JPH09128103A - Power source disconnecting system for computer system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain the power disconnection system for a computer system improving the operability of a user and a supervisor and operation security by installing a control computer system controlling the disconnection of a power source. SOLUTION: The control computer system 1 simultaneously informs the other computer systems on a network 3 that a privilege user with the privilege of simultaneous disconnection logs in. Then the computer system 1 investigates the shared relation and the mutually depending relation between the respective computer systems on the network 3 and based on this investigated information, decides the correct content and the order of series of preprocessing such as the release of resource sharing which is necessitated before the disconnection processing of the respective computer systems on the network 3. In accordance with this decision, the computer system 1 commands series of preprocessing and commands the execution of the disconnection of the power source to the respective computer systems on the network 3 and disconnects the control power source of the computer system 1 itself.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a power-off system for computer systems, and more particularly to a power-off system for collectively performing power-off of a plurality of computer systems connected to each other via a network.

[0002]

2. Description of the Related Art Conventionally, the power-off of computer systems connected to each other by a network means that the computer system receives a power-off signal from the network, as disclosed in Japanese Patent Laid-Open No. 63-131640. Accordingly, the computer system itself executes the power-off, and the problem of when to generate the power-off signal has not been solved. Therefore, the user and the administrator of the computer system had to execute the power-off operation in a correct procedure while checking the operation status of each computer system connected via the network.

[0003]

The first problem is that, in the prior art, when to generate a power-off signal is unknown, and an actual system cannot be constructed. The reason is that it is not always possible to generate the power-off signal at any timing when a plurality of computer systems connected via a network have a mutual dependency. In other words, if a plurality of computer systems connected via a network have an interdependency, if one computer system is unconditionally turned off, the operation of another computer system may become incorrect, This is possible in the operating environment of the system.

[0004] The second problem is that, in the prior art, as is apparent from the first problem, the correct power-off means of a plurality of computer systems connected to the network is determined by the user of each computer system and the management. Must perform the power off operation in the correct procedure while checking the operation status of each computer system one by one,
In particular, when the number of computer systems connected to the network is large, it is necessary to take a great deal of trouble to turn off the power of all the computer systems.

A third problem is that, in the prior art, it is determined whether a user or an administrator who has generated a power-off signal for a certain computer system has authority to power off the computer system. In other words, the operational security of the computer system cannot be maintained sufficiently.

An object of the present invention is to improve the operability of a user and an administrator by realizing a method of collectively turning off power to a plurality of computer systems connected via a network. It is an object of the present invention to provide a computer system power-off method capable of improving the security of the operation of the computer system by realizing a method of checking the user authority when the power is turned off.

[0007]

According to the present invention, in a network to which a plurality of computer systems are connected, one management computer system for managing power-off of each computer system is installed, The management computer system includes a disconnection authority notifying unit that simultaneously notifies the plurality of computer systems that a privileged user who has the right to collectively disconnect has logged in, and a resource sharing relationship between the plurality of computer systems. Investigation message sending means for sending an investigation message for investigating interdependence to the plurality of computer systems, and resources required before disconnection processing based on the investigation information obtained from the plurality of computer systems Preprocessing procedure that determines the correct content and order of preprocessing such as sharing cancellation Determining means, preprocessing instruction means for instructing the plurality of computer systems to perform the preprocessing in accordance with the procedure determined by the preprocessing procedure determining means, and instructing the plurality of computer systems to execute power-off. There is provided a power-off method for a computer system characterized by comprising power-off command means and management-computer-system power-off means for powering-off the management computer system itself.

Further, according to the present invention, each computer system has a right to receive the notification source computer system name and its user name notified from the disconnection authority notifying means and turn off the power of its own computer system. Is judged whether or not it is given,
An authentication judgment means for notifying the management computer system of the authentication result, and a investigation for receiving the investigation message from the investigation message transmission means, conducting the requested investigation, and transmitting necessary investigation information to the management computer system. Information responding means, pre-processing executing means for receiving the pre-processing command and executing processing according to the command, and judging whether or not the power can be turned off at present, and the result of the judgment is given to the management computer. A power-off permission / inhibition determining means for notifying the system, and a power-off execution instruction for power-off of the plurality of computer systems from the management computer system power-off means, power-offs itself, and sends a disconnection completion message to the management computer system A computer system power-off means for transmitting to a computer Power down scheme over Tashisutemu is obtained.

Further, according to the present invention, the authentication judging means notifies the management computer system of the result when the authentication is not successful in the judgment, and the management computer system receives the notification. A computer system power-off method is provided which is characterized in that the subsequent processing is stopped after that.

Further, according to the present invention, when the disconnection completion message is not notified to the management computer system within a predetermined time, the management computer system itself is not powered off and the disconnection is performed. There is provided a computer system power-off method characterized by displaying on the display unit of the management computer system that there is no notification of a completion message.

Further, according to the present invention, when the response from the authentication judging means, the investigation information responding means, or the power-off possibility judging means to the management computer system is not within a predetermined time, , The disconnecting authority notifying unit notifies the relevant computer system of the disconnecting authority, the survey message transmitting unit notifies the survey message, and the preprocessing instruction unit notifies the preprocessing instruction. The notification is repeated a predetermined number of times until there is, and if there is still no response, the subsequent processing of the management computer system is stopped, and that effect is notified to all other computer systems connected to the network. A computer system power-off method can be obtained.

[0012]

In the power-off method according to the present invention, the power-off of all the computer systems on the network is executed only by the user and the administrator from the management computer system inputting the batch disconnection command once. be able to. This greatly simplifies the work of the user and the administrator for turning off the power of all the computer systems on the network.

The batch disconnection command issued from the management computer system implements a mechanism for determining whether execution of power-off of each computer system on the network is permitted in the system. However, there is no security problem that the computer system can be turned off without permission.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below in detail with reference to the drawings. FIG. 1 is a diagram schematically illustrating an example of a functional configuration of software for implementing the present invention. Each of the management computer system 1 and the non-management computer system 2 connected by the network 3 has a function for realizing the power-off system of the present invention, and these functions mutually exchange information. The power supply is cut off by the method of the present invention by proceeding. More specifically, the management computer system 1 (1) has a function of simultaneously notifying other computer systems on the network 3 that a privileged user who has the right to disconnect all at once has logged in (hereinafter, Disconnection authority notifying means 1 having function (1))
0, (2) Survey message transmitting means 11 having a function (hereinafter, referred to as function (2)) for investigating a resource sharing relationship and a mutual dependency relationship between computer systems on a network, (3) the above function (2 Function for determining the correct content and sequence of a series of pre-processing such as cancellation of resource sharing, which is required before disconnecting each computer system on the network 3 based on the survey information obtained by , A function (3) for preprocessing procedure determining means 12, (4) a function for instructing a series of preprocessing to each computer system on the network according to the procedure determined by the function (3) (hereinafter, Function (4)
(5) power-off command means 14 having a function (hereinafter, referred to as function (5)) for instructing each computer system on the network 3 to execute power-off, The computer system 1 is provided with a power-off means 15 for the management computer system having a function of powering off itself (hereinafter, referred to as function (6)).

The management computer system 1 includes a user,
The function (1) is called when the operation is performed by the administrator. Each of the above functions can be implemented by software as a function in an operating system that operates on the management computer system. For the function (6), power supply control as hardware is necessary, but it is possible to realize this from a software instruction by a known conventional technique.

All the computer systems connected to the network 3 (2 in FIG. 1 is one of them) are (1 ') the name of the computer system notified from the management computer system 1. And a user name, and a function that authenticates whether it has been given the right to power itself off (hereinafter,
Authentication determining means 20 having a function (referred to as function (1 ')),
(2 ′) a function of responding necessary information to an inquiry from the management computer system 1 regarding a shared resource and an interdependency with another computer system on the network 3 (hereinafter referred to as a function (2 ′)) (3 ′) before having a function (hereinafter referred to as a function (3 ′)) of executing various processes including power-off in accordance with a command from the management computer system 1. Processing execution means 22, (4 ') power-off possibility determination means 23 having a function (hereinafter referred to as function (4')) for judging whether or not the power supply itself can be currently cut off and notifying the result to the management computer; , (5 ') a computer system power-off means 24 having a function of disconnecting itself (hereinafter, referred to as function (5')).

Upon receiving the message notification from the management computer system 1, the function (1 ') is called. Each of the above functions can be implemented by software as a function in the operating system operating on the computer system 2. Regarding the function (5 '), it is necessary to control the power supply as hardware, but it is possible to realize this from a software instruction by a known conventional technique.

FIG. 2 is a diagram schematically showing an example of a software processing operation based on the functional configuration shown in FIG. "Administrative computer system 1 with privileged user name
The user performs the operation of “login to”, and the subsequent procedures are performed by the internal processing of the management computer system 1 and the other computer systems 2 and the transmission and reception of information between the two.
This is realized by automatically executing the operations up to 110.

First, a user or an administrator logs in to the management computer with a privileged user name (step S100). If this succeeds, the management computer system 1 simultaneously notifies other computer systems that the privileged user has logged in (step S).
101). The processing in step S101 is realized by the function (1). When the computer system 2 receives this notification, it authenticates whether or not the notification source computer system name and the user name included in the notification message have the disconnection right on the own machine, and transmits the authentication result to the management computer system 1. (Step S1)
02). The processing in step S102 is realized by the function (1 '). When the management computer system 1 receives the OK response, it sends a message for investigating the resource sharing relationship and the interdependency to the computer system 2.
(Step S103). The process of step S103 is realized by the function (2). When the computer system 2 receives this message, it checks that the request has been made and responds with the necessary information (step S1).
04). The processing in step S104 is realized by the function (2 '). When the management computer system 1 receives this information, it determines the content and order of pre-processing for batch cutting based on the information (step S105).
The process of step S105 is realized by the function (3). A pre-processing command for each computer system is issued to the computer system 2 in the correct order determined here (step S106). The processing in step S106 is realized by the function (4). The computer system 2 that has received the command executes the processing according to the command, determines whether or not it can disconnect itself, and returns the result of the determination as a response to the management computer system 1 (step S107). The processing in step S107 is realized by the function (3 ') and the function (4'). When the management computer system 1 receives the OK response, it issues a disconnection instruction to all the computer systems on the network 3 (step S108). The process in step S108 is realized by the function (5). When the computer system 2 receives this instruction, it performs its own disconnection processing and notifies a disconnection completion message (step S1).
09). The processing in step S109 can be realized by the function (5 '). The management computer system 1 receiving this message performs its own disconnection processing (step S110). The process of step S110 is realized by the function (6).

As an exception process, if the authentication is unsuccessful in the “authentication of the disconnecting right of the notification source computer system name and the user name on the own machine” shown in step S102, the result is returned to the management computer system. 1 and the management computer system 1 receives the notification and stops the subsequent processing.

In the step S107 of "execution of processing in accordance with the command and determination of whether or not to cut itself", if it is determined that cutting of the self is "no", the result is transmitted to the management computer system 1. , And the management computer system 1 receives it, and stops the subsequent processing.

In the "notification of disconnection of itself and disconnection completion message" shown in step S109, if the disconnection completion message is not notified to the management computer system 1 within a certain period of time, "own itself" shown in step S110. “Disconnect” is not executed and the fact that there is no message notification is displayed on the screen of the management computer system 1 and the next operation by the user is waited for.

If there is no response to the management computer system 1 in step A102, step S104, or step S107 within a certain period of time, the corresponding computer system is sent to step S101, step S103, respectively. , Step S10
6 is repeated and repeated a certain number of times until there is a response. If there is still no response, the subsequent processing of the management computer system 1 is stopped, and this is repeated for all other computer systems connected to the network. Notify.

[0024]

According to the present invention, the work concerning the power-off of the user and the administrator of the computer system connected to the network is greatly simplified. The reason is that it is possible to execute a single batch disconnection command input from the management computer system without turning off the power of a plurality of computer systems connected to the network.

Further, according to the present invention, there is no fear that a security problem occurs when the power of another computer system is turned off. The reason is that a batch disconnection command issued from the management computer system determines whether execution of power-off of each computer system on the network is permitted on the system.

[Brief description of the drawings]

FIG. 1 is a diagram schematically illustrating an example of a functional configuration of software for implementing the present invention.

FIG. 2 is a diagram schematically illustrating an example of a software processing operation based on the functional configuration illustrated in FIG. 1;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Management computer system 2 Computer system 3 Network 10 Disconnection authority notification means 11 Investigation message transmission means 12 Preprocessing procedure determination means 13 Preprocessing instruction means 14 Power off instruction means 15 Power off means 20 Authentication judgment means 21 Investigation information response means 22 Pre-processing execution means 23 Power supply cut-off determination means 24 Computer system power-off means

Claims (5)

[Claims] 1. In a network to which a plurality of computer systems are connected, one management computer system that manages power-off of each computer system is installed, and the management computer system comprises:
A disconnection authority notifying means for simultaneously notifying the plurality of computer systems that a privileged user who has the right to collectively disconnect has been logged in, and a resource sharing relationship and an interdependence relationship between the plurality of computer systems are investigated. Based on the survey information obtained from the plurality of computer systems and the survey message transmitting means for transmitting the survey message to the plurality of computer systems, before releasing the resource sharing required before the disconnection processing. Preprocessing procedure determining means for determining the correct content and order of processing,
Pre-processing command means for commanding the pre-processing to the plurality of computer systems and power-off command means for commanding the power-off to the plurality of computer systems according to the procedure determined by the pre-processing procedure determining means. When,
A power-off method for a computer system, comprising a management-computer-system power-off means for powering-off the management computer system itself. 2. Each of the computer systems receives the notification source computer system name and its user name notified from the disconnection authority notifying means, and is given the right to power off its own computer system. Authentication judgment is performed to determine whether or not there is, and the authentication judgment means for notifying the management computer system of the authentication result and the investigation message sent from the investigation message transmission means to carry out the requested investigation and to provide the necessary investigation information. Survey information response means for transmitting to the management computer system,
Pre-processing executing means for receiving the pre-processing command and executing the process according to the command, and a power supply for judging whether or not the power can be turned off at present and notifying the management computer system of the result of the judgment. A computer system that receives disconnection permission / inhibition determination means and a power-off execution command for the plurality of computer systems from the management computer system power-off means, disconnects its own power source, and transmits a disconnection completion message to the management computer system. The power-off method for a computer system according to claim 1, further comprising power-off means. 3. The authentication judging means notifies the management computer system of the result when the authentication is not successful in the judgment, and the management computer system performs the subsequent processing after receiving the notification. The power-off method for the computer system according to claim 2, wherein the power-off method is stopped. 4. When the disconnection completion message is not notified to the management computer system within a predetermined time, the management computer system itself is not powered off, and the disconnection completion message is notified. 4. The power-off method for the computer system according to claim 2, wherein the absence is displayed on the display unit of the management computer system. 5. When a response from the authentication determination unit, the investigation information response unit, or the power-off possibility determination unit to the management computer system is not received within a predetermined time, the corresponding computer system is re-transmitted. For each, the disconnection authority notification means in the disconnection authority notification, the investigation message transmission means notification of the investigation message,
The pre-processing command means notifies the pre-processing command, repeats the notification a predetermined number of times until a response is received, and if there is still no response, the subsequent processing of the management computer system is stopped, and to that effect the network concerned. 5. The power-off method for a computer system according to claim 2, wherein the notification is sent to all other computer systems connected to.