Loadrunner Versus Sitescope monitoring

[Syed Zuber]

Dear All,

We have a requirement to monitor almost 20 servers(inlcluding linux and windows during our Live testing) to get system level resource consumption.

Can we use loadrunner for monitoring all the servers instead of sitescope, as our requirement is only monitoring  during load testing. if incase our requirement is to monitor a production environment we would have opted sitescope.

Experts please advice  monitoring 20 servers will it add any overhead to the controller machine?

Does sitescope monitoring has any advantages over loadrunner?

Warm regards,
Syed

[Kasim M]

Hi Syed,

I think you can monitor 20 servers in LoadRunner, I would not think any resource constrains in Controller machines. For safer side dont use the controller as load generator during the test.

Please remember all the linux machines should have the rstatd  up and running.

Thanks
Kasim

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[James Pulley]

Since LoadRunner version 8, SiteScope has been the recommended and preferred model for monitoring application infrastructures when running a LoadRunner test.  This is why a SiteScope license is included with LoadRunner.   Enhancements are made to SiteScope's monitoring capability, such as the ability to query the VMWare Hypervisor for stats, that you will not see made to the base controller.   It is agentless for LINUX and UNIX environments which is important since most organizations will not run Rstat to allow you to connect.  

There are some monitors which are easier to implement in the controller, with a few caveats.    If you are in the same domain as a Windows host that you want to monitor and you are signed on with credentials which allow access to the perfmon counters on the other Windows host, then you can add monitored elements in the controller quite quickly.   If you need a second set of credentials or you are in a different domain then turn to SiteScope as it is setup to handle these variables better.   Monitoring ORACLE, on the other hand, always seems to me to be easier from the controller directly, but this is a general exception to the SiteScope Rule.      SNMP based items are also easier under SiteScope.

Note, the two tools have been integrated, with the ability for LoadRunner to use SiteScope as a proxy to pull monitored items, since LoadRunner version 8.

James Pulley

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[Syed Zuber]

Thanks Kasim, James,

Sitescope is not designed for monitoring only during load testing , it can be used in standalone mode also, basically used for monitoring server health in production by NOC team.

My question is if we monitor 20 servers directly through controller does it add an overhead to the controller, as during execution it is already busy communicating with agent dispatcher/agent process with various LG's.

As monitoring capabilities are there in load runner, what are its limitations?

Through Load runner System(Windows/Linux Monitoring) is free,  how about Application/Database level monitoring ? is it separate license?

Syed

[James Pulley]

[Start]

->LoadRunner

-->Documentation

--->LoadRunner Books Online-

---->HP LoadRunner Monitor Reference

Potentially 500 pages of answers to your questions.  Read Carefully.  All of your questions are answered in this reference.   There are many reasons why SiteScope is recommended path for monitoring your application infrastructure during a test.   As you read this manual you will see what these reasons are and whether they apply to your environment.

James Pulley

[Loadtester]

There is a special version of SiteScope designed to be used with LoadRunner for pre-production monitoring under load. It is not meant to monitor production environments. The licensing key generated by HP support for use with this version will not enable long term graphs for monitoring for extended times. To use SiteScope as a production monitoring solution in stand alone mode or integrated with the other HP Business Service Management Suite of products, a separate license would need to be purchased. Just FYI.

Scott