What will Citrix do?

wponder — Mon, 03 Mar 2008 16:49:00 GMT

I wanted to wait till the smoke cleared before sharing some thoughts regarding Microsoft opening the specifications on several of its APIs and communication protocols. Part of the released technology was the specification of RDP.

For VMware VDI, this is probably the most interesting of the released protocol specifications. The initial impact to customers may not be that obvious. However, over time, the benefits could be huge. RDP is the preferred protocol for accessing VMware VDI based desktops. Currently, this makes the most sense to leverage as there is no added cost in doing so which is typically the case with third party add on protocols.

Although getting the optimal performance in broad set of network conditions can be tricky, but it's quite adequate in the highest majority of desktop replacement use cases. RDP has always had virtual channels which allow a third party to add feature functionality to RDP. For example, with VDM 2 we developed a generic USB device redirector that allows you to connect most USB devices, not supported by RDP to a client access device and make them available for use with your VMware VDI virtual desktop.

In order for third parties to leverage virtual channels, you either needed a team of lawyers and a chunk of change or some really good engineers that could reverse engineer. For some time now there have been licensees of the RDP spec and others who reverse engineered it in effort to add value. This included people building feature add-ons as well as full RDP client implementations. Open Source efforts such as RDesktop and commercial efforts from companies such as WYSE, VMware, ThinAnywhere, Provision Networks, Sun Microsystems, Calista and others have all contributed to enhancing RDP.

Over three years ago I started researching the use of VMware virtualization as a way to better manage and deliver desktop computing and overcome traditional server based computing short falls. As we started meeting with customers and sharing the vision of VDI it was becoming clear Citrix had lost their seat at the table. Customers were concerned with the issues surrounding Citrix as a solution, such as complexity, application compatibility and loss of a personal computing experience.

VMware VDI was resonating with IT organizations and desktop management teams as an answer for more broad desktop deployments. I was a little surprised, as no one can take away Citrix's past contributions to server based computing. It's always been my opinion Citrix and Microsoft had become comfortable with their position and the direction they were leading customers and the market.

As VMware VDI emerged it was becoming clear this was what customers wanted. I had not seen such vast interest and adoption of a desktop solution in a long time. Despite Microsoft attempting to down play interest, VECD emerged. As Citrix lost ground trying to protect the Presentation Server stronghold, they finally broke down, did a 360 degree about face, and sank 500M on XenSource.

Since they have renamed their legacy products and are attempting to broaden their vision beyond just "Application Delivery". Here at VMware we are building things from the ground up with virtualization in mind, not trying to retro fit legacy solutions to fit in a virtual world. Since the emergence of VMware VDI, millions of dollars are going into the R&D of network delivered desktops and applications. The result is innovation that improves user experience, desktop management and choice for IT organizations.

What does this mean for Citrix? For years there have been the conspiracy theories that Microsoft will buy Citrix. Over the years I have seen less and less evidence or reason to believe this, but I guess it could happen. For some time now, I have said Citrix is getting squeezed from the top by VMware and squeezed from the bottom by Microsoft. The crown jewel for Citrix is ICA. Without that, there is not a lot there you can't get from other cheaper more simple alternatives.

With the acquisition of Calista by Microsoft, it's clear they intended to continue the enhancement of RDP. With the RDP spec now open, more and more engineers can come to the party and rapidly further enhance RDP improving its performance and features in a broad array of use cases. With the XenSource acquisition, Citrix has dipped a toe in the open source world. Now that Micosoft has openly published the RDP specification, will Citrix set ICA free? Do they have any other choice? What long term value does ICA have with so many big companies now able to enhance RDP and in fact, already doing so?

VMware VDI - XenDesktop success and failure

wponder — Fri, 08 Feb 2008 11:25:00 GMT

Currently I am traveling across Germany meeting with customers and partners. This morning, just after I finalized preparation for a presentation. I decided to hop over to dabcc.com for a quick peak at what is going on in the SBC and virtualization community.

The first article that caught my eye was an article from a system provider in South Africa, OAS. The OAS was offering a test drive of a VMware VDI virtual desktop, connecting through VDM 2 and a XenDesktop based desktop.

To set the stage here. When I am traveling I use a MAC. If I need to access my VMware VDI desktop I can remotely connect with it using Safari. I also have a local Windows based virtual machine I can use with Fusion if needed. Using my MAC from the meeting room, here in Germany I fired up Safari and browsed over to the the OAS site for XenDesktop access.

At first it appears XenDesktop could not detect what client I needed.

When the client detection failed I decided to try the manual client detection.

The client detection failed so I decided to go ahead and download it. It took about five minutes to download the MACICA_OSX.DMG.zip file. Once it competed, I decided to install it. At this point I got a little confused as the installer said it was installing the ICA client for Presentation Server. Am I connecting to Presentation Server or XenDesktop? I figured I would find out once the client was installed an I get the chance to connect with a desktop. Unfortunately, that did not happen though. For some reason the ICA client could not be installed?

After this, I decided to compare the out of box experience for VDM 2 delivering a desktop. First I put the VDM 2 URL in Safari. I was asked to accept a certificate from OAS as I have never been to their site before. After accepting the certificate I was presented with a login.

After entering the login info and launching the tunnel I was presented with a list of desktops I was entitled to use.

After selecting my desktop and connecting my desktop session was successfully connected.

In all fairness, MAC support for VDM 2 is only experimental. I am unsure and have not checked if XenDestkop is planning to support MAC clients once its released. It may have been unfair of me to expect XenDesktop to work from my MAC?

Virtual Desktop Blog

What will Citrix do?

VMware VDI - XenDesktop success and failure