Frank Denneman is the Machine Learning Chief Technologist at VMware. He is an author of the vSphere host and clustering deep dive series, as well as podcast host for the Unexplored Territory podcast. You can follow him on Twitter @frankdenneman


440 Stories by frankdenneman

Removing orphaned Nexus DVS

During the test of the Cisco Nexus 1000V the customer deleted the VSM first without removing the DVS using commands from within the VSM,...
4 min read

DRS Resource Distribution Chart

A customer of mine wanted more information about the new DRS Resource Distribution Chart in vCenter 4.0, so I thought after writing the text...
3 min read

Resource pools and avoiding HA slot sizing

Article about workaround by setting memory reservation on dedicated resource pool for VM to avoid large HA slot sizing and lower consolidation ratio.
1 min read

Impact of host local VM swap on HA and DRS

On a regular basis I come across NFS based environments where the decision is made to store the virtual machine swap files on local...
3 min read

VCDX number 029

Monday 8th of February I was scheduled to participate in the defend session of the VCDX panel at Las Vegas. For people not familiar...
1 min read

Sizing VMs and NUMA nodes

Note: This article describes NUMA scheduling on ESX 3.5 and ESX 4.0 platform, vSphere 4.1 introduced wide NUMA nodes, information about this can be...
5 min read

Top 25 Virtualization Bloggers

This week Eric Siebert processed all the votes and published this year’s Top 25 VMware/Virtualization Blogger list. Over 700 people voted, each casting 10...
1 min read

Voting closes at Friday!

Eric Siebert of started a new election of the best 20 bloggers in the VMware and Virtualization scene. Because even more top blogs...
27 sec read

Wrap-up 2009

Daniel Easons blog post inspired me to write a wrap-up of 2009 myself. Beside the career move described in the previous post, 2009 was...
55 sec read

Joining VMware

The year 2009 has been an interesting year. After leaving a long-term position, I participated in some really awesome projects, got to fiddle around...
35 sec read