Be to set the min/max memory allocated to 2GB in the VM configuration. This will prevent memory from being swapped to disk on the ESX side. The rest are good recommendations. If they must have 2 vCPUs, partition it out by reservations and/or CPU pinning. Joe From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf Of Christopher Wilson Sent: Tuesday, October 07, 2008 8:25 AM To: thin@xxxxxxxxxxxxx Subject: [THIN] Citrix on VMware While we're talking about design considerations, I want to bounce another one off you guys. The customer requires all presentation servers run on VMware. From what I can gather the optimal Citrix VM looks something like this: 2GB Ram 1 vCPU Do not use balloon memory driver. Place page file on separate virtual disk from the system disk. beyond that standard optimization tweaks as desired. From your experience and observation is this optimal? I'm expecting to get 15-20 users per server. Customer currently uses more RAM, dual vCPU's and balloon driver enabled. Regards, CW