# System diskio positive selection

**URL:** <https://discuss.elastic.co/t/system-diskio-positive-selection/115536>\
**Category:** Beats\
**Tags:** metricbeat\
**Created:** [January 15, 2018, 12:07pm UTC](https://discuss.elastic.co/t/system-diskio-positive-selection/115536 "2018-01-15T12:07:53Z")\
**Posts on this page:** 5\
**Page:** 1

<div class="post-metadata">

**Author:** ![stefws](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/stefws/32/6442_2.png) [@stefws](https://discuss.elastic.co/u/stefws)\
**Post date:** [January 15, 2018, 12:07pm UTC](https://discuss.elastic.co/t/system-diskio-positive-selection/115536/1 "2018-01-15T12:07:53Z")

</div>

Wondering if it's possible to config system.diskio to only sample selected devices rather than all 'mounted disks' a bit like filesystem.ignore\_types?

filters.drop\_event.regexp is ImHO a negative list, I'll rather do a positive list as well as saving the sampling for only later to drop events.  
As our VE hypervisor nodes seems to list all virtual guests lvm devices and I'll rather sample such from within the guest VMs than on whatever random hypervisor such execute on.

---

<div class="post-metadata">

**Author:** ![ruflin](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/ruflin/32/3116_2.png) [@ruflin](https://discuss.elastic.co/u/ruflin)\
**Post date:** [January 16, 2018, 1:48am UTC](https://discuss.elastic.co/t/system-diskio-positive-selection/115536/2 "2018-01-16T01:48:46Z")

</div>

We don't support such a feature yet but I definitively think it's a valid request. Could you open a feature request on Github for this and share a bit more details on how your "preffered" config would look like?

---

<div class="post-metadata">

**Author:** ![stefws](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/stefws/32/6442_2.png) [@stefws](https://discuss.elastic.co/u/stefws)\
**Post date:** [January 16, 2018, 10:23am UTC](https://discuss.elastic.co/t/system-diskio-positive-selection/115536/3 "2018-01-16T10:23:39Z")

</div>

[Github RFE](https://github.com/elastic/beats/issues/6083)

I was thinking maybe something like and option for diskio like:

diskio.name\_match\_regexp: '^(dm-|vd)'

to make diskio only collectd and submit data for device names matching such regexp

---

<div class="post-metadata">

**Author:** ![ruflin](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/ruflin/32/3116_2.png) [@ruflin](https://discuss.elastic.co/u/ruflin)\
**Post date:** [January 17, 2018, 12:48am UTC](https://discuss.elastic.co/t/system-diskio-positive-selection/115536/4 "2018-01-17T00:48:52Z")

</div>

For reference, here is the feature request: [https://github.com/elastic/beats/issues/6083](https://github.com/elastic/beats/issues/6083)

---

<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:** [February 14, 2018, 12:49am UTC](https://discuss.elastic.co/t/system-diskio-positive-selection/115536/5 "2018-02-14T00:49:01Z")

</div>

This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.