frankdenneman

  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

IP-Hash versus LBT

vSwitch configuration and load-balancing policy selection are major parts of a virtual infrastructure design. Selecting a load-balancing policy can have impact on the performance...
5 min read

Dutch vBeers

Simon Long of The SLOG is introducing vBeers to Holland. I’ve copied the text from his vBeers blog article. Every month Simon Seagrave and...
54 sec read

Re: impact of large pages on consolidation ratios

Gabe wrote an article about the impact of large pages on the consolidation ratio, I want to make something clear before the wrong conclusions...
41 sec read

Setting Correct Percentage of Cluster Resources Reserved

vSphere introduced the HA admission control policy “Percentage of Cluster Resources Reserved”. This policy allows the user to specify a percentage of the total...
3 min read

'Draft' of the vSphere 4.1 Hardening guide released

The ‘Draft’ of the vSphere 4.1 Hardening guide has been released. This draft will remain posted for comments until approximately the end of February...
9 sec read

HA and DRS book in action

0 sec read

Beating a dead horse – using CPU affinity

Lately the question about setting CPU affinity is rearing its ugly head again. Will it offer performance advantages for the virtual machine? Yes it...
6 min read

AMD Magny-Cours and ESX

AMD’s current flagship model is the 12-core 6100 Opteron code name Magny-Cours. Its architecture is quite interesting to say at least. Instead of developing...
1 min read

Funny: HA and DRS technical deepdive audiobook

During a conversation the idea of an audiobook of the HA and DRS book spawned. Within a couple of minutes, I found the following...
37 sec read

Impact of oversized virtual machines part 3

In part 1 of the series of post on the impact of oversized virtual machines NUMA architecture, memory overhead reservation and share levels are...
4 min read