Computer, hard disk device, disk device sharing system composed of the plural said computers and shared hard disk device, and sharing method applied to the said sharing system
First Claim
1. A disk device sharing system having plural computers executing an application program and a hard disk device shared by the plural said computers in which the plural said computers and the said hard disk device are interconnected via a network, wherein the plural said computers have a first operating system executing the said application program and a second operating system performing communication processing between the said computers and the said hard disk device, the said first operating system and the said second operating system being executed to be independent from each other.
1 Assignment
0 Petitions
Accused Products
Abstract
There is provided a disk device sharing system which, in an environment in which plural computers and a shared hard disk device are interconnected via a network, can realize safe data communication between the computers and the hard disk device and can reduce the operation cost needed for maintenance of the computers.
One computer is equipped with two OSs. One is a first OS executing an application program. The other is a second OS performing communication processing with a shared hard disk device. Access from the application program to the shared hard disk device must be done via the second OS. The application program and the first OS are controlled so as not to directly access the hard disk device.
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Citations
20 Claims
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1. A disk device sharing system having plural computers executing an application program and a hard disk device shared by the plural said computers in which the plural said computers and the said hard disk device are interconnected via a network, wherein
the plural said computers have a first operating system executing the said application program and a second operating system performing communication processing between the said computers and the said hard disk device, the said first operating system and the said second operating system being executed to be independent from each other.
- 7. A computer having a first OS and a second OS, wherein the said first OS and the said second OS are executed to be independent from each other, the said computer has application software used by a user and a communication processing part, data obtained after the said user executes the said application software by control of the said first OS is encrypted by control of the said second OS in an encryption processing unit of the said communication processing part, and the said encrypted data is transmitted via a network part controlled by the said second OS to the hard disk device connected to an external interface.
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10. A hard disk device having a CPU, a memory, a hard disk unit and a network part, wherein
the said CPU includes a boot processing part, an authentication program unit, a communication processing part and a disk management part controlling the said hard disk unit; -
the said communication processing part has an encryption processing unit and key-generation data;
the said authentication program unit holds hardware information of each of plural computers connected via the said network part and user information managing said computer;
the said hard disk unit has plural areas in which the said hardware information for each of the plural said computers is stored; and
the said encryption processing unit processes a boot request transmitted from the said computer in the said boot processing part, generates key data based on the said key-generation data, and adds the said key-generation data or key data to the said hardware information to deliver it to the said computer transmitting the said boot request. - View Dependent Claims (11, 12, 13, 14, 15, 16)
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17. A disk device sharing method in a computer system having plural computers and a hard disk device shared by the plural said computers in which the plural said computers and the said hard disk device are interconnected via a network, comprising:
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a step in which the said computer system performs boot processing;
a step in which after the said boot processing, the said computer generates authentication to transmit it to the said hard disk device after a user inputs an authentication ID;
a step in which the said hard disk device performs authentication processing of the said authentication and an encryption processing part of the said hard disk device generates key data to the plural said computers; and
a step in which the said key data is delivered to the said computer together with an operating system necessary for execution of the said computer and application software used by the said user. - View Dependent Claims (18, 19, 20)
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Specification