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Terminal Server Farm...some advice


We are a company which is growing exponentially in the next year. My concern is that we should be buying server hardware which allows for growth. At the moment we are just buying custom built dual xeon machines with Windows 2003 server and setting them up individually as they come in. If you were a part company that was going to grow by 300 users in the next 12 months, what would you use to allow for that sort of growth in a terminal server environment? I am open to any suggestions such as blade, virtual machines, dual core xeon machines, anything and will give the points to the person with the most suitable solution.  We are to stick to a core terminal server environment because of some of our software that we use.

Kind Regards

1 Solution
Dear dcarrion,

If you are talking about servers with 4 proc and 8 GB RAM can handle about 40 - 50 users. I take it as 128MB per User. It works very fine for me.

If you are going to citrix then it would go to 100 users with the same config , b'coz citrix uses lesser memory than Terminal server.

How many users do you currently have? My initial set up would be enough processing power where my initial need would be 50% of total capacity. When you get to 80% of capacity you start to make arrangements for new servers so that they will be in place by the time you reach 90% capacity. The new servers should put you back to the 50% capacity. This type of setup is easier to justify when you are rapidly growing.
The server spec would depend on what programs you are going to give your users if just basic office,internet, I have a dual 2.8 with 4GB of ram for 50 users in 4 offices without any problems and and at its max it runs at 50% (people doing adode docs) and its average is 27%. there are tricks to setting up a Terminal server IE work better on raid 1.

Also have a look at tscale this helps increase the numbers of users per server but dcarrion is right about the ram.
NFR key for Veeam Agent for Linux

Veeam is happy to provide a free NFR license for one year.  It allows for the non‑production use and valid for five workstations and two servers. Veeam Agent for Linux is a simple backup tool for your Linux installations, both on‑premises and in the public cloud.

I would try to average at least 128MB per User like dcarrion has even if you are not running many apps. This will allow for some growth without worrying about RAM. These days, RAM is pretty inexpensive. The price difference between a 2 proc machine and a 4 proc machine is pretty significant, much more that the price of RAM. If you have the $ then go with a 4 proc server. You're growing pretty fast at 300 users in one year.
dcarrionAuthor Commented:
I am thinking of 4-way processor machine with 16GB RAM and 2x 140~GB SATA attached SCSI with RAID 1 config. The base of this server would be 100 users hoping to stretch it to 110+. Am I pushing it?
Should be no problem read this doc it will point out some of the tweeks

http://www.dabcc.com/miab/MIAB4-Tweaks-Beta.pdf and look at this http://www.rtosoft.com/products/TScale/TScale.html 
Thanks. By the way, if you can I would go with blade servers. They are compact, you need less hardware (such as KVMs), and configuration is a snap.

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