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You now have a running instance in the cloud. This flavor we used is m1.tinysmall, and that is an apt name: it only has 5GB 20 GB of root storage! This might be enough for the operating system and the applications to be installed, but what about the data you generate, like databases? Not only will you need more than 5GB, the . The nature of the instances are ephemeral, so any data left in an instance when it is is destroyed is gone for good. It makes much more sense to create a data volume that is independent of the instance, and can be attached and reattached as needed, much like attaching a USB disk to the computer.
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