# Is it okay to make 7 nodes of cluster in one machine(server)? **URL:** \ **Category:** Elasticsearch\ **Created:** [June 22, 2021, 7:22am UTC](https://discuss.elastic.co/t/is-it-okay-to-make-7-nodes-of-cluster-in-one-machine-server/276614 "2021-06-22T07:22:44Z")\ **Posts on this page:** 12\ **Page:** 1
**Author:** ![lilyyy](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/lilyyy/32/51129_2.png) [@lilyyy](https://discuss.elastic.co/u/lilyyy)\ **Post date:** [June 22, 2021, 7:22am UTC](https://discuss.elastic.co/t/is-it-okay-to-make-7-nodes-of-cluster-in-one-machine-server/276614/1 "2021-06-22T07:22:44Z")
Hello. I am running ELK and this has only one node of cluster on server.(ELK version is 6.8) The indices size per a day is about below 100GB but it's gonna increase. So I need to divide nodes to master node and data node. My plan is 3 master nodes and 4 data nodes and my question is that is it okay to make 7 nodes of cluster in one machine. My server spec is RAM: 768GB and 20 core. Or should I need to make other 6 vm machines for other master and data nodes? please recommend me if you have better way. Thanks!! ---
**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:** [June 22, 2021, 7:41am UTC](https://discuss.elastic.co/t/is-it-okay-to-make-7-nodes-of-cluster-in-one-machine-server/276614/2 "2021-06-22T07:41:02Z")
What sort of storage does the host have? ---
**Author:** ![lilyyy](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/lilyyy/32/51129_2.png) [@lilyyy](https://discuss.elastic.co/u/lilyyy)\ **Post date:** [June 22, 2021, 7:43am UTC](https://discuss.elastic.co/t/is-it-okay-to-make-7-nodes-of-cluster-in-one-machine-server/276614/3 "2021-06-22T07:43:54Z")
> [@warkolm](#): > > What sort of storage does the host have? you mean what kind of hard drives? I have 5 hard disks (C,D,E,F,G) and I am running the ELK on D drive because it has 7TB. ---
**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:** [June 22, 2021, 9:48pm UTC](https://discuss.elastic.co/t/is-it-okay-to-make-7-nodes-of-cluster-in-one-machine-server/276614/4 "2021-06-22T21:48:06Z")
Right, but what sort of storage is that drive. Network, SSD, spinning? ---
**Author:** ![lilyyy](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/lilyyy/32/51129_2.png) [@lilyyy](https://discuss.elastic.co/u/lilyyy)\ **Post date:** [June 23, 2021, 3:08am UTC](https://discuss.elastic.co/t/is-it-okay-to-make-7-nodes-of-cluster-in-one-machine-server/276614/5 "2021-06-23T03:08:36Z")
The drive is SSD. ---
**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:** [June 23, 2021, 3:09am UTC](https://discuss.elastic.co/t/is-it-okay-to-make-7-nodes-of-cluster-in-one-machine-server/276614/6 "2021-06-23T03:09:19Z")
Ok, that should be able to deal with it. ---
**Author:** ![lilyyy](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/lilyyy/32/51129_2.png) [@lilyyy](https://discuss.elastic.co/u/lilyyy)\ **Post date:** [June 23, 2021, 3:12am UTC](https://discuss.elastic.co/t/is-it-okay-to-make-7-nodes-of-cluster-in-one-machine-server/276614/7 "2021-06-23T03:12:11Z")
Thank you so much for your quick reply. By the way, can I add master node and data node while I'm already running the ELK? when i added nodes, there were something wrong. so I think i need to search more but i just want to know in advance. Thanks! ---
**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:** [June 23, 2021, 3:15am UTC](https://discuss.elastic.co/t/is-it-okay-to-make-7-nodes-of-cluster-in-one-machine-server/276614/8 "2021-06-23T03:15:37Z")
It's not clear what you mean by that sorry, can you elaborate? ---
**Author:** ![lilyyy](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/lilyyy/32/51129_2.png) [@lilyyy](https://discuss.elastic.co/u/lilyyy)\ **Post date:** [June 23, 2021, 3:22am UTC](https://discuss.elastic.co/t/is-it-okay-to-make-7-nodes-of-cluster-in-one-machine-server/276614/9 "2021-06-23T03:22:17Z")
Im already running ELK for monitoring network and I only have one master node now. I want to add more node, so yesterday I added master node and data node for test. and then restart the elasticsearch but my kibana index(there are already have visualization and dashboard) was broken. I think kibana index shards were missing. So I was curious i can add more nodes in this situation. ---
**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:** [June 23, 2021, 3:23am UTC](https://discuss.elastic.co/t/is-it-okay-to-make-7-nodes-of-cluster-in-one-machine-server/276614/10 "2021-06-23T03:23:11Z")
You can, yes. If it doesn't work then it'd be best to create a new topic with the process you followed, the config and the logs of the nodes. ---
**Author:** ![lilyyy](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/lilyyy/32/51129_2.png) [@lilyyy](https://discuss.elastic.co/u/lilyyy)\ **Post date:** [June 23, 2021, 3:23am UTC](https://discuss.elastic.co/t/is-it-okay-to-make-7-nodes-of-cluster-in-one-machine-server/276614/11 "2021-06-23T03:23:58Z")
Okay, I got it! Thank you so much!! 🙂 ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [July 21, 2021, 3:24am UTC](https://discuss.elastic.co/t/is-it-okay-to-make-7-nodes-of-cluster-in-one-machine-server/276614/12 "2021-07-21T03:24:00Z")
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