://discuss.elastic.co/t/how-much-storage-for-persistent-volume-for-dedicated-master-nodes-in-kubernetes/263590 "2021-02-08T11:38:33Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Pikabanga](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/pikabanga/32/65614_2.png) [@Pikabanga](https://discuss.elastic.co/u/Pikabanga)\
**Post date:** [February 8, 2021, 11:38am UTC](https://discuss.elastic.co/t/how-much-storage-for-persistent-volume-for-dedicated-master-nodes-in-kubernetes/263590/1 "2021-02-08T11:38:33Z")

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Hi!

I'm wondering how much persistent storage is required for master nodes if we have a cluster with dedicated master nodes and data nodes? I am assuming the master nodes don't require as much data as the data nodes?

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**Author:** ![DavidTurner](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/davidturner/32/22453_2.png) [@DavidTurner](https://discuss.elastic.co/u/DavidTurner)\
**Post date:** [February 8, 2021, 11:48am UTC](https://discuss.elastic.co/t/how-much-storage-for-persistent-volume-for-dedicated-master-nodes-in-kubernetes/263590/2 "2021-02-08T11:48:44Z")

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> [@Pikabanga](#):
>
> I am assuming the master nodes don't require as much data as the data nodes?

That's correct. The specific requirement depends on your cluster so it's not possible to give a concrete figure, but typically a dedicated master will run fine with just a few GB of space, often less. It's best to measure it in your actual cluster.

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**Author:** ![Pikabanga](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/pikabanga/32/65614_2.png) [@Pikabanga](https://discuss.elastic.co/u/Pikabanga)\
**Post date:** [February 8, 2021, 12:49pm UTC](https://discuss.elastic.co/t/how-much-storage-for-persistent-volume-for-dedicated-master-nodes-in-kubernetes/263590/3 "2021-02-08T12:49:06Z")

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Thank you very much for the quick answer!

Out of curiosity, what kind of data would the dedicated master nodes store that move the requirements up to multiple GB?

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**Author:** ![DavidTurner](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/davidturner/32/22453_2.png) [@DavidTurner](https://discuss.elastic.co/u/DavidTurner)\
**Post date:** [February 8, 2021, 1:16pm UTC](https://discuss.elastic.co/t/how-much-storage-for-persistent-volume-for-dedicated-master-nodes-in-kubernetes/263590/4 "2021-02-08T13:16:58Z")

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It's just the cluster metadata, maybe a few copies thereof because of how it's stored. In a humongous cluster it could be ≥100MB per copy, although most clusters are a lot smaller.

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [March 8, 2021, 1:17pm UTC](https://discuss.elastic.co/t/how-much-storage-for-persistent-volume-for-dedicated-master-nodes-in-kubernetes/263590/5 "2021-03-08T13:17:19Z")

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