# Space requirement for 1.5TB of uncompressed text

**URL:** <https://discuss.elastic.co/t/space-requirement-for-1-5tb-of-uncompressed-text/108261>\
**Category:** Elasticsearch\
**Created:** [November 19, 2017, 3:59am UTC](https://discuss.elastic.co/t/space-requirement-for-1-5tb-of-uncompressed-text/108261 "2017-11-19T03:59:43Z")\
**Posts on this page:** 6\
**Page:** 1

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**Author:** ![dance2die](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dance2die/32/24427_2.png) [@dance2die](https://discuss.elastic.co/u/dance2die)\
**Post date:** [November 19, 2017, 3:59am UTC](https://discuss.elastic.co/t/space-requirement-for-1-5tb-of-uncompressed-text/108261/1 "2017-11-19T03:59:43Z")

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Hi, I have a MSSQL Server 2016 database table with 1.5TB of uncompressed text `varchar(max)` with an integer ID field.

How much space would be required to copy the data from MSSQL Server to ElasticSearch (on Windows server)?

I am trying to create only one node to get started.

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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:** [November 19, 2017, 4:14am UTC](https://discuss.elastic.co/t/space-requirement-for-1-5tb-of-uncompressed-text/108261/2 "2017-11-19T04:14:06Z")

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This is impossible to guess. It depends on so many factors.  
The only way to know is to test it on a significant subset.

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**Author:** ![dance2die](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dance2die/32/24427_2.png) [@dance2die](https://discuss.elastic.co/u/dance2die)\
**Post date:** [November 19, 2017, 4:28am UTC](https://discuss.elastic.co/t/space-requirement-for-1-5tb-of-uncompressed-text/108261/3 "2017-11-19T04:28:07Z")

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You mean, e.g.) extract about 10 samples of different 10Gs of texts into ES to see how they fan out?

What are the factors I should consider before I try those samples?  
(I can think of changing an analyzer setting)

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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:** [November 19, 2017, 6:57am UTC](https://discuss.elastic.co/t/space-requirement-for-1-5tb-of-uncompressed-text/108261/4 "2017-11-19T06:57:11Z")

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I mean extract something like 10% of the database to have something significant.

Analyzers, multi fields, \_all field... all those have an impact. The content as well. Like if in a field you index only 5 different values or 500000 differentl values.

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<div class="post-metadata">

**Author:** ![dance2die](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dance2die/32/24427_2.png) [@dance2die](https://discuss.elastic.co/u/dance2die)\
**Post date:** [November 19, 2017, 3:50pm UTC](https://discuss.elastic.co/t/space-requirement-for-1-5tb-of-uncompressed-text/108261/5 "2017-11-19T15:50:40Z")

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Thank you @dadoonet for giving me a guidance on how to get started.  
I will try out different combinations to find good use cases for me.

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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:** [December 17, 2017, 3:51pm UTC](https://discuss.elastic.co/t/space-requirement-for-1-5tb-of-uncompressed-text/108261/6 "2017-12-17T15:51:22Z")

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