A system, which may be a multi-dimensional memory cluster, is provided. In some embodiments, the system includes a first node (205), having an external port for making a connection to a host (207); a second node (205), connected to the first node (205) by a first memory-centric connection; the second node (205) storing a service level descriptor; the first node (205) being configured to: receive, from the host (207), a first request (825), addressed to the second node (205), for the service level descriptor; and forward the first request (825) to the second node (205), the second node (205) being configured to: receive the first request (825); and send a first response, to the first node (205), the first response including the service level descriptor of the second node.