JPH0786793B2 - Computer system automatic power-off device - Google Patents

Description

DETAILED DESCRIPTION [Overview] Main unit and input / output device (I / O) in a computer system
A device that automatically turns off the power when it detects an error in the device) has a simple configuration that can determine whether the power of the entire system needs to be turned off when a failure occurs, depending on the type of I / O device. It is possible to improve efficiency, and especially for the purpose of automatically turning off the power of the entire system during unmanned operation to improve safety. It is not necessary to turn off the power of the entire system.In the case of an alarm, only the alarm is displayed.It is an alarm that needs to turn off the power of the entire system when a failure occurs, and the power of the entire system is forcibly forced only during unattended operation. The main body device is provided with a processor that issues an instruction to disconnect.

[Industrial application field]

The present invention relates to an apparatus that automatically detects the abnormality of a main unit and an I / O apparatus in a computer system and automatically turns off the power.

Computer systems are used in various fields and their importance is increasing in recent years. Thus, in computer systems used in various fields, unmanned operation is required to reduce costs by reducing labor costs, but in the case of unmanned operation, errors such as power failure occur in the computer. When this happens, it is necessary to turn off the computer system power to prevent the occurrence of fire.

[Conventional technology]

FIG. 4 shows a block diagram of an example of a conventional device. In the figure,
Reference numeral 1 is a main unit that forms the center of the computer system, 2 ₁ , 2 ₂ , ... Is an I / O device such as a printer or fan, and 3 is an automatic power control device (AP) that gives a power-off instruction to the entire system.
CU: Automatic power control unit). The main unit 1 turns on / off the power of the main unit 1 and performs power supply unit control devices (UPC) 4 ₁ and 4 ₂ for performing alarm processing, and turning on / off the power of the I / O devices 2 ₁ and 2 _2. System power supply control unit (SP
C) 5, central processing unit (CPU) power supply unit 6 ₁ , 6 ₂ , memory storage unit (MSU) power supply unit 6 ₃ ,
6 ₄ and are configured by the service processor (SVP) 7 for displaying such as an alarm.

In the computer system having the above configuration, for example, PSU6 ₁
If in the failure, is detected PSU6 ₁ fault occurs in UPC4 _1, thereby, an alarm display is performed by SVP7 taken out alarm display instruction signal from SPC5. On the other hand, the alarm signal is supplied from SPC5 to APC U3, which causes APC U3
A power-off instruction signal is output from the power supply to SPC5, and SP
While the UPC4 ₁ , 4 ₂ are controlled by the instruction from C5 to turn off the power of the main unit 1, the I / O device 2 is instructed by the instruction from the SPC5.
₁ and 2 ₂ are turned off.

Similarly, for example, when a failure in the I / O device 2 ₁ occurs, an alarm signal from SPC5 is supplied to APCU3, power-off instruction signal from PPCU3 is supplied to SPC5, I / O device according to an instruction from SPC5 While the power of 2 ₁ and 2 ₂ is turned off, the UPCs 4 ₁ and 4 ₂ are controlled by the instruction from the SPC ₅ and the power of the main body device ₁ is turned off. As described above, the conventional device is configured to turn off the power of the entire system by a power-off instruction from the externally provided APC U3 even if any part of the system fails.

As a conventional device having such a structure, for example, Japanese Patent Laid-Open No. 54-41
An automatic power-off system as described in Japanese Patent No. 019 is known.

[Problems to be Solved by the Invention]

In particular, CPU power supply units 6 ₁ and 6 ₂ and MSU power supply unit 6
_3, 6 ₄ since if a failure occurs is considered the generation of a fire or the like, must be urgently power down the whole system. However, if an I / O device such as a printer or fan fails, for example, the printer cannot print out, and the fan can switch to a substitute fan. There is no need to power down the entire system to stop all system functions.

However, the conventional device does not need to turn off the power to the entire system at all, even when a failure occurs (when a failure occurs in the I / O device).
Since the power of the entire system is cut off by the operation of U3, it takes a long time to restore the entire system, and there is a problem that work efficiency decreases. In addition to the main unit 1, an APCU
Since 3 must be installed, there is a problem that the cost becomes high and the size becomes large, so that a lot of space is required.

The present invention, with a simple configuration, can judge whether or not it is necessary to power off the entire system when a failure occurs, depending on the type of I / O device. An object is to provide an automatic power-off device for a computer system that can be disconnected and enhances safety.

[Means for Solving the Problems]

FIG. 1 shows the principle of the present invention. In the figure, reference numeral 2 denotes an I / O device, which includes a device that needs to be powered off of the entire system when a failure occurs, and a device that does not (eg, a printer or a fan). Reference numeral 13 denotes a main body device, which includes a processor 10 and a control device 14. Controller 14 is the main unit
Power unit control unit (UPC) that turns on / off power of 13 and alarm processing, and turns on / off power of I / O device 2, while accepting alarms from I / O device 2 and power unit A system power control unit (SPC) that informs the processor 10 of the Further, the processor 10 determines whether or not an alarm from the control device 14 needs to turn off the power of the entire system, and if so, determines whether or not unmanned operation.

The present invention is an alarm that requires the alarm signal from the controller 14 not to turn off the power of the entire system when a failure occurs, but only displays the alarm when an alarm occurs, and it is necessary to turn off the power of the entire system when a failure occurs. In addition, the main body device 13 is provided with a processor 10 that issues an instruction to forcibly turn off the power of the entire system only during unmanned operation.

[Action]

In the device of the present invention, the processor 10 recognizes all the alarms from the power supply unit of the main body device 13 and the I / O device 2, and when a failure occurs, it is judged whether or not the power of the entire system needs to be cut off. , When not needed, only alarm is displayed, and when necessary and unattended operation, power off the entire system. That is, according to the present invention, it is possible to finely control whether or not to turn off the power of the entire system according to an alarm. Therefore, when it is not necessary to turn off the power of the entire system due to a failure of a fan or the like, all the functions of the system are not stopped unlike the conventional example, so that it does not take a long time to restore and the work efficiency is reduced. There is no such thing.
Further, since it is not necessary to specially provide the APCU as in the conventional example, the cost is low and the size can be reduced.

〔Example〕

FIG. 2 shows a block diagram of an embodiment of the device of the present invention. In FIG. 2, the same components as those in FIG. 4 are designated by the same reference numerals and the description thereof will be omitted. In the figure, 10 is a service processor (SVP), which is an alarm from a device that basically needs to power off the entire system when a failure occurs or an alarm from a device that does not need to power off the entire system. In addition to the above, the data set in the disk 11 at the time of unmanned operation is checked, and based on these, only an alarm display is displayed, while an instruction signal for turning off the power of the entire system is output. The SVP 10 operates according to the flowchart shown in FIG.

In FIG. 2, reference numeral 12 denotes a system power supply control unit (SPC), which turns on / off the power of the I / O devices 2 ₁ and 2 ₂ while the I / O devices are turned on and off.
It receives alarms from 2 ₁ and 2 ₂ and power supply units 6 _{1 to} 6 ₄ and informs SVP10, and powers off the entire system by a power-off instruction signal from SVP10. UP
_{C4 1, 4 2, PSU6 1} ~6 4, SVP10, main apparatus 13 is constituted by a disk 11, SPC12.

Next, the operation of the device of the present invention will be described with reference to the flowchart shown in FIG. For example, a fan (I / O device 2 ₁ ) that does not require powering down the entire system in the event of a failure
When a failure occurs in, SPC12 informs this to SVP10 accept alarms from I / O device 2 _1. In SVP10, it is judged whether or not the alarm is from a device that needs to turn off the power of the entire system (step 20 in FIG. 3). In this case, it is NO, so only the alarm is displayed (step 3 in FIG. 3).
21) Do not power off the entire system.

Then, for example, if the PSU6 ₁ needs to be powered down for the entire system in the event of a failure, the UPC4 ₁ will
_It accepts the alarm from ₁ and informs SPC12 of this, and
From SPC12 to SVP10 inform the alarm occurrence of PSU6 _1. SVP
At 10, it is judged whether or not there is an alarm from a device that needs to turn off the power supply of the entire system (step 20 in FIG. 3). Since it is YES in this case, the process proceeds to the next step 22, and whether or not unmanned operation is being performed. Make a decision. If no unattended operation, no unattended operation data is set in the disk 11, so NO is determined in step 22 and only an alarm is displayed (step 21 in FIG. 3). SVP10 alarm display allows PSU6 ₁
In it it is informed that a failure has occurred, processing such as human power down PSU6 ₁ by operating the UPC4 ₁ is taken. In this case, according to a person's judgment, if the failure is not so large, the power of the device in question is turned off, and if the failure is relatively large, the power of the entire system is turned off.

On the other hand, if the alarm is for turning off the power of the entire system (YES in Step 20 of FIG. 3) and the driver is operating unattended, YES is determined in Step 22 because the unattended operation data is set in the disk 11. In this case, the power-off instruction signal for forcibly turning off the power of the entire system is output regardless of the scale of the failure (step 23 in FIG. 3). This allows SP
The power from the PSU 6 _{1 to} 6 ₄ and the I / O device 2 ₁ ,
2 ₂ powers off together.

Even in the case of an I / O device that requires powering off of the entire system when a failure occurs, it goes through step 20 of FIG. 3 and step 22 of FIG. 3 to reach step 23. Of course, the operation is performed.

〔The invention's effect〕

As described above, according to the present invention, it is possible to perform fine control as to whether or not to turn off the power of the entire system in response to an alarm, and it is necessary to turn off the power of the entire system such as a failure of a fan or the like. If not, all the functions of the system are not stopped as in the conventional example, so it does not take a long time to restore and work efficiency does not decrease.
Further, since it is not necessary to specially provide the APCU as in the conventional example, the cost is low and the size can be reduced.

[Brief description of drawings]

1 is a principle diagram of the present invention, FIG. 2 is a block diagram of an embodiment of the device of the present invention, FIG. 3 is an operation flowchart of the device of the present invention, and FIG. 4 is a block diagram of an example of a conventional device. In the figure, 2, 2 ₁ , 2 ₂ are input / output devices (I / O devices), 4 ₁ , 4 ₂ are power supply unit control units (UPC), 6 _{1 to} 6 ₄ are power supply units (PSU), 10 is service Processor (SVP), 11 is a disk in which unattended operation data is set, 12 is a system power control unit (SPC), 13 is a main unit, and 14 is a control unit.

Claims (1)

[Claims] 1. The power supply unit (6 ₁ , 6 ₂ ...) In the main body device (13) is turned on / off and alarm processing is performed, while the input / output device (2 ₁ , 2 ₂ ...) Is turned on / off and alarmed. In an automatic power-off device for a computer system equipped with a control device (14) for processing, an alarm signal from the above-mentioned control device (14) does not mean that the power of the entire system may be cut off when an error occurs. The processor (10) that issues an alarm to shut off the power of the entire system when a failure occurs, and issues an instruction to forcibly turn off the power of the entire system only during unattended operation. An automatic power-off device for a computer system, which is provided in 13).