When running Exchange Load Generator on an Exchange CMS with 50 Storage Groups and 50 Databases, how do I simulate 4000 users. Does the tool support this? If not, then what are the alternatives to test 4000 users? Thanks Saddiq

Hi, Microsoft Exchange Load Generator is a tool that used to simulate client requests against Exchange Server for testing purposes. Microsoft Exchange Load Generator simulates the server workload that is generated by user interaction with various message client software. It is a useful tool for server administrators or messaging deployment engineers who are sizing servers and validating a deployment plan. Specifically, Exchange Load Generator helps you determine whether each of your servers can handle the load that they are intended to carry. Another use for Exchange Load Generator is to help validate the overall solution. Because Exchange Load Generator simulates client requests, the effect of server-side solutions such as archiving, antivirus, or anti-spam products can also be validated. I am not very clear about Exchange CMS, it seems to be a third party software from Exygen Interactive,not comes from Microsoft. Then I recommend you to contact Exchange CMS support to get relevant help. http://www.exygeninteractive.com/contact If it is not the case, then please feel free to let me know. More information share with you: System Requirements for Exchange Load Generator http://technet.microsoft.com/en-us/library/bb508891(EXCHG.80).aspx When to Use Exchange Load Generator http://technet.microsoft.com/en-us/library/bb508899(EXCHG.80).aspx Hope it helps. Xiu

CMS isan Exchange term - Exchange Clustered Mailbox Server. So back to the original question - how many user can it simulate in one session.

Hi, You must configure the number of users in the mailbox stores where you want to send requests. You can follow the below article tospecify the number of users to simulate for each mailbox store that receives Exchange Load Generator requests. How to Set Up the Exchange Load Generator Test Topology http://technet.microsoft.com/en-us/library/bb508875(EXCHG.80).aspx How to Configure the Test Properties http://technet.microsoft.com/en-us/library/bb508867(EXCHG.80).aspx Hope it helps. Xiu

I understand that, however, I need to know what is the total amount of users the tool will support? I need to scale to 5000 users. Can it handle that?

Theoretically speaking,it could simulates somuch users. Regards, Xiu