Rear board of blade server, blade server and subrack

摘要

A rear board of a blade server, a blade server and a subrack are provided in the present invention. The blade server includes a front board and a back board, the rear board includes a standard ATCA interface, and the rear board is connected to the front board by the standard ATCA interface, a connector configured to connect hard disks is set on the rear board, and a portion of the rear board on which the connector is set is extended outward so as to accommodate at least two hard disks, and the at least two hard disks are connected to the connector. The blade server increase the ability of the heat dissipation ability of the front board, and the rear board supports data backup between the two hard disks and hot plug. This may improve the reliability and easy maintenance about the blade server.