Reference Architecture

Dell Virtual Remote Desktop Solution Reference Architecture 13
• Network: The two onboard and one add-in DualPort gigabit NICs provide
enough bandwidth to support VM image streaming and network traffic,
while leaving the remaining PCI-e slot(s) available for additional
peripherals. The service console and XenServer management are shared on
the same NIC. To keep storage traffic isolated, a pair of independent
Ethernet switches is recommended to access Provisioning Servers.
•
Disk: Local storage is used to store the VM configurations only.
Provisioning Server is required for storage of the VM disk.
NOTE: Using faster disks and/or adding more spindles can improve
performance on the Provisioning Server. Refer to the Provisioning Server
Reference Architecture Guide for more information.
Medium Configuration
The Medium Configuration is targeted towards medium business customers.
It consists of nine to sixteen servers, each running XenServer. Each server
should have quad-core processors and at least 16 GB of RAM. This
configuration supports up to 512 knowledge worker desktop loads.
Five provisioning servers are used in this configuration, along with a Dell
FE600W failover cluster. This provides redundant and scalable streaming
server capabilities that can stream an OS image to 500 VMs. Shared storage—
such as a Dell|Equalogix PS5000XV—will also allow the use of XenMotion to
help load balance the XenServer workload.
Citrix Provisioning Server should be deployed with its own shared storage
solution. Refer to the Citrix Provisioning Server Reference Architecture Guide
and Deployment Guide for detailed information on shared storage in this
environment.
Reference_Architecture.book Page 13 Thursday, November 6, 2008 2:12 PM