# Elk requirement **URL:** \ **Category:** Elasticsearch\ **Created:** [April 7, 2021, 10:28am UTC](https://discuss.elastic.co/t/elk-requirement/269441 "2021-04-07T10:28:51Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![dddddddddddddddd](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dddddddddddddddd/32/86746_2.png) [@dddddddddddddddd](https://discuss.elastic.co/u/dddddddddddddddd)\ **Post date:** [April 7, 2021, 10:28am UTC](https://discuss.elastic.co/t/elk-requirement/269441/1 "2021-04-07T10:28:52Z")
hi , i hope this message finds you well, so How much cpu(GHz) /memory/storage at least I need to use ELK stack . regards. ---
**Author:** ![Christian\_Dahlqvist](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christian_dahlqvist/32/4617_2.png) [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)\ **Post date:** [April 7, 2021, 10:32am UTC](https://discuss.elastic.co/t/elk-requirement/269441/2 "2021-04-07T10:32:53Z")
That depends entirely on your use case and expected data volumes, so you will need to provide a lot more information for anyone to be able to help you with this. ---
**Author:** ![dddddddddddddddd](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dddddddddddddddd/32/86746_2.png) [@dddddddddddddddd](https://discuss.elastic.co/u/dddddddddddddddd)\ **Post date:** [April 7, 2021, 10:36am UTC](https://discuss.elastic.co/t/elk-requirement/269441/3 "2021-04-07T10:36:36Z")
thanks for your reply in this project I want to guarantee the high availibility in elasticsearch and the number of machine tha's I want to use is 20 regards ---
**Author:** ![Christian\_Dahlqvist](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/christian_dahlqvist/32/4617_2.png) [@Christian\_Dahlqvist](https://discuss.elastic.co/u/Christian_Dahlqvist)\ **Post date:** [April 7, 2021, 10:37am UTC](https://discuss.elastic.co/t/elk-requirement/269441/4 "2021-04-07T10:37:55Z")
That is not nearly enough detail. Please elaborate. ---
**Author:** ![dddddddddddddddd](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dddddddddddddddd/32/86746_2.png) [@dddddddddddddddd](https://discuss.elastic.co/u/dddddddddddddddd)\ **Post date:** [April 7, 2021, 10:47am UTC](https://discuss.elastic.co/t/elk-requirement/269441/5 "2021-04-07T10:47:21Z")
I want to install Elk stack on a VM so my question is how much CPU I need for starting using elk stack ---
**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\ **Post date:** [April 7, 2021, 1:10pm UTC](https://discuss.elastic.co/t/elk-requirement/269441/6 "2021-04-07T13:10:21Z")
> how much CPU I need for starting using elk stack I know some people running Elasticsearch from a Raspberry Pi. The good thing with Elasticsearch is that you can start with low resources, let say 1 CPU, 2gb of RAM, few gb of disk and if needed scale this by: - scaling vertically (add more CPU, more RAM) when needed - scaling horizontally (add more nodes to the cluster) So unless you provide a lot of details about your use case, what type of data, the size of the data, the retention you want, the replication you want, it will be hard to tell more. May I suggest you look at the following resources about sizing: > **[Quantitative Cluster Sizing](https://www.elastic.co/elasticon/conf/2016/sf/quantitative-cluster-sizing)** > **[How many shards should I have in my Elasticsearch cluster?](https://www.elastic.co/blog/how-many-shards-should-i-have-in-my-elasticsearch-cluster)** > **[Managing your black Friday logs - CloudConf.IT](https://www.slideshare.net/dadoonet/managing-your-black-friday-logs-cloudconfit-93309899)** > > Managing your black Friday logs - CloudConf.IT - Download as a PDF or view online for free [![](https://us1.discourse-cdn.com/elastic/original/3X/7/c/7c2edebd5bac194c58a5df87ede6872cb41d61a8.jpeg "Managing your Black Friday Logs, Pablo Musa, Elastic, TechSummit Amsterdam") ](https://www.youtube.com/watch?v=ilP7tG6tabI) And [Using Rally to Get Your Elasticsearch Cluster Size Right | Elastic Videos](https://www.elastic.co/webinars/using-rally-to-get-your-elasticsearch-cluster-size-right) ---
**Author:** ![dddddddddddddddd](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dddddddddddddddd/32/86746_2.png) [@dddddddddddddddd](https://discuss.elastic.co/u/dddddddddddddddd)\ **Post date:** [April 7, 2021, 1:27pm UTC](https://discuss.elastic.co/t/elk-requirement/269441/7 "2021-04-07T13:27:43Z")
thanks for your reply I want to guarantee disaster recovery so I need 3 nodes and the data rentention is 1 year . in addition I want to install elasticsearch logstash and kibana in the same VM and in other machines I want only install elasticsearch node for guarantee the disaster recovery so how much CPU (GHz) I need for using elk on VM . regards . ---
**Author:** ![dadoonet](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/dadoonet/32/137187_2.png) [@dadoonet](https://discuss.elastic.co/u/dadoonet)\ **Post date:** [April 7, 2021, 1:33pm UTC](https://discuss.elastic.co/t/elk-requirement/269441/8 "2021-04-07T13:33:51Z")
> [@dddddddddddddddd](#): > > in addition I want to install elasticsearch logstash and kibana in the same VM Please try to separate each one in each own VM. > [@dddddddddddddddd](#): > > so how much CPU (GHz) I need for using elk on VM . It depends ™ . ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [May 5, 2021, 1:34pm UTC](https://discuss.elastic.co/t/elk-requirement/269441/9 "2021-05-05T13:34:35Z")
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