# How much disk space should be in available to get a better elasticsearch cluster performance?
**URL:** https://discuss.elastic.co/t/how-much-disk-space-should-be-in-available-to-get-a-better-elasticsearch-cluster-performance/139226
**Category:** Elasticsearch
**Created:** [July 9, 2018, 6:55pm UTC](https://discuss.elastic.co/t/how-much-disk-space-should-be-in-available-to-get-a-better-elasticsearch-cluster-performance/139226 "2018-07-09T18:55:00Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@clash\_of\_clanss](https://discuss.elastic.co/u/clash_of_clanss)
#### Post date: [July 9, 2018, 6:55pm UTC](https://discuss.elastic.co/t/how-much-disk-space-should-be-in-available-to-get-a-better-elasticsearch-cluster-performance/139226/1 "2018-07-09T18:55:00Z")
Hi,
I have one master node (150Gb) and two data nodes (2\* 110 GB) in my elasticsearch cluster. And I would like to know how much free disk space I have to maintain to perform a better elasticsearch performance like increasing searching speed. or should I decrease the master node capacity when comparing to data node capacity?
Thanks,
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### Author:  [@warkolm](https://discuss.elastic.co/u/warkolm)
#### Post date: [July 10, 2018, 2:48am UTC](https://discuss.elastic.co/t/how-much-disk-space-should-be-in-available-to-get-a-better-elasticsearch-cluster-performance/139226/2 "2018-07-10T02:48:00Z")
Having extra disk space will not make Elasticsearch faster. Well, maybe if you are on SSDs but that's a whole other discussion.
If you are having problems, it might be better if you can explain them instead.
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### Author:  [@clash\_of\_clanss](https://discuss.elastic.co/u/clash_of_clanss)
#### Post date: [July 10, 2018, 7:29am UTC](https://discuss.elastic.co/t/how-much-disk-space-should-be-in-available-to-get-a-better-elasticsearch-cluster-performance/139226/3 "2018-07-10T07:29:09Z")
I have to store 300GB of data per day and I like to store all those logs in 30 days in elasticsearch cluster, so how to choose how many master nodes do I need and what capacity do I choose for master nodes as well as data nodes. I know that data nodes only storing data and master node maintaining them. I would like to know whether I should increase the master nodes or data nodes?
Thanks,
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### Author:  [@dadoonet](https://discuss.elastic.co/u/dadoonet)
#### Post date: [July 10, 2018, 7:43am UTC](https://discuss.elastic.co/t/how-much-disk-space-should-be-in-available-to-get-a-better-elasticsearch-cluster-performance/139226/4 "2018-07-10T07:43:49Z")
May I suggest you look at the following resources about sizing:
[https://www.elastic.co/elasticon/conf/2016/sf/quantitative-cluster-sizing](https://www.elastic.co/elasticon/conf/2016/sf/quantitative-cluster-sizing)
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [August 7, 2018, 7:43am UTC](https://discuss.elastic.co/t/how-much-disk-space-should-be-in-available-to-get-a-better-elasticsearch-cluster-performance/139226/5 "2018-08-07T07:43:55Z")
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