# Elastic Search node backup and restore

**URL:** <https://discuss.elastic.co/t/elastic-search-node-backup-and-restore/369709>\
**Category:** Elasticsearch\
**Tags:** snapshot-and-restore\
**Created:** [October 29, 2024, 9:24am UTC](https://discuss.elastic.co/t/elastic-search-node-backup-and-restore/369709 "2024-10-29T09:24:40Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![mahi657](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/mahi657/32/138800_2.png) [@mahi657](https://discuss.elastic.co/u/mahi657)\
**Post date:** [October 29, 2024, 9:24am UTC](https://discuss.elastic.co/t/elastic-search-node-backup-and-restore/369709/1 "2024-10-29T09:24:40Z")

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I have 2 **unconnected** nodes of Elasticsearch, one at 7.11 level and another at latest 8.15. I want to backup and restore all the data from 7.11 node to 8.15 node. I took a snapshot on 7.11 node. Moved (using another server, since both nodes are not connected) it to a folder on 8.15 node, added to the repo, but when I try "GET \_snapshot/my\_backup\_repo/\_all", it doesn't return anything. I assume the snapshot taken from 7.11 is incompatible on 8.15.

I cannot use the reindex method also, since both nodes are not connected.

If I were to copy(using another server) file system /data along with indices folder from 7.11 to 8.15 node, would it work, will there be any compatibility issues ?

Are there any other methods to move all the data from 7.11 to 8.15 node.

P.S. - I can't upgrade to 7.17 from 7.11 before taking the snapshot, because I am using custom packed Elasticsearch on ppc64le, since it is not officially supported.

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<div class="post-metadata">

**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:** [October 29, 2024, 10:04am UTC](https://discuss.elastic.co/t/elastic-search-node-backup-and-restore/369709/2 "2024-10-29T10:04:18Z")

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> [@mahi657](#):
>
> I assume the snapshot taken from 7.11 is incompatible on 8.15.

No, that should work fine as long as the indices were created in Elasticsearch 7.x. I have used that method in the past so suspect you must have done something wrong.

> [@mahi657](#):
>
> If I were to copy(using another server) file system /data along with indices folder from 7.11 to 8.15 node, would it work, will there be any compatibility issues ?

This will not work. Your initial approach is the correct one.

> [@mahi657](#):
>
> P.S. - I can't upgrade to 7.17 from 7.11 before taking the snapshot, because I am using custom packed Elasticsearch on ppc64le, since it is not officially supported.

If you are running an unsupported distribution all bets are off and there may be incompatibilities.

I would recommend switching to an official distribution as you would be able to get help here around that even if it means switching hardware.