JP2013109646A - Computer system and program starting method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform maintenance for a computer to be maintained by remote operation.SOLUTION: A system includes: a setting value storage device for storing a setting value; a first storage device; a second storage device; a processor for processing software; a computer having a controller for controlling the setting value storage device or the second storage device or the processor; and a computer for maintenance which remotely operates the computer. The controller stores the software for maintenance transmitted from the computer for maintenance in the second storage device, changes the setting value according to an instruction of setting value change transmitted from the computer for maintenance, and transfers an instruction of starting or restarting transmitted from the computer for maintenance to the processor. The processor starts a program for starting system while starting or restarting the computer by the instruction from the controller, and after that, and reads the software for maintenance from the second storage device according to the changed setting value and performs it.

Description

  The present invention relates to a computer system including a computer and a maintenance computer that manages the computer as a maintenance target, and a program activation method in the computer system.

  Computers are distributed and installed in various places around the world, especially with the spread of PC (Personal Computer) servers in society. Computers must be regularly maintained, including a PC server.

  As a technology for maintaining computers, for example, in a blade server system with a cold standby configuration that includes business blades and standby blades, when the standby blades start up while the business blades are operating, access to the network from the standby blades A technique has been proposed in which standby blade maintenance is automatically performed without restricting the cold standby configuration without disturbing the cold standby configuration (see Patent Document 1).

  In addition, as a restart method required when performing computer maintenance, for example, a boot device is searched based on BIOS (Basic Input / Output System), and the initial program load device among the found boot devices is initially searched. There has been proposed a restart test method for an information processing apparatus that executes a program stored in an access area and starts an operating system by executing the program (see Patent Document 2).

JP 2008-217225 A JP 2008-176556 A

  In the case of maintaining a PC server installed over a wide geographical area, none of the prior arts considers the maintenance of the PC server by remote operation. For this reason, when maintaining the PC server, the worker is forced to perform maintenance work at the place where the PC server is installed.

  The present invention has been made in view of the problems of the prior art, and an object of the present invention is to provide a computer system and a program activation method capable of remotely performing maintenance on a computer to be maintained. There is.

  To achieve the above object, the present invention provides a computer system including a computer that processes data and a maintenance computer that is arranged to be communicable with the computer, wherein the computer defines a processing order of software. A set value storage device for storing the set values, a first storage device for storing data processing software, a second storage device constituting a storage area for maintenance software, and a system startup at startup or restart A program for starting and transferring information to and from the processing computer for processing the data processing software or the maintenance software according to the set value and the maintenance computer, and based on the information received from the maintenance computer A controller for controlling the setting value storage device, the second storage device, or the processing device. And when the controller receives the maintenance software from the maintenance computer, the controller stores the received maintenance software in the second storage device, and the maintenance computer receives the maintenance software from the maintenance computer. When a setting value change instruction indicating that the processing order of the software for software is higher than the processing order of the data processing software is received, the setting value is changed according to the received setting value change instruction, and the maintenance When receiving a start or restart instruction from the computer, the received start or restart instruction is transferred to the processing device on condition that the maintenance software and the setting value change instruction are received. The processing device receives the start or restart instruction from the controller. In this case, the computer is started or restarted and the system start program is started, and then the changed setting value is read from the setting value storage device, and the second setting value is read according to the read setting value. The maintenance software is read from a storage device, and the read maintenance software is processed.

  According to the present invention, it is possible to perform maintenance remotely on a computer that is a maintenance target.

It is a block diagram which shows the whole structure of a computer system. It is a block diagram of a main memory. It is a block diagram of a boot priority order management table. It is a sequence diagram for demonstrating the process of a computer system. It is a sequence diagram for demonstrating the process of a computer system. It is a sequence diagram for demonstrating the process of a computer system. It is a flowchart for demonstrating the process of the computer for a maintenance. It is a flowchart for demonstrating the process of BMC. It is a flowchart for demonstrating the process of CPU chipset.

(Example)
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a configuration diagram showing the overall configuration of a computer system according to the present invention.

  In FIG. 1, the computer system includes a computer 100 that processes data, and a maintenance computer 130 that is communicable with the computer 100 and manages the computer 100 as a maintenance target. The computer 100 and the maintenance computer 130 are connected via a network 140.

  The computer 100 includes a motherboard 101, a main memory 102, a user LAN (Local Area Network) 103, and a user storage device 104, and the maintenance computer 130 is a computer for remotely operating the computer 100. For example, it is configured by a computer device having information processing resources such as a CPU (Central Processing Unit), a memory, and an input / output interface.

  On the motherboard 101 of the computer 100, a CPU chip set 105, a ROM (Read Only Memory) 106, a setting value storage device 107, a BMC (Base Management Controller) 108, and a nonvolatile memory 109 are mounted. Includes a maintenance LAN 110.

  The main memory 102 constitutes a storage area for storing various data and various programs.

  The user LAN 103 is connected to a network, for example, the Internet, and is configured as an interface that exchanges information with the Internet.

  The user storage device 104 is a first storage device that stores data processing software, for example, a user OS, a user program (user application program), user data, and the like. Configured using devices.

  The CPU chip set 105 has a function as a processor that performs overall control of the computer 100, is connected to the main memory 102 via the internal bus 111, is connected to the user LAN 103 via the internal bus 112, and is connected to the internal bus 113. Connected to the user storage device 104 via the internal bus 114, connected to the setting value storage device 107 via the internal bus 115, connected to the BMC 108 via the internal bus 115, connected to the ROM 106 via the internal bus 116, and internal bus It is connected to the non-volatile memory 109 via 117.

  The ROM 106 is configured as a system start storage device that stores a system start program. The ROM 106 stores, for example, a BIOS program and an EFI (Extensible Firmware Interface) program as system startup programs.

  The setting value storage device 107 is configured as a setting value storage device that stores a specified value that defines a processing order of software, for example, a boot priority order. The specified value that defines the boot priority is managed by, for example, a boot priority management table.

  This set value storage device 107 is connected to the BMC 108 via the internal bus 118. At this time, the setting value storage device 107 has an input / output interface (not shown) for exchanging information with the CPU chip set 105 connected to the internal bus 114, and an input / output for exchanging information with the BMC 108. An interface (not shown) is connected to the internal bus 118.

  The CPU chip set 105 operates with power supplied from a main power supply (not shown), and executes processing for starting or restarting the computer 100 by controlling on / off of the main power supply.

  The BMC 108 includes various components constituting the computer 100, such as an LSI (Large Scale Integrated Circuit) that monitors the presence / absence of normality / abnormality of the CPU chip set 105, the main memory 102, and the like. It functions as a controller that controls the set value storage device 107, the CPU chip set 105, or the non-volatile memory 109 based on information received from the maintenance computer, and an auxiliary power source (not shown) separate from the main power source )) To operate.

  The maintenance LAN 110 built in the BMC 108 is connected to the maintenance computer 130 via the network 140 and functions as an interface for exchanging information with the maintenance computer 130 via the network 140.

  At this time, when the maintenance LAN 110 receives, for example, maintenance software including a maintenance OS (Operating System) and a maintenance program from the maintenance computer 130 as maintenance information, the BMC 108 stores the received maintenance software. When writing to the nonvolatile memory 109 via the bus 119 and the maintenance LAN 110 receives a setting change instruction for changing the setting value from the maintenance computer 130, the setting value is stored in accordance with the received setting value change instruction. When the setting value stored in the apparatus 107 is changed and the maintenance LAN 110 receives a start or restart instruction from the maintenance computer 130, the CPU chip set 105 is connected to the CPU chip set 105 via the internal bus 115. Received activation or Forward reboot instructions.

  Here, the maintenance software is software for performing maintenance work on the computer 100. The maintenance OS is basic software used to perform maintenance work on the computer 100, and is software used to execute a maintenance program. The maintenance program is a program for performing maintenance work on the computer 100. Specifically, the maintenance program is a program for updating the firmware of the components constituting the computer 100 or checking the operation of the components of the computer 100 to determine whether the components of the computer 100 are normal or abnormal. Means.

  The nonvolatile memory 109 functions as a second storage device that constitutes a maintenance software storage area for storing maintenance software. At this time, in the nonvolatile memory 109, an input / output interface (not shown) for exchanging information via the CPU chip set 105 and the internal bus 117 is connected to the internal bus 117, and via the BMC 108 and the internal bus 119. An input / output interface (not shown) for exchanging information is connected to the internal bus 119.

  Next, FIG. 2 shows a configuration diagram of the main memory.

  2, the main memory 102 includes an OS management area 201, a VRAM (Video Random Access Memory) management area 202, an option device management area 203, a BIOS / EFI management area 204, and an OS management area 205. .

  In the OS management area 201, for example, a basic OS, a user application program, and the like are stored as software used by the computer 100 for normal data processing, and a maintenance OS is used as software used by the computer 100 during maintenance. In addition, a maintenance program is stored.

  In the VRAM management area 202, data constituting the display screen of the output device of the computer 100 is stored.

  The option device management area 203 stores data relating to devices connected to the user LAN 103.

  In the BIOS / EFI management area 204, for example, a BIOS program and an EFI program are stored as system start programs.

  The OS management area 205 is an extension area of the OS management area 201 and stores the same OS and program as the OS management area 201.

  Next, FIG. 3 shows a configuration diagram of the boot priority order management table.

  In FIG. 3, a boot priority management table 301 is a table stored in the setting value storage device 107, and is a table for managing setting values that define the boot priority.

  The boot priority management table 301 includes a boot device field 311 and a boot priority field 312.

  The boot device is information for specifying a device in which software used after the computer 100 is started or restarted is stored.

  The entry of the boot device field 311 stores information for specifying a device that stores software used after the computer 100 is started or restarted.

  For example, when the user software stored in the user storage device 104 is used after the computer 100 is started or restarted, “user storage device” is stored in the entry of the boot device field 311. When the maintenance software is used after the computer 100 is started or restarted, “nonvolatile memory” is stored in the entry of the boot device field 311. Further, when the computer 100 uses the software stored in the storage connected to the user LAN 103 after the computer 100 is started or restarted, “network boot” is stored in the entry of the boot device field 311.

  The boot priority is information for specifying the boot priority after the computer 100 is started or restarted. The entry of the boot priority field 312 stores “1” as the number for specifying the boot priority, when the boot priority is the highest, and when the boot priority is the middle, “1”. “2” is stored, and “3” is stored when the boot priority is lowest.

  The boot priority management table 302 is a table after the setting change for changing the setting value is performed on the boot priority management table 301.

  In this case, in the boot priority management table 302, the boot priority of the user storage device 104 is changed to “2”, the boot priority of the nonvolatile memory 109 is changed to “1”, and the boot priority of the network boot is changed. The rank has been changed to “3”.

  That is, when the setting is changed, when the computer 100 is started or restarted, first, the maintenance OS and maintenance program stored in the nonvolatile memory 109 are read, and then the user memory is stored. The user OS and user program stored in the device 104 are read.

  Next, processing of the computer system will be described with reference to the sequence diagrams of FIGS. 4A to 4C.

  This process is a process for the computer 100 to execute the maintenance program by remote operation using the maintenance computer 130.

  First, the maintenance computer 130 accesses the BMC 108 via the network 140 and starts communication with the maintenance LAN 110 via the network 140 (S11). Thereafter, the maintenance computer 130 sends a maintenance OS and a maintenance program to the BMC 108 (S12).

  In the BMC 108, the maintenance LAN 110 writes the received maintenance OS and maintenance program into the nonvolatile memory 109 (S13), and the nonvolatile memory 109 stores the maintenance OS and maintenance program in the storage area (S14).

  Next, the BMC 108 sends the result of writing to the nonvolatile memory 109 to the maintenance computer 130 (S15), and the maintenance computer 130 confirms the result of writing to the nonvolatile memory 109 (S16).

  Next, the maintenance computer 130 instructs the BMC 108 to change the setting (change the setting value) to make the boot priority of the nonvolatile memory 109 higher than the boot priority of the user storage device 104. (S17). Based on the setting change instruction, the BMC 108 records the information in the boot priority management table 301 as the setting value before the change, and instructs the setting value storage device 107 to change the setting (S18).

  The setting value storage device 107 changes the boot priority management table from the boot priority management table 301 to the boot priority management table 302 based on the setting change instruction, and sets the boot priority of the nonvolatile memory 109 to the highest priority. (S19).

  Next, the BMC 108 records the setting values before the change (information recorded in the boot priority management table 301) and the result of the setting change (information recorded in the boot priority management table 302). (S20), the maintenance computer 130 checks the setting value before the change and the result of the setting change (S21).

  Next, the maintenance computer 130 instructs the BMC 108 to start or restart the computer 100 (S22). The BMC 108 instructs the CPU chip set 105 to start or restart the computer 100 (S23). At this time, the BMC 108 instructs the computer 100 to start when the main power source of the computer 100 is off, and instructs the computer 100 to restart when the main power source is on.

  The CPU chip set 105 starts or restarts the computer 100 (S24). Thereafter, the CPU chip set 105 calls a system start program from the ROM 106 as a process at the time of starting or restarting the computer 100 (S25), and the ROM 106 stores the called system start program in the CPU chip set 105. Send (S26).

  The CPU chip set 105 expands the system start program called from the ROM 106 in the main memory 102 (S27), and executes the system start program processing (S28). At this time, the CPU chip set 105 expands the system start program stored in the ROM 106 to the main memory 102 and starts the expanded system start program. Thereafter, the CPU chip set 105 performs data transfer according to the set value in the set value storage device 107. It functions as a processing device that processes processing software or maintenance software.

  Next, the CPU chip set 105 calls the boot priority management table 302 as a setting value from the setting value storage device 107 (S29), and the setting value storage device 107 stores the information of the called boot priority management table 302. Is sent to the CPU chip set 105 (S30).

  The CPU chip set 105 takes in the information of the boot priority management table 302 as a setting value used in the system start program (S31).

  Next, the CPU chip set 105 calls the maintenance OS and the maintenance program from the nonvolatile memory 109 based on the information stored in the boot priority management table 302 (S32), and the nonvolatile memory 109 The operating OS and maintenance program are sent to the CPU chip set 105 (S33).

  The CPU chip set 105 expands the maintenance OS and maintenance program in the main memory 102 (S34), executes the maintenance OS and maintenance program processing (S35), and on condition that this processing is completed. The end of the maintenance program is notified to the BMC 108 (S36).

  The BMC 108 notifies the maintenance computer 130 of the end of the maintenance program processing (S37), and the maintenance computer 130 confirms the end of the maintenance program processing (S38).

  Next, the maintenance computer 130 sends a setting restoration instruction to the BMC 108 in order to restore the changed setting value to the original setting value (S39). In order to restore the changed setting value to the original setting value, the BMC 108 instructs the setting value storage device 107 to restore the setting (S40). The setting value storage device 107 executes a process of changing the boot priority management table from the boot priority management table 302 to the boot priority management table 301 based on the setting restoration instruction (S41).

  Thereafter, the BMC 108 sends the change result of the setting value returned to the setting value before the change to the maintenance computer 130 (S42), and the maintenance computer 130 stores the setting value returned to the setting value before the change. The change result is confirmed (S43).

  Next, the maintenance computer 130 instructs the computer 100 to end or restart (S44). The BMC 108 instructs the CPU chip set 105 to end or restart the computer 100 (S45), and the CPU chip set 105 ends or restarts the computer 100 (S46).

  Thereafter, the maintenance computer 130 instructs the BMC 108 to erase the maintenance OS and maintenance program to the BMC 108 (S47), and the BMC 108 erases the maintenance OS and maintenance program from the nonvolatile memory 108. The non-volatile memory 109 erases the maintenance OS and the maintenance program (S49).

  Thereafter, the BMC 108 sends the maintenance OS and the erase result of the maintenance program to the maintenance computer 130 (S50), and the maintenance computer 130 confirms the erase result of the maintenance OS and the maintenance program (S51). Then, the processing in this routine is terminated.

  Next, the types of maintenance computers will be described with reference to the flowchart of FIG.

  First, the maintenance computer 130 accesses the BMC 108 via the network 140, starts communication with the BMC 108 (S101), and sends a maintenance OS and a maintenance program to the BMC 108 (S102). The writing result is taken in, the writing result from the BMC 108 to the nonvolatile memory 108 is confirmed (S103), and it is determined whether or not the writing is normally completed (S104).

  The maintenance computer 130 returns to step S102 when a negative determination result is obtained in step S104, repeats the processing of steps S102 to S104, and changes the set value when a positive determination result is obtained in step S104. Therefore, the BMC 108 is instructed to change the setting (S105).

  Next, the maintenance computer 130 acquires the setting value before the change from the BMC 108 (S106), then acquires the setting value change result from the BMC 108 (S107), and based on the acquired setting value change result. It is determined whether or not the change of the set value has been completed normally (S108).

  If a negative determination result is obtained in step S108, the maintenance computer 130 returns to step S105, repeats the processing of steps S105 to S108, and if a positive determination result is obtained in step S108, the maintenance computer 130 obtains a calculation from the user. It is determined whether or not 100 activation or reactivation permission has been obtained (S109).

  When a negative determination result is obtained in step S109, the maintenance computer 130 executes processing for prompting the user to start or restart the computer 100. As a result, the computer 100 is started or restarted by the user (S110).

  On the other hand, if a positive determination result is obtained in step S109, the maintenance computer 130 instructs the BMC 108 to start or restart the computer 100 (S111), and then notifies the end of the maintenance program from the BMC 108. Is received, the content is confirmed (S112).

  Next, the maintenance computer 130 instructs the BMC 108 to restore the setting value (S113), and when receiving the restoration result of the setting value from the BMC 108, confirms the restoration result (S114) and sets the setting value. It is determined whether or not the value restoration processing has ended normally (S115).

  If the maintenance computer 130 obtains a negative determination result in step S115, it returns to step S113, repeats the processing of steps S113 to S115, and if it obtains a positive determination result in step S115, The computer 100 is instructed to end or restart (S116).

  Thereafter, the maintenance computer 130 instructs the BMC 108 to erase the maintenance program and the maintenance OS (S117), and when the erase result is received from the BMC 108, the maintenance program and the maintenance OS are erased. The result is confirmed (S118), and it is determined whether or not the erasing of the maintenance program and the maintenance OS stored in the nonvolatile memory 109 has ended normally (S119).

  If the maintenance computer 130 obtains a negative determination result in step S119, it returns to step S117, repeats the processing of steps S117 to S119, and if it obtains a positive determination result in step S119, this routine. The process in is terminated.

  Next, BMC processing will be described with reference to the flowchart of FIG.

  First, the BMC 108 determines whether or not a maintenance program and a maintenance OS are received from the maintenance computer 130 (S201). In step S201, the BMC 108 is in a standby state until the maintenance program and the maintenance OS are received. On the condition that the maintenance program and the maintenance OS are received, the maintenance program and the maintenance OS are written in the nonvolatile memory 109 (S202), and the writing result is sent to the maintenance computer 130 (S203).

  Next, the BMC 108 determines whether or not there is an instruction to change the setting value setting from the maintenance computer 130 (S204). In step S204, the BMC 108 is in a standby state until an instruction to change the setting value setting is given. On the condition that the setting value setting change instruction has been received, the setting value stored in the setting value storage device 107 is changed (S205).

  Next, the BMC 108 acquires the setting value before the change and the change result of the setting value from the setting value storage device 107, and sends the acquired setting value before the change and the change result of the setting value to the maintenance computer 130 ( Thereafter, it is determined whether there is an instruction to start or restart the computer 100 from the maintenance computer 130 (S207).

  In step S207, the BMC 108 is in a standby state until an instruction to start or restart the computer 100 is received from the maintenance computer 130, and on the condition that the instruction to start or restart the computer 100 is received, the CPU chip set Instruct to start or restart 105 (S208).

  The BMC 108 determines whether or not a maintenance program end notification has been received from the CPU chip set 105 (S209). In step S209, the BMC 108 is in a standby state until receiving a program end notification, and notifies the program end notification. On the condition that it has been received, the end of the program is sent to the maintenance computer 130 (S210).

  Next, the BMC 108 determines whether there is an instruction to restore the setting value setting from the maintenance computer 130 (S211). In step S211, the BMC 108 is in a standby state until receiving an instruction to restore the setting value setting. On the condition that the setting value setting restoration instruction has been received, the setting value storage prime 107 is instructed to restore the setting value setting (S212), and then the restoration result from the setting value storage device 107 is used for maintenance. The data is sent to the computer 130 (S213).

  Next, the BMC 108 determines whether or not an instruction to end or restart the computer 100 is received from the maintenance computer 130 (S214). In step S214, the instruction to end or restart the computer 100 is received. The CPU chip set 105 is instructed to end or restart on the condition that the computer 100 is in a standby state and receives an instruction to end or restart the computer 100 (S215).

  Next, the BMC 108 determines whether or not an instruction to delete the maintenance program and the maintenance OS has been received from the maintenance computer 130 (S216).

  In step S216, the BMC 108 is in a standby state until receiving a maintenance program and a maintenance OS deletion instruction, and is stored in the nonvolatile memory 108 on condition that the maintenance program and the maintenance OS deletion instruction are received. The maintenance program and maintenance OS that have been deleted are deleted (S217), the deletion result is sent to the maintenance computer 130 (S218), and the processing in this routine is terminated.

  Next, the processing of the CPU chip set will be described with reference to the flowchart of FIG.

  First, the CPU chip set 105 determines whether a start or restart instruction has been received from the BMC 108 or a start or restart instruction has been received from the user (S301). In step S301, The computer 100 is started or restarted on the condition that it is in a standby state until it receives a start or restart instruction from the BMC 108 or the user and receives the start or restart instruction from the BMC 108 or the user (S302). .

  Next, the CPU chip set 105 calls a system start program from the ROM 106 (S303), expands the called system start program in the main memory 102 (S303), and executes the system start program (S305).

  Next, the CPU chip set 105 calls the setting value from the setting value storage device 107 (S306), loads the called setting value as the setting value of the system start program (S307), and loads the set value, that is, Based on the setting value changed by the BMC 108, the maintenance OS and the maintenance program are called from the nonvolatile memory 109 (S308), and the called maintenance OS and the maintenance program are expanded in the main memory 102 (S309). The maintenance OS and maintenance program deployed in the main memory 102 are executed (S310), and the completion of the program is notified to the BMC 108 on condition that all the maintenance software processes have been executed (S311). Is there an instruction to exit or restart from BMC108? It determines whether or not (S312).

  Next, in step S312, the CPU chip set 105 is in a standby state until an instruction for termination or restart is received from the BMC 108. On the condition that the instruction for termination or restart is received from the BMC 108, Reactivation is executed (S313), and the processing in this routine is terminated.

  According to the present embodiment, if the maintenance OS and the maintenance program are sent from the maintenance computer 130 to the computer 100, the computer 100 automatically executes the maintenance OS and the maintenance program. The computer 100 can be maintained by operation.

  Further, according to the present embodiment, when the maintenance of the computer 100 is executed, the user OS and the user program stored in the user storage device 104 are not used, so that the risk of destroying the user's usage environment is eliminated. Can do.

  The above-described embodiments have been described in detail for easy understanding of the present invention, and are not necessarily limited to those having all the configurations described.

  Each of the above-described configurations, functions, processing devices, and the like may be realized in hardware by designing a part or all of them, for example, with an integrated circuit. Each of the above-described configurations, functions, and the like may be realized by software by interpreting and executing a program that realizes each function by the processor. Information such as programs, tables, and files for realizing each function is stored in a memory, a hard disk, a recording device such as an SSD (Solid State Drive), an IC (Integrated Circuit) card, an SD (Secure Digital) memory card, a DVD ( Digital Versatile Disc) can be recorded and placed.

  100 Computer, 101 Motherboard, 102 Main memory, 103 User LAN, 104 User storage, 105 CPU chipset, 106 ROM, 107 Setting value storage, 108 BMC, 109 Non-volatile memory, 110 Maintenance LAN, 130 For maintenance Computer, 140 network.

Claims (10)

A computer system including a computer for processing data and a maintenance computer arranged to be communicable with the computer,
The calculator is
A setting value storage device that stores setting values that define the processing order of software, a first storage device that stores data processing software, a second storage device that forms a storage area for maintenance software, and a startup time Alternatively, the system start program is started at the time of restart, and the data processing software or the maintenance software is processed according to the set value, and the information is exchanged with the maintenance computer, and the maintenance computer A controller for controlling the setting value storage device or the second storage device or the processing device based on the received information,
The controller is
When the maintenance software is received from the maintenance computer, the received maintenance software is stored in the second storage device,
When receiving from the maintenance computer an instruction to change the setting value that sets the processing order of the maintenance software to be higher than the processing order of the data processing software, the setting is performed according to the received setting value change instruction. Change the value,
When a start or restart instruction is received from the maintenance computer, the received start or restart instruction is sent to the processing device on condition that the maintenance software and the setting value change instruction are received. Forward,
The processor is
When the start or restart instruction is received from the controller, the computer is started or restarted and the system start program is started, and then the changed setting value is stored from the setting value storage device. , Reading the maintenance software from the second storage device according to the read setting value, and processing the read maintenance software. The computer system according to claim 1,
The maintenance computer is:
A computer system, wherein the maintenance software is transmitted to the controller, the setting change instruction is transmitted, and then the activation or restart instruction is transmitted. The computer system according to claim 1,
The maintenance software is
A computer system comprising a maintenance operating system and a maintenance program. The computer system according to claim 1,
The second storage device
A computer system comprising a nonvolatile memory, wherein the nonvolatile memory comprises a plurality of input / output interfaces for exchanging information with the processing device or the controller. The computer system according to claim 1,
The set value storage device includes:
A computer system comprising a plurality of input / output interfaces for exchanging information with the processing device or the controller. A computer for processing data, and a maintenance computer arranged to be communicable with the computer,
The calculator is
A setting value storage device that stores setting values that define the processing order of software, a first storage device that stores data processing software, a second storage device that forms a storage area for maintenance software, and a startup time Alternatively, the system start program is started at the time of restart, and the data processing software or the maintenance software is processed according to the set value, and the information is exchanged with the maintenance computer, and the maintenance computer A method for starting a program in a computer system comprising:
The controller is
When the maintenance software is received from the maintenance computer, the received maintenance software is stored in the second storage device;
When receiving from the maintenance computer an instruction to change the setting value that sets the processing order of the maintenance software to be higher than the processing order of the data processing software, the setting is performed according to the received setting value change instruction. Changing the value;
When a start or restart instruction is received from the maintenance computer, the received start or restart instruction is sent to the processing device on condition that the maintenance software and the setting value change instruction are received. Performing a transfer step, and
The processor is
When receiving the start or restart instruction from the controller, starting or restarting the computer, and starting the system start program;
Thereafter, reading the changed setting value from the setting value storage device;
Reading the maintenance software from the second storage device according to the read setting value;
And a step of processing the read maintenance software. The program starting method according to claim 6,
The maintenance computer is:
Transmitting the setting change instruction to the controller after transmitting the maintenance software;
Then, the step of transmitting the start or restart instruction is executed. The program starting method according to claim 6,
The maintenance software is
A program starting method comprising a maintenance operating system and a maintenance program. The program starting method according to claim 6,
The second storage device
A program start method comprising: a non-volatile memory, wherein the non-volatile memory includes a plurality of input / output interfaces for exchanging information with the processing device or the controller. The program starting method according to claim 6,
The set value storage device includes:
A program starting method comprising a plurality of input / output interfaces for exchanging information with the processing device or the controller.

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