Storage device to which memory device are connectable in multiple stages

摘要

A storage device includes a controller device and a memory device. The controller device transmits communication information to which route information is added, the route information indicating a route to a destination of the communication information and including an address of a relay point that the communication information passes through before reaching the destination of the communication information. The memory device receives the communication information, and to transmit the communication information to a next relay point, when the destination of the communication information is not the local memory device, by using the address of the relay point included in the route information of the communication information.

主权项

1. A storage device comprising:
a controller device configured to transmit communication information to which route information is added, the route information indicating a route to a destination of the communication information and including an address of a relay point that the communication information passes through before reaching the destination of the communication information; and a memory device configured to receive the communication information, and to transmit the communication information to a next relay point, when the destination of the communication information is not the memory device, by using the address of the relay point included in the route information of the communication information, the memory device including:
a second storage unit configured to store correspondence information that is information associating identification information of another memory device connected to the memory device with a port number connected to the another memory device; anda processor that executes a procedure including:
receiving the communication information in which the route information is added to a payload section;determining whether or not the communication information is addressed to the memory device based on the route information;obtaining from the correspondence information a port number corresponding to identification information of the next relay point included in the route information when it is determined that the communication information is not addressed to the memory device and setting the obtained port number to a header section of the communication information; andtransmitting the communication information from a port corresponding to the port number set to the header section.