# Elastic stack hardware requirements, (look for recommendation) **URL:** \ **Category:** Elasticsearch\ **Created:** [January 14, 2021, 4:08pm UTC](https://discuss.elastic.co/t/elastic-stack-hardware-requirements-look-for-recommendation/261148 "2021-01-14T16:08:01Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![RODRIGO\_P](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/rodrigo_p/32/82252_2.png) [@RODRIGO\_P](https://discuss.elastic.co/u/RODRIGO_P)\ **Post date:** [January 14, 2021, 4:08pm UTC](https://discuss.elastic.co/t/elastic-stack-hardware-requirements-look-for-recommendation/261148/1 "2021-01-14T16:08:02Z")
Hi, I want setting up a cluster and I have these scenarios: - 28 servers generate log per daily; - EPS logs are 300 /s per server; - EPD logs are ~5MM/day; - RAW DATA BYTES is ~ 460BYTES; - Size GB Day ~ 1.2TB; My required retention period is about 30 days. ---
**Author:** ![ylasri](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/ylasri/32/86120_2.png) [@ylasri](https://discuss.elastic.co/u/ylasri)\ **Post date:** [January 14, 2021, 4:24pm UTC](https://discuss.elastic.co/t/elastic-stack-hardware-requirements-look-for-recommendation/261148/2 "2021-01-14T16:24:32Z")
EPS is 300 per host means global EPS is 8400 (300 \* 28) Means also an EPD of 725M and a total daily raw data of 310 GB, why 1.2 TB ? Is my understanding correct ? What's the required retention period ? 30 days , 90 days ... ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [February 11, 2021, 4:24pm UTC](https://discuss.elastic.co/t/elastic-stack-hardware-requirements-look-for-recommendation/261148/3 "2021-02-11T16:24:36Z")
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