Javadoc
Attaches an Amazon EBS volume to a running instance and exposes it as the specified device.
Note
Windows instances currently support devices xvda through xvdp. Devices xvda and
xvdb are reserved by the operating system, xvdc is assigned to drive C:\, and, depending on
the instance type, devices xvdd through xvde might be reserved by the instance stores. Any
device that is not reserved can be attached to an Amazon EBS volume. For a list of devices
that are reserved by the instance stores, go to the Amazon Elastic Compute Cloud Developer
Guide or Amazon Elastic Compute Cloud User Guide.