JPH05224784A - Computer device - Google Patents

Abstract

PURPOSE:To simplify entire configuration by relating the backup operation stop of a UPS (uninterruptive power supply) on the side of an auxiliary storage device to a shut-down processing on the side of a computer and transmitting a stop instruction signal through a general purpose bus. CONSTITUTION:When an AC power source 30 is turned to a power failure, respective UPS 31 and 32 are switched to the backup by batteries 33 and 34. A timer 11 in a computer 1 starts counting power failure time and in the case of time up, a shutdown processing 12 in the computer 1 disconnects an application program worked all the while until then, then, shuts down the system. When data are completely saved to the side of an auxiliary storage device 2 in the case of the shut-down processing, a UPS operation stop instructing means 13 instructs the stop of the backup operation through a bus BS to the UPS 32 in the auxiliary storage device 2. After all the shut-down processings are completed, the computer 1 instructs the stop of the backup operation to the UPS 31.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a computer device provided with an auxiliary storage device, and more specifically, for backing up the power supply to the computer side and the auxiliary storage device side in case of power failure. The present invention relates to a computer device configured to individually have an uninterruptible power supply (UPS).

[0002]

2. Description of the Related Art FIGS. 4 and 5 are conceptual views of the configuration of a conventional computer device of this type. In the example of FIG. 4, a UPS 3 common to the computer 1 and the auxiliary storage device 2 is provided,
When a power failure occurs, the common UPS 3 supplies power to each. In addition,
BS is a bus connecting the computer 1 and the auxiliary storage device 2.

In the example of FIG. 5, separate UPSs 31 and 32 are provided in the computer 1 and the auxiliary storage device 2, respectively, and in the event of a power failure, power is supplied from each of these UPSs 31 and 32. It was done.

[0004]

The apparatus shown in FIG. 4 has an instruction to switch to a backup operation when a power failure occurs,
In the case of a long power outage, the backup operation termination instruction, etc. need only be issued to one UPS.
However, there is a problem that the capacity of the UPS 3 must be increased.

On the other hand, the device of FIG. 5 has a feature that the capacity of each UPS can be reduced. However, the computer 1 needs to switch the backup operation to each UPS and give an instruction to stop the backup operation.
There is a problem that a signal line for sending to the UPS 31 on the auxiliary storage device 2 side must be newly provided.

The present invention has been made in view of these problems. Basically, the backup of the power supply has the structure shown in FIG.
(EN) Provided is a computer device having a simple configuration and high reliability, in which a signal for controlling the backup operation of S32 can be sent using a general-purpose bus BS connecting the computer 1 and the auxiliary storage device 2. With the goal.

[0007]

SUMMARY OF THE INVENTION The present invention for achieving the above object provides a computer and an auxiliary storage device, which are connected to each other via a bus, with individual uninterruptible power supplies (UPS). In case of power outage, each of these U
In a computer device configured so that electric power is supplied to each part from a battery in the PS, a timer having a predetermined time-up time for measuring the power failure time upon receiving a power failure occurrence notification on the computer side,
In response to the time-up of this timer, the application program which has been in the operating state until then is disconnected, and the shutdown processing means for performing the shutdown processing of the system and the UPS of the auxiliary storage device before the shutdown processing is completed. And a UPS operation stop instruction means for giving an instruction to stop the backup operation via the bus and for instructing the UPS of itself after the shutdown processing to stop the backup operation. To stop the backup operation of its own UPS by receiving the UPS operation stop instruction sent from the computer side via the bus.
A computer device provided with an operation stopping means.

[0008]

When a power failure occurs, the computer and its auxiliary storage device are continuously supplied with power from the corresponding UPS. The timer uses the power charged in the battery built into each UPS,
The time for which the backup operation can be sufficiently performed (the time when the backup operation is terminated and sufficient power remains) is set as the time-up time.

Upon receiving the time-out of the timer, the computer disconnects the application program that has been in the operating state until then, and performs the shutdown processing of the system. Before the shutdown processing is completed, the UPS of the auxiliary storage device is instructed to stop the backup operation via the bus. Upon receiving the UPS operation stop instruction sent from the computer side, the auxiliary storage device stops the backup operation of its own UPS.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a configuration block diagram showing an embodiment of the present invention. In the figure, 1 is a computer, and 2 is an auxiliary storage device connected to the computer 1 via a general-purpose control bus BS. Various application programs are installed in the computer 1, and operations such as controlling and operating a plant are performed. 31, 3
2 is UPS, UPS 31 is computer 1
And the UPS 32 are for the auxiliary storage device 2, and each UPS is provided with batteries 33 and 34 for backing up when the main AC power supply 30 fails.

In the computer 1, reference numeral 11 denotes a timer for receiving a power failure occurrence notification output from the UPS 31 of the computer 1 and measuring the power failure time. Here, a predetermined time-up time (for example, a time-up time corresponding to the capacity of the battery 33 is set). 20 sec) is set. Reference numeral 12 denotes a shutdown processing means for disconnecting the application program which has been in the operating state until the timer 11 has timed out and for performing the shutdown processing of the system.

A reference numeral 13 outputs an instruction to stop the backup operation to the UPS 32 of the auxiliary storage device 2 via the bus BS before the completion of all the shutdown processing operations performed by the shutdown processing means 12. , UPS of its own after all shutdown processing is completed
U which instructs 31 to stop the backup operation
It is a PS operation stop instruction means.

On the auxiliary storage device 2 side, 20 is a controller 21, 22, 23, which is connected to the computer 1 side.
Reference numeral 2i denotes a plurality of storage devices controlled by the controller 20, for example, a magnetic disk device is used, and various data sent from the computer 1 side are stored in these storage devices under the control of the controller 20. Is configured.

Reference numeral 25 interprets the control signal sent from the computer 1 side via the bus BS, and if it is a UPS operation stop instruction, instructs the UPS 32 of its own to stop its backup operation. It is a stop instruction receiving means. The stop instruction receiving means 25 is realized by a program in the controller 20. The operation of the device configured as described above will be described below.

FIG. 2 is a time chart showing an example of the operation, and FIG. 3 is a flow chart. As shown in FIG. 2A, the computer 1 is performing a normal operation, that is, an operation according to the application program, when the power is normally supplied from the main power source 30. The auxiliary storage device 2 also stores data according to a control signal sent from the computer 1 side via the bus BS under the control of the controller 20,
Computer 1 that reads the already stored data
It is sending to the side.

Assuming that a power failure of the AC power source 30 occurs at time T1 in FIG. 2, each of the UPSs 31 and 32 has the battery 3 as shown in (b) and (f) from this point.
The backup operation is switched to 3, 34, power is continuously supplied to each part, and both the computer 1 and the auxiliary storage device 2 continue normal operations as before the occurrence of the power failure.

On the other hand, the timer 11 in the computer 1
Upon receiving the power failure notification from the UPS 31, starts the power failure time measurement as shown in (d). Here, in the case where the power failure occurs when the power is restored before the timer 11 times out, the timer 11 is reset, and the power returns from the AC power supply. When the power failure time continues for a long time and the timer 11 times out at time T2, the shutdown processing means 12 in the computer 1 performs an operation of disconnecting the application program that has been running until then, as shown in (c). Further, the system shutdown process is performed subsequently. As the shutdown process, for example, a process of saving to the auxiliary storage device 2 side so that the data that has been handled by the computer 1 until then does not volatilize, a process of returning various flags to a reset state, It includes a process of disconnecting the connected auxiliary storage device 2. When the data saving processing to the auxiliary storage device 2 side is completed, the UPS operation stop instruction means 13 first stops the backup operation of the UPS 32 of the auxiliary storage device 2 in a state where other shutdown processing is not completed. The instruction is given via the bus BS as shown in (e).

In the auxiliary storage device 2, the controller 2
The stop instruction receiving means 25 in 0 interprets various commands sent from the computer 1 side, and the
In the case of the operation stop instruction, the UPS 32 is instructed to stop the backup operation. As a result, the UPS 32 on the auxiliary storage device 2 side first stops the backup operation as shown in (f).

The computer 1 continues to perform the shutdown process as shown in (c), and when all the shirt down processes are completed, as shown in (e), the backup operation of the UPS 31 on the computer 1 side is stopped. To instruct. This enables UPS3 of computer 1
1 stops the backup operation as shown in (b),
The unnecessary consumption of the battery 33 is suppressed.

In the above embodiment, the timer 11 inputs the power failure notification signal from the UPS 31. However, power supply monitoring means for monitoring the AC power supply is provided, and the timer is activated by the power failure notification signal output from the power monitoring means. You may make it start.

[0021]

As described above in detail, according to the present invention, the stop of the backup operation of the UPS of the auxiliary storage device is associated with the shutdown process of the computer 1, and the stop instruction signal is sent to the general-purpose bus. It is designed to be sent via the internet, which simplifies the overall configuration. Also, each UP
It is possible to prevent wasteful consumption of the battery of S and to prevent the battery charging power from being used up without knowing it, so that a highly reliable computer device can be provided.

[Brief description of drawings]

FIG. 1 is a configuration block diagram showing an embodiment of the present invention.

FIG. 2 is a time chart showing an example of operation.

FIG. 3 is a flowchart showing an example of operation.

FIG. 4 is a conceptual diagram of a configuration of a conventional computer device.

FIG. 5 is a conceptual diagram of a configuration of a conventional computer device.

[Explanation of symbols]

 1 Computer 2 Auxiliary Storage Device 30 Main AC Power Supply 31, 32 Uninterruptible Power Supply (UPS) 33, 34 Battery 11 Timer 12 Shutdown Processing Means 13 UPS Operation Stop Instruction Means 20 Controllers 21, 22, 23, 2i Multiple Storage Devices 25 Stop instruction acceptance means

Claims (1)

[Claims] 1. An uninterruptible power supply (UPS) is provided for each of a computer and an auxiliary storage device connected to each other via a bus, and when a power failure occurs, power is supplied from a battery in each of these UPSs. In a computer device configured to be supplied to each part, a timer having a predetermined time-up time for measuring the power failure time upon receipt of a power failure occurrence notification on the computer side, and the timer In response to this, the application program which has been in the operating state until then is disconnected, and the shutdown processing means for performing the shutdown processing of the system and the backup operation of the UPS of the auxiliary storage device before the shutdown processing is terminated. The instruction is given via the bus and the shutdown process is performed. And a UPS operation stop instruction means for instructing its own UPS to stop its backup operation after completion of the processing, and the UPS operation stop instruction sent from the computer side via the bus to the auxiliary storage device side. In response to this, the computer device is provided with a UPS operation stopping means for stopping the backup operation of its own UPS.