Demo of Atlantis Computing's ILIO Persistent VDI from Citrix Synergy 2013 (It's really cool)

I caught up with Jim Moyle and Mark Nijmeijer at the Atlantis Computing booth to get a proper on-camera demonstration of Atlantis ILIO Persistent VDI. ILIO Persistent VDI, for those that don't know, uses RAM on the VDI host as the primary storage, sort of like a RAMDisk. This approach is so ridiculously fast that when tested with PassMark, it scores in the top ten fastest disks ever made. 

Speed is only one element, though, because we're talking about a huge amount of information. To combat this, ILIO Persistent VDI uses in-line deduplication to condense, on the fly, the amount of information stored among all the VMs. You may have heard of in-line dedupe as single-instance, block level storage, too. This is different from traditional deduplication, which relies on storage-side processes that run at scheduled intervals or when convenient in order to free up space. Most of us are aware that each instance of Windows is amazingly similar and easy to dedupe, but user data and personalities are as well, so even in non-persistent VDI, inline dedupe saves enormous amounts of space.

But that's not all! You can read Brian Madden's article from a few months ago for all the gorey details, but because there is so much commonality among VM data, it's very easy to ship the deltas across the wire, which means that this solution works for both non-persistent and persistent VDI. If a user with a persistent VM logs into a different host than normal, the blocks that differ from those stored on the host are shipped to it, and the user receives their machine. On top of that, data is easily replicated between sites (since we're only talking about deltas), which means ILIO Persistent VDI provides wicked fast desktops and availability.

This, along with the announcements by NVIDIA regarding GPU sharing, is what we've been waiting for in the VDI space for six years! I promise you won't be disappointed by the demo below. Check out Brian's article for more information on ILIO Persistent VDI, and while you're at it, check out the free update to our book, The VDI Delusion, which is now called The New VDI Reality: How the biggest barriers to VDI adoption have finally been solved, and what this means for the future of the enterprise desktop.

(Also, since we didn't put the link up in the video when we said we would, you can try this out yourself by visiting

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I don't know who the other guy was that was showing ILIO next to this guy, but he did not sell the product at all.  His exact words were "we're just a ram disk, nothing else"


Great demo by Mark! No smoke and mirrors but real use cases and REAL data (my mail was in his Inbox).

The demo shows that you can offer a superb user experience with awesome speed withouth reducing functionality for the user (like disabling search indexing or prefetching).

The concept of ILIO is as simple as it is brilliant, prevent data from reaching the SAN with inline deduplication (prevent the headache instead of taking an aspirine) and use memory as a primary storage location. And with the release of ILIO 4 persistent machines also benefit from the "In Memory" edition. Because storage is handled in a different way then before the consideration of PVS vs MCS has changed.

What I miss in the demo, a general trend it seems, is that Atlantis ILIO can be used for Hosted Private Computers (aka "VDI", I disklike that term) AND Hosted Shared Computers (RDS / XenApp).

ILIO for XenApp is also licensed per host ( / blade) which almost makes it a no-brainer.

PS: If you want to know more about the Replication Host (or the basics of ILIO) check out these article

(sorry for the shameless plug)