US 11,941,261 B2
Storage device
Kenichi Numata, Tokyo (JP)
Assigned to Kioxia Corporation, Tokyo (JP)
Filed by KIOXIA CORPORATION, Tokyo (JP)
Filed on Aug. 31, 2022, as Appl. No. 17/900,417.
Claims priority of application No. 2022-044310 (JP), filed on Mar. 18, 2022.
Prior Publication US 2023/0297251 A1, Sep. 21, 2023
Int. Cl. G06F 3/06 (2006.01)
CPC G06F 3/0622 (2013.01) [G06F 3/0658 (2013.01); G06F 3/0673 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A storage device, comprising:
a first storage region to which a first user is assigned and a second storage region to which a second user is assigned;
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.