# Will there be any data loss when the disk reached its 90% watermark?

**URL:** <https://discuss.elastic.co/t/will-there-be-any-data-loss-when-the-disk-reached-its-90-watermark/219585>\
**Category:** Elasticsearch\
**Created:** [February 17, 2020, 9:20am UTC](https://discuss.elastic.co/t/will-there-be-any-data-loss-when-the-disk-reached-its-90-watermark/219585 "2020-02-17T09:20:47Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![irobot678](https://avatars.discourse-cdn.com/v4/letter/i/54ee81/32.png) [@irobot678](https://discuss.elastic.co/u/irobot678)\
**Post date:** [February 17, 2020, 9:20am UTC](https://discuss.elastic.co/t/will-there-be-any-data-loss-when-the-disk-reached-its-90-watermark/219585/1 "2020-02-17T09:20:48Z")

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HI,

I am using elastic stack of version 7.11 with x- pack installed

I using filebeat to ingest the data into the elastic, but my disk is reached to 90% which is the watermark i configured.

All i want to know is ? if i scale up disk after 2 days does filebeat reads from the last reading postion or all the last 2 days data will be lost ?

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**Author:** ![spinscale](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/spinscale/32/25011_2.png) [@spinscale](https://discuss.elastic.co/u/spinscale)\
**Post date:** [February 17, 2020, 10:38am UTC](https://discuss.elastic.co/t/will-there-be-any-data-loss-when-the-disk-reached-its-90-watermark/219585/2 "2020-02-17T10:38:05Z")

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the filebeat docs have a small paragraph about how filebeat works, explaining the harvester and its registry, that hopefully answers some of your questions.

See [https://www.elastic.co/guide/en/beats/filebeat/current/how-filebeat-works.html](https://www.elastic.co/guide/en/beats/filebeat/current/how-filebeat-works.html)

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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:** [March 16, 2020, 10:52am UTC](https://discuss.elastic.co/t/will-there-be-any-data-loss-when-the-disk-reached-its-90-watermark/219585/3 "2020-03-16T10:52:19Z")

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