New Question
 
 
PRTG Network Monitor

Intuitive to Use.
Easy to manage.

200.000 administrators have chosen PRTG to monitor their network. Find out how you can reduce cost, increase QoS and ease planning, as well.

Free PRTG
Download >>

 

What is this?

This knowledgebase contains questions and answers about PRTG Network Monitor and network monitoring in general. You are invited to get involved by asking and answering questions!

Learn more

 

Top Tags


View all Tags


Performance counter vs WMI

Votes:

0

Your Vote:

Up

Down

I am trying to figure out what kind of performance we need for every remote probe we need to use. We are running mostly Windows server so i am mostly stuck to WMI and Performance Counter sensors. According to your documentation (http://www.paessler.com/manuals/prtg/system_requirements.htm) I see that using a lot of WMI sensors is not reccommended, but i can't find information about Performance Counter sensors. What is exactly the difference between these 2? Is the use of Performance Counters a better solution for Windows Servers? Or is there maybe another solution?

performance-counters prtg wmi

Created on Feb 28, 2014 8:59:04 AM by  mvanrijsten (0) 1



3 Replies

Votes:

0

Your Vote:

Up

Down

Performance counter sensors, in terms of resources usage, are far better than WMI sensors. Also another alternative would be to use SNMP but we do not suggest this as we have had issues with Windows changing the indexes on the OIDs and they are no longer monitorable after that. You can purchase software like SNMP Informant that will help with monitoring through SNMP but Performance Counters would work better without software. Another note to this though is that monitoring Perf Counters is only possible when the PRTG server and the Target server are running 2008 and above.

Created on Feb 28, 2014 2:02:46 PM by  Greg Campion [Paessler Support]



Votes:

0

Your Vote:

Up

Down

That is good to hear. Most of our servers run Windows 2008 R2 of 2012 (R2) so this won't be a problem. In a test environment I already see that Performance Counters work on our servers.

Do you also have any numbers I can work with? For example, on the system requirements page (http://www.paessler.com/manuals/prtg/system_requirements.htm) it shows that it is recommended to stay below 120 WMI sensors with a 1 minute interval on a probe. How many sensors do you recommend when Performance Counters are used?

Created on Feb 28, 2014 2:08:19 PM by  mvanrijsten (0) 1



Votes:

0

Your Vote:

Up

Down

This is a pretty good question. We haven't done "complete tests", as there are so many factors that need to be considered, but our observations so far were, that performance counters are more robust and you can add more Performance Counter sensors than WMI sensors. Adding 10 times more sensors, will probably still not be a really good idea, but adding two or three times as many is probably possible.

Created on Feb 28, 2014 5:02:00 PM by  Johannes Herrmann [Paessler Support] (1,320) 2 2



Please log in or register to enter your reply.


Disclaimer: The information in the Paessler Knowledge Base comes without warranty of any kind. Use at your own risk. Before applying any instructions please exercise proper system administrator housekeeping. You must make sure that a proper backup of all your data is available.