Computer system
AssigneeHitachi, Ltd.
InventorsNobuhiro YOKOI, Mutsumi HOSOYA, Ken SUGIMOTO
Life of this patent
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Abstract
A computer system includes a processor, a volatile storage device that stores a program to be executed by the processor, and a plurality of nonvolatile storage devices that store data. Each of the plurality of nonvolatile storage devices holds a first encryption key for encrypting and decrypting first data. Each nonvolatile storage device in the plurality of nonvolatile storage devices transfers the first data to another nonvolatile storage device in the plurality of nonvolatile storage devices in an encrypted or unencrypted state determined according to a predetermined rule.
Claims14
A computer system comprising:
- a processor;
- a volatile storage device that stores a program to be executed by the processor;
- and
- a plurality of nonvolatile storage devices that store data, wherein
- each of the plurality of nonvolatile storage devices holds a first encryption key for encrypting and decrypting first data, and
- each nonvolatile storage device in the plurality of nonvolatile storage devices transfers the first data to another nonvolatile storage device in the plurality of nonvolatile storage devices in an encrypted or unencrypted state determined according to a predetermined rule.
A data transfer method in a computer system,
- the computer system comprising:
- a volatile storage device that stores a program to be executed by a processor;
- and
- a plurality of nonvolatile storage devices, and
- the method comprising:
- setting a first encryption key for encrypting and decrypting first data to each of the plurality of nonvolatile storage devices;
- and
- transferring the first data to a first nonvolatile storage device in the plurality of nonvolatile storage devices from a second nonvolatile storage device in the plurality of nonvolatile storage devices in an encrypted or unencrypted state determined according to a predetermined rule.
Dependencies are inferred from the claim text.