esSJae's Virtualization Blog

Virtualization and other IT topics

Archive for October 15th, 2009

Remote Desktop Load Simulation Tools (VDI Sizing) Available

Posted by essjae on October 15, 2009

The Remote Desktop Load Simulation toolset is used for server capacity planning and performance/scalability analysis.

In a server-based computing environment, all application execution and data processing occur on the server. Therefore it is extremely interesting to test the scalability and capacity of servers to determine how many client sessions a server can typically support under a variety of different scenarios. One of the most reliable ways to find out the number or users a server can support for a particular scenario is to log on a large number of users on the server simultaneously. The Remote Desktop Load Simulation tools provide the functionality which makes it possible to generate the required user load on the server.

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Internal Network VM to VM DHCP in WinVPC

Posted by essjae on October 15, 2009

There is a known issue with Windows Virtual PC when running DHCP server as a VM and trying to serve IPs to other VMs using the Internal Network option.  The official response from MS:

When you connect the virtual machines to internal network, it gets the IP address from the internal network inbuilt DHCP server.

There is a work-around fortunately:
* Hibernate/Turn off all the VMs. From Task Manager, kill vpc.exe if it doesn`t exit on its own.
* Edit %localappdata%\microsoft\Windows Virtual PC\options.xml
* In the XML file -> Under the “internal network” node: i.e. “preferences\Virtual Network id =0\virtual_server\dhcp\” , set enabled = false. (search for DHCP)
* Power on the VMs

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