Citrix unveils desktop virtualization plan
Citrix extends virtualization to desktop operating systems and applications.
By
John Cox
,
NetworkWorld.com
, 10/23/2006
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Citrix Monday unveiled a software application and a plan to give network administrators a consistent way to create and administer
different virtual desktops for end users.
The idea is to transplant the client Windows operating systems from individual PCs to a trinity of centrally managed, scalable
server options, including Windows Terminal Services, various commercial and open source virtual machine servers, and rack-mounted
blade PCs. Then, Citrix's new software will coordinate and administer users' access, via any Windows client device, to these
remote desktops.
Citrix is one of many vendors extending virtualization to desktop operating systems and applications. Rivals include Altiris and Propero, and even VMware and XenSource, which are
nevertheless listed as partnering with Citrix on this new plan.
Desktop virtualization is a way to dramatically simplify end user computing by consolidating scores or hundreds of desktop operating system and
applications on servers, and then letting users access these via a thin client instead of a full-blown PC.
The first step by Citrix, unveiled this week at the company's annual iForum customer conference, is the Desktop Broker, a
software program that plugs into the company's flagship Presentation Server 4.0. Administrators identify the relevant backend
servers, including specific Windows Terminal Services boxes, virtual machine (VM) servers, or blade PCs, all of which can
run instances of Windows XP.
A sales rep, for example, connects and authenticates via Presentation Server as usual. But Desktop Broker in effect intercepts
this connection and redirects it through Presentation Server to the appropriate backend, in this case a dedicated virtual
machine for the sales department, running on VMware's virtual server, for example. Without Desktop Broker, the sales rep would
have to separately and manually log into each separate virtual machine for different applications, says Nabeel Youakim, vice
president and product line executive for Citrix Presentation Server.
Desktop Broker will also be able to shift users to VMs that have less of a load, optimizing performance.
Citrix's larger plan is to copy some of the desktop virtualization components in Presentation Server and write new code to
create a standalone application that won't need Presentation Server. This new server application will let enterprises virtualize
their desktop operating systems, running this software on any combination of Windows Terminal Services, VM servers, or blade
PCs. This trio of options gives the project its code-name: Project Trinity.
Presentation Server will be unchanged and serve both applications and Windows desktops based on Windows Terminals Services
over the network to an array of client devices, says Wes Wasson, Citrix's corporate vice president of marketing and strategy.
The Trinity software in effect becomes an administrative front-end to an array of third-party virtual server options, and
will let network administrators make use of all three backend options, based on the needs of users, according to Wasson.
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