Daniel Feller

Daniel Feller is a Lead Architect at Citrix.  With a app and desktop virtualization history dating back to 1997, Daniel has participated in many different deployments taking on many different roles.  After graduating from Purdue University, Daniel started out as an IT Admin deploying WinFrame and MetaFrame 1.0. Daniel soon joined Citrix Consulting as one of the first consultants and spent many years working on some of the world's largest and most complex environments. In addition to field projects, Daniel has also authored several well known whitepapers like the XenDesktop Design Handbook and created the intricate logic behind Citrix Project Accelerator.  Daniel can usually be seen speaking at conferences focusing on design topics for application and desktop virtualization.
  1. VMWorld Preview: XenApp/XenDesktop Design Guides on vSphere 6


    Are you going to VMWorld? Citrix is. Are you thinking about vSphere 6.0? Citrix did. Are you wondering how XenApp and XenDesktop performs on the latest hypervisor from VMware? Citrix was. The good news is that we've completed our analysis of vSphere 6.0 for XenApp and XenDesktop and we can now answer the question of how many physical servers does it take to deliver a pooled virtual desktop to ...

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  2. Bringing Linux and Windows Together


    If you were at Citrix Synergy, you heard about XenApp/XenDesktop adding support for Linux virtual desktops. As my hero Homer Simpson says, "I'm not impressed easily … WOW a blue car!" And that is what we have, a new car color. We had red cars (Windows applications), green cars (Windows desktops), and now blue cars (Linux desktops). From my perspective, these are simply different applications we ...

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  3. DNA Can Tell You A Lot About Your Application


    I love seeing crazy comparisons and statistics, especially if it has anything to do with science. Deoxyribonucleic acid (DNA) If laid out end-to-end, all DNA within your body would go from the Earth to Pluto and back to the Earth (too bad Pluto is not a planet anymore.) Humans share 99% of their DNA with everyone else (makes the 7 degrees of separation game kind of pointless.) If you could ...

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  4. Click, Play and See the Citrix Optimization for Microsoft Lync

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    I spent the last few blogs, dissecting Microsoft Outlook and how we can integrate an Exchange Online server, as part of Office 365, with XenApp and XenDesktop. Can I use a Cached Exchange Mode with XenApp and XenDesktop When to use Cached Exchange Mode with XenApp and XenDesktop How to use Cached Exchange Mode with XenApp and XenDesktop (I really need to be a little more creative with these ...

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  5. Office 365 for XenApp


    One of my favorite foods is Chicago deep-dish pizza. Every time I end up in Chicago, I try to hit up one of the great deep dish pizza places (Lou Malnati's, Gino's East, Giordano's, etc). Unfortunately, I can't get to Chicago as often as I want a thick slice of pizza.  So, I've tried to make my own. Most of my attempts were edible.  But, after ...

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  6. You don’t have to be a rocket scientist to see value of RAM Cache

    Windows-Not the Operating System Kind!

    A few years ago, we replaced all of our windows in our home (I'm talking about the panes of glass you look through, not the operating system). In the process, of course we talked with a few different companies who stopped by.  We went through their product portfolio and brought along samples. One demonstration stuck with me. The sales person, placed his sample window flat ...

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  7. ESG Lab Spotlight Report: Up to 80% Reduction in Storage Cost for VDI and RDS

    You've heard the news, you've seen the videos, and now the storage savings have been verified! According to an ESG report, the new RAM Cache with Disk Overflow feature, included in the XenApp and XenDesktop 7.6 release, has the potential to reduce storage costs by 80% or more. Now before you stop reading thinking this is too good to be true, think about the storage ...

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  8. Click, Play & See How New XenDesktop & XenApp Storage Optimizations Improve the User Experience

    Play Video

      There's no better way to learn than to see the new technology Sure.  I've written and seen numerous blogs/tweets about how great the new storage optimization feature is for XenApp and XenDesktop. I've read how this feature can reduce IOPS from an average of 15 IOPS per Windows 7 user down to 0.1 IOPS. I've read how this feature functions by creating a small RAM buffer within ...

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  9. Should I upgrade from XenApp 7.5 to XenApp 7.6?

    After delivering the XenApp 7.6 Upgrade webinar I received a few questions asking if it is a good idea to upgrade from XenApp 7.5 to XenApp 7.6. My first reaction is, "Of course you should. Why wouldn't you?"   But I'm a little biased J You need to ask yourself if the new features within XenApp 7.6 are important enough to upgrade. Look at the following subset of features and ...

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  10. XenApp 7.6 Upgrade – You got questions, I got answers

    Recently, I gave a webinar (recorded for your viewing pleasure) on upgrading to XenApp 7.6, and while this webinar is just one of many efforts Citrix is doing to help everyone make the upgrade to XenApp 7.6, there was a big turnout.  Citrix has a website (www.citrix.com/xenapp/upgrade) dedicated to helping all of you, who are looking at upgrading your existing XenApp to 7.6, with links ...

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