# How many number of data nodes to start with for log analytics

**URL:** <https://discuss.elastic.co/t/how-many-number-of-data-nodes-to-start-with-for-log-analytics/221309>\
**Category:** Elasticsearch\
**Created:** [February 27, 2020, 6:53pm UTC](https://discuss.elastic.co/t/how-many-number-of-data-nodes-to-start-with-for-log-analytics/221309 "2020-02-27T18:53:53Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![gururjrk](https://avatars.discourse-cdn.com/v4/letter/g/43a26b/32.png) [@gururjrk](https://discuss.elastic.co/u/gururjrk)\
**Post date:** [February 27, 2020, 6:53pm UTC](https://discuss.elastic.co/t/how-many-number-of-data-nodes-to-start-with-for-log-analytics/221309/1 "2020-02-27T18:53:53Z")

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Hi,

For log analytics I am going to store log data from various application in elasticsearch as time series indices.  
The estimated total data growth is maximum 10TB in 1 year considering the data retention period. With 5 master shards and 3 replica shards the total size comes to 40TB. For 40TB I am considering 20 data nodes (with 2TB per node)  
My Question is with how many number of data nodes I should start in the beginning. Can I start with 10 data nodes in the initial setup and add additional data nodes as and when the data grows ?  
Appreciate your suggestion.

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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 26, 2020, 7:02pm UTC](https://discuss.elastic.co/t/how-many-number-of-data-nodes-to-start-with-for-log-analytics/221309/2 "2020-03-26T19:02:17Z")

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Closed on March 26, 2020, 7:02pm UTC

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