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Re:EC2 Dedicated Hosts by skj on Monday November 23, 2015 @07:22PM (#10618319)
With VMs the customer can share a physical host with others and not have security concerns. This cohosting lets aws pack customers more efficiently and have much better margins for the same quality service.

With containers on bare metal, they could not cohost customers.

Re:EC2 Dedicated Hosts by toomuchtodo on Monday November 23, 2015 @07:33PM (#10618356)
Uhh, even with containers you really can't cohost in a multi-tenant system. Containerization doesn't securely segregate arbitrary code in the same way traditional virtualization does, and there are still security issues with that.

I'm sure AWS is improving on this, as they need to with Lambda and its underlying containerization architecture. But everyone else? Its going to be a while before you can call it "secure".

Re:EC2 Dedicated Hosts by cpitman on Monday November 23, 2015 @08:11PM (#10618530)
It looks like you are in violent agreement
Re:EC2 Dedicated Hosts by toomuchtodo on Monday November 23, 2015 @08:16PM (#10618538)
We are! And I love that phrase :)