Changing thresholds for disk usage
In this recipe, we'll configure the Nagios Core server to check its own disk usage, and to flag a WARNING or CRITICAL state depending on how little free space is left on the disk. We'll accomplish this by adding a new service to the already defined localhost called DISK, which will run the check_local_disk command to examine the state of mounted volumes on the server.
Because burgeoning disk usage can creep up on any system administrator, and because of the dire effect it can have when a disk suddenly fills completely without any warning, this is amongst the more important things to monitor in any given network.
For simplicity, we'll demonstrate this only for the monitoring server itself, as a host called localhost ...
Get Nagios Core Administration Cookbook now with the O’Reilly learning platform.
O’Reilly members experience books, live events, courses curated by job role, and more from O’Reilly and nearly 200 top publishers.
