Dan Kusnetzky

Daniel Kusnetzky, a reformed software engineer and product manager, founded Kusnetzky Group LLC in 2006. He's literally written the book on virtualization and often comments on cloud computing, mobility and systems software. In his spare time, he's also the managing partner of Lux Sonus LLC, an investment firm.

Ken Hess

Kenneth 'Ken' Hess is a full-time Windows and Linux system administrator with 20 years of experience with Mac, Linux, UNIX, and Windows systems in large multi-data center environments.

Latest Posts

Single system image clusters: an idea whose time has come and gone?

At one time, applications were constructed as a monolithic mass of code that implemented all of the functions required to implement a complete solution including user interface (if it faced users), application processing, data management and storage management.  Some of the more sophisticated applications also included tools for application management and security.

April 30, 2007 by


Clusters, clusters and more clusters

Even though there are several different technologies involved and several different types of requirements, it now appears that any mulit-machine configuration is called a cluster. Here's a quick summary of the different configurations that are now using the same IT jargon term "Cluster".

April 29, 2007 by


Red Hat and Building the Open Source Virtualization Stack

Since my conversation with the good folks at Red Hat (see Discussion with Red Hat’s Joel Berman and Nick Carr - 1st take) I've been thinking about the company's strategy and how that plays out in the real world. Red Hat presents the notion that a stack of open source software can address organizations' IT requirements nearly as well or as well as can proprietary software.

April 25, 2007 by


XenSource: a virtual unknown?

Even though Xen, virtual machine software for industry standard systems, is well known, The company behind this software, XenSource, is not as well known. XenSource, with the help of the open source community, has developed software that securely juggle multiple virtual machines, each running its own operating environment, on a single physical system and produce close-to-native-machine performance.

April 22, 2007 by


Novell's Orchestrator

As I mentioned in my post, Overview of Novell's views on virtualization and again in my post, Conversations with Cassatt and Marathon, Thoughts on Novell and Red Hat, Novell appears to be focusing a great deal of attention on managing virtualized environments not just the tools of virtualization themselves. Along those lines, I had an opportunity to view a demo of Novell ZENworks Orchestrator presented by Richard Whitehead and Alan Murray of Novell the other day.

April 18, 2007 by


Cassatt - moving virtualization up a notch

I've been following Cassatt for a number of years and have always thought that the company has taken a fresh, different view of the concept of virtualization in the implementation of its product "Collage". In an attempt to catch up with what the company is doing now, I spoke with Jay Fry and Ken Oestreich.

April 17, 2007 by