JP2992837B2 - Magnetic storage device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a magnetic storage device which is an external storage device of a computer system.
In order to prevent information leakage when the magnetic storage device is taken out, an information erasing function for intentionally erasing information written on the magnetic storage medium before taking the magnetic storage device out is provided in this magnetic storage device. It is the one that was given.

[0002]

2. Description of the Related Art FIG. 3 is a schematic view of a well-known magnetic disk drive which is a magnetic storage device of a conventional general computer system. FIG. 4 is a plan view showing the inside of a conventional general magnetic disk drive. In a disk device, its case 1a
Each member is attached to the following. That is, 2 is a magnetic disk which is a magnetic recording medium, 3 is a spindle for holding and rotating the magnetic disk 2, 4 is a spindle motor for rotating the spindle 3, and 5 is a read / write for reading / writing information to / from the magnetic disk 2. A read / write head that constitutes a write mechanism, and a head arm 6
And a base end of the head arm 6 is mounted on a rotatable carriage 7, which is rotated by a voice coil motor 8 during reading / writing. .

[0003]

In the magnetic disk drive 1 as described above, when it is necessary to take out the magnetic disk drive 1 on which information has been written to the magnetic disk 2 for repair or some other reason. In order to prevent the information written on the magnetic disk 2 from being leaked, the information written on the magnetic disk 2 is erased by an operation of a computer system operator according to a program.

[0004] Since the erasure of information is performed by an operator in accordance with a computer system program, it is difficult for an ordinary person other than the operator to easily perform the erasure, and the information is removed from the computer system and taken out. Magnetic disk drive 1
There is a problem that it is difficult to confirm whether the information written on the magnetic disk 2 has been erased without fail.

According to the present invention, in order to solve the above-described problems, when a magnetic storage device is taken out,
Even if the operator does not operate according to the program of the computer system before taking it out, by connecting the cable owned by only general managers other than the operator, or by operating the key switch Another object of the present invention is to reliably erase information written on a magnetic storage medium of a magnetic storage device and prevent leakage of information.

[0006]

According to the present invention, in order to achieve the above-mentioned object, a magnetic storage medium 10 is provided in a case 9a of a magnetic storage device 9 and information is read from or written to the magnetic storage medium 10. A read / write mechanism 11 is provided, and an information erasing circuit 12 is provided.
The magnetic storage device is configured such that an erasing current is passed from the information erasing circuit 12 to a read / write head constituting the read / write mechanism 11 to erase information written in the magnetic storage medium 10. .

[0007]

When the magnetic storage device 9 is taken out for repair or the like, the manager erases the erasing current from the information erasing circuit 12 by connecting the cable 13 or operating the key switch 17 before taking it out. The information written to the magnetic storage medium 10 can be reliably erased by flowing the data to the read / write heads constituting the read / write mechanism 11 at the same time, and the magnetic storage medium of the magnetic storage device taken out can be removed. Is not read and the information is not leaked at all.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a schematic view of a first embodiment of a magnetic storage device according to the present invention. Reference numeral 9 denotes a magnetic storage device, and the following members are attached to the case 9a. That is, reference numeral 10 denotes a magnetic recording medium such as a magnetic disk, and 11 denotes a read / write mechanism 11 for reading / writing information from / to the magnetic storage medium 10. When the magnetic storage medium 10 is a magnetic disk, it is not shown. Comprises a read / write head attached to the distal end of a head arm, a rotatable carriage to which the base end of the head arm is attached, and the like. The motor is turned by a motor. 12 is an information erasing circuit, 13
Is a cable connected to the connector 14 connected to the information erasing circuit 12 and the connector 15 connected to the read / write mechanism 11. When the administrator connects the cable 13 between the connectors 14 and 15, the information erasing circuit The erase current (for example, DC current) from the read / write mechanism 1
The information written to the magnetic storage medium 10 can be reliably erased by flowing all at once to the read / write head (not shown) constituting the magnetic disk 1. Reference numeral 16 denotes a connector for connecting the magnetic storage device 9 to a computer system.

FIG. 2 is a schematic diagram of a second embodiment of the magnetic storage device according to the present invention. The difference from the first embodiment shown in FIG. 1 is that an information erasing circuit 12 and a read / write mechanism 11 are provided. The key switch 17 is provided for connection. When the administrator inserts the key 18 into the key hole 19 and operates it, the key switch 17 is closed, and the erasing current from the information erasing circuit 12 is supplied to the read / write mechanism 1.
1 flows simultaneously to a read / write head (not shown) constituting the information storage device 1 so that information written in the magnetic storage medium 10 can be surely erased.

[0010]

As described above, the magnetic storage device of the present invention is provided with a magnetic storage medium and a read / write mechanism for reading / writing information from / to the magnetic storage medium in the case of the magnetic storage device. At the same time, an information erasing circuit is provided, and an erasing current flows from the information erasing circuit to a read / write head constituting a read / write mechanism by connection of a cable or operation of a key switch possessed by an administrator, and is transmitted to a magnetic storage medium. Since the written information is configured to be erased, even if the operator does not operate according to the program of the computer system, it is possible to connect the cable owned by only a general manager other than the operator, or to connect the key. By operating the switch, the magnetic storage medium of the magnetic storage device is taken out before the magnetic storage device is taken out. Reliably written information, and can easily be erased, there is an effect that it is possible to prevent the leakage of information.

[Brief description of the drawings]

FIG. 1 is a schematic diagram of a first embodiment of a magnetic storage device according to the present invention.

FIG. 2 is a schematic diagram of a second embodiment of the magnetic storage device of the present invention.

FIG. 3 is a schematic diagram of a well-known magnetic disk device which is a magnetic storage device of a conventional general computer system.

FIG. 4 is a plan view showing the inside of a conventional general magnetic disk drive.

[Explanation of symbols]

 Reference Signs List 1 magnetic disk device 1a case 2 magnetic disk 3 spindle 4 spindle motor 5 read / write head 6 head arm 7 carriage 8 voice coil motor 9 magnetic storage device 9a case 10 magnetic storage medium 11 read / write mechanism 12 information erasing circuit 13 cable 14 Connector 15 Connector 16 Connector 17 Key Switch 18 Key 19 Key Hole

Claims (1)

(57) [Claims] In a case (9a) of a magnetic storage device (9), a magnetic storage medium (10) and a magnetic storage medium (1) are provided.
0) is provided with a read / write mechanism (11) for reading / writing information, an information erasing circuit (12) is provided, and a cable (13) owned by an administrator or a key switch (17) is operated by an administrator. The information erasing circuit (12) is configured to pass an erasing current to a read / write head constituting a read / write mechanism (11) to erase information written in a magnetic storage medium (10). Characteristic magnetic storage device.