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python library for servrmgrd (was Re: Xserve SNMP-MIBs for Vital Hardware Stats)

Subject: python library for servrmgrd (was Re: Xserve SNMP-MIBs for Vital Hardware Stats)
From: Andre LaBranche <email@hidden>
Date: Mon, 11 Jun 2007 21:33:42 -0700
Delivered-to: email@hidden
Delivered-to: email@hidden

On Jun 4, 2007, at 4:07 PM, Andre LaBranche wrote:

...
However, one nice thing about SNMP is that it is extremely extensible. Any data that you can retrieve in some fashion using a unix shell can be made available to SNMP via the use of the 'extensible mib'. Here is an example of how to get server monitor data via a shell:

http://faq.bioteam.net/index.php?sid=253527&lang=en&action="">

At this point, you'd have some XML results, which could then be parsed as you like. When you've honed in on the data that is interesting to you ...

While researching this, I figured I should probably go ahead and crank out some decent cacti templates and accompanying scripts that get executed via snmpd, since I couldn't find any. It shouldn't be too hard to provide an snmp view of the same data that server admin can show. It was also a good excuse to learn python, and as it turns out, the servrmgrd stuff I came up with makes a tidy little python library. I'm still working out the snmp details, but the python side is pretty much done, so here it is: http://www.dreness.com/bits/tech/srvrmgrIO/srvrmgrdIO.py

Here's a quick chunk of sample code that uses the library. This would print a list of names and IPs of all afp connections.

request = srvrmgrdIO.buildXML('getConnectedUsers', '', '')

pl = srvrmgrdIO.sendXML('servermgr_afp', request)

print "AFP Users:"

for u in pl['usersArray'] :

print u['ipAddress'] + " ==> " + u['name']

print ""

A much more thorough treatment: http://www.dreness.com/blog/?p=38

Cheers,

-Andre

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References:
	>Xserve SNMP-MIBs for Vital Hardware Stats (From: Gregory Hedo <email@hidden>)
	>Re: Xserve SNMP-MIBs for Vital Hardware Stats (From: Andre LaBranche <email@hidden>)

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