# Cluster stats "Disk Available" **URL:** \ **Category:** Elasticsearch\ **Created:** [September 3, 2022, 2:48pm UTC](https://discuss.elastic.co/t/cluster-stats-disk-available/313604 "2022-09-03T14:48:00Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![ylasri](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/ylasri/32/86120_2.png) [@ylasri](https://discuss.elastic.co/u/ylasri)\ **Post date:** [September 3, 2022, 2:48pm UTC](https://discuss.elastic.co/t/cluster-stats-disk-available/313604/1 "2022-09-03T14:48:00Z")
Dear, Does any one have an idea on how /\_cluster/stats computes total disk for the whole cluster ? any specific filter behind the scene on `node.roles` ? Bellow is the result of cluster stats API, it show disk space less than the real space disk on all nodes of the cluster. The sum of total disk from node stats is larger that cluster stats result ![image](https://us1.discourse-cdn.com/elastic/original/3X/c/1/c10a38d08e9a1155111fb9cbd4184f449185c434.png) ![image (1)](https://us1.discourse-cdn.com/elastic/original/3X/d/b/db585421b960d109ac0f69a468e940fb5b0c1eb8.png) ---
**Author:** ![leandrojmp](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/leandrojmp/32/107231_2.png) [@leandrojmp](https://discuss.elastic.co/u/leandrojmp)\ **Post date:** [September 3, 2022, 3:59pm UTC](https://discuss.elastic.co/t/cluster-stats-disk-available/313604/2 "2022-09-03T15:59:13Z")
What is the difference? Converting the value in bytes to TB matches the information. example in python: ```auto Python 3.10.4 (main, Jun 29 2022, 12:14:53) [GCC 11.2.0] on linux Type "help", "copyright", "credits" or "license" for more information. >>> total_in_bytes = 40673342521344 >>> available_in_bytes = 38623244267520 >>> total_tb = total_in_bytes / 1024 / 1024 / 1024 / 1024 >>> available_tb = available_in_bytes / 1024 / 1024 / 1024 / 1024 >>> >>> print(total_tb) 36.99218952655792 >>> print(available_tb) 35.12763602659106 >>> ``` ---
**Author:** ![ylasri](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/ylasri/32/86120_2.png) [@ylasri](https://discuss.elastic.co/u/ylasri)\ **Post date:** [September 3, 2022, 4:16pm UTC](https://discuss.elastic.co/t/cluster-stats-disk-available/313604/3 "2022-09-03T16:16:35Z")
This is the result of `GET _cat/allocation?v` I have a total of 140TB of disk dispatched on all nodes | disk.indices | disk.used | disk.avail | disk.total | disk.percent | host | ip | node | | --- | --- | --- | --- | --- | --- | --- | --- | | 362.3kb | 419.1gb | 7.7tb | 8.1tb | 5 | hot | ip | es\_node01 | | 347.7kb | 116.4gb | 2.1tb | 2.2tb | 5 | hot | ip | es\_node02 | | 496.4kb | 745gb | 13.7tb | 14.4tb | 5 | hot | ip | es\_node03 | | 5.7mb | 745gb | 13.7tb | 14.4tb | 5 | hot | ip | es\_node04 | | 22.3kb | 97.8gb | 1.7tb | 1.8tb | 5 | hot | ip | es\_node05 | | 1.9mb | 745gb | 13.7tb | 14.4tb | 5 | hot | ip | es\_node06 | | 40.7mb | 419.1gb | 7.7tb | 8.1tb | 5 | hot | ip | es\_node07 | | 19.2kb | 423.7gb | 7.7tb | 8.2tb | 5 | hot | ip | es\_node08 | | 81.9kb | 116.4gb | 2.1tb | 2.2tb | 5 | hot | ip | es\_node09 | | 2.7mb | 116.4gb | 2.1tb | 2.2tb | 5 | hot | ip | es\_node10 | | 40.7mb | 419.1gb | 7.7tb | 8.1tb | 5 | hot | ip | es\_node11 | | 225b | 745gb | 13.7tb | 14.4tb | 5 | hot | ip | es\_node12 | | 27.9kb | 745gb | 13.7tb | 14.4tb | 5 | hot | ip | es\_node13 | | 81.9kb | 745gb | 13.7tb | 14.4tb | 5 | hot | ip | es\_node14 | | 27.9kb | 116.4gb | 2.1tb | 2.2tb | 5 | hot | ip | es\_node15 | | 351.8kb | 419.1gb | 7.7tb | 8.1tb | 5 | hot | ip | es\_node16 | | 329.7kb | 419.1gb | 7.7tb | 8.1tb | 5 | hot | ip | es\_node17 | | 4.8mb | 102.4gb | 1.8tb | 1.9tb | 5 | hot | ip | es\_node18 | ---
**Author:** ![ylasri](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/ylasri/32/86120_2.png) [@ylasri](https://discuss.elastic.co/u/ylasri)\ **Post date:** [September 3, 2022, 4:56pm UTC](https://discuss.elastic.co/t/cluster-stats-disk-available/313604/4 "2022-09-03T16:56:13Z")
Related discussion here [https://discuss.elastic.co/t/cluster-not-reporting-actual-available-space](https://discuss.elastic.co/t/cluster-not-reporting-actual-available-space) ---
**Author:** ![DavidTurner](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/davidturner/32/22453_2.png) [@DavidTurner](https://discuss.elastic.co/u/DavidTurner)\ **Post date:** [September 4, 2022, 9:54am UTC](https://discuss.elastic.co/t/cluster-stats-disk-available/313604/5 "2022-09-04T09:54:33Z")
> [@ylasri](#): > > Related discussion here Does that answer it? ---
**Author:** ![ylasri](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/ylasri/32/86120_2.png) [@ylasri](https://discuss.elastic.co/u/ylasri)\ **Post date:** [September 4, 2022, 10:10am UTC](https://discuss.elastic.co/t/cluster-stats-disk-available/313604/6 "2022-09-04T10:10:38Z")
Yes @DavidTurner I can see also ongoing ticket on github for this problem ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [October 2, 2022, 10:11am UTC](https://discuss.elastic.co/t/cluster-stats-disk-available/313604/7 "2022-10-02T10:11:30Z")
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