Thin Client and Virtual Machines Thread, VDI Experiences? in Technical; Hi all
Just back on here after a while off. I am looking at the different VDI solutions (as part ...
30th November 2011, 08:03 AM #1
30th November 2011, 09:00 AM #2
I am currently involved with a project in deploying 15,000 of these. A mix between the traditional terminal services and some users get dedicated virtual machines. Some users are running Photoshop and Dreamweaver with no problems. Every user has the capability for video conferencing. Each machine has 2 monitors a webcam and each user has a headset. We are using Citrix.
We have Windows Thin PC on the client machine and the shell is changed to the Citrix lockdown tool. The users logs onto any client and based on the AD groups the user is in take them to the dedicated machine or send them to an RDS server.
Its working really well at the moment. We currently have about 1,500 in place at the moment.
30th November 2011, 12:24 PM #3
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Thanks FN-GM. What app are you using for this - standard 2008 R2 tools or citrix xendesktop, vmware? what sort of server set up do you have to run so many virtual machines, thin clients?
That must be one major rack of servers?
And what made you decide on your solution? What were the factors? I've seen both the server based VDI solutions as well as the client based version with the type 1 hypervisors (virtual computer do an app called nxtop).
Thanks in advance.
30th November 2011, 12:38 PM #4
Server 2008 R2 Enterprise with Citrix. Citrix XenApp for the traditional terminal server type and Citrix XenDesktop for the dedicated machines. Dedicated virtual machines run Windows 7 with Citrix. The dedicated virtual machines are running on a VMware vSphere cluster.
The servers are blades. Each blade has 96GB Ram and 24 cores and a 120GB SSD. But this is a bigger deployment than yours so dont need to that beefy. The traditional terminal servers are not virtual machines but each server uses a whole blade.
Thin clients are currently re-purposed Dell Optiplex 745, 755 & 760's with Windows Thin PC. We are in the process of selecting a ThinClient but this has yet to be decided.
A user gets their own dedicated virtual machine if they are
- Have a Awkward app that cant be delivered via Citrix
- Need special drivers for devices such as a scanner
- Needs to ability to install own apps.
- Require XP for app compatibility.
The company also uses its own distro of Ununtu and that is going to be looked at as an option for virtual machines.
When you say what made us go for that solution do you mean the technical aspects or the reason we all went virtual in the first please?
Feel free anytime to PM me if you would like to know anything
Last edited by FN-GM; 30th November 2011 at 01:09 PM.
30th November 2011, 12:41 PM #5
I have been briefly looking at KVM with the spice protocol.
Spice looks quite interesting because it can offload some of the CPU and GPU onto the clients if they can handle it so it looks like a good mixture between full virtualization and traditional clients. I haven't got a quote yet.
redhat.com | Red Hat Enterprise Virtualization Overview
30th November 2011, 01:26 PM #6
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Cheers for the info on this. Hopefully this thread will continue for a bit and get a variety of views. I can see it being the way forward, VDI (and thin client), it's just the back end costs that I think will make our finance manager wince a bit ;>)
We had an investment of several servers a while back that means we can push out more thin clients and a lot of people here seem to be happy with that but there are those that still want/need the local pc power (and those from ye dark ages that remember thin client as it used to be and don't want it). I'm just curious if the VDI thing is the way forward or if it's still in it's infancy, to a degree. There is a lot of talk about back end kit with serious graphics abilities and graphics protocols designed especially for the thin client / VDI way of working things. It would be great from a management angle, for sure! In all honesty it will probably do 80% of what we need PCs for, but I'd still like to see it working in the flesh with 30 students all doing solidworks 3D design / modelling and the same in another room all doing video editing etc.
I'm sure it can with the right amount of power in the server room (and the right budget to buy it).
Thanks FN-GM & Cybernerd. All opinions very much welcomed.
1st December 2011, 09:25 AM #7
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Cheers EduTech. Apologies for the late reply. I will drop these guys a mail and get their views as well. I like the way they say they will tell you when NOT to replace PCs as well. Which I'm taking at this moment to mean the areas I have considered PCs would still be needed BUT I will ask the question. I will definitely check out all the info you chaps have provided me with. Many thanks to all.
1st December 2011, 11:21 PM #8
26th January 2012, 09:21 PM #9
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I spent some time looking at Thin Client solutions for schools (as a potential supplier) a while back. I have captured some of what I found here Thin Client | 2DeCipher - Technology Made Simple
The biggest "gotcha" (sorry American influence) to look out for with any server based compute model is - make sure you get the user experience right. Multimedia and device connectivity (via USB etc) are the hardest to get right and you will probably need different solutions for say "power users" versus "standard users".
26th January 2012, 09:40 PM #10
I'm not sure of the value of the link. I think most people on the thread know what Thin Client solutions are they just want example of kit and specs that are used in schools to deliver the solution and their experience of it.
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