An R900 is a HEFTY box. 4 sockets, all quad-core capable, 128 GB of RAM maximum. I'm sure the Dell person was assuming a loaded up box with all 4 processors in it and gobs of RAM, a rather expensive venture to get into all at once. I can see that box being able to handle 200+ users depending on application. I virtualized a few remaining Citrix servers from an old environment and it's been a smooth sailing experience. They are very low use since it was a turndown of something no longer used, but if I get into a similar Citrix environment in the future, I'll go straight into VMware with it. Downside to that kind of setup is it's a lot of eggs in one box.That setup wouldn't sit all that well with me personally. I'd rather go with a blade setup with a lot of separate blades for similar (maybe less) money and be able to spread that love around a little. You'll still gain environmental benefits and increase capacity at the same time, while still maintaining a level of hardware redundancy. All that being said, there's nothing wrong with those PE2850's, even if they are first gen units. A couple of my primary VMware servers run on those boxes still, chowing away just dandy. ________________________________ From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf Of Minero, Hector B CIV NSWCDD, K55 Sent: Friday, July 25, 2008 9:29 AM To: thin@xxxxxxxxxxxxx Subject: [THIN] Virtualizing Citrix Hi all, I see all these messages going back and forth about virtualization, but not much information on how Citrix/TS behaves in a virtualized environment. A tech./sales person from Dell came yesterday and told me that I could probably replace 7 of my PowerEdge 2850 with one beefed up PowerEdge R900 and virtualize the 7 Citrix servers. I find that kind of hard to believe. Each of my 2850's can handle about 30 to 40 users concurrently. I just don't think that an R900 could handle 200 + users with virtual Citrix servers. Is anyone out there using VMWare to virtualize Citrix servers in a production environment? What kind of hardware? How many virtual servers per physical server? How many users? I would greatly appreciate your advice as I am new to VMWare. _______________________________ Hector Minero NSWCDD K55