# Elastic Usage Disk Filtered By Date

**URL:** <https://discuss.elastic.co/t/elastic-usage-disk-filtered-by-date/363668>\
**Category:** Elasticsearch\
**Created:** [July 24, 2024, 4:31am UTC](https://discuss.elastic.co/t/elastic-usage-disk-filtered-by-date/363668 "2024-07-24T04:31:59Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![zerratriani](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/zerratriani/32/113308_2.png) [@zerratriani](https://discuss.elastic.co/u/zerratriani)\
**Post date:** [July 24, 2024, 4:31am UTC](https://discuss.elastic.co/t/elastic-usage-disk-filtered-by-date/363668/1 "2024-07-24T04:31:59Z")

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I have an Elasticsearch cluster and want to know the memory usage of all indices over the past 3 months. This way, I can request additional resources using accurate data.

I am using the command `/_cat/indices?v`, which provides usage data from the beginning until today. How can I filter it to show only the last 3 months?

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<div class="post-metadata">

**Author:** ![stephenb](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/stephenb/32/40856_2.png) [@stephenb](https://discuss.elastic.co/u/stephenb)\
**Post date:** [July 24, 2024, 2:25pm UTC](https://discuss.elastic.co/t/elastic-usage-disk-filtered-by-date/363668/2 "2024-07-24T14:25:55Z")

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hi @zerratriani

No simple real simple way to do that...  
Depending how your indices / data streams are broken up... that could make it easier, but I think you will need to estimate avg doc size per index then multiple that by the number of estimated docs over that time frame.

Apologies I wish this was easier...