Beware the danger of building out isolated network and application network infrastructures in the cloud lest we end up with silos from which it is difficult to escape.  


While writing a separate post on the business value of public versus private cloud computing investments I specifically called out the fact that infrastructure – virtual or physical – provisioned in a cloud environment is applicable only to that cloud environment; it really can’t be shared within the enterprise architecture or other public cloud computing environments, for that matter.

That led to considering the impact of the cloud computing deployment model on general application architecture and how much “sharing” of provisioned resources would occur “out there”. There appears to be a very real possibility that the lack of visibility in cloud computing environments may very well lead to the creation of silos in the cloud.