[Nagiosplug-help] SNMP checks for Compaq mibs

[Olaf Hoyer]

On Fri, 25 Jun 2004, Mike Feetham wrote:

> I am trying to monitor disk space on some Compaq/HP servers, running various
> Windows platforms.  Since they already have the Compaq Insight SNMP services
> running on them, our corporate policy forbids us from installing any other
> SNMP agents, or MIB updates (like snmp4tpc).
>
> I have created commands using the check_snmp plugin, aiming them at the OIDs
> from the Compaq mibs.
>
> >From what I can find, the Compaq mibs will only show total drive size and
> space used.  What we really need is space free, not space used.  Other than
> writing a script to subtract used space from total space, does anyone have a
> cleaner solution for getting what we want?
>
> Is there an OID I'm missing in the Compaq mibs that has this info?

No.

I have some Proliant with iLO boards here, and they are working quite
nicely.

I use place used up for my calculation, so that 20% free space is 80%
used space, so I write:

define service{
        use                             frontends
        host_name                       foo
        service_description             Disk L:
        check_command
check_snmp!.iso.org.dod.internet.private.enterprises.compaq.cpqHo
stOs.cpqHoComponent.cpqHoFileSys.cpqHoFileSysTable.cpqHoFileSysEntry.cpqHoFileSysPercentSpaceUsed.2!public
!90!95
}

well, you get the idea... warning, when 20% free, critical, when 5%
free...

>
> I know there are dozens of different ways to get the same results, but what
> would other Nagios users suggest is the most efficient and secure way of
> getting this SNMP info?

Use the iLO-boards, when available, and put them in a separate VLAN,
which is dedicated only for management and monitoring purposes.
I am using SNMPv2 without fear, because the iLO-boards and the nagios
station are in a VLAN with private IP, which is not accessible from
anywhere.
(You also should spend a thought of configuring a firewall whether on
the machine, or elsewhere, that is blocking Port 161 on all interfaces
which are not used. Second best way is a dedicated management Ethernet
interface in that box..

HTH
Olaf

-- 
Olaf Hoyer        ohoyer at gaff.hhhr.ision.net
Fuerchterliche Erlebniss geben zu raten,
ob der, welcher sie erlebt, nicht etwas Fuerchterliches ist.
(Nietzsche, Jenseits von Gut und Boese)