# Elasticsearch migration and rollback strategy (snapshot and restore)

**URL:** <https://discuss.elastic.co/t/elasticsearch-migration-and-rollback-strategy-snapshot-and-restore/365577>\
**Category:** Elasticsearch\
**Created:** [August 26, 2024, 7:54pm UTC](https://discuss.elastic.co/t/elasticsearch-migration-and-rollback-strategy-snapshot-and-restore/365577 "2024-08-26T19:54:03Z")\
**Posts on this page:** 1\
**Showing post:** 5

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**Author:** ![mario12](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/mario12/32/29324_2.png) [@mario12](https://discuss.elastic.co/u/mario12)\
**Post date:** [August 27, 2024, 2:04pm UTC](https://discuss.elastic.co/t/elasticsearch-migration-and-rollback-strategy-snapshot-and-restore/365577/5 "2024-08-27T14:04:08Z")

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There is incremental snapshot. Please refer:

> [@Incremental Snapshot / Restore](https://discuss.elastic.co/t/incremental-snapshot-restore/28282/9):
>
> I don't really know. I mean that files which have been used by snapshots are stored in a metadata file IIRC. The question is more: "what do you exactly want to know"? You have to understand that snapshot backups "shards" and not individual documents. So the difference you are looking after won't tell you which documents have been backup'ed on the second run. Makes sense?

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