Abstract: Embodiments of the present disclosure provide methods and apparatuses for session management. A method implemented at a first network function (NF) may comprise detecting that a path between the first NF and a second NF is failed or the second NF is failed, wherein the second NF maintains one or more data network connections or sessions established between one or more user equipments (UEs) and one or more data networks; selecting an available second NF for the at least one of the one or more data network connections or sessions; sending at least one address or address range of at least one UE corresponding to the at least one of the one or more data network connections or sessions and respective priority metric of the at least one address or address range to the available second NF.

Abstract: A server cabinet, including: a cabinet body having a plurality of regions including a first region to store a server, a power supply region to store a power supply, a second region to store the server and a switch; and a cabinet backboard positioned at a back side of the cabinet body, and including a plurality of management backboards and a plurality of fans, in which each of the plurality of management backboards is respectively connected with the server and a central management module of the server cabinet, the server is connected with the corresponding management backboard via a connector and controlled by the central management module via the cabinet backboard. The server cabinet according to embodiments of the present disclosure can achieve a replacement of the management backboard and the server without powering off, thus greatly improving an operation and maintenance of the server cabinet.

Abstract: The present invention provides a server, including a casing; and at least one single server node of the server, disposed in the casing and comprising a hard disk of a first size, a drawout hard disk tray, a hard disk backplane, a mainboard and a node power distributing board, in which the hard disk of the first size is disposed on the drawout hard disk tray and at least two layers of the drawout hard disk trays are provided; each layer of the drawout hard disk tray is connected to the hard disk backplane via a retractable cable, or, each layer of the drawout hard disk tray is connected to the mainboard and the node power distributing board via the retractable cable, and the drawout hard disk tray is configured to perform a hot swap of the hard disk of the first size.

Abstract: A server cabinet, including: a cabinet body having a plurality of regions including a first region to store a server, a power supply region to store a power supply, a second region to store the server and a switch; and a cabinet backboard positioned at a back side of the cabinet body, and including a plurality of management backboards and a plurality of fans, in which each of the plurality of management backboards is respectively connected with the server and a central management module of the server cabinet, the server is connected with the corresponding management backboard via a connector and controlled by the central management module via the cabinet backboard. The server cabinet according to embodiments of the present disclosure can achieve a replacement of the management backboard and the server without powering off, thus greatly improving an operation and maintenance of the server cabinet.