'Create a new RBD image object
:param name: name of the image relative to the pool
:param pool: name of the pool holding the image
:param user: username to authenticate as
:param password: credentials for authenticating with
:param servers: list of hostnames for the server'

def __init__(self, name, pool, user, password, servers):

    super(RBDImage, self).__init__(FORMAT_RAW)
    self.name = name
    self.pool = pool
    self.user = user
    self.password = password
    self.servers = servers
