Code review comment for lp:~yamahata/nova/boot-from-volume-2

> Can you give more information or point me to documentation on what "ephemeral"
> means in this context? Seemingly "ephemeral" devices won't persist on reboot,
> or something to that effect?

Ephemeral is the aws name for local storage that the vm gets that isn't part of the image. In the libvirt driver we attach a second unformatted drive as the "ephemeral" space.