JP2827961B2 - Data recovery method and device for hard disk 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 an external storage device of a computer, and more particularly to a hard disk driver.

[0002]

2. Description of the Related Art Conventionally, in a hard disk storage device, once a mechanical failure has occurred, data in a hard disk that has been normally recorded until then cannot be read. In order to avoid this, a method of duplicating a hard disk storage device or storing daily copy data has been adopted.

[0003]

Duplicating the hard disk storage device to prevent the data from becoming unreadable due to a failure in the mechanism of the hard disk storage device complicates equipment and imposes a great burden on costs.

An object of the present invention is to provide a data recovery method for a hard disk storage device and a device therefor with respect to data recorded in a failed hard disk storage device which has been impossible in the past.

[0005]

Means for Solving the Problems A data recovery method of a hard disk storage device of the present invention, properly recorded disk
This is a data recovery method for a hard disk drive in which a hard disk drive with a single disk mounted inside becomes unable to write and read due to a mechanical failure. Rotating the read head; detecting whether the read head is normally positioned on the track on the single disk; positioning the read head on the normal track by the detection; Attached to a single veneer
One the index of the index and a spindle that is
Matching, reading the data recorded on the single disk by the read head, inputting a read signal read by the read head to a normal hard disk driver,
Control the normal hard disk driver,
Outputting correct recovery data; and sequentially controlling the position of the read head positioned on a normal track along the track.

Further, the data recovery device for a hard disk storage device according to the present invention includes a single disk disk on which data has been correctly recorded .
A data recovery device for a hard disk storage device in which the hard disk storage device mounted in the unit becomes inaccessible for writing and reading due to a mechanical failure. A single disk taken out of the failed hard disk storage device is attached and rotated. a spindle, and on-track detector for detecting whether the head read the disk veneer on is positioned correctly on the track, the on-track
A carriage that positions the read head on a normal track based on a detection result of a detector, a delay unit that matches an index of the spindle attached to the rotating disk single plate with an index of the spindle, and A read head for reading data recorded on a single disk, a normal hard disk driver for inputting a read signal read by the read head, and a normal product for controlling the normal hard disk driver and outputting correct recovery data A hard disk driver controller; and a carriage controller for sequentially controlling the position of the read head positioned on a normal track along the track. Further, the hard disk storage device may be a magnetic disk storage device or an optical disk storage device.

[0007]

According to the present invention, a correctly recorded disc unit can be used.
Even if the hard disk storage device with the board mounted inside becomes unable to write and read due to mechanical failure, the single disk taken out from the failed hard disk storage device is attached to the spindle and rotated ,
The read-head is positioned on a normal track, complement the deviation of the index by delaying the index of the spindle mounted with the disk single board while rotating
Correct the read signal recorded on the disk veneer
Correct the index to the normal hard disk drive.
Input to the normal hard disk driver as a signal in the disk, and control the normal hard disk driver to sequentially output read data along the track.
The data of the failed hard disk storage device.
Data can be restored. In other words,
Single disk taken out of the hard disk storage device
With the disk veneer in the normal hard disk driver
To read and recover data
Things.

[0008]

Next, the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram of one embodiment of the present invention.

The single disk 1 is taken out from the failed hard disk driver, and is attached to the spindle 2 after cleaning. The spindle 2 is rotated at the same speed as the normal product hard disk driver 7, an analog read signal is extracted from the R / W head 3, and input to the on-track detector 6. The on-track detector 6 sends a command to the carriage controller 9 so that the R / W head 3 is on-track. If it does not go on-track due to eccentricity at this time,
The on-track detector 6 calculates the eccentric direction and the eccentric amount.
The single disk is reattached based on the calculated information, and adjustment is performed so that the on-track state is achieved. Where ontra
The reason for making adjustments to achieve
If not, analog lead taken out of R / W head
Unstable signal (predetermined amplitude cannot be obtained, amplitude is constant)
Etc.), causing a reading error.
Because On the other hand, the analog read signal is input to the normal hard disk driver 7 as a part of the read signal of the normal hard disk driver 7, and is read out as read data from the disk interface by the hard disk driver controller 8.

Also, data is usually written on a single disk.
If necessary, refer to the index of the attached spindle.
I started writing data and attached it when reading data
Open the lead gate based on the spindle index
To start reading. Therefore, once a failed
Remove the single disk 1 from the disk driver and
When attached to the spindle 2, the disk single plate 1
Index and index of attached spindle 2
Is misaligned and cannot be read normally.
I will. To correct this deviation, the attached spindle
2 is delayed by the delay unit 5.
And the index of the disk 1 and the spindle 2
Indexes need to match. In this way,
Normal index hard disk driver with correct index
7 Hard disk drive as index signal
If input to Iva7, read gate at correct timing
Can be opened, the disk veneer 1
Data reading becomes possible. If reading of one track is successful, the hard disk driver controller 8
Sends a command to the carriage controller 9 to move by the track pitch, seeks the R / W head, and reads the next track. Thus by sequentially seeks the head to read out the entire data is output from the hard disk driver controller 8.

[0012]

As described above, the data in the failed hard disk storage device could not be read once, but the data in the failed hard disk storage device can be recovered by using the present device. be able to.

[Brief description of the drawings]

FIG. 1 is a block diagram of one embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 1 single disk 2 spindle 3 R / W head 4 carriage 5 delay unit 6 on-track detector 7 normal hard disk driver 8 hard disk driver controller 9 carriage controller

Claims (4)

(57) [Claims] 1. A properly recorded disk veneer inside
A method for recovering data from a hard disk storage device in which the mounted hard disk storage device cannot be written or read due to a mechanical failure, comprising: attaching and rotating a single disk taken out from the failed hard disk storage device; Detecting whether the read head is normally positioned on the track on the disk veneer; positioning the read head on the normal track by the detection; and Attached
Matching the index with the index of the spindle; reading data recorded on the single disk by the read head; inputting a read signal read by the read head to a normal product hard disk driver Controlling the normal hard disk driver,
A data recovery method for a hard disk storage device, comprising: outputting correct recovery data; and sequentially controlling the position of the read head positioned on a normal track along the track. 2. A correctly recorded disc veneer inside.
A data recovery device for a hard disk storage device in which the mounted hard disk storage device cannot be written or read due to a mechanical failure, and a spindle for mounting and rotating a single disk taken out of the failed hard disk storage device. An on-track detector that detects whether the read head is normally positioned on the track on the single disk, and a carriage that positions the read head on a normal track based on the detection result of the on-track detector. Attached to the rotating disk veneer
A delay unit that matches the index of the spindle with the index of the spindle, a read head that reads data recorded on the single disk, a normal hard disk driver that inputs a read signal read by the read head, Control the normal hard disk driver,
A data recovery device for a hard disk storage device comprising: a normal hard disk driver controller that outputs correct recovery data; and a carriage controller that sequentially controls the position of the read head positioned on a normal track along the track. 3. The data recovery device for a hard disk storage device according to claim 2, wherein the hard disk storage device is a magnetic disk storage device. 4. The data recovery device for a hard disk storage device according to claim 2, wherein said hard disk storage device is an optical disk storage device.