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Frank Denneman
Worked at VMware
Lives in The Netherlands
932 followers|149,159 views


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Tech Evangelist PernixData and Technical advisor for CloudPhysics.
As Technology Evangelist I get to promote the awesome technology that is coming out of PernixData. Public speaking engagements and the use of multiple social media channels provide me the ability to communicate the vision of the company while driving the adoption of the PernixData FVP Platform.

Besides my role at PernixData I am also a technical advisor for CloudPhysics. In this role I provide strategical guidance for product direction and early product feedback.

I am a VMware Certified Design Expert (VCDX029) and the main author and owner of the VMware/Virtualization blog, which has been voted number 2 blog by the virtualization community this year. 

I am the co-author of the following books: 
VMware vSphere 4.1 HA and DRS Technical Deepdive (2010)
VMware vSphere 5.0 Clustering Technical Deepdive (2011)
VMware vSphere 5.1 Clustering Deepdive (2012)

I am a regular speaker at industry events like VMworld, VMware Partner Exchange and VMUG events.

Open connect on and you can follow me on twitter:

Bragging rights
VCDX029, Start-up Technical advisor, Author of top 5 blog, Author of Bestselling technical deepdive series
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The Netherlands
Other profiles
Contributor to
Tech Evangelist PernixData and Technical advisor for CloudPhysics.
  • VMware
    Sr. Architect Technical Marketing, 2009 - 2013
  • PernixData
    Chief Technologist, 2013 - 2016
  • CloudPhysics
    Technical Advisor, 2012 - 2015
Basic Information
Frank Denneman's +1's are the things they like, agree with, or want to recommend.
Interview with John Blumenthal, CEO of CloudPhysics

Introduction to CloudPhysics. A company's IT Infrastructure is crucial to its survival and succes, which is why most companies invest heavil

VAAI hw offload and Storage vMotion between two Storage Arrays -

Recently I received a question about migrating virtual machines with Storage vMotion between two Storage Arrays. More specifically if VAAI i

Storage DRS Device Modeling behavior |

During a recent meeting the behavior of Storage DRS device modeling was discussed. When I/O load balancing is enabled, Storage DRS leverages

Google Web Fonts Signika

Signika is a sans-serif with a gentle character, developed for wayfinding, signage, and other media where clarity of information is required

Storage DRS datastore cluster default affinity rule |

In vSphere 5.1 you can configure the default (anti) affinity rule of the datastore cluster via the user interface. Please note that this fea

How to create a "New Storage DRS recommendation generated" alarm -

It is recommended to configure Storage DRS in manual mode when you are new to Storage DRS. This way you become familiar with the decision ma

How to create a datastore cluster using the new web client. |

vSphere 5.1 main user interface is provided by the web client, during beta testing I spend some time to get accustomed to the new user inter

CloudPhysics in a nutshell |

Disclaimer: I’m a technical advisor for CloudPhysics. I’m very happy to see CloudPhysics coming out of stealth mode this week and making the

How to attach VM storage profiles to a virtual machine using the web cli...

Virtual Machine Storage Profiles are used to identify the storage capabilities necessary in order to properly run the application within the

Partially connected datastore clusters – where can I find the warnings a...

During my Storage DRS presentation at VMworld I talked about datastore cluster architecture and covered the impact of partially connected da

Storage DRS and alternative swap file locations

Can Storage DRS use alternative swap file locations? Yes! Can a datastore cluster be used exclusively for storing swap files, click to find

DRS clusters and allocating reserved memory |

As mentioned in the admission control family, multiple features on multiple layers check to there is enough unused reserved memory available

Storage DRS demo available on VMware TV |

If you haven't seen Storage DRS in action, check out the Storage DRS demo I've created for VMwareTV.

Fab-four: VMWorld 2012 sessions approved |

This morning I found out that my four sessions are accepted. I’m really pleased and I am looking forward to presenting at each one of them.

Blog post on |

As part of the Technical Marketing team of VMware focusing on the vSphere platform I contribute to the vSphere blog on From this

VM Storage profiles and Storage DRS – Part 1 |

In my previous article about how to configure storage profiles using the web client I stated that different storage profiles could be assign

Admission control and vCloud Allocation Pool model |

The previous article outlines the multiple admission controls active in a virtual infrastructure. One that always interested me in particula

VAAI and the Unlimited VMs per Datastore Urban Myth » – VMware vEvangelist

Speaking for myself, it's hard to believe that just a little over 2 years ago in October 2010, many were rejoicing the GA release of vSphere

Hot and Cold VM Mobility « by @ioshints

Another day, another interesting Expert Express engagement, another stretched layer-2 design solving the usual requirement: “We need inter-D

vSphere 5.1 vMotion deepdive |

vSphere 5.1 vMotion enables a virtual machine to change its datastore and host simultaneously, even if the two hosts don't have any shared s