How to monitor Equallogic PS SAN with snmp?

[Marcus]

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Hi Josh,

Josh Wells schrieb:
> I'm wanting to add monitoring of an equallogic PS series SAN to Nagios.
> It is SNMP capable but I don't know much about SNMP. Can someone point
> me in the right direction to learn how to do this? I'm curious to know
> what can be monitored on the SAN through SNMP and how I would go about
> setting it up with Nagios. Would I need an equallogic specific plugin
> for Nagios? Thanks for any help.

You have to check what exactly you want to monitor in your SAN, then
find the according "OID" (Object ID) for that value.

Then, make sure your nagios-server is "snmp-ready", by installing
perl-Net-SNMP, and compile check_snmp. (Maybe you also need net-snmp and
net-snmp-dev, I'm not quite sure.)

Set a password (community-string) on your SAN for snmp-read. It might
already be set to "public" (I personally don't like default passwords.)

You might need a customized MIB for that device which you should
probably get from the manufacterer or which is somewhere on the "Driver
CD" for your SAN. (Read some documentation on  MIBs:
http://en.wikipedia.org/wiki/Management_information_base)
The MIB should tell you, what can be monitored.

If you have Hostname, OID and a valid password, as well as a working
plugin (check_snmp), just stick to the documentation on
http://nagiosplugins.org/man/check_snmp

or have a look here
(http://www.superk.org/index.php/Nagios_&_Windows#Monitoring_with_SNMP)
for another example.

You won't need an equallogic-specific plugin, thats the nice thing about
snmp.
You'll just have to define some custom commands and services for your
equallogic stuff.
Here is a mail-thread with some examples for a hp-device:
http://www.mail-archive.com/nagios-users@lists.sourceforge.net/msg15150.html

Hth,
 Marcus
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