Hi Mick, The first thing I'd suggest is don't do all this yourself - get an expert in. You need to look at number of users, LAN and WAN design, application requirements and performance, printing requirements, etc. Then you can start to work out if Srver Based Computing is the correct solution, and if so, do you need Citrix, plain TS, or might something else do the job more cost effectively. Server sizing is just a detail that comes ofter that. OK. Back to your original question. Dual + 2Gb RAM + 10k HDD is fine, but it worries me that you're not being specific enough - normally, I'd at least expect the processor type to be specified in a request like this... Don't be surprised if your testing shows you need more RAM, and make sure you pile users on the test server until you can work out what you user limit is. Brian Madden has written an excellent book on designing Citrix environments: http://www.brianmadden.com/books/ -----Original Message----- From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On Behalf Of Hassan, Mick Sent: Sunday 5 September 2004 5:27 To: 'thin@xxxxxxxxxxxxx' Subject: [THIN] Re: Try and explain this one to *your* boss hi all not sure how to use this forum as I have accidently become involved when sending a request to a citrix company anyway as i am here can anyone help with the following my organisation is about to embark on a citrix trial aswerver nd want to size the servers for the trial and then the eventual use of citrix to support a health application we will be in a w2003 server environment with 2000 or xp workstations currently looking at using dual processor machines 2mg memory 1gybte nics 10k hdd which are the pertinent indicators to use memory i/o porcessor hdd connection combination are there sizing papers available on-line mick ******************************************************** This Weeks Sponsor triCerat: Have you had your fill of printing support calls, unauthorized apps running on unsecured Terminal Servers, profile headaches, and application performance problems? Join us and learn how you can have a less demanding on-demand enterprise! http://www.tricerat.com/?page=events#register ********************************************************** Useful Thin Client Computing Links are available at: http://thin.net/links.cfm *********************************************************** For Archives, to Unsubscribe, Subscribe or set Digest or Vacation mode use the below link: http://thin.net/citrixlist.cfm