JPH10255451A - Method for supplying power to hard disk - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate comprehensive control management of power supply, to prevent the damaging of a hard disk data writing area and to augament the power saving, by providing a power source part having a control function, and turning on/off power supply to a plurality of hard disks based on sequence control. SOLUTION: During processing such as software installing, power supply to a hard disk 1 for installing or the like of a plurality of software elements is subjected to sequence control to supply power or cut off power supply by providing a power source part 3 having a control part 2 different from the power source of a write original data storage device. Thus, for supplying power or cutting off power supply to a plurality of hard disks based on sequence control, supplying of power/cutting off power to a plurality of the hard disks for processing such as installing is automatically performed. Further, in the output current capacity of power supply for the writer original data storage device, an electric capacity equivalent to a write destination hard disk is reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention improves the reliability of data writing by efficiently supplying power when data is simultaneously written to a plurality of hard disks by an information processing apparatus or the like. Regardless of the method, power is automatically supplied to and disconnected from multiple hard disks, and a hard disk that can perform highly reliable processing without damaging the hard disk at the end of data writing or when an error occurs The realization of a power supply method.

[0002]

2. Description of the Related Art When data is simultaneously written to a plurality of hard disks in the conventional example shown in FIG. 7, a method of supplying power to the hard disk is performed by using a write source data storage device (51) having write source data from a write destination data storage device (51). It is connected to the data storage hard disk (52) in a one-to-one connection manner, and does not comprehensively control and manage the power supply. After the data writing is completed, the write head is retracted from the data writing area of the hard disk. The power supply may be cut off without considering the time required to complete the operation. Further, this method is a method of supplying power to a hard disk, which has a problem in performing highly reliable processing, in which it is not possible to automatically cut off power supply upon detecting an abnormality in a write destination hard disk.

[0003]

SUMMARY OF THE INVENTION It is an object of the present invention to solve the following problems in a conventional power supply method for a hard disk when data is simultaneously written to a plurality of hard disks. . Since there is no comprehensive control of the power supply, power cannot be automatically supplied to multiple hard disks. I needed to go around. After the data write is completed, the power supply may be cut off from the data write area of the hard disk without considering the time until the write head completes the evacuation, so the data write area of the hard disk may be damaged. Also occurs. Since it is not possible to automatically cut off the power supply by detecting an abnormality in the write destination hard disk, it was not possible to save power where the power supply was originally cut off to save power.

[0004]

In order to solve the above-mentioned problems, the present invention provides a method of supplying power to a plurality of hard disks when data is simultaneously written to the plurality of hard disks by providing a power unit having a control unit. The power supply to a plurality of hard disks is supplied and cut off by performing sequence control. By this means, the sequence control is performed to supply and cut off, so that the power supply is comprehensively controlled and managed. After the data writing is completed, the power supply is cut off from the data writing area of the hard disk in consideration of the time until the write head completes the evacuation. Furthermore, power can be saved by detecting the abnormality of the writing destination hard disk and automatically cutting off the power supply. Therefore, an efficient and reliable power supply method for a hard disk is provided.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS First, as shown in FIG. 1, a power supply unit 3 having a control unit 2 is provided, and power supply to a plurality of hard disks 1 is supplied and cut off by performing sequence control. By this means, power supply to a plurality of hard disks is controlled by performing sequence control to supply and disconnect the power, so that power can be automatically supplied to and disconnected from the plurality of hard disks. Further, an effect of reducing the output current capacity of the power supply of the write source data storage device is obtained.

[0006] Next, as shown in FIG.
Starts the power supply to the hard disk 1 with a delay time for each hard disk 1 when data writing to the hard disk 1 is started. By this means, power supply to a plurality of hard disks is sequence-controlled and power supply is started, so that duplication of inrush current can be eliminated and power supply can be set so that current capacity can be set small.

[0007] Further, as shown in FIG.
Turns off the power supply after a lapse of time from the completion of data writing to the hard disk 1 until the write head completes the evacuation from the data writing area of the hard disk 1. By this means, after the writing of data to the hard disk is completed, the power supply is cut off from the data writing area of the hard disk after a lapse of time until the write head completes the evacuation. An effect capable of performing highly reliable processing without damaging the hard disk is obtained.

[0010] Further, as shown in FIG.
Turns off the power supply to the hard disk 1 when a data write failure occurs during data writing to the hard disk 1. By this means, the power supply can be automatically cut off by detecting an abnormality in the write destination hard disk, so that the power supply can be cut off to save power.

Next, as shown in FIG. 5, a plurality of types of power supply means 4 are provided in a power supply unit 3 having the control unit 2 and shared by a plurality of types of hard disks 1. By this means, a plurality of types of power supply means are provided so that a plurality of types of hard disks can be shared and supported.
The power supply unit having the control unit has an operation capable of coping with and coping with a plurality of types of hard disks.

As shown in FIG. 6, the control section 2 is provided with an interlocking connection section 5 which can correspond to a plurality of unit groups, and the power supply section 3 having the control section 2 and the plurality of hard disks 1 are connected. It is linked to a group of a plurality of units, which is a group of one unit. By this means, since an interlocking connection unit that can cope with the power supply unit having a plurality of the control units is provided, a large amount of data can be written to a large amount of hard disk in cooperation with the power supply unit having a plurality of the control units. An effect is obtained that enables simultaneous operations.

[0011]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of an embodiment of the present invention; FIG.

Reference numerals used in the drawings of the embodiments according to the present invention shown in FIGS. 1 to 6 will be collectively described below. 1
Is a hard disk for writing and storing data in an information processing device or the like. Reference numeral 2 denotes a control unit that controls power supplied to the hard disk 1. Reference numeral 3 denotes a power supply unit that supplies power to the hard disk 1. Reference numeral 4 denotes a power supply unit that supplies power to the hard disk 1. Reference numeral 5 denotes an interlocking connection unit that enables simultaneous writing of data to a large number of hard disks in cooperation with a power supply unit 3 having a plurality of control units 2.

FIG. 1 is a principle diagram of the present invention, and shows a block diagram of the main components. In the figure, for example, during processing such as software installation, the power supply to the hard disk 1 to be processed such as installation of a plurality of software is performed by a power supply unit having a control unit 2 different from the power supply of the writing source data storage device. 3, and supply and cut are performed by performing sequence control. In this way, power supply to a plurality of hard disks is controlled by performing sequence control to supply and disconnect the power. Therefore, power can be automatically supplied to and disconnected from a plurality of hard disks to be processed such as installation. Further, the current capacity of the write destination hard disk in the output current capacity of the power source of the write source data storage device can be reduced.

FIG. 2 shows a second embodiment of the present invention, and shows a timing chart of power supply. In FIG. 1, the controller 2 starts power supply to the hard disk 1 sequentially with a delay time td for each hard disk 1 when data writing to the hard disk 1 is started. This allows
Since power supply to a plurality of hard disks is started with the delay time td, duplication of inrush current can be eliminated, and power supply with a small current capacity can be performed.

FIG. 3 shows a third embodiment of the present invention, and shows a timing chart of power-off. In FIG. 1, the controller 2 cuts off the power supply after a lapse of a time th until the write head completes the evacuation from the data write area of the hard disk 1 after the data write of the hard disk 1 is completed. As a result, after the writing of data to the hard disk is completed, the power supply is cut off from the data writing area of the hard disk after a lapse of th until the write head completes the evacuation. It is possible to perform a highly reliable process that does not sometimes damage the hard disk.

FIG. 4 is a fourth embodiment of the present invention, and shows a timing chart of power-off. In the figure, the control unit 2 cuts off the power supply to the hard disk 1 when a data write failure occurs during the data writing to the hard disk 1. With this, the power supply can be automatically cut off by detecting an abnormality of the write destination hard disk, so that the power supply can be cut off to save power in the power supply unit.

FIG. 5 is a block diagram showing the main components of a fifth embodiment of the present invention. In FIG. 1, for example, an IDE hard disk and a SCSI
Like a type hard disk, a power supply means 4 such as a drawer lead having a connector at the end, which is compatible with a plurality of types of hard disks 1, is provided to cope with a plurality of types of hard disks 1 in common. Thus, since a plurality of types of power supply means are provided so as to be able to cope with a plurality of types of hard disks, the power supply unit having the control unit can cope with a plurality of types of hard disks. .

FIG. 6 is a block diagram showing the main components of a sixth embodiment of the present invention. In the figure, the control unit 2 is provided with an interlocking connection unit 5 capable of handling a plurality of unit groups, and the power supply unit 3 having the control unit 2 and the plurality of hard disks 1 are grouped into one unit group. Link with the unit group. In this way, since the power supply unit having a plurality of the control units is provided with an interlocking connection unit that can cope with the power supply unit, a large amount of data can be written to the hard disk in cooperation with the power supply unit having the plurality of the control units. This can be done simultaneously.

[0019]

The effects of the present invention described above will be described in the order of claims.

First, power is supplied to a plurality of hard disks by providing a power supply unit having a control unit and performing sequence control to supply and disconnect power. Thus, the power supply to the plurality of hard disks is supplied and disconnected by performing sequence control, so that the power can be automatically supplied to and disconnected from the plurality of hard disks. Further, the output current capacity of the power supply of the write source data storage device can be reduced.

Next, the controller starts power supply to the hard disk with a delay time for each hard disk when data writing to the hard disk is started. In this way, power supply to a plurality of hard disks is started with a delay time, so that in addition to the above-described effects, duplication of inrush current can be eliminated and power supply can be set so that current capacity can be set small.

Further, the control unit cuts off the power supply after a lapse of time from the completion of the data writing of the hard disk to the completion of the evacuation of the write head from the data writing area of the hard disk. With this, after the data writing to the hard disk is completed, the power supply is cut off from the data writing area of the hard disk after a lapse of time until the write head completes the evacuation.
In addition to the above effects, it is possible to perform highly reliable processing without damaging the hard disk at the end of data writing or when an abnormality occurs.

Further, the control unit cuts off the power supply to the hard disk when a data write failure occurs during data writing to the hard disk. Thus, the power supply can be automatically cut off by detecting an abnormality in the write destination hard disk. In addition to the above-described effects, the power supply can be cut off to save power.

Next, a plurality of types of power supply means are provided in the power supply unit having the control unit so as to be commonly used for a plurality of types of hard disks. With this, since a plurality of types of power supply means are provided so as to be able to cope with a plurality of types of hard disks, in addition to the above-described effects, the power supply unit having the control unit is shared by a plurality of types of hard disks. To be able to respond.

Further, the control unit is provided with an interlocking connection unit which can correspond to a plurality of unit groups, and the power supply unit having the control unit and the plurality of hard disks are divided into a plurality of unit groups. Interlock. With this,
In order to provide an interlocking connection unit capable of cooperating with the power supply unit having the plurality of control units, in addition to the above-described effects, a large amount of data is transferred to a large amount of hard disks in cooperation with the power supply unit having the plurality of control units. Writing can be performed simultaneously.

[Brief description of the drawings]

FIG. 1 is a principle diagram of the present invention.

FIG. 2 is a diagram showing a second embodiment of the present invention.

FIG. 3 is a diagram of a third embodiment of the present invention.

FIG. 4 is a diagram showing a fourth embodiment of the present invention.

FIG. 5 is a diagram showing a fifth embodiment of the present invention.

FIG. 6 is a view of a sixth embodiment of the present invention.

FIG. 7 is a diagram showing an example of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hard disk 2 Control part 3 Power supply part 4 Power supply means 5 Interlocking connection part

Claims (6)

[Claims] In a method for supplying power to a hard disk when data is simultaneously written to the plurality of hard disks, a power supply unit (3) having a control unit (2) is provided to provide power to the plurality of hard disks (1). A method for supplying power to a hard disk, comprising supplying and disconnecting power by performing sequence control. 2. The control unit (2) starts supplying power to the hard disk (1) with a delay time for each hard disk (1) at the start of writing data to the hard disk (1). Item 7. The method for supplying power to a hard disk according to item 1. 3. The controller (2) cuts off the power supply after a lapse of time from the completion of the data writing to the hard disk (1) until the write head completes the evacuation from the data writing area of the hard disk (1). ,
2. The method for supplying power to a hard disk according to claim 1, wherein: 4. The control unit (2), if a data write failure occurs during data writing to the hard disk (1), cuts off power supply to the hard disk (1). Item 7. The method for supplying power to a hard disk according to item 1. 5. A power supply section (3) having said control section (2) is provided with a plurality of types of power supply means (4), and is commonly used for a plurality of types of hard disks (1). The method for supplying power to a hard disk according to claim 1. 6. The control section (2) includes an interlocking connection section (5) capable of handling a plurality of unit groups, and the power supply section (3) having the control section (2) and a plurality of hard disks (1). 2. The method according to claim 1, wherein the method is linked to a plurality of unit groups, each of which is a unit group.