---
title: Downsampling a time series data stream
description: Downsampling reduces the footprint of your time series data by storing it at reduced granularity. Metrics tools and solutions collect large amounts of...
url: https://docs-v3-preview.elastic.dev/elastic/docs-content/pull/4236/manage-data/data-store/data-streams/downsampling-time-series-data-stream
products:
  - Elasticsearch
---

# Downsampling a time series data stream
Downsampling reduces the footprint of your [time series data](https://docs-v3-preview.elastic.dev/elastic/docs-content/pull/4236/manage-data/data-store/data-streams/time-series-data-stream-tsds) by storing it at reduced granularity.
Metrics tools and solutions collect large amounts of time series data over time. As the data ages, it becomes less relevant to the current state of the system. You can _downsample_ older data to reduce its resolution and precision, freeing up storage space.
This section explains the available downsampling options and helps you understand the process.
- [Downsampling concepts](https://docs-v3-preview.elastic.dev/elastic/docs-content/pull/4236/manage-data/data-store/data-streams/downsampling-concepts)
- [Configuring a time series data stream for downsampling](https://docs-v3-preview.elastic.dev/elastic/docs-content/pull/4236/manage-data/data-store/data-streams/run-downsampling)