Patent ID: 9369278
Filing Date: 2016-06-14
CPC Classification: G06F,H04L

Claim Text:
1. A storage device connected to a host computer, comprising: a disk drive device constituted of a plurality of disks for storing encrypted data, a first controller for performing control of transceiving data between the first controller and the host computer, and a second controller for maintenance or exchange for performing control of transceiving data between the second controller and the host computer, wherein the first controller has a means for using information on authentication and identification of the second controller as acquired from a managing server to access a key management server and to acquire key information, and a means for storing in a memory the key information of the second controller as acquired from the key management server, and the second controller has a means for reading the key information from the memory of the first controller to write the information in a memory, and a means for setting the second controller per se in a Ready state.