Secret History of OpenStack, the Free Cloud Software That’s Changing Everything

Re:Secret History of OpenStack, the Free Cloud Software That... by wmf on Monday April 02, 2012 @02:27PM (#3789393)

I agree that IaaS can be done much better. The networking and storage that's available is terrible; it's worse than ESX 1.5.

In the EC2/OpenStack model, you cannot have customers spool up VMs with arbitrary specs; they must choose from available flavors.

Are you talking about sizes? If you allow arbitrary sizes or CPU:RAM ratios you'll get fragmentation which you have to recoup by charging higher prices. If VMs are 1/2^Nth of a server, you can use a buddy allocator.

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Re:Secret History of OpenStack, the Free Cloud Software That... by ebbv on Monday April 02, 2012 @03:07PM (#3789579)

Yep talking about sizes (OpenStack calls them flavors, or at least did last year when I was looking into it.)

I realize it creates fragmentation, but it's one of the key features customers want -- and should be able to get -- out of a cloud system. And other platforms provide it.

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