# How big should the disk of each node usually be configured reasonably?

**URL:** <https://discuss.elastic.co/t/how-big-should-the-disk-of-each-node-usually-be-configured-reasonably/327897>\
**Category:** Elasticsearch\
**Created:** [March 17, 2023, 2:46am UTC](https://discuss.elastic.co/t/how-big-should-the-disk-of-each-node-usually-be-configured-reasonably/327897 "2023-03-17T02:46:35Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![jaryzhong](https://avatars.discourse-cdn.com/v4/letter/j/df705f/32.png) [@jaryzhong](https://discuss.elastic.co/u/jaryzhong)\
**Post date:** [March 17, 2023, 2:46am UTC](https://discuss.elastic.co/t/how-big-should-the-disk-of-each-node-usually-be-configured-reasonably/327897/1 "2023-03-17T02:46:35Z")

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We have 10TB of data and this 10TB of data already contains all replicas, we have 5 data nodes, each node will store 2TB of data, how big should the disk of each node usually be configured reasonably?

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**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\
**Post date:** [March 19, 2023, 8:40pm UTC](https://discuss.elastic.co/t/how-big-should-the-disk-of-each-node-usually-be-configured-reasonably/327897/2 "2023-03-19T20:40:06Z")

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Welcome to our community! 😃

Generally you want 10-20% extra to allow for merging and other system related usages.

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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:** [April 16, 2023, 8:40pm UTC](https://discuss.elastic.co/t/how-big-should-the-disk-of-each-node-usually-be-configured-reasonably/327897/3 "2023-04-16T20:40:25Z")

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