# What happens if index.store.type set as niofs when create index and change to default

**URL:** https://discuss.elastic.co/t/what-happens-if-index-store-type-set-as-niofs-when-create-index-and-change-to-default/345427
**Category:** Elasticsearch
**Created:** [October 20, 2023, 3:23am UTC](https://discuss.elastic.co/t/what-happens-if-index-store-type-set-as-niofs-when-create-index-and-change-to-default/345427 "2023-10-20T03:23:07Z")
**Posts on this page:** 2
**Page:** 1

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### Author: ![jonathanjxsq](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jonathanjxsq/32/126711_2.png) [@jonathanjxsq](https://discuss.elastic.co/u/jonathanjxsq)
#### Post date: [October 20, 2023, 3:23am UTC](https://discuss.elastic.co/t/what-happens-if-index-store-type-set-as-niofs-when-create-index-and-change-to-default/345427/1 "2023-10-20T03:23:07Z")

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I created index with index.store type as niofs. if I change the config to default, which type the system is really running with?  
Based on my test, it seems the system changed from niofs to default. I saw performance benefits.

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<div class="post-metadata">

### 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, 2023, 3:23am UTC](https://discuss.elastic.co/t/what-happens-if-index-store-type-set-as-niofs-when-create-index-and-change-to-default/345427/2 "2023-11-17T03:23:23Z")

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