Create trigger: "less than 5gb of space on '/' directory"

[getstuk]

I need to know how to create a trigger that tells me if a linux box dips below 5GB of space on the disk. I don't care about the "/boot" or "/tmp" directory, how can I use an "if statement" to exclude these from my trigger?

[getstuk]

anyone? The proper way to do if statements would be helpful.

[legoman]

You could get an idea on how to do this by going to Configuration->Templates->Template OS Linux->Discovery Rules, then "Trigger prototypes" in the "Mounted filesystem discovery" row. In those prototypes you should see a "Free disk space is less than 20% on volume {#FSNAME}" prototype. Instead of creating a trigger prototype, just create a regular trigger, hardcoding the FS name where the "{#FSNAME}" is.

Personally, I would opt to link the host to a template and disable the discovered filesystems I didn't want to monitor, but I'm not sure how that would affect your current monitoring.

Good luck!

[aib]

Trigger:

Name - Less than 5 GB
Expression - {SERVER1:vfs.fs.size[/,free].last(0)}<5368709120