JP2002136000A - Uninterruptible power supply system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To back up plural computers by using plural uninterruptible power supplies. SOLUTION: The uninterruptible power supply system is composed of plural uninterruptible power supplies 1 to supply power to plural components 4 (n in number) consisting of one or plural electronic devices, and a controller 2 to monitor and control the plural uninterruptible power supplies 1. Each of the uninterruptible power supplies 1 is provided (on m-to-1 basis) for a group of the plural components 4 with a redundancy (m), and supplies power, at least, to the corresponding components 4, sending its own state information to the controller 2. The controller 32 gathers the state information from each of the plural uninterruptible power supplies 1 and stops the operation of a specified uninterruptible power supply 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an uninterruptible power supply system, and more particularly to an uninterruptible power supply system in which a plurality of computers are backed up by a plurality of uninterruptible power supplies.

[0002]

2. Description of the Related Art Computers (or servers) are usually
It is backed up by an uninterruptible power supply (UPS).
That is, the computer is connected to the commercial power supply via the uninterruptible power supply, and receives power supply from the uninterruptible power supply when the commercial power supply fails. This prevents data on the computer from being lost due to a power failure of the commercial power supply.

As a computer backup system, two main systems are known. The first method is a (one-to-n) computer system in which one computer is backed up by a plurality (n) of uninterruptible power supplies. In this case, one program that monitors and controls a plurality of uninterruptible power supplies operates on the computer. In the second method, a plurality of (n) computers are connected to one computer.
It is a (n to 1) computer system that is backed up by two uninterruptible power supplies. In this case, the serial signal lines or the contact signal lines are multiplexed, and n computers monitor and control one uninterruptible power supply.

[0004]

The first method is a so-called redundant system, which can operate a computer continuously for a long time, but requires a plurality of uninterruptible power supplies in one computer. And backup efficiency is poor. In the second method, a plurality of computers are backed up by one uninterruptible power supply, so that the backup efficiency is high. However, if an abnormality occurs in the uninterruptible power supply itself, all the computers may go down.
Therefore, there is a demand for the development of an uninterruptible power supply system that has high backup efficiency and that shuts down only the computer corresponding to the uninterruptible power supply in which an abnormality has occurred (with improved fault tolerance or fault tolerance). ing.

[0005] The configuration of a computer system to which power is supplied is becoming more and more complicated. For example, computer clustering is performed from the viewpoint of distributed processing, etc., hard disk drive redundancy is performed from the viewpoint of data reliability improvement, etc., and from the viewpoint of processing performance improvement and system efficiency, etc. A server client method is adopted. Further, a computer system is actually configured by combining these technologies. Therefore, even in the development of the uninterruptible power supply system as described above, it is necessary to be able to cope with such a configuration in consideration of the configuration of a complicated computer system.

However, in practice, it has been practically impossible to combine and use the above-described first and second methods in accordance with the increasing complexity of computer systems. Also, 1
When the above-described first and second methods were independently applied to individual computer systems, unified control of both methods could not be performed. Furthermore, when trying to perform such unified control,
It was necessary to add a complicated control device only for that purpose, and it was difficult to introduce it in terms of cost. Further, in the conventional uninterruptible power supply system, it is practically impossible to cope with the expansion of the computer system.

[0007] It is an object of the present invention to provide an uninterruptible power supply system in which a plurality of computers are backed up by a plurality of uninterruptible power supplies.

Another object of the present invention is to provide an uninterruptible power supply system capable of coping with a complicated configuration of a computer system.

[0009]

The uninterruptible power supply system of the present invention comprises a plurality (n) of one or more electronic devices.
A plurality of uninterruptible power supplies that supply power to the components, and a control device that monitors and controls the plurality of uninterruptible power supplies. Each of the plurality of uninterruptible power supplies is provided corresponding to each of the plurality of components (m to 1) in accordance with the power supply redundancy (m) defined for each of the plurality of components, and power is supplied to at least the corresponding components. And sends state information indicating its own state to the control device. The control device collects status information from each of the plurality of uninterruptible power supplies, and stops the output of a predetermined uninterruptible power supply.

According to the uninterruptible power supply system of the present invention, m
Since one uninterruptible power supply supplies power to one component, when considering n sets of components, m
Xn uninterruptible power supplies supply power and backup. Therefore, even if one uninterruptible power supply is abnormal, there is no need to shut down (stop) the component unless a predetermined uninterruptible power supply corresponding to the component becomes abnormal. Further, since the status information is collected from each of the uninterruptible power supplies, the status can be accurately grasped, and the components can be shut down only when necessary. Furthermore, in fact, by making m uninterruptible power supplies corresponding to a certain component also correspond to other components,
Backup efficiency can be improved. In addition, since one component can include one or a plurality of electronic devices such as a computer, even if the configuration is complicated by adding a new server or disk device to an existing computer system, the computer system can be used. Can be dealt with without interrupting the operation.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a block diagram of an uninterruptible power supply system, schematically showing the configuration of a computer system to which the uninterruptible power supply system of the present invention is applied.

As shown in FIG. 1, an uninterruptible power supply system includes a plurality of uninterruptible power supplies (P) 1, which are power supply sources.
A control device 2 for controlling and monitoring these is provided. A plurality of components 4 to be supplied with power constitute a computer system. The plurality of components 4
Each consists of one or more electronic devices. The electronic device is, for example, a computer 41, a magnetic disk device, or the like.
The number of electronic devices that make up each component 4 is different (may be the same). In this example, the number of components 4 is n (n is a positive integer of 2 or more). In this example, n components 4 (C ₁ , C ₂ ,...)
C _n ) constitute, for example, a disk-sharing type cluster system (computer system) 400.

[0013] The plurality of uninterruptible power supplies 1 back up the plurality of components 4. That is, power is supplied. More specifically, the uninterruptible power supply 1 connects the corresponding component 4 to a commercial power supply, and supplies power using the standby power supply 11 when the commercial power supply 10 fails (FIG. 3).
reference).

Each of the plurality of uninterruptible power supply devices 1 is provided with each of the plurality of components 4 in accordance with a power supply redundancy (or multiplicity) m (m is a positive integer of 2 or more) determined for each of the plurality of components 4. Is provided in correspondence with. That is, m uninterruptible power supply devices 1 are provided so as to correspond to one component 4. For example, the uninterruptible power supply P ₁₁ ,
P ₁₂ ,... P _1m correspond to the component C ₁ (the same applies to the other components). Where m is the component C
_{1 is} the power supply redundancy (the number of uninterruptible power supplies to be connected to the component 4). In this example, it is assumed that the power supply redundancy of each component 4 is equal to m. Therefore,
Cluster of uninterruptible power supply 1 (cluster power supply) 100
Consists of a set of m × n uninterruptible power supply devices 1.

Each uninterruptible power supply 1 backs up at least the corresponding component 4. Therefore, one uninterruptible power supply 1 supplies power to at least the corresponding component 4, that is, at least each of one or a plurality of electronic devices (belonging to) the component 4 and backs up. Conversely, one component 4 is supplied with power by the corresponding m uninterruptible power supply devices 1 and is backed up.

The uninterruptible power supply system includes a monitoring control processing unit 42 in addition to the above configuration. Monitoring control processing unit 42
Is provided in each of the computers 41 included in the predetermined component 4 among the components 4. The component 4 including the computer 41 is called a CPU component. However, the component 4 does not always include the computer 41. The component 4 that does not include the computer 41 is monitored and controlled by, for example, a monitoring control processing unit 42 on the computer 41 of the CPU component 4. The monitoring control processing unit 42 is a computer
The monitoring and control processing program existing on the main memory (not shown) is executed by a CPU (Central Processing Unit, not shown) of the computer. The monitoring control processing program is, for example, the control device 2
From the computer 41 via the network 3 or provided by a program recording medium such as a CD-ROM.

The uninterruptible power supply system further includes a network 3, a control signal line 5, and a power (supply) line 6. In addition, for distinction, the network 3 is shown by a dashed line,
The control signal line 5 is indicated by a solid line, and the power line 6 is indicated by a dotted line.

The network 3 connects between the control device 2 and at least a predetermined component 4 (for example, a CPU component 4 or the like) among a plurality of components 4 to be supplied with electric power. Communication. That is, each of the monitoring control processing units 42 on the computer 4 included in the predetermined component 4 obtains (receives) power supply state information from the control device 2 via the network 3 and monitors this. Network 3
For example, it is composed of a LAN (local area network) and originally constitutes the cluster system 400, which is used by the uninterruptible power supply system for transmitting and receiving power supply state information (described later). Note that the network 3 may be dedicated to the uninterruptible power supply system.

The control signal line 5 connects between each of the uninterruptible power supply devices 1 and the control device 2 and is used for transmitting and receiving control signals between them. That is, the control device 2 receives status information indicating its own status from each of the plurality of uninterruptible power supply devices 1 and collects the information. Therefore, the state information is one of the control information. Further, the control device 2 transmits an output stop command as control information to a predetermined uninterruptible power supply 1 among the plurality of uninterruptible power supplies 1 to stop the output. The control signal line 5 is, for example, a dedicated signal line.

The power line 6 connects between each of the uninterruptible power supplies 1 and the plurality of components 4 and is used for supplying power from the former to the latter. That is, the uninterruptible power supply 1
Supplies power to the corresponding component 4 (each of the electronic devices) via the power line 6. The component 4 is connected to a commercial power supply (main power supply) 10 via the uninterruptible power supply 1 (see FIG. 3). When the power supply from the commercial power supply 10 to the component 4 stops for some reason, the uninterruptible power supply 1 supplies power from the uninterruptible power supply 1 to the component 4 for a predetermined time to protect data on the component 4. I do.

FIG. 2 is a block diagram of the uninterruptible power supply system, showing the details of the configuration of the computer system of FIG.

As shown in FIG. 3, the uninterruptible power supply 1
It has a well-known configuration and includes a standby power supply 11, a power control unit 12, and a communication control unit 13. The backup power supply 11 is a backup power supply that can operate the corresponding component 4 such as the computer 41 for a certain period of time or more, and is made of, for example, a lead storage battery. When the power supply from the commercial power supply 10 is stopped due to a power failure or the like, the power supply control unit 12 detects the power supply and detects the power supply and supplies the power to the component 4 to the commercial power supply 1.
Switch from 0 to the standby power supply 11. The communication control unit 13
The state of the power supply control unit 12 is checked, and the
The control signal line 5 transmits to the control device 2 whether the commercial power supply 10 or the standby power supply 11 is used as a power supply source to the power supply. Further, the communication control unit 13 receives a control signal (output stop command) from the control device 2 via the control signal line 5.

The configuration of the uninterruptible power supply 1 is not limited to the configuration shown in FIG. That is, although the uninterruptible power supply 1 shown in FIG. 3 is a so-called continuous commercial system, the present invention provides a continuous inverter system using the output of the inverter in a normal state.
Line interactive system with line transformer,
Other types of uninterruptible power supply 1 can be used.

In this example, the communication control unit 13 further provides information as to whether a failure has occurred in the standby power supply 11, that is,
The status information indicating the status of the own device is transmitted via the control signal line 5,
Transmit to the control device 2. As a result, status information indicating its own status is transmitted to the control device 2 from each of the plurality of uninterruptible power supply devices 1. The state information includes, for example, a contact signal, and outputs a signal “0 (or low level)” at normal times and a signal “1 (or high level)” indicating an abnormality at the time of failure. Note that a flag “1” indicating an abnormality may be set at a predetermined bit position of the serial signal at the time of failure.

Controller 2 (or uninterruptible power supply controller 2)
Monitors and controls the plurality of uninterruptible power supplies 1, collects status information from each of the plurality of uninterruptible power supplies 1, and stops the output of a predetermined uninterruptible power supply 1. For this purpose, the control device 2 includes, as shown in FIG.
1, controller 22, network connection processing unit 23,
It has a multiplexed power supply 24. Interface processing unit 21
Communicates with each of the plurality of uninterruptible power supply devices 1 via the control signal line 5. The controller 22 controls each of the plurality of uninterruptible power supplies 1 based on status information collected from each of the plurality of uninterruptible power supplies 1. The network connection processing unit 23 communicates with the computer 41 of the component 4 via the network 3. Each of the processing units 21 and 23 is realized by executing a program existing on a main memory (not shown) of a computer as the control device 2 by a CPU (not shown) of the computer. The controller 22 is realized by, for example, a logic circuit. Controller 2
2 and the network connection processing unit 23 each include a well-known communication unit for performing communication with a corresponding partner.

More specifically, as shown in FIG. 4, the control signal line 5 for each of the plurality of uninterruptible power supplies 1 is connected to a predetermined port of the interface processing unit 21. For example, uninterruptible power supply P ₁₁ is connected to a port I ₁₁ (This also applies to others). Therefore, by knowing (the number of) the port, the uninterruptible power supply 1 can be identified. The interface processing unit 2
Port 1 is a port for bidirectional communication.

The interface processing unit 21 collects status information from the plurality of uninterruptible power supplies 1. That is, the interface processing unit 21 captures (latches) the state information from each of the plurality of uninterruptible power supplies 1 at a predetermined timing. When the interface processing unit 21 takes in the status information from the plurality of uninterruptible power supply devices 1, it outputs these to the controller 22. The status information may be collected by an interrupt signal (described later) from the monitoring control processing unit 42.

When the controller 22 receives the status information from the interface processing section 21, it forms the power status information based on the status information. That is, the plurality of uninterruptible power supply devices 1
By performing a predetermined logical operation using the state information collected from each of the plurality of uninterruptible power supplies 1
Of power supply state information indicating the overall state of the power supply. The logical operation is executed by a logical circuit that realizes a logical expression of the logical operation. Therefore, the controller 22 in this example is composed of a dedicated logic circuit. The controller 22 transmits the power status information to a predetermined component 4 of the plurality of components 4 at a predetermined timing (described later). That is, the data is transmitted to the network 3 via the network connection processing unit 23.

The power state information is determined as follows. As described above, the status information of the uninterruptible power supply 1 is made up of contact signals, and a signal “1” is output when a failure occurs.
Here, the state signal of the uninterruptible power supply P ₁₁ and represented as "P _11" (the same is true for the other). In this case, (P
₁₁ ∪P ₁₂ ∪ · ∪P _1m ) ∩ (P ₂₁ ∪P ₂₂ ∪ · ∪P _2m )
When ∩ (P _n1 ∪P _n2 ∪ · ∪P _nm ) = 1, power supply state information = 1 is formed. That is, the uninterruptible power supply P _11, P ₁₂ ∪, either · · P _{1 m} is abnormal, and the uninterruptible power supply P _21, P _22, either · · P _2m is abnormal, and no If any one of the power failure power supply devices P _n1 , P _n2 ,... P _nm is abnormal, power status information is output.

After transmitting the power supply status information, the controller 22 stops the output of all the uninterruptible power supplies 1 after a lapse of a predetermined time from the transmission. That is, the output stop signal is output to all the ports via the interface processing unit 21. At this time, the output stop signal is sent in a predetermined order according to the type of the corresponding component 4 of the uninterruptible power supply 1. Thus, the cluster system 400 can be stopped reliably and safely. The power supply control unit 12 that has received the output stop signal via the communication control unit 13 transmits the commercial power 1 to the component 4.
0 and the power supply from the standby power supply 11 is stopped.

The controller 22 performs overdischarge prevention processing even when the power supply state information is not sent. That is, after the collection (reception) of the state information, the output of the uninterruptible power supply 1 that outputs “1” as the state information is stopped. Specifically, via the interface processing unit 21,
An output stop signal is output to the port that has received the signal “1”. The power control unit 12 that has received this via the communication control unit 13 stops the power supply from the commercial power supply 10 or the standby power supply 11 to the component 4. If the status information is “1”, it is highly likely that the standby power supply 11 is used,
Thereby, the consumption of the standby power supply 11 can be avoided,
In addition, the uninterruptible power supply 1 having an abnormality can be repaired while the other redundant uninterruptible power supply 1 is normal.

The controller 22 of the control device 2
The output of the uninterruptible power supply 1 stopped as described above is output to the component 4 that has been shut down in response to the recovery of the uninterruptible power supply 1. For this purpose, the controller 22 monitors whether the signal of the port receiving the signal “1” changes to “0” and outputs an output start signal to the port that has changed to “0”. The power control unit 12 that has received this via the communication control unit 13 starts supplying power to the component 4 from the commercial power supply 10 or the standby power supply 11.

In the control device 2, the multiplexed power source 2
4 includes, for example, a plurality of any of the uninterruptible power supply devices 1 as shown by a solid line in FIG. In this example, an uninterruptible power supply P ₁₁ and P ₁₂ is used. The multiplexed power supply 24 includes a plurality of (independent and separate) built-in power supplies 24 ′ different from the uninterruptible power supply 1 as shown by a dotted line in FIG.
May be configured. Thereby, due to the failure of the control device 2, each component 4 (computer 4
1) can be prevented from being damaged.

On the other hand, each of the monitoring control processing units 42 obtains power supply status information from the control device 2 via the network 3 and monitors this. The power supply state information is obtained, for example, from the control device 2 each time it is formed. If necessary, it can be obtained by an interrupt request. Monitoring control processing unit 4
2 receives the power supply state information transmitted from the control device 2 onto the network 3. When each of the monitoring control processing units 42 receives the power supply status information, it performs a shutdown process of all components 4. That is, the cluster system 400 is shut down. Specifically, the CPU of the computer 41 and all the information on the main memory are saved in an auxiliary storage (for example, RAID or the like), the auxiliary storage is stopped, and the CPU of the computer 41 is stopped.

FIG. 5 is a block diagram of the uninterruptible power supply system, and shows an example of a specific configuration of the uninterruptible power supply system of FIG.

In this example, the cluster system 400
Has six components 4 (C₁~ C₆Composed of
It is. Component C₁Is an example that includes multiple electronic devices
Yes, other components C_TwoEtc. include one electronic device
This is an example. That is, component C₁Has multiple magnetic
It is a RAID device composed of a disk device (HDD).
Component C_TwoAnd C_ThreeCluster with each other
Computers, each of which is a monitoring control processing unit 42
Having. Component C_FourControls the RAID device
RAID controller. Component C_Five
Is a network device 31 that controls the network (eg,
For example, a hub). Component C ₆Is the control unit
2.

The components C ₂ and C ₃ are RAID
The RAID device (memory) is shared via the controller, the data is shared, and the same processing is performed (cluster or clustered). That is, the cluster system 400 is a shared disk (or memory) cluster. Since they share a disk or a memory, they transmit and receive data via the network 3 or via a dedicated signal line (not shown). For example, one of the components C ₂ and C ₃ is in an operating state (active state) and the other is in a waiting state (standby state). In this case, the side that has been booted earlier is brought into the operating state. The side to be booted first may be determined in advance. In order to share data, data is periodically transmitted from the active side to the waiting side.
It is also possible to perform the same processing components C ₂ and C ₃ is operated in parallel.

The power supply redundancy m in the _six components C _{1 to} C ₆ is “2” in this example. Thus, six components C ₁ -C _6, respectively, Fig. 5
As shown in (1), backup (power supply) is performed by two uninterruptible power supply devices 1. Incidentally, for example, the value displayed in the component C ₁ and (5), the power 5
KVA (kilovolt amperes) (the same applies to other cases). While component C ₂ and C ₃ is a computer 41 that is clustered into each other, the uninterruptible power supply 1 of each other are common. That is, each of the plurality of uninterruptible power supplies P ₂₁ and P ₂₂ (that is, P ₃₂ and P ₃₁ ) provided corresponding to the component C ₂
Component C ₂ and other components C ₃
Supply power to In addition, components C ₄ and C ₆
Are not clustered, but are backed up by a plurality of common uninterruptible power supplies _P41 and _P42 (ie, _P61 and _P62 ).

In this example, according to the above notation,
_{(P 11 ∪P 12) ∩ (} P 21 ∪P 22) ∩ (P 41 ∪P 42) ∩
When (P ₅₁ ∪P ₅₂ ) = 1, power supply status information = 1 is formed. That is, any one of the uninterruptible power supply devices P ₁₁ and P ₁₂ , any one of the uninterruptible power supply devices P ₂₁ and P ₂₂ , and any one of the uninterruptible power supply devices P ₄₁ and P ₄₂ and the uninterruptible power supply If any one of the power supply devices P ₅₁ and P ₅₂ is abnormal, power supply state information is output. That is, in this state, if an abnormality occurs in any of the uninterruptible power supply devices 1, any of the components 4 configuring the cluster system 400 does not operate, and there is a high possibility that the system will go down.

When the plurality of uninterruptible power supplies 1 are in such a state and the power supply state information = 1 is formed, the monitoring control processing unit 42 which has received the power supply state information from the control unit 2
Performs shutdown processing of the cluster system 400 (all components 4) as follows. That is, all information on the CPU and the main memory of the computer 41 is R
Send it to the AID controller and stop its CPU. The RAID controller sends information from the computer 41 to the RAID and stops. RAID is RA
Writes information from the ID controller. This allows
The cluster system 400 can be shut down reliably and safely.

On the other hand, after transmitting the power supply status information, the control device 2 performs output stop processing of the plurality of uninterruptible power supply devices 1 as follows. That is, the timing of completion of each process in the shutdown process can be accurately predicted. Therefore, the control device 2 stops the outputs of all the uninterruptible power supply devices 1 in a predetermined order according to a predetermined delay time interval. That is, components C ₂ and C ₃
In two stopped timing the CPU of computer 41 is to stop the output of the uninterruptible power supply P ₂₁ and P _22. Thus, stopping the output of the component C ₂ and C _3. Thereafter, the control unit 2 stops the output of the uninterruptible power supply P ₄₁ and P ₄₂ at the timing of stopping the RAID controller, RAID at the timing when completing the writing of information for the uninterruptible power supply P ₁₁ and P ₁₂ Stop output. In practice, the uninterruptible power supply P ₄₁ and P ₄₂ in this embodiment, since also the power supply of the control device 2, the output will not be stopped (or, is to be finally output stop). In addition, the uninterruptible power supply _P51 and P
_The output ₅₂ may be stopped at any of the above timings.

Thereafter, the maintenance staff repairs the uninterruptible power supply unit 1 in which the abnormality has occurred, and changes the status signal from “1” to “0”.
And The controller 2 (of the controller 22) that has been monitoring the status signals from the plurality of uninterruptible power supply units 1 has changed the power status information from “1” to “0” due to the restoration. The output of the information is stopped, and the output start processing of the (one or all) uninterruptible power supply 1 is performed. That is, for example, the output of the (one or all) uninterruptible power supply 1 is started in the reverse order of the output stop processing described above. Thus, the power of the cluster system 400 can be (re) turned on accurately and safely.

FIG. 6A shows a control processing flow of the uninterruptible power supply 1 which is executed by the control device 2, and particularly shows a case where status information is collected by polling and output stop processing is performed when appropriate.

In FIG. 6A, the status information is collected by receiving the status information from each of the plurality of uninterruptible power supplies 1 (step S11), and a predetermined logical operation is performed based on the status information (step S11). S12), it is checked whether or not the power supply status information (signal "1") has been formed (there is an abnormality) (step S13). If there is no abnormality, after performing an overdischarge prevention process for the uninterruptible power supply 1 that has output the status information "1" (step S14), the process proceeds to step S14.
Repeat steps 11 and below. If there is an abnormality, the power supply status information is transmitted over the network 3 (that is, to each of the monitoring control processing units 42) (step S15), and after a predetermined time has elapsed, the outputs of all the uninterruptible power supply devices 1 are output. It stops (step S16).

FIG. 6B shows a control processing flow of the uninterruptible power supply 1 executed by the control device 2 and shows a case where power supply state information is transmitted by an interrupt request.

In FIG. 6B, when an interrupt signal for requesting power supply status information is received from any of the computers 41, that is, the monitoring control processing unit 42 via the network 3 (step S21), based on the status information at that time. The power supply status information is formed on the network 3 and transmitted to the network 3 (that is, to each of the monitoring control processing units 42) (step S22).

FIG. 7A shows a control processing flow of the uninterruptible power supply 1 which is executed by the control device 2.
The case where the output start processing is performed after the output stop processing and the overdischarge prevention processing of FIG.

After step S16 in FIG. 6A, after step S11, if it is determined that the power supply state information (signal "1") is not formed (no abnormality) in step S13, all uninterruptible power It is checked whether the status information of the power supply 1 is “0” or “1” (step S17). No particular processing is performed for the uninterruptible power supply 1 whose status information is "1", and an output start signal is output for the uninterruptible power supply 1 whose status information is "0" (step S18), and step S14 is performed. Repeat the following.

FIG. 7B shows a monitoring control processing flow of the uninterruptible power supply 1 executed by the monitoring control processing section 42.

At the first startup of the monitoring control processing section 42 (at the time of installing the program), initial processing such as opening a communication port for communication with the control device 2 is performed (step S31). In addition, as an initial process, an interrupt signal (in the case of FIG. 6B) for requesting status information is transmitted to the control device 2. In this case, as indicated by INT, step S32 is omitted and step S33 is performed.
Do the following:

Thereafter, a request for power supply status information is transmitted to the monitoring device 2 via the network 3 (step S32),
The power supply status information is received (step S33), and it is confirmed whether or not the power supply status information “1” is received (step S3).
4). If power supply state information “1” has not been received, step S33 and subsequent steps are executed.

When the power status information "1" is received, the status information is monitored for a predetermined time (step S3).
5). That is, after the lapse of the predetermined time, the power state information “1” is received as in step S33, and it is reconfirmed whether the power state information “1” is received as in step S34 (step S34). S36). If “1” of the power status information has not been received (normal), step S33 and subsequent steps are executed. This is a case where the uninterruptible power supply 1 recovers power within the predetermined period.

When the power supply status information “1” is received (abnormal), pre-processing for shutdown such as data saving processing is performed (step S 37), and
Is performed (step S38).

Although the present invention has been described with reference to the embodiments, the present invention can be variously modified within the scope of the gist.

For example, the power supply redundancy of the plurality of components 4 may be set to different values. That is, as shown in FIG. 8 (A), the power redundancy of components C ₁ and m, may be such a power redundancy of components C ₂ (m-1). FIG. 8A shows a part of the uninterruptible power supply system of FIG. As a result, the power supply redundancy can be set to “1” depending on the type of the component 4. Therefore, a more flexible uninterruptible power supply system can be configured in response to the complexity of the component system.

The cluster system 400 shown in FIG.
And a cluster 100 of the uninterruptible power supply 1 corresponding to the set, and a plurality of sets may be provided as shown in FIG. 8B. However, in this case as well, the control device 2 only needs to have one in common for a plurality of sets, and one control device 2 controls and monitors the whole. The control device 2 forms the power supply status information for each set, and the destination cluster system 400
The identification information such as the address of the (monitoring and control processing unit 42) is added and transmitted to the network 3. Monitoring control processing unit 4
2 performs shutdown processing of the component 4 if the own address is added to the received power state information, and discards the power state information if it is not added.

In the above description, the uninterruptible power supply 1
Is stopped after a lapse of a predetermined time after the reception of the status signal indicating abnormality, but may be performed based on a shutdown notification independently of the reception. For example, when each of the monitoring control processing units 42 indicates that the power status information indicates an abnormality,
After transmitting a shutdown notification to the control device via the network 3, the component 4 is shut down. Then, when the control device 2 receives the shutdown notification, the output of the uninterruptible power supply 1 is stopped. Further, the control device 2 outputs the output of the uninterruptible power supply 1 stopped in response to the shutdown notification to the uninterruptible power supply 1
In response to the recovery, the component 4 that has been shut down is output.

In the above description, the component 4
Are computers, disk devices (RAID), RAI
Although the D controller and the network device were used, the present invention is not limited thereto, and may be various electronic devices constituting a computer system such as a printing device, a display device, an input device, an output device, and various storage devices. In addition, the present invention is not limited to the configuration of the uninterruptible power supply 1, and the control device 2 and its controller 22 can be realized by either hardware or software.

[0059]

As described above, according to the present invention,
In an uninterruptible power supply system, by supplying power to each of a plurality of components with the number of uninterruptible power supplies corresponding to the power supply redundancy, the components are shut down unless all uninterruptible power supplies corresponding to the component fail. Since the status information is collected from each of the uninterruptible power supplies, the status can be accurately grasped, and a plurality of power supplies corresponding to one component can be obtained. By making the power failure power supply device compatible with other components, the backup efficiency can be improved. In addition, by including one or more electronic devices such as a computer in one component, it is possible to cope with a complicated configuration of the computer system.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of an uninterruptible power supply system.

FIG. 2 is a configuration diagram of an uninterruptible power supply system.

FIG. 3 is a configuration diagram of a computer system.

FIG. 4 is an explanatory diagram of an uninterruptible power supply system.

FIG. 5 is an explanatory diagram of an uninterruptible power supply system.

FIG. 6 is an uninterruptible power supply system processing flow.

FIG. 7 is an uninterruptible power supply system processing flow.

FIG. 8 is a configuration diagram of another uninterruptible power supply system.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Uninterruptible power supply 2 Control device 3 Network 4 Component 5 Control signal line 6 Power line

Claims (8)

[Claims] A plurality of uninterruptible power supplies each of which supplies power to a plurality of components each including one or a plurality of electronic devices; and a control device that monitors and controls the plurality of uninterruptible power supplies. Each of the uninterruptible power supplies is provided corresponding to each of the plurality of components according to the power supply redundancy determined for each of the plurality of components, supplies power to at least the corresponding components, and sets its own state. Transmitting the status information to the control device, the control device collecting the status information from each of the plurality of uninterruptible power supplies, and stopping the output of a predetermined uninterruptible power supply. Blackout power system. 2. The uninterruptible power supply system according to claim 1, wherein the control device includes a multiplexed power supply configured using a plurality of any of the plurality of uninterruptible power supplies. 3. The uninterruptible power supply system according to claim 1, wherein the control device includes a multiplexed power supply different from the plurality of uninterruptible power supplies. 4. The status of the plurality of uninterruptible power supplies is indicated by the control device performing a predetermined logical operation using the status information collected from each of the plurality of uninterruptible power supplies. The uninterruptible power supply system according to claim 1, wherein the power supply status information is formed and transmitted to a predetermined component among the plurality of components. 5. The uninterruptible power supply system according to claim 4, wherein the logical operation is executed by a logical circuit that realizes a logical expression of the logical operation. 6. The uninterruptible power supply system further includes: a monitoring control processing unit provided in a computer included in each of the plurality of components; and the control device and the predetermined component in at least the plurality of components. And a network connecting between the power supply status information and the power supply status information from the control device via the network. Uninterruptible power supply system. 7. Each of a plurality of uninterruptible power supplies provided corresponding to a first component supplies power to the first component and a second component other than the first component, and The uninterruptible power supply system according to claim 1, wherein the two components include computers that are clustered together. 8. The uninterruptible power supply system according to claim 1, wherein power supply redundancy levels determined for each of the plurality of components are equal to each other.