JPH01234915A - Information processing system - Google Patents

Abstract

PURPOSE:To prevent data from being destructed or erased due to the turning of a switch on a power supply board to its off state during the period of access to an external storage device by maintaining power supply to a system up to the end of data transfer from an information processor to the external storage device. CONSTITUTION:Power supply from an AC power source to the power supply board 3 is maintained by a relay 5 in response to the input of an access signal indicating the execution of access between the information processor 1 to an auxiliary storage device 2 and power supply from the power supply board 3 to the processor 1 and the device 2 can be maintained. Thereby, power can be stably supplied to the processor 1 and the device 2 during the period of access from the processor 1 to the device 2 independently of the turn-on/turn-off of the switch 4. Even if the switch 4 is turned off during the period of access from the processor 1 to the device 2, data can be prevented from destructed or erased.

Description

[Detailed description of the invention] Anti-hill beans! The present invention relates to an information processing system, and more particularly to a power supply panel used in an information processing device constituting the information processing system.

Traditionally, the power supplied to information processing devices has been supplied to external auxiliary storage devices (for example, floppy disk devices, hard disk devices, magnetic tape devices, etc.) 2, as shown in Figure 2. It was dependent only on the on/off status of the switch 4 on the power panel 3, regardless of the operation of the .

Originally, the purpose of the auxiliary storage device 2 is to store data processed by the information processing unit "I11" rather than to temporarily store data.

Normally, the data processed by the information processing device 1 is often a large amount of data, so it takes a long time to complete the processing of this data. During this time, the operator often does nothing, and what's more, he uses auxiliary memory! If the switch 2 is not carefully monitored to see if it is operating, it will appear as if no processing is being performed, so the switch 4 of the power panel 3 may be turned off.

In such a case, the power to the entire system will be cut off by turning off the switch 4 on the power panel 3, or the power will be turned off to the information processing device 1 and the auxiliary storage device 2 separately. 1, only the auxiliary storage device 2 is powered on, but the information processing device 1 is powered on.
A situation arises in which the power to the device is cut off.

In the power supply panel 3 used in such conventional information processing and devices, by turning off the switch 4, power supply to the system is stopped regardless of the operation of the auxiliary storage device 2. Therefore, there is a drawback that data transferred to be stored in the auxiliary storage device 2 may be destroyed or lost due to this stoppage of power supply.

Purpose of the Invention The present invention was made in order to eliminate the drawbacks of the conventional devices as described above, and it is possible to avoid data destruction or data loss due to the power panel switch being turned off while accessing an external storage device. The purpose is to provide an information processing system that can prevent data loss.

An information processing system according to the present invention includes an information processing device and an external storage device that stores data from the information processing device, and the information processing system includes an information processing device that stores data from the information processing device. The present invention is characterized in that means is provided for maintaining power supply to the system until the transfer of the data to the system is completed.

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

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. In FIG. It is composed of:

These information processing bags! , 1 and the auxiliary storage device 2 are commonly supplied with power from an AC power supply from a power supply panel 3,
The supply of power from the AC power supply is controlled by turning the switch 4 on and off.

Further, a relay 5 is provided in parallel with this switch 4, and among the control signals between the information processing device 1 and the auxiliary storage device 2, an access signal 101 indicating that the information processing device 1 and the auxiliary storage device 2 are currently being accessed is input to the relay 5. It works when That is, when the access signal 101 is output to start data transfer between the information processing device 1 and the auxiliary storage device T12, the relay 5 starts operating, and when the data transfer is completed, the access signal 101 is output. Relay 5 continues to operate until it is no longer output.

While this relay 5 is operating, power from the AC power source continues to be supplied to the power supply panel 3 regardless of whether the switch 4 is on or off, so power from the power supply panel 3 is transferred to the information processing device 1 and the auxiliary storage device 2. Supplied.

Therefore, the relay 5 continues to operate until the data transfer between the information processing device 1 and the auxiliary storage device 2 is completed.
During this time, even if the switch 4 is turned off, the power supply to the information processing device 1 and the auxiliary storage device 2 is maintained, and the operation of the information processing device 1 and the auxiliary storage device 2 is guaranteed.

Therefore, it is possible to prevent data from being destroyed or lost due to a power cut while the information processing device 1 is accessing the auxiliary storage device 2.

In this way, the relay 5 maintains the supply of power from the AC power source to the power supply panel 3 in response to the input of the access signal indicating that the information processing device 1 and the auxiliary storage device 2 are currently being accessed. By maintaining the supply of power from the power supply panel 3 to the information processing bag 21 and the auxiliary storage device 2, the information processing device 1 can access the auxiliary storage device 2 regardless of whether the switch 4 is on or off. Information processing device 1
Power can be stably supplied to the auxiliary storage device 2 and the auxiliary storage device 2. Therefore, from the information processing device 1 to the auxiliary storage device! Even if the switch 4 is turned off during access to the data storage device 2, data destruction or data loss due to the switch 4 being turned off can be prevented.

As explained above, according to the present invention, by providing means for maintaining power supply to the system until the transfer of data from the information processing device to the external storage device is completed, This has the effect of preventing data from being destroyed or lost due to the switch of the power panel being turned off while the external storage device is being accessed.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention, and FIG. 2 is a block diagram showing the configuration of a conventional example. Explanation of symbols of main parts 1...Information processing device 2...Auxiliary storage device 3...Power panel 5...Relay

Claims (1)

[Claims] An information processing system including an information processing device and an external storage device that stores data from the information processing device,
An information processing system comprising means for maintaining power supply to the system until the transfer of the data from the information processing device to the external storage device is completed.