nagios scalability calculations?

[Tom Welsh]

Hi All,

This question is aimed squarely at the people with their heads under the
bonnet of nagios or the people that have rolled out large enterprise
Nagios installations

Following on from an earlier post by Mario about what system to use to
scan his 52,500 services, I was wondering if anyone has a mathematical
equation for working out how long it takes nagios to process checks and
alerts from the queue.

For example taking Mario's example 3500 oracle databases with 15 SNMP
checks on each. How long can I expect nagios to take and process these
requests? 

With this information how would I then work out the optimal hardware to
deploy such a system on. 


And as a final note. 

Does the Nagios architecture enable it to process checks any quicker
than Netsaint? ( just wondering, you know, useless bit of info that I
may be able to use some time in my short life 8-} ) 

Just consider this home work, there may be an exam later :)

Looking forward to any replies

Cheers

Tom Welsh
twelsh at square-box.com




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