JP3434354B2 - Data processing 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 improvement in a data processing device having multiple power supply devices. 2. Description of the Related Art In recent years, in order to improve the reliability and operating rate of a data processing device, multiplexing of power supplies (mainly duplication) has been considered.

However, simply duplicating the power supply is
There are problems such as increased cost, mounting space, and power supply capacity. Therefore, there is a demand for a data processing device having a simple multiplexing structure.

[0003]

2. Description of the Related Art FIG. 5 is a block diagram of a conventional example. The apparatus main body 5 shown in FIG. 5 has a duplicated file, and the central processing unit CPU 6 has the disk device DK8a via the channel device 7a and the disk device DK via the channel device 7b.
For 8b, the same data is accessed in parallel and the files are duplicated.

When a failure occurs in one of the processing systems (for example, channel device 7a-disk device DK8a), that processing system is disconnected and the other processing system (channel device).
7b-Disk device DK8b) is used to prevent system down. In some cases, the disk devices 8a and 8b of each processing system are duplicated to further improve reliability.

In such a duplexer, since the reliability and operability of the power supply device determine the reliability of the device, it is necessary to duplicate the power supply device. The power supply devices 1a and 1b shown in FIG. 5 each have a capacity capable of supplying power to the device body 5 independently, and are connected to the power supply output line of the same voltage to operate.

Therefore, when an abnormality occurs in one of the power supply devices (excluding an output short-circuit abnormality), the other power supply device supplies power to the device main body 5. The power supply 1a,
1b has the same configuration and the same capacity, and each has an alternating current (A
AC-DC converter that converts C) into a single direct current (DC)
DC-DC which is supplied with direct current (DC) from 2a, 2b and AC-DC converters 2a, 2b, respectively, to generate various DCs
It is composed of the converters 3a and 3b, and can be switched to the battery to supply messages when there is a momentary interruption.

[0007]

In the case of multiplexing power supply devices, a method of operating a plurality of power supply devices in parallel, or switching to a standby power supply device in the event of an abnormality is adopted. It is necessary for the power supply unit to have a capacity to supply power to the main body of the power supply unit alone, which causes a problem that the device becomes large and the cost increases.

In view of the above problems, it is an object of the present invention to provide a data processing device having a simple multiplexing structure of power supply devices.

[0009]

In order to solve the above problems, the data processing device of the present invention is configured as follows. (1) First Invention (See FIG. 1 Principle Diagram of the Present Invention) A common unit 42 that performs a process, and a plurality of processing systems 41a that are accessible from the common unit 42 and can be separated from the common unit , 41b and a plurality of first power supply devices 31a, 31b for supplying power to the processing systems 41a, 41b, respectively.
And a multiplexed second power supply device 32 for supplying power to the common unit 42. (2) Second Invention In the first invention, when an abnormality is detected in any one of the first power supply devices 31a and 31b, a disconnection process of a processing system corresponding to the power supply device is performed. It is configured to provide a separating means for performing. (3) Third Invention In the above first and second inventions, the first power supply device 31a, 3
1b generates a predetermined DC power supply by an AC-DC conversion unit that converts AC into DC, an uninterruptible power supply, and a DC power supply supplied from the AC-DC conversion unit or the uninterruptible power supply. The second power supply device 32 is composed of a DC-DC converter, and the second power supply device 32 is composed of a plurality of multiplexed DC-DC converters, and the DC input of each of the plurality of DC-DC converters is the first DC-DC converter. The power supply device is configured to be supplied from the AC-DC converter of the predetermined power supply device or the uninterruptible power supply device. (4) Fourth Invention In the third invention, the first power supply device 31a, 31b is
Each is configured to have a separate AC input terminal. (5) Fifth Invention The disconnecting means in the third invention is the first power supply device 31a,
When an abnormality notification is received from any of the AC-DC converters of 31b, the output of the AC-DC converter is switched to the output of the uninterruptible power supply, and the abnormal state of the power supply is changed after a predetermined time. It is configured to search and, if the abnormality continues, perform the disconnection processing of the corresponding processing system. (6) Sixth Invention In the fifth invention, the DC power supply from the uninterruptible power supply unit of the power supply unit in which the abnormality has occurred is stopped by the termination of the disconnection processing. (7) Seventh invention In the sixth invention, when the separating means separates all other processing systems at the time of the separating processing,
DC power is supplied to the second power supply device 32 from the uninterruptible power supply devices of the first power supply devices 31a and 31b, and the common unit 42 is configured to perform the system down process.

[0010]

[Action]

(1) First Invention The data processing device of the present invention comprises a plurality of first power supply devices 31a,
31b and a multiplexed second power supply device 32,
The power supply devices 31a and 31b of the above supply power to the processing systems 41a and 41b, respectively, and the second power supply device 32 supplies power to the common unit 42.

With such a structure in which power is supplied individually, the processing systems 41a and 41b can be separated from the common unit 42, so that even if an abnormality occurs in any of the first power supply units 31a and 31b, Since the corresponding processing system can be separated from the common unit 42 due to no response or the like, the data processing device can continue processing. (2) Second invention In the first invention, when an abnormality is detected in any one of the first power supply units 31a and 31b, the disconnecting means corresponds to the power supply unit in which the abnormality has occurred. Detach the processing system.

By this forcible disconnection processing, when the processing system has a redundant configuration, etc., appropriate processing such as data saving processing and restoration processing can be performed, and normal operation can be continued. If the processing system has a configuration other than the multiplexing configuration, the degenerate operation is performed. (3) Third Invention In the first power supply device 31a, 31b, the AC-DC converter converts the alternating current into the direct current, and the DC-DC converter generates the predetermined direct-current power. At this time, if an abnormality is detected in the AC-DC converter, the uninterruptible power supply unit supplies DC-D.
DC power is supplied to the C converter.

On the other hand, the second power supply device 32 includes a plurality of DC-
The DC conversion units are connected in parallel, for example, and the AC-DC conversion unit or the uninterruptible power supply unit of the predetermined power supply unit of the first power supply units 31a and 31b is connected to the plurality of DC-DC conversion units. DC power is supplied from.

With such a configuration, the AC-DC converter of the second power supply device 32 and the uninterruptible power supply device can be omitted. Moreover, since the AC-DC converter and the uninterruptible power supply have a multiple structure, the reliability is not lowered. (4) Fourth Invention In the third invention, the first power supply device 31a, 31b is
Each is configured to have a separate AC input terminal.

This makes it possible to achieve the object of the multiplexing structure of the present invention including the input terminals. (5) Fifth Invention The disconnecting means in the third invention is the first power supply device 31a,
When an abnormality notification is received from any of the AC-DC converters in 31b, the output of the AC-DC converter that has notified the abnormality is switched to the output of the uninterruptible power supply, and after a predetermined time has elapsed, the abnormality of the power supply is detected. The status is searched, and if the abnormality continues, the corresponding processing system is disconnected.

As a result, disconnection due to a momentary interruption can be prevented, and the capacity of the battery of the uninterruptible power supply can be reduced. (6) Sixth Invention In the fifth invention, the DC power supply from the uninterruptible power supply of the power supply in which the abnormality has occurred is stopped by the termination of the disconnection processing.

This prevents wasteful consumption of the battery of the uninterruptible power supply. (7) Seventh invention In the sixth invention, when the separating means separates all other processing systems at the time of the separating processing,
DC power is supplied to the second power supply device 32 from the uninterruptible power supply devices of the first power supply devices 31a and 31b, and the common unit 42 is caused to perform the system down process.

By this processing, the sixth aspect of the invention can be carried out when the system is brought down. As described above, in particular, for a multiplexed processing system, power is supplied from a power supply device that is composed of a single system, and when an abnormality occurs in the power supply device, the processing system is disconnected. Since the processing is performed, it is possible to configure an efficient power supply device having a multiplex configuration that does not reduce the operating rate and the reliability, depending on the device configuration.

[0019]

FIG. 2 is a block diagram of an embodiment, FIG. 3 is an operation flowchart, and FIG. 4 is an operation time chart of FIG.

In this embodiment, an example of a power supply configuration corresponding to the duplexer shown in FIG. 5 is shown. In FIG. 2, 10a is 1
System power supply, AC-DC converter 12a, uninterruptible power supply
14a, DC-DC converter 13a, etc.
Supply DC power to 16a.

Here, the AC (alternating current, commercial power source) input from the AC input terminal 25a is converted into DC (direct current) of a predetermined voltage by the AC-DC converter 12a, and the DC-DC converter 13
By a, a plurality of types of DC voltages required for the 1-system device 16a are generated.

The AC-DC converter 12a sends an AC disconnection interrupt to the central processing unit CP when an abnormality such as AC input disconnection occurs.
The signal is output to U23, the AC disconnection state signal A is turned on, and turned off when the power is restored.

The uninterruptible power supply 14a has a battery BATT and a charging device C, and when the switch S1 is on (when the AC-DC converter is abnormal), DC is converted to DC-DC instead of the AC-DC converter 12a. When the power is supplied (discharged) to the section 13a and the switch S1 is off (when the AC-DC conversion section is normal), AC
It is charged by the DC output from the -DC converter 12a.

Reference numeral 10b denotes a 2-system power supply device, which is a D-system device 16a.
Supply C power. This 2-system power supply device 10b has the same configuration and the same performance as the 1-system power supply device, and the corresponding components are represented by using the subscript b. It should be noted that the 2 system power supply 10b has one
AC is supplied from an AC input terminal 25b different from the system power supply 10a, and when an abnormality such as AC disconnection occurs, an AC disconnection interrupt is output to the CPU 23 and the abnormal condition continues, as in the case of the system 1 power supply 10a. During this period, the AC disconnection state signal B is turned on.

A common power supply unit 15 is connected to the two sets of DC-DC converters 15a and 15b having the same performance so as to be operated in parallel, and supplies the common unit 17 with DC power. The DC input of the DC-DC converter 15a is the 1-system power supply device 10
The DC input of the DC-DC converter 15b is 2
Power is supplied from the system power supply unit 10b.

Reference numeral 16a denotes a 1-system device of the device body, which is an IO
It is composed of a control unit 18a and a disk device DK 19a. Since the channel device 20a is directly connected to the central processing unit CPU23, it is included in the common section 17 as a power supply system.

Reference numeral 16b denotes a 2-system device having the same configuration as that of the 1-system device 16a, and the CPU 23 performs the same processing as that of the 1-system device 16a. That is, the 1-system device 16a and the 2-system device 16b form a duplex configuration. The same components as those of the 1-system device 16a are indicated by adding a subscript b. The channel device 20b is included in the common unit 17 as a power supply system.

Reference numeral 21 denotes a timer, which counts the elapsed time from the occurrence of the AC disconnection abnormality and notifies the power supply control section 21 of the elapse of a predetermined time (instantaneous disconnection monitoring time). As a result, it is monitored whether the AC disconnection abnormality continues even after the predetermined time.

Reference numeral 22 is a power supply control unit, which is C when an AC interruption interrupt occurs.
It is started by the PU 23, and it is determined whether the AC disconnection has occurred in the 1-system device 16a or the 2-system device 16b, and the power supply control described later is performed. Reference numeral 23 denotes a CPU, which performs predetermined processing as a dual system such as accessing the same data to the first system device 16a and the second system device 16b. Although the CPU 23 is described as one in the drawing, it is configured by, for example, three CPUs, and reliability is improved by performing majority control and the like.

The channel device 20a and the channel device 20
b are connected to the CPU 23 by a bus 50a and a bus 50b, respectively, and are separated from each other.
In the data processing device having the above-mentioned duplex configuration, the power supply control unit 22 performs the following processing when the power supply is abnormal. See FIGS. 3 and 4. (1) An AC disconnection interrupt (1 system power supply 10a) occurs. At time t1 (2) in FIG. 4, this interrupt causes the CPU 23 to activate the power supply control unit 22, and the power supply control unit 22 searches for the AC disconnection state signals A and B. (3) In this case, since the AC disconnection state signal A is on,
The uninterruptible power supply 14a instructs the discharge, and the uninterruptible power supply 14a closes the switch Sa. As a result, the battery BATT of the uninterruptible power supply 14a becomes DC-D through Sa.
DC is supplied to the C converter 13a. The battery
BATT is charged by the charging device C when the switch Sa is open. (4) At the same time, the timer 21 is started. At the time t2, when the timer 21 notifies the elapse of a predetermined time (T), the power supply control unit 22 monitors ON / OFF of the AC disconnection state signal A, and if it is OFF (release of instantaneous interruption), (5) Power recovery Output instructions. As a result, the switch Sa is opened, DC is supplied from the AC-DC converter 12a, and charging of the battery BATT is started. Then, the operation by both systems is continued. (6) If it is not canceled, the CPU 23 is notified. (7) As a result, the CPU 23 disconnects the power failure system device (here, the 1 system device 16a). When this disconnection process ends, an instruction to stop the discharge of the uninterruptible power supply 14a is issued. As a result, the power supply from the 1-system power supply device 10a to the 1-system device 16a is stopped, and the data processing device of this system is a single system (here, 2 system).
It is operated by the system device 16b). (8) When a power recovery notice is sent from the 1-system power supply unit 10a during this single-system operation, the power supply control unit 22 notifies the CPU 23, and the CPU
23 is the disk device DK19 of the 1-system device 16a that has been disconnected
Rebuild the dual system, such as copying the data in the active disk unit DK19b to a, and restart the operation by both systems. (9) When disconnecting the power failure system, if the other system has already been disconnected, that is, if a power failure occurs in both systems (AC disconnection error occurs at time t3 in FIG. At a later time t4, which corresponds to an AC disconnection abnormality in both systems), system stop processing is performed. At this time, in the case of FIG. 4, since the uninterruptible power supply 14a of the system that has been disconnected has been stopped from discharging, the switch Sa is closed to discharge and the common unit power supply 15
Both of the DC-DC converters 15a and 15b are operated to restore the duplex configuration, and the CPU 23 is caused to perform the system down process.

As described above, since the common unit 17 is the dual power supply unit and each system of the dual system is driven by the single power supply unit, the DC-DC converting unit 13a of the first system power supply unit 10a,
The DC-DC converters 13b of the 2-system power supply device 10b do not need to have a combined capacity of the 1-system device 16a and the 2-system device 16b, respectively, and the shapes of the DC-DC converters 16a and 16b should be small. And cost can be reduced.

If it is not an instantaneous interruption, the corresponding processing system is disconnected, and after disconnection, the discharge of the uninterruptible power supply unit of that system is stopped, so that the capacity of the battery can be reduced. In addition, when both systems are abnormal, the uninterruptible power supply units of both systems are operated to duplicate the common unit power supply unit to perform system down processing.
With the processing system-1 system power supply configuration, backup can be normally performed when the system is down.

Although the above embodiment has been described with respect to the duplexer, it goes without saying that it can be applied to a multiplexer.
In this case, each processing system is supplied by one power supply unit in the same manner as in the duplexer, but the shared power supply unit is usually sufficient in the dual configuration. In this case, the DC input of the common power supply unit is received from the power supply unit corresponding to an arbitrary processing system.

The present configuration is not limited to the multiplexing device, but can be applied to a device capable of degenerate operation.

[0035]

As described above, according to the present invention, the common part is driven by the multiplex power supply device, and each separable processing system is driven by the corresponding one power supply device. When the device goes down, the processing system is disconnected if there is no instantaneous interruption, so the capacity of the power supply device can be reduced while maintaining the operability and reliability of the conventional power supply device multiplexing configuration. There is an effect.

When disconnection is performed, the discharge of the uninterruptible power supply of the system is stopped so that the capacity of the battery can be made as small as possible, and when the entire system is abnormal, the uninterruptible power supply stopped. Is operated to restore the multiplexing configuration of the common power supply unit, so that there is an effect that the processing at the time of system down in this power supply unit configuration can be reliably performed.

[Brief description of drawings]

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

FIG. 2 is a configuration diagram of an embodiment.

[Fig. 3] Operation flowchart diagram

FIG. 4 is an operation time chart diagram of FIG.

FIG. 5 is a block diagram of a conventional example

[Explanation of symbols]

1a, 1b Power supply 2a, 2b AC
-DC converter 3a, 3b DC-DC converter 5 Device body 6 Central processing unit CPU 7a, 7b Channel device 8a, 8b IO device 10a 1-system power supply 10b 2-system power supply 12a, 12b AC-DC converter 13a, 13b D
C-DC converter 14a, 14b Uninterruptible power supply 15a, 15b D
C-DC converter 16a 1-system device 16b 2-system device 17 Common parts 18a, 18b I
O control unit 19a, 19b Disk unit 20a, 20b Channel unit 21 Timer 22 Power supply control unit 23 Central processing unit CPU 25a, 25b A
C input terminal 31a First power supply device 31b First power supply device 32 Second power supply device 41a Processing system 41b Processing system 42 Common parts 50a, 50b Bus

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Kiyoshi Sudo, 1015 Kamiodanaka, Nakahara-ku, Kawasaki-shi, Kanagawa, Fujitsu Limited (72) Inventor, Hiroshi Wachi, 1015, Kamedota, Nakahara-ku, Kawasaki, Kanagawa, Japan, Fujitsu Limited (72) Inventor Susumu Shin Takahashi 1015 Kamiodanaka, Nakahara-ku, Kawasaki City, Kanagawa Prefecture, Fujitsu Limited (56) References JP 62-89440 (JP, A) JP 59-36765 (JP, B1) (58) ) Fields surveyed (Int.Cl. ⁷ , DB name) H02J 9/00-9/08

Claims (6)

(57) [Claims] Supply and 1. A process for performing common portion, a plurality of processing system capable of each common section or <br/> et disconnection while being configured to be accessible from the common unit, the power respectively to the each processing system A plurality of first power supply devices, and a second power supply device that is multiplexed to supply power to the common unit , wherein the first power supply device converts the alternating current into the direct current. Convert to
An AC-DC converter, an uninterruptible power supply, and the AC-
DC power supplied from the DC converter or uninterruptible power supply
A DC-DC converter that generates a predetermined DC power source depending on the source
The second power supply device is composed of a plurality of multiplexed DC-DC converters.
Each of the plurality of DC-DC conversion units.
This DC input is the power supply of the first power supply.
Supplied from the AC-DC converter or uninterruptible power supply
A data processing device characterized by being configured as described below. Wherein when an abnormality is detected in either the power supply of the first power supply, and characterized by providing a processing system disconnecting means for processing system disconnection processing corresponding to the power supply The data processing device according to claim 1. 3. The first power supply device is a separate AC
Claim 1 or Claim which has an input terminal
Item 2. The data processing device according to item 2 . 4. The disconnecting means is one of the first power supply devices.
When an abnormality notification is received from one of the AC-DC converters,
Switch the output of the AC-DC converter to the output of the UPS.
And change the power supply device after a predetermined time
Status, and if the error continues, turn off the corresponding processing system.
The data processing device according to claim 2 , wherein the data processing device performs separation processing . 5. An abnormal voltage is generated when the disconnection process is completed.
The data processing device according to claim 4, wherein the DC power supply from the uninterruptible power supply device of the power supply device is stopped . 6. The detaching means is another at the time of the detaching processing.
If all of the processing system is suggested separating the first conductive
DC power supply from the UPS to the second power supply
Is supplied to the common unit to perform system down processing.
6. The data processing apparatus according to claim 5 , wherein the data processing apparatus is configured as described above.