# Is it bug? Disk Space Available in Hosts is calcualted average disk free

**URL:** <https://discuss.elastic.co/t/is-it-bug-disk-space-available-in-hosts-is-calcualted-average-disk-free/345031>\
**Category:** Metrics\
**Created:** [October 14, 2023, 4:09pm UTC](https://discuss.elastic.co/t/is-it-bug-disk-space-available-in-hosts-is-calcualted-average-disk-free/345031 "2023-10-14T16:09:52Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![oofbird](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/oofbird/32/113541_2.png) [@oofbird](https://discuss.elastic.co/u/oofbird)\
**Post date:** [October 14, 2023, 4:09pm UTC](https://discuss.elastic.co/t/is-it-bug-disk-space-available-in-hosts-is-calcualted-average-disk-free/345031/1 "2023-10-14T16:09:52Z")

</div>

I work with Elasitc 8.10.2.  
And I found Hosts feature in Observability.

But Disk Space Available score is not correct.  
so there are inspect method, i checked it.

Request for Disk Space Available is

```auto
....
   "aggs": {
      "2": {
        "avg": {
          "field": "system.filesystem.free"
        }
....

```

Why are using average aggregation?  
Shouldn't the total amount of available disk space be used?

---

<div class="post-metadata">

**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\
**Post date:** [November 11, 2023, 4:10pm UTC](https://discuss.elastic.co/t/is-it-bug-disk-space-available-in-hosts-is-calcualted-average-disk-free/345031/2 "2023-11-11T16:10:01Z")

</div>

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