# How to Move existing Index data to warm nodes
**URL:** https://discuss.elastic.co/t/how-to-move-existing-index-data-to-warm-nodes/246077
**Category:** Elasticsearch
**Created:** [August 24, 2020, 9:03am UTC](https://discuss.elastic.co/t/how-to-move-existing-index-data-to-warm-nodes/246077 "2020-08-24T09:03:47Z")
**Posts on this page:** 7
**Page:** 1
### Author:  [@rahulkothanath](https://discuss.elastic.co/u/rahulkothanath)
#### Post date: [August 24, 2020, 9:03am UTC](https://discuss.elastic.co/t/how-to-move-existing-index-data-to-warm-nodes/246077/1 "2020-08-24T09:03:47Z")
Currently I have a 6 node cluster (4 hot nodes and 2 warm nodes). hot nodes contain less disk space and warm nodes are almost free..
The indexes are currently active and data ingestion is going on. below are my doubt:
1. how can I move the index data from hot nodes to warm nodes while indexing is going on
2. can I move partial data from hot nodes into warm nodes to relax the hot node storage.
thanks for the help.
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### Author:  [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)
#### Post date: [August 24, 2020, 9:08am UTC](https://discuss.elastic.co/t/how-to-move-existing-index-data-to-warm-nodes/246077/2 "2020-08-24T09:08:30Z")
Are you using time-based indices? Only full indices can be relocated.
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### Author:  [@warkolm](https://discuss.elastic.co/u/warkolm)
#### Post date: [August 26, 2020, 4:21am UTC](https://discuss.elastic.co/t/how-to-move-existing-index-data-to-warm-nodes/246077/4 "2020-08-26T04:21:31Z")
You don't want to move indices if they still have data going into them. You also cannot move part of an index (aka a shard) like that.
Make sure you have looked into [ILM](https://www.elastic.co/guide/en/elasticsearch/reference/current/ilm-start.html) as well.
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### Author:  [@rahulkothanath](https://discuss.elastic.co/u/rahulkothanath)
#### Post date: [August 26, 2020, 4:42am UTC](https://discuss.elastic.co/t/how-to-move-existing-index-data-to-warm-nodes/246077/5 "2020-08-26T04:42:27Z")
thanks for the info. I have created ILM but not sure if I can apply ILM to an existing index.
if I can bring an existing index to a new ILM policy it would be great and I will be able to move data into warm nodes as part of ILM.
thanks for help.
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### Author:  [@warkolm](https://discuss.elastic.co/u/warkolm)
#### Post date: [August 26, 2020, 4:47am UTC](https://discuss.elastic.co/t/how-to-move-existing-index-data-to-warm-nodes/246077/6 "2020-08-26T04:47:56Z")
Check out [https://www.elastic.co/guide/en/elasticsearch/reference/current/ilm-with-existing-indices.html#ilm-existing-indices-apply](https://www.elastic.co/guide/en/elasticsearch/reference/current/ilm-with-existing-indices.html#ilm-existing-indices-apply)
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### Author:  [@rahulkothanath](https://discuss.elastic.co/u/rahulkothanath)
#### Post date: [August 26, 2020, 4:56am UTC](https://discuss.elastic.co/t/how-to-move-existing-index-data-to-warm-nodes/246077/7 "2020-08-26T04:56:41Z")
thank you very much for the help..
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [September 23, 2020, 4:56am UTC](https://discuss.elastic.co/t/how-to-move-existing-index-data-to-warm-nodes/246077/8 "2020-09-23T04:56:56Z")
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