# Elastic cluster hardware estimation **URL:** \ **Category:** Elasticsearch\ **Created:** [May 2, 2018, 1:51pm UTC](https://discuss.elastic.co/t/elastic-cluster-hardware-estimation/130258 "2018-05-02T13:51:43Z")\ **Posts on this page:** 4\ **Page:** 1
**Author:** ![Jacob\_N](https://avatars.discourse-cdn.com/v4/letter/j/ee59a6/32.png) [@Jacob\_N](https://discuss.elastic.co/u/Jacob_N)\ **Post date:** [May 2, 2018, 1:51pm UTC](https://discuss.elastic.co/t/elastic-cluster-hardware-estimation/130258/1 "2018-05-02T13:51:43Z")
Hi, We are interestead on using Elasticsearch in our production servers for indexing JBoss logs. My data estimation is about 26Gb/day every month day, except last month day where the data spikes up to 45Gb/day . Our data retantion period will be 10 days. I also estimate that we wont do more than 50 ~ 70 queries per day. I was thinking a bit about the hardware requirements. The topology will include 3 master nodes with: 16GB of ram 6-8 Core cpu's 350 Gb of HDD I was thinking that since we wont do many queries and we wont retain data for a long time, data nodes may not be necessary. I would like to hear your thoughts and advice ---
**Author:** ![mjunaidmuzammil](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/mjunaidmuzammil/32/56910_2.png) [@mjunaidmuzammil](https://discuss.elastic.co/u/mjunaidmuzammil)\ **Post date:** [May 2, 2018, 2:00pm UTC](https://discuss.elastic.co/t/elastic-cluster-hardware-estimation/130258/2 "2018-05-02T14:00:37Z")
Hi, Are you going to enable replicas for your cluster? The disk requirements appear to be fine, since you have a total of 3 master + data nodes, and data will be distributed across these 3 nodes. You have fairly smaller number of queries, so I believe the above hardware should work in your case. ---
**Author:** ![Jacob\_N](https://avatars.discourse-cdn.com/v4/letter/j/ee59a6/32.png) [@Jacob\_N](https://discuss.elastic.co/u/Jacob_N)\ **Post date:** [May 2, 2018, 2:04pm UTC](https://discuss.elastic.co/t/elastic-cluster-hardware-estimation/130258/3 "2018-05-02T14:04:31Z")
Thank you for your input mjunaidmuzammil. No, my specs so far dont mention any need for replicas. ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [May 30, 2018, 2:07pm UTC](https://discuss.elastic.co/t/elastic-cluster-hardware-estimation/130258/4 "2018-05-30T14:07:23Z")
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