# Advice on cluster setup and config
**URL:** https://discuss.elastic.co/t/advice-on-cluster-setup-and-config/7076
**Category:** Elasticsearch
**Created:** [March 20, 2012, 8:09pm UTC](https://discuss.elastic.co/t/advice-on-cluster-setup-and-config/7076 "2012-03-20T20:09:37Z")
**Posts on this page:** 2
**Page:** 1
### Author:  [@sborar](https://discuss.elastic.co/u/sborar)
#### Post date: [March 20, 2012, 8:09pm UTC](https://discuss.elastic.co/t/advice-on-cluster-setup-and-config/7076/1 "2012-03-20T20:09:37Z")
I am using a 12 node VM cluster . My Index size is about 200GB and currently I have 10 shards with 1 replica on a local gateway. I am also using 1 VM just as master with no data for coordination. I have 16GB RAM available per VM.I would like to improve performance of my ES so that I can serve about 25M queries a day. Currently I am using indices.memory.index\_buffer\_size: 8gb . Would increasing this help ?
Can anyone recommend a setup that would give me a quick performance boost.
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [July 6, 2017, 3:35am UTC](https://discuss.elastic.co/t/advice-on-cluster-setup-and-config/7076/2 "2017-07-06T03:35:26Z")