check_disk plugin help

[sma nagios]

I am running the newest version of nagios (v2.0b2) on slackware 10.1 with
plugins v1.4.

I have had most of the simple plugins working ok for weeks now (check_ssh,
check_http, check_imap, ...), yet I am having trouble getting check_disk
to work.  It always returns "DISK OK - free space: / 10687 MB (85%):" no
matter what valid disk I check.  That value (10687 MB) is not correct.  It
returns the same number when I check any disk on any server.  I'm guessing
it's some default number.

I define the command like this:
define command{
        command_name    check_disk
        command_line    $USER1$/check_disk -p $ARG1$ -w $ARG2$ -c $ARG3$
}

And I use the service like this:
define service{
        host_name                       linuxserver
        service_description             /dev/hda2
        check_command                   check_disk!/dev/hda2!10%!5%
        max_check_attempts              5
        normal_check_interval           5
        retry_check_interval            3
        check_period                    24x7
        notification_interval           30
        notification_period             24x7
        contact_groups                  admins
        notification_options            w,u,c,r
}

I'm pretty sure I have to do something at the other end (the server I am
trying to check).  Because you can't just check a certain port to check
the about of space left on disk.  It seem like nagios would have to log
into the server or have some sort of privilege on the remote server.  The
servers I am check are mine, so I have user access to all of them.

I see other people using disk_check successfully, so I know it is possible.
I just can't find any information on how to use it right.

Can someone help me get check_disk to work?
Any advice??

Thanks,
Dustin Patterson
North Carolina State University


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