# IOPS and elasticsearch

**URL:** <https://discuss.elastic.co/t/iops-and-elasticsearch/251576>\
**Category:** Elasticsearch\
**Created:** [October 9, 2020, 2:09pm UTC](https://discuss.elastic.co/t/iops-and-elasticsearch/251576 "2020-10-09T14:09:19Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![Juicy45](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/juicy45/32/77526_2.png) [@Juicy45](https://discuss.elastic.co/u/Juicy45)\
**Post date:** [October 9, 2020, 2:09pm UTC](https://discuss.elastic.co/t/iops-and-elasticsearch/251576/1 "2020-10-09T14:09:19Z")

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Hi,

I have an Elasticsearch cluster that needs to ingest 2000 EPS.

What is the minimum amount of IOPS do I need on a virtual machine ?

Thank you for your answer.

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**Author:** ![Christian\_Dahlqvist](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christian_dahlqvist/32/4617_2.png) [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)\
**Post date:** [October 11, 2020, 7:44am UTC](https://discuss.elastic.co/t/iops-and-elasticsearch/251576/2 "2020-10-11T07:44:30Z")

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It will depend on a number of factors, e.g. size of the documents, retention period, query volume and patterns, latency requirements etc. The best way to find out is therefore to test.

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**Author:** ![Juicy45](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/juicy45/32/77526_2.png) [@Juicy45](https://discuss.elastic.co/u/Juicy45)\
**Post date:** [October 12, 2020, 7:33am UTC](https://discuss.elastic.co/t/iops-and-elasticsearch/251576/3 "2020-10-12T07:33:09Z")

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Hi, thank you for your answer.

I have an elastic cluster containing 3 master Nodes. 1 Hot data, 2 warm data Node and 3 cold data node.

I have 2000 EPS and size per day is around 50 Go per day.

Retention period is 1 week for hot node and 3 weeks for warm node.

Do you think that 300 IOPS is Okay ?

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<div class="post-metadata">

**Author:** ![Juicy45](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/juicy45/32/77526_2.png) [@Juicy45](https://discuss.elastic.co/u/Juicy45)\
**Post date:** [October 20, 2020, 12:25pm UTC](https://discuss.elastic.co/t/iops-and-elasticsearch/251576/4 "2020-10-20T12:25:07Z")

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Someone having any ratio ?

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**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\
**Post date:** [October 20, 2020, 1:09pm UTC](https://discuss.elastic.co/t/iops-and-elasticsearch/251576/5 "2020-10-20T13:09:35Z")

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No but I'd follow @Christian_Dahlqvist's advice:

> The best way to find out is therefore to test.

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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:** [November 17, 2020, 1:09pm UTC](https://discuss.elastic.co/t/iops-and-elasticsearch/251576/6 "2020-11-17T13:09:39Z")

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