Help on check_disk using the -p option.

[McCann, Brian]

I don't believe you can do that, no.  You may be able to accomplish
something similar using a service group though.  I don't have much of a
need for them at the moment, so I wouldn't be able to help you much with
them, but the documentation on them is fairly straightforward, and I'm
sure there are plenty of other people on this list that could help you
with them if you need it. :) 

--Brian

-----Original Message-----
From: Mukarram Syed [mailto:muksyed at yahoo.com] 
Sent: Wednesday, April 06, 2005 15:25
To: McCann, Brian; Nagios-Mailing-List
Subject: RE: [Nagios-users] Help on check_disk using the -p option.

Brian,
Is it possible to have multiple check_command for a single
service_description?
For example:

define service{
     service_description     Disks
     check_command        check_nrpe!check_disk1
     check_command        check_nrpe!check_disk2
    }

This is only an example, I have tried this but it only takes the
check_command for the last disk in the check_command listing (in this
case it is disk2).

I have tried other options like:
define service{
     service_description     Disks
     check_command        check_nrpe!check_disk1 \
                          check_nrpe!check_disk2
    }

But this does not work.

What you suggested is currently working, but I would prefer to have all
the disks in one service_description.
Any suggestions would be helpful.
thanks for your help indeed.
-Mukarram.

--- "McCann, Brian" <bmccann at andmore.com> wrote:

> Close...but not quite.  You don't need multiple check_disk commands in

> your libexec directory.  Those commands are executed when you are 
> checking stuff on the local host only.  Since you are checking a 
> remote host via nrpe, you don't need them.  Further, just so you 
> understand this, the command the OS calls has nothing do to with what 
> it is called in Nagios.  Here is an example from one of my hosts (some

> stuff left out to make it short, important bits are there):
> 
> Service definitions on the Nagios server:
> define service{
>    service_description     /
>    check_command        check_nrpe!check_disk1
>    }
> define service{
>    service_description     /tmp
>    check_command        check_nrpe!check_disk2
>    }
> 
> Config lines in nrpe.cfg on the target host
>
command[check_disk1]=/usr/local/libexec/netsaint/check_disk
> -w 20 -c 10
> -p /
>
command[check_disk2]=/usr/local/libexec/netsaint/check_disk
> -w 20 -c 10
> -p /tmp
> 
> What this equates to, is the Nagios server runs the check_nrpe 
> command, giving it "check_disk1" as check to run on the remote host.  
> The remote host sees that string, goes through it's nrpe.cfg file, 
> sees that
> check_disk1 runs a certain command, runs it, then returns the results.
> 
> Hope that clears things up a bit.  You were close though....very 
> close.
> :)
> 
> --Brian
> 
> 
> -----Original Message-----
> From: Mukarram Syed [mailto:muksyed at yahoo.com]
> Sent: Wednesday, April 06, 2005 12:59
> To: McCann, Brian; Nagios-Mailing-List
> Subject: RE: [Nagios-users] Help on check_disk using the -p option.
> 
> Hmm, interesting...
> So in my server: in the $NAGIOSHOME/libexec
> directory:
> cp check_disk check_disk_sda1
> cp check_disk check_disk_sda2
> cp check_disk check_disk_sda3
> ....4
> ....5
> cp check_disk check_disk_sda6
> 
> then in the servers services.cfg:
> 
> # Service definition
> define service{
>         use                            
> generic-service         ; Name of service template
> to
> use
>         hostgroup_name                 
> computer-distopias
>         service_description             Disk1
>         is_volatile                     0
>         check_period                    24x7
>         max_check_attempts              3
>         normal_check_interval           5
>         retry_check_interval            1
>         contact_groups                  unix-team
>         notification_interval           240
>         notification_period             24x7
>         notification_options            w,c,r
>         check_command                  
> check_nrpe!check_disk_sda1
>         }
> same for the rest of the 5 disks
> with:
> service_description             Disk2
> check_command                  
> check_nrpe!check_disk_sda2
> 
> ....
> ....
> 
> service_description             Disk6
> check_command                  
> check_nrpe!check_disk_sda6
> 
> On the clients nrpe.cfg:
> 
> # sda
>
command[check_disk_sda1]=/usr/local/etc/nagios/libexec/check_disk_sda1
> -w 10% -c 5% -p /dev/sda1
>
command[check_disk_sda2]=/usr/local/etc/nagios/libexec/check_disk_sda2
> -w 10% -c 5% -p /dev/sda2
>
command[check_disk_sda3]=/usr/local/etc/nagios/libexec/check_disk_sda3
> -w 10% -c 5% -p /dev/sda3
>
command[check_disk_sda4]=/usr/local/etc/nagios/libexec/check_disk_sda4
> -w 10% -c 5% -p /dev/sda4
>
command[check_disk_sda5]=/usr/local/etc/nagios/libexec/check_disk_sda5
> -w 10% -c 5% -p /dev/sda5
>
command[check_disk_sda6]=/usr/local/etc/nagios/libexec/check_disk_sda6
> -w 10% -c 5% -p /dev/sda6
> 
> Is this what you mean, in detail?
> Will this work.
> Thanks for your response.
> 
> 
> -Mukarram.
> 
> 
> --- "McCann, Brian" <bmccann at andmore.com> wrote:
> 
> > In the nrpe config, you need to name each of your
> commands
> > differently.
> > For example, don't use "check_disk" for them all. 
> > Use "check_disk1",
> > "check_disk2", or whatever convention you want to
> follow.  On the
> > newer systems I'm building, I use
> "check_disk_mlxd0s1_a",
> > "check_disk"mlxd0s1_d" for example (I'm running
> FreeBSD, so if you are
> 
> > unfamiliar with it, "mlxd0" is the device, "s1"
> and "a" is the slice
> > and
> > partition.)
> > 
> > Hope that helps,
> > --Brian
> > 
> > -----Original Message-----
> > From: nagios-users-admin at lists.sourceforge.net
> > [mailto:nagios-users-admin at lists.sourceforge.net]
> On Behalf Of
> > Mukarram Syed
> > Sent: Wednesday, April 06, 2005 12:33
> > To: nagios-users at lists.sourceforge.net
> > Subject: [Nagios-users] Help on check_disk using
> the -p option.
> > 
> > 
> > Hi Nagios gurus.
> > 
> > Have a problem using check_disk with the -p
> option.
> > When I use the check_disk command in the nrpe.cfg file on the client

> > as shown below:
> > 
> >
>
command[check_disk]=/usr/local/etc/nagios/libexec/check_disk
> > -w 10% -c 5% -p /dev/sda[1-6]
> > 
> > and when I run the check_disk command from the nagios
> > server:
> > 
> > # /usr/local/etc/nagios/libexec/check_nrpe -H pegasus -c check_disk 
> > I get the output as:
> > 
> > DISK OK [74748 kB (77%) free on /dev/sda1]
> > 
> > It does not show the rest of the partitions (2 through 6).  It only 
> > takes sda1.
> > Anything else I may be missing on this.
> > 
> > I tried to specify individual disk partitons like
> > so:
> > # Disk Checking:
> > 
> > # sda
> >
>
command[check_disk]=/usr/local/etc/nagios/libexec/check_disk
> > -w 10% -c 5% -p /dev/sda1
> >
>
command[check_disk]=/usr/local/etc/nagios/libexec/check_disk
> > -w 10% -c 5% -p /dev/sda2
> >
>
command[check_disk]=/usr/local/etc/nagios/libexec/check_disk
> > -w 10% -c 5% -p /dev/sda3
> >
>
command[check_disk]=/usr/local/etc/nagios/libexec/check_disk
> 
=== message truncated ===


Mukarram Syed
muksyed at yahoo.com


		
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