JPH03102608A - Magnetic disk storage device - Google Patents

Abstract

PURPOSE:To eliminate dust of a magnetic head and a magnetic disk medium by rotating a spindle at a low speed and seeking the magnetic head from the outermost circumference of a magnetic disk medium to the innermost circumference simultaneously as the rotation so as to clean the magnetic head and the magnetic disk medium. CONSTITUTION:A spindle control section 7 rotating a spindle 2 at a low speed of several hundreds rpm based on an external primary request or a periodic request and a magnetic head control section 8 seeking the magnetic head 6 from the outermost circumference of a magnetic disk medium 3 to the innermost circumference simultaneously as the low speed rotation of the spindle 2 are provided. Thus, the magnetic head 6 and the magnetic disk medium 3 are cleaned by the seek operation. Thus, the dust generated by a CSS or the like and adhered onto the magnetic disk medium 3 and the magnetic head 6 is removed by the magnetic disk storage device itself and then the long term reliability of the magnetic disk storage device is improved.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a magnetic disk storage device for writing and reading information to and from a magnetic disk medium rotated by a spindle.

[Conventional Technology] Conventionally, this type of magnetic disk storage device has a spindle that rotates a magnetic disk medium at a high speed of several hundreds of Orρm, and a system that seeks along the radial direction of the rotating magnetic disk medium and transfers information to the magnetic disk medium. It is equipped with a magnetic head for writing and reading data. In the magnetic disk storage device, writing and reading are performed by rotating the magnetic disk medium at a constant rotational speed from start to stop.

[Problems to be Solved by the Invention] However, in the conventional magnetic disk storage device described above, while the magnetic disk medium is being transmitted over the UB at a constant rotation speed and the magnetic head is performing a seek operation, CSS, etc. If the generated dust adheres to the magnetic head and magnetic disk medium, write and read errors may occur with the magnetic head, and in this case, recovery is difficult and long-term reliability is lacking. be.

Therefore, an object of the present invention is to make it possible to remove dust attached to a magnetic head and a magnetic disk medium.

[Means for Solving the Problems] The technical means of the present invention for solving such problems is a spindle that rotates a magnetic disk medium at a high speed of several thousand rpm, and a spindle that rotates the rotating magnetic disk medium in the radial direction. In a magnetic disk storage device equipped with a magnetic head that seeks along a magnetic disk and reads and writes to and from a magnetic disk medium, the Svintle is rotated at a low speed of several hundred rpm based on a temporary or periodic request from the outside. It is equipped with a spindle control unit and a magnetic head control unit that simultaneously rotates the spindle at a low speed and causes the magnetic head to perform a C-seek from the outermost circumference to the innermost circumference of the magnetic disk medium, and this seek operation causes the magnetic head and the magnetic disk medium to It is designed to be cleaned.

[Embodiment] Hereinafter, a magnetic disk storage device according to an embodiment of the present invention will be described based on the accompanying drawings.

As shown in FIG. 1, the magnetic disk storage device 1 according to the embodiment includes a spindle 2 that rotates disk-shaped magnetic disk media 3 arranged in a plurality of vertical rows at a high speed of 3000 to 3600 rpm; Rotating magnetic disk medium 3
The magnetic head 6 is provided with a magnetic head 6 that seeks along the radial direction of the magnetic disk medium 3 and writes and reads 17 information to and from the magnetic disk medium 3. This magnetic head 6 is connected to the magnetic disk medium 3.
One is provided for each magnetic surface, and is attached to an arm-shaped carriage 5. The carriage 5 is horizontally moved by the carriage drive unit 4 so that the magnetic head 6 moves from the outermost circumference to the innermost circumference of the magnetic disk medium 3. Further, the magnetic disk storage device 1 according to the embodiment rotates the spindle 2 at a low speed of several hundred rpm based on a temporary request or a regular request from the outside, such as when the magnetic disk storage device l is abnormal. a spindle control unit 7 that controls a spindle rotation drive mechanism (not shown); and a carriage drive unit that simultaneously rotates the spindle 2 at low speed and simultaneously causes the magnetic head to seek from the outermost circumference to the innermost circumference of the magnetic disk medium 3. The magnetic head 6 and the magnetic disk medium 3 are cleaned by this seek operation.

Therefore, according to the magnetic disk storage device 1 according to the embodiment, normally the spindle 2h) is 3000 to 3600 rpm.
, and the magnetic head 6 performs writing and reading. FIG. 2 is a table showing the relationship between the rotation speed of the spindle 2, the position of the magnetic head 6, and time. During use of the magnetic disk storage device 1, when a writing failure or a reading failure occurs, the spindle control unit 7 controls the spindle controller 7 based on a temporary request or a regular request from the outside, as shown in FIG. Rotation speed of several 100 rpm
At the same time, the magnetic head controller 8 causes the magnetic head 6 to seek at low speed, thereby cleaning the magnetic disk medium 3 and the magnetic head 6. This results in
If the writing failure or printing failure is caused by dust attached to the magnetic disk medium 3 or the magnetic head 6, the dust is removed.

After cleaning, Svintl 2 will be placed in the hall from 3000 yen.
It rotates at 3,600 rpm, and then normal writing and reading can be performed.

[Effects of the Invention] As explained above, according to the magnetic disk storage device of the present invention, it is possible to clean the magnetic disk medium and the magnetic head based on a temporary request or a regular request from the outside in the event of an abnormality. Therefore, the dust generated by the CSS etc. and attached to the magnetic disk medium and magnetic head can be removed by the magnetic disk storage device itself.
This has the effect of improving the long-term reliability of the magnetic disk storage device.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing the configuration of a magnetic disk storage device according to an embodiment of the present invention, and FIG. 2 is a time chart showing the operation of the magnetic disk storage device. 1: Magnetic disk storage device 2: Spindle magnetic disk medium carriage drive section Carriage magnetic head Spindle control section Magnetic head control section

Claims (1)

[Claims] A spindle that rotates a magnetic disk medium at a high speed of several thousand rpm, seek along the radial direction of this rotating magnetic disk medium, and write to the magnetic disk medium.
A magnetic disk storage device equipped with a magnetic head that performs reading includes a spindle control unit that rotates the spindle at a low speed of several hundred rpm based on a temporary or periodic request from the outside; A magnetic disk characterized in that the magnetic head controller simultaneously causes the magnetic head to seek from the outermost circumference to the innermost circumference of the magnetic disk medium, and the magnetic head and the magnetic disk medium are cleaned by this seek operation. Storage device.