# Disk usage problem?

**URL:** <https://discuss.elastic.co/t/disk-usage-problem/71981>\
**Category:** Elasticsearch\
**Created:** [January 18, 2017, 10:48am UTC](https://discuss.elastic.co/t/disk-usage-problem/71981 "2017-01-18T10:48:08Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![wrkilu](https://avatars.discourse-cdn.com/v4/letter/w/977dab/32.png) [@wrkilu](https://discuss.elastic.co/u/wrkilu)\
**Post date:** [January 18, 2017, 10:48am UTC](https://discuss.elastic.co/t/disk-usage-problem/71981/1 "2017-01-18T10:48:08Z")

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Hi,

I have cluster with 4 nodes: 2 data, 1 master and 1 coordinating only:

> # curl -XGET localhost:9200/\_cat/nodes?v  
> host ip heap.percent ram.percent load node.role master name  
> 10.209.3.135 10.209.3.135 14 49 0.18 d - es3.kibana.htp.iadm  
> 10.209.3.136 10.209.3.136 2 54 0.11 - - kibana.htp.iadm  
> 10.209.3.133 10.209.3.133 16 50 0.09 d - es2.kibana.htp.iadm  
> 10.209.3.134 10.209.3.134 13 39 0.00 - \* es1.kibana.htp.iadm

And I would like to check disk space used, so I found command like this:

> # curl -XGET localhost:9200/\_cat/allocation?v  
> shards disk.indices disk.used disk.avail disk.total disk.percent host ip node  
> 6 91.6mb 3.1gb 4.8gb 7.9gb 39 10.209.3.135 10.209.3.135 es3.kibana.htp.iadm  
> 6 90.9mb 3.2gb 4.7gb 7.9gb 40 10.209.3.133 10.209.3.133 es2.kibana.htp.iadm

But as you can see it shows only usage for data nodes - without master node, why ? Why it doesn't show much space is used on master node ?

Also when I enter to Kopf interface I see on main dashboard only two data nodes (without master) , why ? Although on top in this dashboard it shows number of nodes: 4.

wrkilu

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**Author:** ![JKhondhu](https://avatars.discourse-cdn.com/v4/letter/j/ed655f/32.png) [@JKhondhu](https://discuss.elastic.co/u/JKhondhu)\
**Post date:** [January 18, 2017, 11:29am UTC](https://discuss.elastic.co/t/disk-usage-problem/71981/2 "2017-01-18T11:29:11Z")

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Is this a disk usage problem? 🙂  
Allocation provides a snapshot of how many shards are allocated to each data node and how much disk space they are using. Reference: [https://www.elastic.co/guide/en/elasticsearch/reference/current/cat-allocation.html](https://www.elastic.co/guide/en/elasticsearch/reference/current/cat-allocation.html)

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<div class="post-metadata">

**Author:** ![wrkilu](https://avatars.discourse-cdn.com/v4/letter/w/977dab/32.png) [@wrkilu](https://discuss.elastic.co/u/wrkilu)\
**Post date:** [January 18, 2017, 11:48am UTC](https://discuss.elastic.co/t/disk-usage-problem/71981/3 "2017-01-18T11:48:53Z")

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Yeah, maybe I should write another title like "displaying disk usage" or something else - doesn't matter.

Do you have answers for my main questions ?

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**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [February 15, 2017, 11:49am UTC](https://discuss.elastic.co/t/disk-usage-problem/71981/4 "2017-02-15T11:49:46Z")

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