Merged disk checks

Gerald gcoon at inch.com
Tue Dec 17 18:26:25 CET 2002


I have to agree with the disadvantages. We worked around it by going to
check_snmp and just hitting the disk partitions over snmp. This allowed us
to only have to install snmp on the servers (some already had it) and we
can monitor more than the plugins have come up with.

I don't mean to offend anyone by this, but snmp has also undergone much
more scrutiny for security issues than any of the client side
netsaint/nagios plugins have.

Setup a read only user. Season with tcpwrappers to taste and all of the
thresholds can be set from the netsaint config. I haven't done it yet, but
I intend to do the mrtg/apan integration into netsaint and I believe the
check_snmp_disk that I've setup will graph more information.

I posted to the list a while back about how I setup the check disk if you
want to search for it.

Good Luck,

Gerald

On Tue, 17 Dec 2002, Carroll, Jim P [Contractor] wrote:

> Markus,
>
> I feel your pain; been there, done that, went back to the verbose approach.
> Yes, there's a way of doing it.  Things to consider:
>
> Advantages:
>
> - saves you lots of manual configuring
>
> Disadvantages:
>
> - you set the thresholds once for a given host, and they apply to all
> partitions (which can be less than desireable if you're running, say, an
> Oracle database server, where in some cases the data files consume (nearly)
> all of the available space)
> - there's a limit to the length of the message (I believe it's 1K) which is
> sent back to Nagios, so you'll end up lacking details on *all* of the
> partitions
> - looking at reports such as the Status Grid, you won't be able to see at a
> glance what all the partitions are currently at
>
> Try it out, see if you like the 'lite' approach:
>
>    ./check_disk -w 10 -c 5
>
> If you decide that the verbose reporting is preferable, you could save
> yourself quite a few keystrokes with these tips:
>
> - use a centralized nrpe.cfg file; distribute it to all the hosts after each
> add/change/delete (don't forget to manage it with RCS/CVS/similar)
> - use templates for each unique disk definition and use those in your config
> files
>
> jc
>
>
> > -----Original Message-----
> > From: Kraus, Markus [mailto:Markus.Kraus.hp at sysde.eads.net]
> > Sent: Tuesday, December 17, 2002 9:47 AM
> > To: 'nagios-users at lists.sourceforge.net'
> > Subject: [Nagios-users] Merged disk checks
> >
> >
> > Hello @,
> >
> > I monitor about 100 servers each with at least 5 Partitions.
> > That makes over
> > all 500 check_disk calls. Isn' t there a plugin which tests
> > all partitions
> > of a system and returns only an over all status?
> >
> > Any help which can be offered is greatly appreciated.
> >
> > Markus
> >
> >
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