Tue, 17 Oct 2006
Check Disk... Checker?
You start off with a couple of partitions. You add a MySQL instance and
put it on a new logical volume. You break its logging out to a different
volume group for performance reasons. You take a snapshot for query
tuning and mount that. You add a chunk of disk for a
short experiment you were going to try... thanks to legacy,
laziness and easy to use LUNs you eventually end up with more mount
points than you know what to do with. And at the worst possible moment
one of them will fill and you'll discover you forgot to add it to Nagios for monitoring. Or you inherit a bundle
of crack fueled servers that have been "evolved" and never gifted with
decent monitoring.
The check_disk_checker.pl script was written to help find mount points that you're not monitoring. It scans through your local Nagios NRPE config files, looks at your current mount points, and complains about any mounted partitions that are not being checked according to the local NRPE configuration files. Of course there is nothing to say that what you have locally is what the remote Nagios is polling but that's outside the scope of this post.
check_disk_checker.pl shells out and grabs a list of all mounted partitions. It then
pulls a list of check-disk lines out of any config files
matching nrpe*.conf or nrpe*.cfg (our local naming scheme) that live
in /etc/nagios. It then extracts the partitions each one checks (it
grabs the value following a -p argument) and complains if it
doesn't find a check for each mounted partition. The script can be run
under Nagios as a plugin or stand-alone for help controlling a legacy
system.
It also plays well with the Linux Check Mounted Disks Nagios Plugin...
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Posted: 2006/10/17 00:04 | /tools/commandline | Permanent link to this entry | This entry + same date
Copyright © 2000-2005 Dean Wilson
