brain-dump/grafana-prtg/regex-query.md

Regex Query

If you want to chart out something like disk space for Windows machines, the PRTG Grafana plugin pulls the disk serial, as separate sensors each.

To query all of your Windows disk space sensors (from a Group) at once, you can set the following (head to the Query window):

Field	Value to Use
Query Mode	Metrics
Group	Windows (for example)
Host	*
Sensor	/Disk Free: C\:\\ Label\: Serial Number */
Channel	Free Space

Note that special characters have to be escaped, else the regex won't parse correctly.

Result: