# Need to apply ILM policy on existing index

**URL:** <https://discuss.elastic.co/t/need-to-apply-ilm-policy-on-existing-index/290987>\
**Category:** Elasticsearch\
**Tags:** ilm-index-lifecycle-management\
**Created:** [December 5, 2021, 1:48pm UTC](https://discuss.elastic.co/t/need-to-apply-ilm-policy-on-existing-index/290987 "2021-12-05T13:48:49Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![mangeshmj1992](https://avatars.discourse-cdn.com/v4/letter/m/d9b06d/32.png) [@mangeshmj1992](https://discuss.elastic.co/u/mangeshmj1992)\
**Post date:** [December 5, 2021, 1:48pm UTC](https://discuss.elastic.co/t/need-to-apply-ilm-policy-on-existing-index/290987/1 "2021-12-05T13:48:49Z")

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Hello team,  
I have created one index kafka-facebook and missed to apply ILM policies.  
Now all data is going into S3 bucket like: partials:kafka-facebook-2021-12-04-000035

The above index has almost 500 GB of data. can you please help me to apply new ILM policy without deleting existing data

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**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\
**Post date:** [December 5, 2021, 11:42pm UTC](https://discuss.elastic.co/t/need-to-apply-ilm-policy-on-existing-index/290987/2 "2021-12-05T23:42:46Z")

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Please see [Manage existing indices | Elasticsearch Guide [7.15] | Elastic](https://www.elastic.co/guide/en/elasticsearch/reference/7.15/ilm-with-existing-indices.html)

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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:** [January 2, 2022, 11:43pm UTC](https://discuss.elastic.co/t/need-to-apply-ilm-policy-on-existing-index/290987/3 "2022-01-02T23:43:32Z")

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