# What will be the size of index, if the data size is 1 TB?

**URL:** <https://discuss.elastic.co/t/what-will-be-the-size-of-index-if-the-data-size-is-1-tb/87248>\
**Category:** Elasticsearch\
**Created:** [May 26, 2017, 11:27am UTC](https://discuss.elastic.co/t/what-will-be-the-size-of-index-if-the-data-size-is-1-tb/87248 "2017-05-26T11:27:41Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![jafferwilson](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jafferwilson/32/14379_2.png) [@jafferwilson](https://discuss.elastic.co/u/jafferwilson)\
**Post date:** [May 26, 2017, 11:27am UTC](https://discuss.elastic.co/t/what-will-be-the-size-of-index-if-the-data-size-is-1-tb/87248/1 "2017-05-26T11:27:41Z")

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I would like to know whether what will be the size of the index, if I load data of size 1 TB on elasticsearch. Each document is of 4 KB. Kindly suggest the server configuration for this sort of condition.

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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:** [May 26, 2017, 11:36am UTC](https://discuss.elastic.co/t/what-will-be-the-size-of-index-if-the-data-size-is-1-tb/87248/2 "2017-05-26T11:36:07Z")

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The indexed size on disk will depend a lot on what type of data you are indexing and how you need to query and/or analyse it, which is what will drive how you define your mappings. The best way to find out is to test/benchmark it with a good amount of data (at least a few hundred MB).

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**Author:** ![jafferwilson](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/jafferwilson/32/14379_2.png) [@jafferwilson](https://discuss.elastic.co/u/jafferwilson)\
**Post date:** [May 26, 2017, 11:45am UTC](https://discuss.elastic.co/t/what-will-be-the-size-of-index-if-the-data-size-is-1-tb/87248/3 "2017-05-26T11:45:08Z")

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I am thinking to mount the elasticsearch on my crawled database.. say for example like common crawl. Now can you help me with the server configuration?

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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:** [June 23, 2017, 11:45am UTC](https://discuss.elastic.co/t/what-will-be-the-size-of-index-if-the-data-size-is-1-tb/87248/4 "2017-06-23T11:45:18Z")

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