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SolarWinds Impact

Hello,

I have a developer that insists that using ANY kind of management tool like SolarWinds to monitor a server would have too much impact to the normal function of THAT server being monitored.

Basically, the developer thinks that SNMP queries via SolarWinds will cause undue stress on the servers.

Can anyone give me some real world numbers so I can put the developer at ease? What the REAL impact is? I need this tool, but can't seem to sway management.

Thanks

Brad

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mjhamilton

if you use a util that is agent based (ie Openview) they quote a 2-5% overhead required by the application.

I have a variety of NT, Win2k, Solaris and Cisco network devices... they display no signs of being pressured by the polling and SNMP interogation.... obviously there will be some impact at some point but the polling can be controlled to suite your network and requirements...

As I have said I have noticed no performance hit for my devices and the impact is going to be less than and agent based system.

Martin J. Hamilton... lost in a sea of snmp...

bradfordm

Thanks for the info. Is there any standard message sizes when using SNMP? For each element queried via SolarWinds what is the returning message size, is there any standard or method for determining that impact on the LAN?

I need to be specific in this so I can sell the tool.

SolarWinds Tech - Are you reading??? Do you have any deep whitepapers regarding LAN impact???

bradfordm

Just came to me. SolarWinds could use a calculator to determine the theroretical byte count on SNMP messages from SolarWinds to the system(s) being monitored. Then giving the user the ability to streamline the elements being monitored.

Maybe by right clicking on the NODE/ELEMENT being monitored have a TX/RX impact summary based upon the number of elements being returned to SolarWinds...or...or...man I'm on a roll. Put the TX/RX impact on the LAN in the Summary Charts area.

Just a thought.

Network_Guru

Check this page:
www.solarwinds.net/.../Transfer.htm

The unique multi-threaded collection engine developed by SolarWinds is so efficient it adds almost no overhead to your network. In fact the the total traffic generated by the Orion NPM to monitor and collect statistics on a network of 1,000 is only 20.1 kbps in added load. That's less then the traffic created by a single FAX modem!

The earlier documentation had a chart which detailed the traffic load generated by SNMP according to node#s & Polling rates.

I can't find it anymore.... [:(]

-=Cheers=-
NG

FormerMember

While I can't give you exact numbers, I can say that I monitor about 400 total elements and my solarwinds server averages about 40 packets per second and 40kbps. That's nothing.