Why footprint does matter?


Unless you were on another planet for the last 4 weeks, you could not have missed Microsoft rambling posts here, here, here and here called Hypervisor Footprint Debate.  As usual a lot of misunderstandings and marketing bla bla. The fact is that Microsoft doesn’t have the versatility of VMware and cannot get out of its monolithic OSes period!

We’ve consistently taken the position that a smaller hypervisor is inherently better and we’ve found that most people agree with us, including Microsoft’s Technical Fellow, Mark Russinovich (see his presentation from Burton Group’s Catalyst Conference in July.)  The reasoning is that every line of code unavoidably adds reliability and security risks.  Microsoft has cited those same benefits of “smaller attack surface” from code size reduction as the motivation for their slimmed down Server Core and Hyper-V Server alternatives.  We don’t know how many lines of code are in a Hyper-V system, so we use the installed disk footprint — the size of the installed files needed to support virtual machines — as a reasonable proxy for lines of code.  In calculating hypervisor disk footprints we need to follow a few rules to ensure consistency:

Read the full response here. A unique one that clarify it all.

Advertisements

About PiroNet

Didier Pironet is an independent blogger and freelancer with +15 years of IT industry experience. Didier is also a former VMware inc. employee where he specialised in Datacenter and Cloud Infrastructure products as well as Infrastructure, Operations and IT Business Management products. Didier is passionate about technologies and he is found to be a creative and a visionary thinker, expressing with passion and excitement, hopefully inspiring and enrolling people to innovation and change.
This entry was posted in Uncategorized. Bookmark the permalink.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s