"Virtual" devices in Nagios2

Matthew Macdonald-Wallace lists at truthisfreedom.org.uk
Fri Aug 1 13:59:55 CEST 2008


Hi all,

I'm working on setting up a cluster of systems and I'm trying to
monitor if a switch is dead or not.

Unfortunately, these switches are unmanaged (not even SMTP is
available!) therefore I have had to resort to monitoring the bonded
interfaces on the servers that connect to the switches and configure
the check_bonding.pl script from nagiosexchange to go critical if
either of the interfaces drops.  I am hoping that I can setup a
"virtual" host for the switch based on these checks.

Is there a way within Nagios 2 to base an alert on the outcome of more
than one check?  I want to have an alert fired that the switch is down,
but only if more than one server has that interface off-line at the
same time.

If it's not possible, is there a better way of doing this with the kit
that I have, or do I need to upgrade to managed switches?

TIA,

M.
-- 
Matthew Macdonald-Wallace
matthew at truthisfreedom.org.uk
http://www.truthisfreedom.org.uk

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