I’ve been looking at the breakdown of a desktop in a series of blogs. In the first blog, I talked about how every desktop starts with a base operating system. The second blog talked about application delivery and integration into the OS. The third layer of a desktop is personalization. Many people think that personalization is simply a user’s profile. Well, personalization goes well beyond that.
Think, for a moment, about what you do to your laptop or desktop to personalize it for yourself. Ignore the whole concept of virtual desktops at this point. I’ve done the following to my own Citrix laptop:
Settings: I’ve changed the default settings for, well, just about everything, operating system and applications.
- Desktop background is Homer Simpson.
- My computer icon is Homer and the Recycle Bin is Lisa (because Lisa is the environmental Simpson).
- I’ve configured my delivered applications with Citrix Visio stencils, Outlook with my personal signature, Office custom dictionary with terms like XenApp, XenDesktop, XenServer, NetScaler and WANScaler.
- I’ve added numerous favorites into my browser
Local Applications: Even though I receive most of my applications from Citrix IT, I’ve also installed a few applications on my own.
- Video recording software: I continue to post video blogs and record configuration videos for Citrix solutions. I need a video recording solution not delivered by the IT department.
- Video Player: I’ve had to install numerous codecs/video players for different Citrix Videos I’ve created
- Instant Messenger: I’ve installed different IM programs so I can talk to coworkers
- Browser: Not everyone uses Internet Explorer. With Firefox, Chrome, and others different people want to use different browsers.
Information (Data): The data category is very important for personalization. You want to make sure your data is available where you would normally place it. When you do a Save in Microsoft Word, the application defaults to Documents.
Attachments: What attachments do you use on your desktop? I’ve connected different digital cameras, webcams, MP3 players, mobile phone and printers. Although many might not be Corporate Approved, they have been needed from time-to-time.
By modifying application and system settings, adding your own local applications, attaching different peripherals and creating, storing and access data, you have turned an otherwise standard desktop into your very own, personal desktop. That was the easy part. The hard part is how do we virtualize the personalization layer so it can be applied during logon and change an otherwise standard corporate desktop, to one that is completely inline with what the user requires? I could spend an entire blog on each of these four items, which I might do in the future, but for now I’ll summarize.
A major part of the personalization strategy is focused on Profiles. Most people cringe when they hear profiles because of issues they’ve encountered with Terminal Services and XenApp. However, think about why we had profile issues in a XenApp world? Users would log on to many XenApp servers at a time, resulting in their roaming profile being pushed to numerous servers. Then when you logged out, that profile was uploaded, resulting in 1 profile overwriting another profile. With XenDesktop, how many virtual desktops will most people use at a time? One. Because of this design consideration, many of the challenges for profiles would be non-existent.
However, we still must setup profile correctly. We need to make sure the profile are optimized so they load faster (which is possible with the help of the Citrix User Profile Manager). Also, we need to make sure the profiles are configured in such a way that the special folders (Desktop, Favorites, etc) are redirected off of the virtual desktop and onto persistent storage (File server). I’m briefly talking about profiles because in order to do it correctly, you need to have a solid profile strategy, something too long to discuss in this blog posting. Right now, we can’t do everything we need in profiles.
For Attachments we have to rely on virtual channels between the user’s endpoint and the virtual desktop. Whenever a USB device is plugged into the endpoint, it should appear on the virtual desktop. With XenDesktop, this is a work in progress. Some things work and some do not. But now is a good time to generate your list of what devices are required so you are ready to test with subsequent versions of XenDesktop.
The final item, applications, is an interesting topic. Applications are a layer in the desktop but it is also part of personalization because users add their own apps to personalize the desktop. Before we go to potential solutions, we need to determine if this is needed. Do you want users to be installing untested, untrusted, nonstandard applications into your protected data center? Or should you require the users to install these types of applications on their own end point device, outside of the data center? This is the first decision. As part of the virtual desktop analysis, you will hopefully identify the non-IT applications. If certain applications are used by a number of employees, maybe IT needs to add these into the application layer and start delivering them as a corporate resource. If not, users will install the applications on their own. If using pooled desktops in XenDesktop, those changes will be destroyed upon logout. This will cause frustration and disapproval of the solution. You can either
- Grant certain users assigned virtual desktops instead of pooled. With assigned virtual desktops, the desktop is never destroyed and only belongs to a single user, but this brings about a whole slew of issues around maintenance and management
- Train users to install the applications on their local end point device
- Use a some other solution that is not released yet that virtualizes any installed application and delivers to the user on future virtual desktops. I haven’t seen anything like this yet. Who knows what the future will hold.
Hopefully, this blog has shed some light onto the complexities of personalization. I wish I could say Citrix has all of the solutions in XenDesktop right now, but I doubt many of you would believe me. I can tell you that Citrix is working on this as this is the personalization discussion is a major piece of the virtual desktop puzzle. BTW, if you want to remember the the four areas of Virtual Desktop Personalization, just remember the LISA Areas for Personalization: Local applications, Information (data), Settings, and Attachments. This goes hand-in-hand with the BART Principles of application integration for virtual desktops.