Patent ID: 11941261
Assignee: KIOXIA CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 16:
17. A storage system, comprising:
a host device;
a storage unit having:
a first storage region to which a first user is assigned, and
a second storage region to which a second user is assigned;

a controller device connected to the host device and the storage unit, the controller device including:
a first controller capable of providing a data protection function for the first storage region and a data protection function for the second storage region; and
a second controller capable of providing the data protection function for the second storage region, wherein

the first controller includes a table for storing information about the data protection function,
the second controller is capable of referring to the table,
the first controller has a first authority to execute a first user authentication for the first storage region and a second authority to execute a second user authentication for the second storage region, and
the first controller is configured to:
provide the data protection function for the first storage region when the first user authentication is successful, and
provide the data protection function for the second storage region when the second user authentication is successful.