Stress Test for NLB - [WP]

[WildPacket]

Running Windows 2003 NLB in VMWare 3.5 envoirenment. Testing Setup for now.

We will be hosting 3 Web Servers running a DB accessed via IE6/7. I want to
find out is there a some way to do stress test on this NLB Envoirenment?

Basically I want to find out on draining the server ......how long will it
take.

Currently we use Application Centre and will get rid of it soon and use NLB.

Is there some kind of tool which I can add on the NLB Hosts and test it???

Advise Please.

Thankyou

[Mathieu CHATEAU]

Hello,

You need a tool to stress your Web site, that will in turn stress your
VM, with load spread accross them through NLB.

Then, while the load is important, drain a server through NLB. You
stress tool should notice a few retry, and the load must now be 50% on
both VM.
Stress tool : WebLoad (comes with Visual Studio Team suite), OpenSTA,
Load Runner....

When using NLB for IIS, you should change a IIS metabase property to
send a TCP reset to the client, so it will connect again on the VIP to
another server:

IIS Responses to Load-Balanced Application Pool Behaviors
http://technet.microsoft.com/en-us/library/cc757659.aspx

If your website store sessions on the server side, these sessions can't
be stored on the servers. They must be stored on an external server,
like a database server or sessions server.

Regard,
Mathieu CHATEAU
french blog: http://www.lotp.fr
english blog: http://lordoftheping.blogspot.com

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