Patent ID: 11907567
Assignee: KIOXIA CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 7:
8. A memory system connectable to a host, the memory system comprising:
a non-volatile memory; and
a controller electrically connected to the non-volatile memory and configured to control the non-volatile memory,
wherein the controller comprises a data erasure processing function and is configured to:
specify a partition format of a predetermined partition included in the non-volatile memory based on master boot record information stored in the non-volatile memory,
specify a first sector and a second sector of the predetermined partition based on the specified partition format,
specify a file system that manages the predetermined partition based on first information included in the first sector and second information included in the second sector,
specify logically erased first data and physically erase the first data when logical erasure of data in the predetermined partition is detected by a method consistent with the specified file system,

read a file system name set at a third offset of the first sector as the first information, and
when the file system name indicates a third file system, specify the file system as the third file system, wherein
the third offset is 0x03.