# Which part of cluster state will be written to disk?
**URL:** https://discuss.elastic.co/t/which-part-of-cluster-state-will-be-written-to-disk/46618
**Category:** Elasticsearch
**Created:** [April 7, 2016, 1:46am UTC](https://discuss.elastic.co/t/which-part-of-cluster-state-will-be-written-to-disk/46618 "2016-04-07T01:46:57Z")
**Posts on this page:** 4
**Page:** 1
### Author:  [@makeyang](https://discuss.elastic.co/u/makeyang)
#### Post date: [April 7, 2016, 1:46am UTC](https://discuss.elastic.co/t/which-part-of-cluster-state-will-be-written-to-disk/46618/1 "2016-04-07T01:46:57Z")
cluster state contains many parts:
version
routingtable
nodes
metadata
blocks
customs
clusterName
routingNodes
settingsFilter
status
I only find that metadata in dsik. so my question is: are other parts be written to disk or not? if yes, where to find them? if no, why?
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### Author:  [@makeyang](https://discuss.elastic.co/u/makeyang)
#### Post date: [April 7, 2016, 10:07am UTC](https://discuss.elastic.co/t/which-part-of-cluster-state-will-be-written-to-disk/46618/2 "2016-04-07T10:07:40Z")
anyone can help?
I read source code(ES1.7) and met this problem which bothers me a lot.
in my mind, all state part should be written to disk. but turns ont not so based on what I found in code.
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### Author:  [@makeyang](https://discuss.elastic.co/u/makeyang)
#### Post date: [April 8, 2016, 1:29am UTC](https://discuss.elastic.co/t/which-part-of-cluster-state-will-be-written-to-disk/46618/3 "2016-04-08T01:29:41Z")
can I get answer for serious question like this in the forum?
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### Author:  [@system](https://discuss.elastic.co/u/system)
#### Post date: [July 5, 2017, 11:01pm UTC](https://discuss.elastic.co/t/which-part-of-cluster-state-will-be-written-to-disk/46618/4 "2017-07-05T23:01:20Z")