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Dell Virtual Remote Desktop Solution Reference Architecture 21

Appendix: Testing Methodology

The configurations were tested using two defined workloads: knowledge

worker and task worker. A base virtual machine (VM) was defined for these

workloads, along with the workloads and their associated applications. These

were deployed using the XenDesktop's pool feature.

The test objectives were:

• Determine the feasibility of deploying VMs through pools

• Define acceptable response times, throughput, resource utilization, and

usability of VMs

The workload generators used to stress the configurations have error checking

and handling mechanisms, so if the system became overloaded, errors would

appear and the test run would stop. These error checks, along with the

defined QoS metrics, were used to validate stability as the number of

VMs was scaled up.

Virtual machines are configured with only one Virtual CPU (VCPU). This is

done to maximize the number of VMs that can be supported on a single

server.

The testing configuration components were:

Virtual Machines: All virtual machines used in our scalability and

functionality testing were configured with 384M of RAM, 1 VCPU, 4 GB

virtual disk, and one network interface.

Structured Task Worker Workload: The desktop user entered 900 random

numbers into a Microsoft Excel

worksheet (30 rows x 30 columns). The only

application running on the desktop was Excel.

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Dell Citrix Software Manual de usuario Pagina 21