Suggestions needed for VMWare Guest OS'es

[Esben Bach]

Steve Shipway wrote:
>> As we are currently consolidating hosts to VMWare i need some way to
>> define reasonable parent/child relations ships in Nagios as well as
>> defining host dependencies. 
>>     
>
> This is a really awkward one.
>
> What we do here is to first define the guests as individual hosts for
> monitoring, although we don't monitor CPU or Memory on them as the
> standard plugins don't give meaningful data under vmware.
>
> Next we're using the check_esx2 plugin on the servers in the farm which
> will alert for excessing virtual CPU, Ready, and Memory usage.
>
> Finally, we run a script regularly (daily) which probes the vmware
> server and reconfigured the parent/child relationships for the vhosts vs
> the esx servers.  Not ideal - particularly when you have automigration
> enabled - but better than nothing. 
>
> Now we're going to ESX3 I'm considering defining a dummy object in
> Nagios for the whole ESX farm.  The guests become children of the ESX
> Farm object, and the ESX farm object is a child of *all* the ESX
> servers.  The ESX farm host check is defined using check_summary over
> the ESX servers, and contains another check_summary check for its only
> service, although it could also hold the SNMP traps from the
> VirtualCentre server (we have this as a separate Nagios object).  This
> setup will make more sense under ESX3, there the VC can automatically
> restart a guest on a new ESX server if the ESX server currently hosting
> it goes down.
>   
Thanks, i think ill try creating a dummy object, i was not aware of the 
check_summary plugin, but it seems reasonable to rely on that for the 
farm status.

--
Esben


> Steve
>
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