# Reduce storage taken by specific index ? Freeze index ? Frozen tier ? Cold tier?

**URL:** <https://discuss.elastic.co/t/reduce-storage-taken-by-specific-index-freeze-index-frozen-tier-cold-tier/338311>\
**Category:** Elasticsearch\
**Tags:** ilm-index-lifecycle-management\
**Created:** [July 13, 2023, 9:53am UTC](https://discuss.elastic.co/t/reduce-storage-taken-by-specific-index-freeze-index-frozen-tier-cold-tier/338311 "2023-07-13T09:53:13Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![mlng54](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/mlng54/32/123408_2.png) [@mlng54](https://discuss.elastic.co/u/mlng54)\
**Post date:** [July 13, 2023, 9:53am UTC](https://discuss.elastic.co/t/reduce-storage-taken-by-specific-index-freeze-index-frozen-tier-cold-tier/338311/1 "2023-07-13T09:53:13Z")

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Hi everyone,

I recently experienced a DDoS attack on my Apache server. The logs are sent to Elasticsearch, so my last indices are around 70Gb/day. I have not configured ILM on my ELK stack yet but I would like to reduce the storage these "DDoS indices" take while keeping it.

I read the docs about freeze but I see two things : "freeze index" page where they tell it has been deprecated because of improvements in heap utilization and "frozen data tier" page that does not contain any deprecation warning. The way I understand it, "freeze index" concerns the button in "Stack Mangement \> Index Management \> Manage" and the freeze API, while frozen data tier concerns ILM. But when i try to create an Index Policy on Kibana UI, I can see Hot, Warm and Cold tiers but not Frozen tier.

So, my questions are : Are those two pages two different things? Are they both deprecated? What's the difference between the two of them? How do i configure Frozen tier for ILM if I don't see it in Kibana's UI ? But most importantly what should I use to reduce the storage taken by these indices? I am running ELK stack on version 7.17.9 btw.

Thanks.

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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:** [August 10, 2023, 9:53am UTC](https://discuss.elastic.co/t/reduce-storage-taken-by-specific-index-freeze-index-frozen-tier-cold-tier/338311/2 "2023-08-10T09:53:31Z")

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