Creates a virtual storage within an existing virtual data center. Additional parameters can be specified, e.g. for
assigning a HDD image to the storage.
Updates parameters of an existing virtual storage device. It is possible to increase the storage size without
reboot of an already provisioned storage. The additional capacity is not added to any partition. You have to
partition the storage afterwards. Vice versa, it is not possible to decrease the storage size of an already
provisioned storage.