Pretty much ditto that for Hobbit. It provides it's own client, but can
use SNMP. The author monitors over 2000 machines with it (not on z,
though), so he is motivated to make sure that it is light weight (server
and client).
I have a customer hitting over 140 machines with it. The server and a
number of clients are on zSeries, the vast majority are other platforms.
David Boyes wrote:
Any idea what the cost is of operating Nagios, or Hobbit is,
with there relatively low functionality?
Well, depending on what you are monitoring and what you want to
accomplish: they can use SNMP to retrieve values or more extensive
application specific testing, so at minimum, the impact is identical to
a NetSNMP instance, and at worst, they have the impact of a additional
client user of the application being tested multiplied by the number of
applications running on the individual server.
Don't confuse Nagios/Hobbit with the type of detail data collection that
your products do -- both are more health-check monitors than
"performance" monitors, although they can be used for that purpose if
you know what to do with the numbers. Nagios (I'll let Rich speak to
Hobbit) does both retrieving data a la SNMP, and execution of both
predefined and user-supplied test scripts for applications. If what
you're looking for is a "is it running, and are the applications I care
about responding in a reasonable manner", then Nagios and Hobbit are
plenty sufficient.
I haven't heard of
anyone running these on systems with many servers,
Nagios is widely used with discrete servers. The cases I've seen for Z
run the monitoring server on Z, and the monitored servers are a mixture
of virtual and discrete servers.
nor have i
heard of anyone actually running the 892 pound leviathan on
this platform in production anywhere.
Me either, but I also think that the vast majority of IBM field people
don't understand VE enough to even know it's there, let alone how to
sell it or use it.
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Rich Smrcina
VM Assist, Inc.
Main: (262)392-2026
Cell: (414)491-6001
Ans Service: (360)715-2467
rich.smrcina at vmassist.com
Catch the WAVV! http://www.wavv.org
WAVV 2006 - Chattanooga, TN - April 7-11, 2006
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