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by justinsb
5182 days ago
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Abstraction layers are nice in principle, but the issue isn't really the APIs, it is the different semantics. To give a concrete example, on Rackspace's (current) IaaS offering disks are local to the machine and persistent; on Amazon's offering disks are local and ephemeral, or locked to one AZ and persistent. The API issue is a triviality compared to hiding those details. I think that's the real power of OpenStack - the shared API is a convenience, but the shared model is priceless. |
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