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Desktop virtualization software help

My company is looking to go with virtual desktops (600 desktops) as a way to decrease the cost of support issues. Besides VDI from Vmware, what other software packages are good? Price isn't a problem if we can get a package with good application support ,easy to maintain and easy to setup. It can be thin client based as well if the product includes software and can be easily replaced or repaired.
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Andrew Hancock (VMware vExpert PRO / EE Fellow/British Beekeeper)
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We also run Vsphere as our hypervisior and we wanted to see if there was a hardware/software package that is available out there. We still want to remove the desktops and have thin clients. But most of thin clients we seen were either very slow or just mini desktops
If you have VMware vSphere, you can use View, Citrix XenDesktop, and Quest products.
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that's the software side but what about the hardware size of things? are there any thin client with built/boot in VDI software that connects to Xendesktop, View and etc?
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Yes there are, if you want to reuse old equipment take a look at thinstation.

http://thinstation.org/

Or if you want to buy new hardware lots of companiees make thin/zero clients. Check out WYSE,HP,cisco, etc.
The best thin clients are based on the reference PCoIP design, e.g. Dell/Wyse P20, but there are many others based on the same design by 10Zig etc

We've had many issues in this area with VDI deployments, when using conventional storage, either local SAS or SAN based storage. For our VDI deployments we now use Fusion-IO products (SSD) based, to save on electricity, air conditioning, the expensive of SAN deployment, and help us with "VDI storms". e.g. big slowdowns that can occur when a lot of users log into the system at the same time.

Once users boot up, log in and load applications, the storage I/O typically settles down to a minimal level. The IOPS difference between a desktop VM that is booting and after it has booted is extreme, which can make architecting storage for VDI environments a challenge. A typical desktop VM running Windows 7 will generate from 50-100 IOPS while is it booting; once it is running normal workloads, the average IOPS drops to about 5-10. Therefore, to successfully meet the I/O demands caused by boot storms, your storage needs to be designed to handle the worst-case scenario.
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Are the Wyse p20 lightweight and do they boot up fast? I had 2 from HP and they were horrible when it came to restarting and making Ip changes. it took nearly 5 minutes to reboot/boot up. They also ran an embedded WINXP on a chip
what do you mean by fast, do you have any specfic requirements, e.g. a time to boot Wyse terminal, before it connects to Connection Broker.

The Best Performing Thin Client is a PC with the VMware View Client, or XenDestop client.
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When I say fast, from a cold start to a screen where the user can log into their Virtual desktop. How long will this take? If i had to change the IP address on the Wyse thin client, do i need to restart it? Is it instantaneous?
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So roughly about 20 seconds total before you start to load the desktop. That's pretty good actually. The old HP thin client we had took 5 minutes to get from boot to the log on screen. Then another 3 more minutes before it finishes loading the desktop. It drove us and the users crazy