# Elasticsearch Cluster for distributed mode **URL:** \ **Category:** Elasticsearch\ **Created:** [August 26, 2015, 10:01pm UTC](https://discuss.elastic.co/t/elasticsearch-cluster-for-distributed-mode/28143 "2015-08-26T22:01:53Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![sivapuvvada](https://avatars.discourse-cdn.com/v4/letter/s/c0e974/32.png) [@sivapuvvada](https://discuss.elastic.co/u/sivapuvvada)\ **Post date:** [August 26, 2015, 10:01pm UTC](https://discuss.elastic.co/t/elasticsearch-cluster-for-distributed-mode/28143/1 "2015-08-26T22:01:53Z")
I would like to setup an elastic cluster for 200 GB data per day with replication factor 2 and 1 month data retention period .. but my disk space is having only 1TB maximum per instance .. Could you please provide any suggestions on how many nodes , indices and shards need to configure . ---
**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\ **Post date:** [August 27, 2015, 1:40am UTC](https://discuss.elastic.co/t/elasticsearch-cluster-for-distributed-mode/28143/2 "2015-08-27T01:40:59Z")
The maths there is pretty easy. 200 \* 2 \* 30 = 12000GB = 12TB. So 12 nodes, but you probably want a few more cause otherwise these will be at 100% capacity, which won't work. ---
**Author:** ![sivapuvvada](https://avatars.discourse-cdn.com/v4/letter/s/c0e974/32.png) [@sivapuvvada](https://discuss.elastic.co/u/sivapuvvada)\ **Post date:** [August 27, 2015, 9:47pm UTC](https://discuss.elastic.co/t/elasticsearch-cluster-for-distributed-mode/28143/3 "2015-08-27T21:47:56Z")
Hi Warkolm , Thank you for your reply . How much RAM and CPU we required for each node ? Also how much IOPS we need per node ? ---
**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\ **Post date:** [August 27, 2015, 9:56pm UTC](https://discuss.elastic.co/t/elasticsearch-cluster-for-distributed-mode/28143/4 "2015-08-27T21:56:06Z")
That's harder to answer, you need to start up a node with that amount of disk and see how much memory a TB of data uses. ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 5, 2017, 11:53pm UTC](https://discuss.elastic.co/t/elasticsearch-cluster-for-distributed-mode/28143/5 "2017-07-05T23:53:25Z")