# Apply best\_compression to save disk space

**URL:** <https://discuss.elastic.co/t/apply-best-compression-to-save-disk-space/289705>\
**Category:** Elasticsearch\
**Created:** [November 19, 2021, 3:15pm UTC](https://discuss.elastic.co/t/apply-best-compression-to-save-disk-space/289705 "2021-11-19T15:15:24Z")\
**Posts on this page:** 1\
**Showing post:** 2

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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:** [November 19, 2021, 3:41pm UTC](https://discuss.elastic.co/t/apply-best-compression-to-save-disk-space/289705/2 "2021-11-19T15:41:19Z")

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In order for the compression to take effect I believe you need to forcemerge the indices down to fewer segments as only newly created/merged segments will get the improved compression applied.

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_[View the full topic](https://discuss.elastic.co/t/apply-best-compression-to-save-disk-space/289705)._