# Percona Disk Space displaying NaN

**URL:** <https://forums.percona.com/t/percona-disk-space-displaying-nan/4021>\
**Category:** Percona Monitoring Plugins\
**Created:** [January 28, 2015, 9:23pm UTC](https://forums.percona.com/t/percona-disk-space-displaying-nan/4021 "2015-01-28T21:23:45Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![supmethods](https://avatars.discourse-cdn.com/v4/letter/s/35a633/32.png) [@supmethods](https://forums.percona.com/u/supmethods)\
**Post date:** [January 28, 2015, 9:23pm UTC](https://forums.percona.com/t/percona-disk-space-displaying-nan/4021/1 "2015-01-28T21:23:45Z")

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Hi

I’ve downloaded the Linux template and have managed to get statistics working for all graphs except for disk usage.

I have tried setting the volume as “/dev/vda3” and “vda3” but to no avail. I checked the cacti log and no errors found.

Is there anything else I can look at?

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**Author:** ![weber](https://avatars.discourse-cdn.com/v4/letter/w/da6949/32.png) [@weber](https://forums.percona.com/u/weber)\
**Post date:** [January 30, 2015, 3:41pm UTC](https://forums.percona.com/t/percona-disk-space-displaying-nan/4021/2 "2015-01-30T15:41:10Z")

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For disk usage, it should be a first column from “df” output, see [URL=“[Percona Linux Monitoring Template for Cacti](http://www.percona.com/doc/percona-monitoring-plugins/1.1/cacti/linux-templates.html)”][http://www.percona.com/doc/percona-m...templates.html[/URL]](http://www.percona.com/doc/percona-m...templates.html%5B/URL%5D)