# How to verify elasticsearch index store?
**URL:** https://discuss.elastic.co/t/how-to-verify-elasticsearch-index-store/169802
**Category:** Elasticsearch
**Created:** [February 25, 2019, 10:42am UTC](https://discuss.elastic.co/t/how-to-verify-elasticsearch-index-store/169802 "2019-02-25T10:42:27Z")
**Posts on this page:** 6
**Page:** 1
### Author:  [@azuresky11](https://discuss.elastic.co/u/azuresky11)
#### Post date: [February 25, 2019, 10:42am UTC](https://discuss.elastic.co/t/how-to-verify-elasticsearch-index-store/169802/1 "2019-02-25T10:42:27Z")
Hi, All
I use mmapfs to write data, but I want to change to niofs, need to rewrite the data? Then how to view index.store.type?
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### Author:  [@DavidTurner](https://discuss.elastic.co/u/DavidTurner)
#### Post date: [February 25, 2019, 11:06am UTC](https://discuss.elastic.co/t/how-to-verify-elasticsearch-index-store/169802/2 "2019-02-25T11:06:28Z")
> [@azuresky11](#):
>
> need to rewrite the data?
No, there's no need to rewrite the data when changing store type.
> [@azuresky11](#):
>
> Then how to view index.store.type?
It is an index-level setting so you can view it using the [index settings API](https://www.elastic.co/guide/en/elasticsearch/reference/current/indices-get-settings.html).
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### Author:  [@azuresky11](https://discuss.elastic.co/u/azuresky11)
#### Post date: [February 25, 2019, 11:14am UTC](https://discuss.elastic.co/t/how-to-verify-elasticsearch-index-store/169802/3 "2019-02-25T11:14:26Z")
Thanks David for your quick response!
after adding 'index.store.type: niofs' to the `config/elasticsearch.yml` .How can I confirm that it has changed?
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### Author:  [@DavidTurner](https://discuss.elastic.co/u/DavidTurner)
#### Post date: [February 25, 2019, 12:34pm UTC](https://discuss.elastic.co/t/how-to-verify-elasticsearch-index-store/169802/4 "2019-02-25T12:34:51Z")
> [@azuresky11](#):
>
> How can I confirm that it has changed?
`GET _nodes/settings` returns the static settings applied on each node.
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### Author:  [@azuresky11](https://discuss.elastic.co/u/azuresky11)
#### Post date: [February 25, 2019, 12:42pm UTC](https://discuss.elastic.co/t/how-to-verify-elasticsearch-index-store/169802/5 "2019-02-25T12:42:56Z")
thanks for you reply!
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [March 25, 2019, 12:43pm UTC](https://discuss.elastic.co/t/how-to-verify-elasticsearch-index-store/169802/6 "2019-03-25T12:43:00Z")
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