High Availability in Private and Public Clouds

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Migrating your applications into a private or public cloud won’t solve it’s high availability challenges. Public cloud infrastructure is usually designed for application developers that know what they’re doing; to make the most out of a public cloud deployment your applications have to be well-designed. For more details read:

Typical enterprise software development organizations disagree with that gloomy view, and virtualization vendors are more than happy to build an alternate-reality world for them in which stretching subnets and migrating live virtual machines into a public cloud makes sense. Unfortunately, the laws of physics don’t care about vendor marketing.

When your application developers figure out they have to respect the laws of physics your work has just started – you have to design your virtual networking environment before the applications are deployed, carefully considering failure domains usually known as availability zones and regions:

Finally, if you plan to build a private cloud infrastructure, you might find these blog posts useful:

Want to know more? Explore the cloud networking webinars, in particular: