XenDesktop Notes to Self

The following are just a few notes to self after reading through the "delivering 5000 desktops with XenDesktop 4" Document that Citrix has released.

Assigning Farm Master Role (CTX117477)
Prevent the Farm Master from handling connections (CTX117446)
Pool Management by default starts 10% of the pool. (change thisin CdsPoolMgr.exe.config)
Dont Place PVS vDisk on CIFS Share (cache problems likely to occur)
HP BL460C - Dual Quad Core 1.86Ghz - 28 VMs (1vCPU and 512MB RAM, 1.5GB PVS cahce on NFS)
HP BL460C - Daul Quad Core 2.5Ghz -   50 VMs (1vCPU and 512MB RAM, 1.5GB PVS cahce on NFS)
Split DDC Roles
(DDC1 = Farm Master DDC2 and DDC3 = VDA Reg + XML Brokering) All 4GB RAM 4vCPU
Logon Times in their testing most 15-22 seconds. (peak 40 during storms)
Read/Write Ratio in their testing showed 11.5% Read 88.5% Write
Mean IOPS in their testing showed 4.4 per desktop and Max Average 27.7

 The notes below are copied from the CISCO degign document.
Cisco Xendesktop Design Paper

Tuning Microsoft Windows 7 Image for XenDesktop
When many Windows desktops run on a hypervisor it is necessary to try to reduce unnecessary CPU cycles and disk I/O to improve system performance and stability. By turning off unnecessary processes and other unwanted desktop services for instance helps achieve this.
The following configurations were made to the standard image:
•Configure fixed 1.5GB page file
•Configure Networking and Firewall
–Turn off firewall
–Set DNS IP addresses for domain
–Turn off IPV6
•Windows 7 optimization recommendations from the following Citrix blog:
http://community.citrix.com/pages/viewpage.action?pageId=113247185
–Recommended “Default User Profile” settings were also applied and copied to “Default User” using the latest Forensic User Profile Manager tool, visit http://www.forensit.com/desktop-management.html
•Citrix PVS TCP Large Send Offload should be disabled on both the PVS server/s and the target device (Windows 7 image). To do this follow the instructions found here:
http://support.citrix.com/article/CTX117374