# Index rollover and hot to warm node move

**URL:** <https://discuss.elastic.co/t/index-rollover-and-hot-to-warm-node-move/289982>\
**Category:** Elasticsearch\
**Tags:** ilm-index-lifecycle-management\
**Created:** [November 23, 2021, 7:59pm UTC](https://discuss.elastic.co/t/index-rollover-and-hot-to-warm-node-move/289982 "2021-11-23T19:59:33Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![keiransteele](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/keiransteele/32/93387_2.png) [@keiransteele](https://discuss.elastic.co/u/keiransteele)\
**Post date:** [November 23, 2021, 7:59pm UTC](https://discuss.elastic.co/t/index-rollover-and-hot-to-warm-node-move/289982/1 "2021-11-23T19:59:33Z")

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I'm trying to understand how ILM works with the default 50GB/30days policy if I also want to move indicies longer than 7 days to warm nodes and it takes longer than 7 days to fill an index. Should I actually be making the rollover policy 50GB/7days to match the move to the warm tier? I originally had it like this but it resulted in more open indicies and more memory usage so swapped it back. I don't believe I can then merge multiple 7 day indicies after they've left the hot tier either? Any guidance would be appreciated. Thanks.

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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:** [November 24, 2021, 1:44am UTC](https://discuss.elastic.co/t/index-rollover-and-hot-to-warm-node-move/289982/2 "2021-11-24T01:44:05Z")

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From [the docs](https://www.elastic.co/guide/en/elasticsearch/reference/7.15/ilm-rollover.html);

> Rolls over a target to a new index when the existing index meets one or more of the rollover conditions.

So that means if the index is 5GB and 7 days old, it'll still rollover, ie the conditions are the _max_ values of whatever you define.

> [@keiransteele](#):
>
> I also want to move indicies longer than 7 days to warm nodes and it takes longer than 7 days to fill an index

Basically you need to make a call on if the 7 day limit, or the 50GB size is the more important.

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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 22, 2021, 1:44am UTC](https://discuss.elastic.co/t/index-rollover-and-hot-to-warm-node-move/289982/3 "2021-12-22T01:44:13Z")

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