[cisco-voip] using Nagios to monitor MCS servers

[Wes Sisk]

There are really too many variables including how loaded the equipment  
is with existing call processing load.


On Jun 12, 2009, at 4:40 PM, Fuermann, Jason wrote:

Just a shot in the dark, but do you know around how many queries a  
minute is safe (more than zero I hope J)? We’ve been running SNMP and  
I haven’t noticed any spikes in cpu, ect. Due to the polling.

From: Wes Sisk [mailto:wsisk at cisco.com]
Sent: Friday, June 12, 2009 11:37 AM
To: Fuermann, Jason
Cc: abuch; cisco voip
Subject: Re: [cisco-voip] using Nagios to monitor MCS servers

For our own CUOM product we've seen rapid repeated SNMP queries and  
AXL reads spike CPU and cause code yellow just as you fear.

In the specific case of Nagios it caused CSCsk46770 which is a PSIRT  
issue so limited information is available.


I am not recommending against this approach.  I am only recommending  
to take inventory of system health and behavior before and after  
implementation. We have repeatedly observed monitoring tools causing  
significant impact.

/Wes

On Friday, June 12, 2009 10:32:15 AM, Fuermann, Jason  
<JBF005 at shsu.edu> wrote:

Would you mind elaborating on the issues? I wouldn’t think snmp gets  
every few minutes would be that big an issue (at least compared to a  
single get). Of course, I could also see a single get spiking the cpu  
and causing a code yellow, I just wouldn’t expect it. Just curious  
cause we are using snmp to monitor our cluster.

From: cisco-voip-bounces at puck.nether.net [mailto:cisco-voip-bounces at puck.nether.net 
] On Behalf Of Wes Sisk
Sent: Friday, June 12, 2009 9:09 AM
To: abuch
Cc: cisco voip
Subject: Re: [cisco-voip] using Nagios to monitor MCS servers

It is possible but I would caution you to take careful inventory of  
functionality and alarms before and after implementing nagios.  we  
have seen numerous service impacting issues caused by monitoring tools.

Regards,
Wes

On Friday, June 12, 2009 2:59:03 AM, abuch <abucho at gmail.com> wrote:


Dear,

What do you thinks of using Nagios to monitor performance utilization  
of Cisco MCS servers running windows 2003 like UCCX, WFO QM and Unity?

regards,

Abebe Amare
System Engineer, VivaCell









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