[THIN] Re: XenApp or XenDesktop?
- From: Carl Stalhood <cstalhood@xxxxxxxxx>
- To: thin@xxxxxxxxxxxxx
- Date: Thu, 5 Mar 2009 09:25:27 -0600
As long as your options are XenApp and XenDesktop, end-user functionality
will be very similar. Brokers from other VDI vendors will probably look
different to the end-user.
The primary difference is in the data center. It is easier to get apps to
work on virtual desktops than it is on Terminal Server.
However, VDI has some important cost differences. More hardware is required
to support the same number of users on VDI than on Terminal Server.
According to Project Virtual Reality Check, you'll need double the hardware
for VDI. And that doesn't include the SAN.
VDI also has a cost difference when it comes to Microsoft licensing.
Terminal Server CALs are perpertual, are available in named-user, and don't
require SA. VECD, on the other hand, is device based only, requires SA on
the client device, and is licensed annually.
On Thu, Mar 5, 2009 at 7:14 AM, Minero, Hector B CIV NSWCDD, K55 <
hector.minero@xxxxxxxx> wrote:
> This brings up a question:
>
> When should you deploy a XenApp (ICA) solution on Thin clients and when
> should you deploy a XenDesktop solution?
> I know cost may be an issue, licenses, etc. but performance-wise?
> We've got Wyse TCs running ICA desktop sessions to Citrx servers and I'm
> wondering if I would get better performance and better management if I
> deployed XenDesktop or some other Desktop virtualization solution.
>
> _______________________________
> Hector Minero
> NSWCDD K55
> Ph:(540)653-8859
>
>
> -----Original Message-----
> From: thin-bounce@xxxxxxxxxxxxx [mailto:thin-bounce@xxxxxxxxxxxxx] On
> Behalf Of Christoph Wegener
> Sent: Thursday, March 05, 2009 6:13 AM
> To: thin@xxxxxxxxxxxxx
> Subject: [THIN] Re: thin client deployment in a school
>
>
> Hi Puneet,
>
> Here are my quick thoughts:
> Looking at the applications you listed, it would be recommended to
> have the applications executing on the desktop hardware rather than on
> a Terminal Server/XenApp Server.
> Products like XenDesktop and Provisioning Server from Citrix might be
> applicable in this scenario to reduce TCO.
> Especially Autocad will prevent you from deploying a Terminal Server
> solution as Autodesk prohibits by its EULA to run its Software on a
> Terminal Server. With the latest releases of AutoCAD you will not even
> be able to run the installer on a Terminal Server.
>
> Citrix Provisioning Server can help you reduce TCO by having a single
> OS image for all desktops. So there is no need to patch 150 desktop
> separately. Adding application virtualization to the mix will allow
> you to dynamically compose your desktop images on the fly. This of
> course requires that all the applications you listed are compatible
> with application virtualization.
> But as there are multiple competing vendors
> (Microsoft,Citrix,VMware,Symantec) in the application virtualization
> space, chances are high that you might find one or more products which
> will enable this scenario for you.
>
> If you still want to use a Terminal Server scenario, then you should
> do a thorough analysis of the computing resources that all of your
> application requires. This then gives you an idea about the
> scalability and efficiency of your targeted architecture. I would
> assume that applications like Photoshop may require huge amounts of
> RAM for each user session. Therefore a worst case scenario could be
> that you can only support about 5-10 Photoshop user sessions on a
> single Windows 2003 Terminal Server instance. To maximize efficient
> use of hardware scalability you could then look at running multiple
> virtual OS instances on a single server with say 32Gb RAM to pack
> 40-80 Photoshop user sessions on a single physical server box.
>
> Additionally, if the students are going to use the 3D modeling
> features of some of the applications, then the currently available
> server CPUs won't be sufficient and you might want to look at an
> external GPU.
> Citrix Systems has a Technology Preview of it's project Apollo
> available which is targeted at delivering 3D applications via ICA:
> https://www.citrix.com/English/ss/downloads/details.asp?downloadId=13409
> 63&productId=163057
>
> Hope this helps :)
>
> Christoph
>
> On Mar 5, 2009, at 8:36 PM, Puneet Goel wrote:
>
> > Hi,
> >
> > I have to deply thin client in a school for around 150 students. They
> > will be working on advanced IT apps like 3D Max, Maya, Autocad,
> > Photoshop, Oracle, SQL.
> >
> > can anyone guide me in finalizing server requirements for them.
> >
> > thanks
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