JPH06324774A - Live line insertion and pulling-out system - Google Patents

Abstract

PURPOSE:To reduce the influence of the live line insertion and pulling-out of units on the activation of an information processing system to the absolute minimum. CONSTITUTION:The corresponding relation of attachable and detachable units to softwares using those units is stored in an information table 11. A program execution managing means 12 manages the corresponding relation and the rising and stop of the softwares, and a live line insertion and pulling-out supporting means 13 and a rising and stopping means 14 receive the corresponding relation from the program execution managing means 12, and prepare list information for displaying it as a list. Moreover, the rising and stopping means 14 instructs the rising or stop of the selected softwares to the program execution managing means 12 as necessary.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot-swap system for a circuit board, a magnetic disk device, etc. in a non-redundant system.

[0002]

2. Description of the Related Art In a conventional computer system, if a device fails or its function is changed while the system is operating, it is necessary to remove or insert a circuit board or a magnetic disk device, and manage software at that time. Regarding the above, the following two measures were considered.

First, there is a duplex system for duplicating all the devices, devices that are likely to fail, or devices that change their functions frequently. In this system, even if one device is removed or inserted, the operation can be supplemented by the other device, so without removing the software that uses that device and interrupting termination, the device can be removed even while the system is operating. Alternatively, it is configured to be insertable.

Secondly, the end of software interruption in non-redundant systems is raised. In this non-redundant system, conventionally, there is no means for managing the software that uses the device to be removed or inserted, so once the system is stopped and interrupted, the device is removed. Or the insertion work was done, and then the system was restarted.

[0005]

However, the duplication of all or some of the devices as in the first system of the prior art generally causes a great amount of work and cost in system construction. Give birth. Also,
There is a problem that it is generally difficult to change an existing non-redundant system to a new redundant system.

Therefore, in order to eliminate these problems, a means for constructing a non-redundant system is taken, but in the case of such a system, the device is used to remove it. Regardless of whether or not it is necessary to stop all the software running in the system, suspend and terminate it, and then perform the removal work, it is necessary to stop even the software that does not need to be stopped. In addition, since the software related to the device is unknown after the device is inserted, it is inefficient because all the software needs to be started and then confirmation work is required.

The present invention has been made in order to solve such a problem, and removes or inserts a circuit board, a magnetic disk device, etc. during system operation (hereinafter referred to as hot-line removal work or hot-line insertion work. Also, the hot-line removal work and the hot-line insertion work are collectively referred to as the hot-line insertion / removal work.) The software that is affected by this is managed and the information is notified to the worker, so that the worker is affected to the system. It is an object of the present invention to provide a hot-plugging / unplugging method that can instruct the termination and start-up of software so as to minimize the required number.

[0008]

In order to achieve the above object, the hot-swap method of the present invention is as follows. That is, in an information processing system that includes an information processing device to which a circuit board and a magnetic disk device are detachably mounted, and a terminal device that is connected to the information processing device by a line and that includes a display device and a keyboard, And an information table that stores the correspondence between the magnetic disk device and the software that uses them, a writing / reading unit that manages writing and reading of the correspondence stored in the information table, and software selected by an operator Program execution management means having a start / stop execution instruction means for managing the start and stop of the program, and read by the program execution management means,
Hot-plugging / unplugging having list-information creating means for creating list information for displaying a list of software names that use a circuit board and a magnetic disk device for performing hot-plugging / unplugging work and providing the list information to the terminal device Read by the support means and the program execution management means,
Create list information for displaying the relationship between all circuit boards and all magnetic disk devices that can be hot-swap operations and the software that uses them, as a list,
List information creating means for providing the list information to the terminal device, and software for starting or stopping by looking at the list displayed on the terminal device and selecting the software through the keyboard The startup / stop means having the startup / stop selection instructing means for transmitting to the program execution management means a request to start or stop the generated software is provided.

[0009]

According to the hot-swap system described above, the correspondence relation between the circuit board, the magnetic disk device, etc., which can be the target of the swath, and the software that uses them is stored in advance in the information table. By displaying the correspondence relationship as a list on the terminal device using the line insertion / extraction support means, it is possible to recognize the correspondence relationship that causes a problem when the tie line insertion / extraction is performed. After that, if necessary, software is selected based on the list displayed by using the program execution management means and the start / stop means, and execution of start or stop is instructed. Thus
It is possible to minimize the start-up or stop of the software at the time of inserting and removing the tie lines.

[0010]

FIG. 3 is an example of a system configuration diagram according to the present invention, in which a circuit board 32 and a magnetic disk device 34 (hereinafter referred to as the circuit board 32) which can be a target of hot-line insertion and removal work
And the magnetic disk device 34 are collectively referred to as a unit), and an information processing device 31 to which the information processing device 31 is detachably mounted, and a terminal device 36 connected to the information processing device 31 via a signal line group. Further, the information processing device 31 has a circuit board number 33 for designating the circuit board 32 and a magnetic disk device number 35 for designating the magnetic disk device 34 (hereinafter, circuit board number 33 and magnetic disk device number). 35 is also referred to as a unit number), and the terminal device 36 includes a display device 36a for displaying a software name list and the like, and a keyboard 36b having a kana key and an alphanumeric key for inputting information. It consists of

FIG. 2 is an embodiment of the hardware configuration of the information processing device 31, which is a central processing unit (CPU) 2.
1, storage device (memory) 22, ROM 23, input / output control device (I / O control device) 24, small computer system interface control device (SCSI control device)
25, a multi-purpose control device (MISC control device) 26, a hard disk drive (HDD) 27, a floppy disk drive (FDD) 28, the circuit board 32, and the magnetic disk device 34.

The CPU 21 controls the entire information processing apparatus including the program according to the present invention. Memory 22
Stores a program and data necessary for the operation of the information processing apparatus including the program according to the present invention. ROM
Reference numeral 23 stores initial information of the correspondence relationship between the unit and software that uses the unit. I / O
The control device 24 includes a CPU 21, a memory 22, and an SC.
It controls data between the SI controller 25 and the MISC controller 26.

The SCSI control device, in accordance with a command from the CPU 21, reads out or writes the data in the HDD 27 and specifies the address of the memory area.
Control the bus. The MISC controller 26 is a CPU
According to the command from 21, the control of various interfaces connected to the FDD 28 and a terminal device outside the information processing device is performed. The HDD 27 stores programs and data necessary for the operation of the CPU 21. Further, the program according to the present invention may be stored. FDD
Reference numeral 28 stores each program and data for backup when the system is stopped.

FIG. 1 is a software configuration diagram of the information processing apparatus 31, which is composed of an information table 11, a program execution management means 12, a hot-swap support means 13, and a start / stop means 14, and is stored in a memory 22. Is stored.
Alternatively, it may be partially stored in the HDD 27 due to the memory capacity.

The information table 11 stores the correspondence relationship between the units and software that uses the units. The initial information is stored in the ROM 23 in advance, and is transferred by an instruction of the CPU 21 when the system is started up before performing the hot-swap operation. However, when the operator inputs the update / addition / deletion of the information table 11 to the keyboard 36b during system activation, the CPU 21 judges the input data and the program execution management means 12
Is executed, the information table 11 can be updated / added / deleted.

The program execution management means 12 is a program for managing the correspondence relationship between the units and the software using the units using the information table 11. When the program execution management means 12 is executed by the CPU 21, the program execution management means 12 is activated. When performing the wire removal work, information such as the name of the software related to the unit specified to be removed is read from the information table 11, and when performing the hot-line insertion work, the software related to the inserted unit is read. It has a writing / reading means 12a for reading information such as a name from the information table 11. Further, the program execution management means 12 has a start / stop execution instructing means 12b that causes the OS (operating system) to start and stop the software selected by the operator via the CPU 21.

The hot-swap support means 13 has a list information creation means 13a for creating list information for displaying the information read from the information table 11 as a list on the display device 36a by executing the program execution management means 12. . The list allows the operator to confirm which software is used by the unit performing the hot-swap operation.

The startup / stop means 14 has a list information creating means 14a for creating list information for displaying the information read from the information table 11 as a list on the display device 36a by the execution of the program execution managing means 12. . The list allows the operator to confirm which software is used by each of the units that can be the target of the insertion / removal work. Furthermore, from the list and the list created by the hot-swap support means 13,
The operator selects software to be started or stopped, and inputs it to the keyboard 36b to instruct the program execution management means 12 to start or stop the software. It has stop selection instructing means 14a.

Now, the procedure of the hot-swap system of the present invention in the system configured as described above will be described with reference to FIGS. 4, 5 and 6. First, the procedure of the hot-line removal method which is a part of the present invention will be described with reference to FIG. FIG. 4 is a flow chart of the hot-line removal work of the present invention. In the case of performing the hot-line removal work, first, the operator inputs that the keyboard 36b is to be removed (S401).

The data input in S401 is the MISC
Memory 22 via controller 26 and I / O controller 24
The CPU 21 which is temporarily stored in the program execution management means 12 recognizes that the removal work is to be performed, and the CPU 21 issues an I / O removal request notification requesting the operator to specify the unit to be removed. It is transmitted to the terminal device 36 via the control device 24 and the MISC control device 26. The terminal device 36 that has received the removal request notification
The removal request notification is displayed on the display device 36a (S
402). When the operator sees the request display in S402, he / she can input the unit number for designating the unit in the keyboard 36b.
(S403).

The unit number input in S403 is M
Information is temporarily stored in the memory 22 via the ISC control device 26 and the I / O control device 24, the CPU 21 judges the data, and information such as the name of software using the unit specified by the operator is provided. The information is read from the table 11 and created as list information by executing the hot-swap support means 13, and the I / O control device 24, MIS
Transmission to the terminal device 36 via the C control device 26 (S4
04). When the terminal device 36 receives the list information transmitted in S404, the display device 3 receives the list information as a list.
6ba is displayed (S405).

The worker looks at the list and determines whether the hot-line removal work can be executed (S406). When it is determined in S406 that the hot-line removal work is to be executed, the worker performs the hot-line removal work of the unit to be removed, with all the software still running (S407). After the hot-line removal work of S407 or S
When it is determined in 406 that the hot-line removal work is not executed, the operator inputs a hot-line removal work completion notification using the keyboard 36b, and the hot-line removal work completion notification is issued to the terminal device 36.
When it is temporarily stored in the memory 22 through the MISC control device 26 and the I / O control device 24 and is recognized by the CPU 21, the hot-line removal work is completed (S408).

Even if it is determined in S406 that the hot-line removal work is not to be executed, once the above-mentioned hot-line removal work is completed, the software stop work described below is executed to stop the problematic software. The hot-line removal work described above can be performed again after the line is completed. At that time, in the hot-line removal work again, it is determined in S406 that the hot-line removal work is possible. Then, if necessary, the software startup work described below can be executed to restart the stopped software. Here, the problematic software is determined by the worker based on the list displayed in S405 in the first hot-line removal work.

Next, the procedure of the hot-line insertion method which is a part of the present invention will be described with reference to FIG. FIG. 5 is a flow chart of the hot-line insertion work of the present invention. In the case of performing hot-line insertion work, first, the operator inputs that the keyboard 36b is to be inserted (S501).

The data input in S501 is the MISC
Memory 22 via controller 26 and I / O controller 24
The CPU 21 which is temporarily stored in the program execution management means 12 recognizes that the insertion work is to be performed, and the CPU 21 previously inserts the uninsertable information such as the name and number of the unit that is not insertable in advance into the information table 11.
Read from the I, and the insertion request notification that requests the operator to specify the unit not to be inserted and the unit to be inserted.
It is transmitted to the terminal device 36 via the / O control device 24 and the MISC control device 26. The terminal device 36 that has received the insertion impossibility information and the insertion request notification displays the insertion impossibility information and the insertion request notification on the display device 36a (S50).
2). Upon seeing the request in S502, the operator inputs the unit number designating the unit into the keyboard 36b, and the input unit number is the MISC control device 2.
6. It is temporarily stored in the memory 22 via the I / O control device 24 (S503).

After inputting the unit number in S503, the worker performs hot insertion of the unit to be inserted (S504). After the hot-line insertion work in S504, the operator inputs the insertion work end notification with the keyboard 36b, and the input insertion work end notification is stored in the memory 22 via the MISC controller 26 and the I / O controller 24. It is temporarily stored (S505).

The unit number temporarily stored in S505 is determined, and information such as the name of software using the unit designated by the operator is stored in the information table 1.
1 is read out and created as list information by executing the hot-swap support means 13, and the I / O control device 24, M
It is transmitted to the terminal device 36 via the ISC control device 26 (S506). Upon receiving the list information transmitted in S506, the terminal device 36 displays the list information on the display device 36a as a list (S507). The operator looks at the list and determines whether or not there is software to be launched (S508).

If it is determined in S508 that the software to be launched is present, the operator looks at the list displayed in S507 and selects the software to be launched, and the software selection data for launching the software is entered on the keyboard. 36b is input (S509). S50
When the software selection data is input in 9, the CPU 2
1 executes the start / stop selection instructing means 14b to transfer the software selection data to the MISC controller 26, I
Temporarily stored in the memory 22 via the / O controller 24,
After that, the software selection data is read and provided to the OS by the execution of the program execution management means 12, and the software selected in S509 is started up (S510).

If it is determined in S508 that the software to be launched does not exist, the operator uses the keyboard 36
In b, the startup software non-notification indicating that the software does not exist is input, and the startup software non-notification is temporarily stored in the memory 22 from the terminal device 36 via the MISC control device 26 and the I / O control device 24. When recognized by the CPU 21, the hot-line insertion work ends (S51).
1).

Next, the procedure of the software starting and stopping method will be described with reference to FIG. FIG. 6 is a flowchart of the software start-up work and stop work of the present invention. When starting or stopping the software, the operator first inputs the fact that the software is started or stopped using the keyboard 36b (S601).

The data input in S601 is the MISC
Memory 22 via controller 26 and I / O controller 24
The CPU 21 which is temporarily stored in the program management means 12 recognizes that the software startup or stop work is performed, and the CPU 21 executes all the units that can be the target of the hot-swap operation by executing the program execution management means 12. And correspondences such as names of software using them are read from the information table 11 and created as list information by executing the hot-swap support means 13, and the list information is created via the I / O control device 24 and the MISC control device 26. And transmits it to the terminal device 36 (S602).

Upon receiving the list information transmitted in S602, the terminal device 36 displays the list information on the display device 36a as a list (S603). The operator looks at the list and determines whether or not there is software for starting or stopping (S604).

When it is determined in S604 that the software for starting or stopping exists, the worker looks at the list displayed in S603 and selects the software for starting or stopping and starts the software. The software selection data for raising or stopping is input to the keyboard 36b (S605). When the software selection data is input in S605, the CPU 21
Executes the start / stop selection instructing means 14b to transfer the software selection data to the MISC controller 26, I /
The software is temporarily stored in the memory 22 via the O control device 24, and then the software selection data is read by the execution of the program execution management means 12 and provided to the OS. The software is stopped, and the software starts up or the stop work ends (S606).

When it is determined in S604 that there is no software for starting or stopping, the operator inputs a no startup software notification that the software does not exist on the keyboard 36b, and the startup software No notification is sent from the terminal device 36 to the MISC controller 2
6. When it is temporarily stored in the memory 22 via the I / O control device 24 and is recognized by the CPU 21, the hot-line insertion work ends (S607).

According to the above embodiment, by performing the software start-up and stop method before and after the hot-line removal method or the hot-line removal method, the hot-line removal work can be performed, and the hot-line insertion can be performed. By executing the method, hot-line insertion work becomes possible. The hot-swap method of the present invention is not limited to the above embodiments. That is, the worker may be informed of the positions where the uninsertable unit and the unit corresponding to the unit number input by the operator in the above embodiment should be arranged by using a light emitting diode or the like.

[0036]

As described above, according to the present invention,
The name of the software affected by the removal of the circuit board or magnetic disk device is displayed.
The worker can appropriately perform hot-line removal work. Further, since it is not necessary to stop all the running software at the time of hot-line removal work, the influence of the hot-line removal work on the system can be suppressed to a minimum. Further, since the operator can know the software that must be started up in advance when starting up the software after inserting the circuit board or the magnetic disk device, the software can be started up accurately and efficiently. You can

[Brief description of drawings]

FIG. 1 is a software configuration diagram of an information processing apparatus according to the present invention.

FIG. 2 is an example of a hardware configuration diagram of an information processing apparatus

FIG. 3 is an embodiment of a system configuration diagram according to the present invention.

FIG. 4 is a work flow chart of the hot wire removal of the present invention.

FIG. 5 is a flowchart of hot-line insertion work of the present invention.

FIG. 6 is a flowchart showing a software start / stop operation according to the present invention.

[Explanation of symbols]

11 ... Information table 12 ... Program execution management means 13 ... Hot-swap support means 14 ... Startup / stop means 21 ... Central processing unit (CPU) 22 ... Storage device (memo) 23 ... ROM 24 ... Input / output control device (I / O control device) 25 ... Small computer system interface control device (SCSI control device) 26 ... Multipurpose control device (MISC control device) ) 27 ... Hard disk drive (HDD) 28 ... Floppy disk drive (FDD) 31 ... Information processing device 32 ... Circuit board 33 ... Circuit board number 34 ... Magnetic disk device 35 ...・ Magnetic disk device number 36 ・ ・ ・ Terminal device

Claims (1)

[Claims] 1. An information processing system comprising: an information processing device in which a circuit board and a magnetic disk device are removably mounted; and a terminal device including a display device and a keyboard, which is connected to the information processing device by a line. An information table that stores the correspondence between the circuit board and the magnetic disk device and the software that uses them, a writing / reading unit that manages writing and reading of the correspondence stored in the information table, and an operator Program execution management means having start / stop execution instructing means for managing the start and stop of more selected software, and a circuit board and a magnetic field for performing hot-plugging / unplugging work read by the program execution management means. One for displaying a list of software names that use the disk device. Hot-swap support means having list information creation means for creating list information and providing the list information to the terminal device, and all circuits read by the program execution management means that can be targets of hot-swap work. List information creating means for creating list information for displaying the relationship between the board and all magnetic disk devices and the software using them as a list, and providing the list information to the terminal device, and displaying on the terminal device When the software to be started up or stopped is selected by looking at the selected list and the fact is instructed via the keyboard, a request to start up or stop the selected software is transmitted to the program execution management means. A hot-plugging / unplugging system characterized in that a start / stop means having stop selection instruction means is provided.