JP4351328B2 - Information processing apparatus and system activation management method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an information processing apparatus and a system activation management method for activating and managing a system activation load module.
[0002]
[Prior art]
As a system activation management method in a conventional information processing apparatus, there is one described in JP-A-6-202923.
[0003]
FIG. 14 is a block diagram showing a configuration of a conventional information processing apparatus. The information processing apparatus 1 shown in FIG. 14 includes an external memory 10 that is removable from the system, an internal memory 20 that is mounted inside the system, a processor module 30 that performs main processing in the system, a processor module 30, and the external memory 10. It is mainly composed of a coupling medium 40 such as a bus connecting the internal memory 20.
[0004]
The internal memory 20 has a version management file 21 therein. The processor module 30 includes a CPU 50 and a main storage unit 60 inside.
[0005]
FIG. 15 is a diagram showing the internal structure of the version management file 21 in the conventional information processing apparatus. As shown in FIG. 15, the file name 22 of one object (program, data, etc.) is written in the version management file 21, and a version code 23 is attached to the file name 22.
[0006]
Next, a system activation management process procedure of a conventional information processing apparatus will be described with reference to the flowchart of FIG.
[0007]
First, in step (hereinafter referred to as “ST”) 81, the version code 23 of the object written in the version management file 21 of the internal memory 20 is read.
[0008]
Next, in ST82, the version code associated with the object recorded in the external memory 10 is compared.
[0009]
If there is a change in the comparison in ST82, it is regarded as version upgrade, and the object is transferred from the external memory 10 to the internal memory 20 in ST83.
[0010]
In ST84, loading from the internal memory 20 to the main storage unit 60 of the processor module 30 is performed.
[0011]
As described above, the system activation management method in the conventional information processing apparatus shortens the processing time when the object is changed or upgraded by attaching the version code to the file name of the object.
[0012]
[Problems to be solved by the invention]
However, with the system activation management method in the conventional information processing apparatus, only a single version of the load module can be managed in the internal memory, and when multiple versions of the load module are used interchangeably as in debugging Each time, it is necessary to read the load module from the external memory.
[0013]
This means that only a single load module can be started when the external memory is removed. In addition, since the external memory is generally accessed at a lower speed than the internal memory, it takes time to start.
[0014]
In addition, when a new version of a load module is installed in the system after the system is operated, if a failure occurs that prevents the system from operating normally, it is necessary to reload the load module that worked normally. Recovery is very time consuming and is not suitable for systems that require real-time processing such as communication control devices.
[0015]
The present invention has been made in view of the above points, and the system can be started with a plurality of versions of load modules, and the load module to be started can be easily specified even when the external memory is removed. It is an object of the present invention to provide an information processing apparatus and a system activation management method that can be used.
[0016]
[Means for Solving the Problems]
  An information processing apparatus according to the present invention includes an external storage unit that is removable from the system, an internal storage unit that is mounted in the system and stores a plurality of versions of load modules and a first management file that manages these file names, Based on the mounting state of the external storage means and the contents of the first management file, the designated load module stored in the external storage means or the internal storage means is read.pluralWith startup management meansOne start management means writes the file name of a specific designated load module and the name of the storage means in which it is stored in the second management file of the internal storage means, and indicates that the designated load module has been specified. And another start management means reads the specific designated load module according to the contents written in the second management file.Take the configuration.
[0017]
  With this configuration, the system can be started with a plurality of versions of load modules, and the load modules to be started can be easily specified even when the external storage unit is removed.Further, with this configuration, all CPUs in the multiprocessor can specify the same load module.
[0018]
Further, by checking that there is no failure in the load module after starting the load module, and then changing the priority of the version management file, it is possible to always start the system with the load module without failure.
[0019]
Furthermore, even when a failure occurs and the system becomes inoperable, another load module can be activated only by rewriting the version management file, and the system restart time is shortened.
[0020]
In the information processing apparatus of the present invention, when the external storage unit is not mounted, the activation management unit refers to the first management file in the internal storage unit and reads the load module with the highest priority as the designated load module. Take the configuration.
[0021]
With this configuration, when the external storage unit is removed, it is possible to select and activate a high-priority load module from a plurality of versions of load modules stored in the internal storage unit.
[0022]
In the information processing apparatus according to the present invention, the activation management unit adopts a configuration in which the designated load module of the internal storage unit is read when the designated load module of the external storage unit is also stored in the internal storage unit.
[0023]
In the information processing apparatus according to the present invention, the activation management unit may copy the designated load module that is not stored in the internal storage unit from the external storage unit to the internal storage unit. After copying, the designated load module is read from the internal storage means. When copying is impossible, the designated load module is read from the external storage means.
[0024]
In the information processing apparatus of the present invention, the activation management unit determines that the designated load module can be copied from the external storage unit to the internal storage unit when the free capacity of the internal storage unit is larger than the module size of the designated load module. Take the configuration.
[0025]
Further, in the information processing apparatus of the present invention, the activation management unit selects the load modules already stored in the internal storage unit in order of decreasing priority until the free capacity of the internal storage unit becomes larger than the module size of the designated load module. Use a configuration to delete.
[0026]
With these configurations, since the access to the internal storage means located in the system is faster than the access to the external storage means, the load module can be read at a higher speed.
[0029]
The information processing apparatus of the present invention includes a plurality of internal storage means and external storage means, and when one activation management means sets a system flag for a specific designated load module, other activation management means Adopts a configuration in which the specific designated load module is read in accordance with the contents written in the second file of the internal storage means belonging to the flag system.
[0030]
With this configuration, all CPUs can specify the same load module in the multiprocessor in which the external storage means and the internal storage means are duplicated.
[0031]
  The system activation management method of the present invention stores a first management file for managing a plurality of versions of load modules in an internal memory inside the system, and is based on the external memory mounting state and the contents of the first management file. Read the specified load module of the external memory or the internal memoryA system activation management method, in which one processor writes a file name of a specific load module and a storage memory name in which it is stored in a second management file in the internal memory and specifies that the load module is specified A flag is set, and another processor reads the specific load module according to the contents written in the second management file.Take the method.
[0032]
  By this method, the system can be started with a plurality of versions of load modules, and the load modules to be started can be easily specified even in a situation where the external memory is removed.Further, this method allows all CPUs in the multiprocessor to specify the same load module.
[0033]
Further, by checking that there is no failure in the load module after starting the load module, and then changing the priority of the version management file, it is possible to always start the system with the load module without failure.
[0034]
Furthermore, even when a failure occurs and the system becomes inoperable, another load module can be activated only by rewriting the version management file, and the system restart time is shortened.
[0035]
The system activation management method according to the present invention employs a method of referring to the first management file in the internal memory and reading the load module having the highest priority as the designated load module when the external memory is not mounted.
[0036]
By this method, when the external memory is removed, it is possible to select and activate a high-priority load module from a plurality of versions of load modules stored in the internal memory.
[0037]
The system activation management method according to the present invention adopts a method of reading the designated load module in the internal memory when the designated load module in the external memory is also stored in the internal memory.
[0038]
Further, the system activation management method of the present invention can copy a designated load module after copying the designated load module to the internal memory when the designated load module not stored in the internal memory can be copied from the external memory to the internal memory. When the load module is read and copying is impossible, a method of reading the designated load module from the external memory is adopted.
[0039]
By these methods, since the access to the internal memory located in the system is faster than the access to the external memory, the load module can be read at a higher speed.
[0042]
The system activation management method according to the present invention includes a plurality of internal memories and external memories. When one processor sets a flag for a specific load module, the other processor uses the flag system. The specific load module is read in accordance with the contents written in the second file in the internal memory belonging to.
[0043]
By this method, all CPUs can specify the same load module in the multiprocessor in which the external memory and the internal memory are duplicated.
[0044]
DETAILED DESCRIPTION OF THE INVENTION
The essence of the present invention is that a plurality of versions of load modules and version management files for managing them are provided in the internal memory, and the load module to be activated is specified based on the mounting state of the external memory and the contents of the version management file. It is.
[0045]
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
[0046]
(Embodiment 1)
FIG. 1 is a block diagram illustrating a configuration of the information processing apparatus according to the first embodiment. An information processing apparatus 100 shown in FIG. 1 includes an external memory 110 that is removable from the system, an internal memory 120 that is mounted inside the system, a processor module 130 that performs main processing in the system, a processor module 130, and an external memory 110. It is mainly composed of a coupling medium 140 such as a bus connecting the internal memory 120.
[0047]
The processor module 130 includes a CPU 150 and a main storage unit 160 inside. A cache may be provided between the CPU 150 and the main storage unit 160. A cache is a small-capacity high-speed semiconductor memory that assists a low-speed large-capacity core memory.
[0048]
FIG. 2 is a diagram illustrating a file image in the external memory 110 of the information processing apparatus according to the first embodiment. As shown in FIG. 2, the external memory 110 stores a load module designation file 111 written by a maintenance person and a load module 112 for starting the system. A plurality of load modules can be stored in the external memory. However, since only one load module can be specified by the user, one load module 112 is shown in FIG. 2 for simplicity of explanation.
[0049]
FIG. 3 is a diagram showing an internal structure of the load module designation file 111 of the information processing apparatus according to the first embodiment. As shown in FIG. 3, in the first line of the load module specification file 111, the identifier 116 of the load module 112, which is represented by the load module name, date, etc. and is specified by the maintenance person or system administrator, is written in a text format. It is. By making the description in the load module specification file into a simple format called an enumeration of identifiers, the maintainer can easily update the file.
[0050]
FIG. 4 is a diagram showing a file image of the internal memory 120 of the information processing apparatus according to the first embodiment. As shown in FIG. 4, the internal memory 120 stores a version management file 121 and one or more load modules 122 that are automatically written when the system is started.
[0051]
FIG. 5 is a diagram showing an internal structure of the version management file 121 of the information processing apparatus according to the first embodiment. As shown in FIG. 5, in the version management file 121, as with the load module specification file 111, identifiers 126 of the load module 122 are listed in order from the first line in a fixed number of systems, or an indefinite number, in text format. ing. The order of the identifiers represents the priority, and the version management file 121 is configured to write the identifier of the load module having a high priority at the top.
[0052]
FIG. 6 is a functional block diagram of the CPU 150 of the information processing apparatus according to the first embodiment.
[0053]
In FIG. 6, the external memory mounting determination unit 151 determines whether or not the external memory 110 is mounted in the system, and when the external memory 110 is mounted, outputs a signal to that effect to the load module specifying unit 152. If the external memory 110 is not mounted, a signal to that effect is output to the load execution unit 153.
[0054]
The load module specifying unit 152 compares the identifier 116 of the load module 112 of the load module specification file 111 with the identifier 126 of each load module 122 registered in the version management file 121, and when there is a load module with the matching identifier. , A signal to that effect is output to the load execution unit 153.
[0055]
Also, when there is no load module with the same identifier, the load module specifying unit 152 compares the module size of the specified load module of the load module specifying file 111 with the remaining capacity of the version management file 121, and stores the specified load module If writing to the memory 120 is possible, a signal to that effect is output to the load module copying unit 154, and if writing is impossible, a signal to that effect is output to the load execution unit 153.
[0056]
The load execution unit 153 writes the load module 122 of the internal memory 120 or the load module 112 of the external memory 110 into the main storage unit 160 according to the type of signal input from each unit.
[0057]
The load module copying unit 154 copies the load module 112 read from the external memory 110 to the internal memory 120 based on an instruction from the load module specifying unit 152, and adds the load module identifier to the version management file 121.
[0058]
Next, a system activation management processing procedure in the CPU 150 of the information processing apparatus according to the first embodiment will be described with reference to the flowchart of FIG.
[0059]
First, when a reset signal is input to the CPU 150, in step (hereinafter referred to as "ST") 201, the external memory mounting determination unit 151 determines whether or not the external memory 110 is mounted in the system.
[0060]
When it is determined in ST201 that the external memory 110 is not mounted, in ST202, the load execution unit 153 refers to the version management file 121 in the internal memory 120 and has the highest priority among the load modules 122 Is written in the main memory 160.
[0061]
On the other hand, when it is determined in ST201 that the external memory 110 is not mounted, in ST203, the load module specifying unit 152 causes the load module identifier 116 indicating the version written in the load module designating file 111 and the version management file. The load module identifier 126 registered in 121 is compared, and it is searched whether or not there is a load module whose identifier matches.
[0062]
In ST203, when there is no load module having the same identifier, in ST204, the load module specifying unit 152 compares the module size of the load module 112 of the external memory 110 with the remaining capacity of the internal memory 120, and the external module 110 It is determined whether or not the load module 122 of the memory 110 can be copied to the internal memory 120.
[0063]
In ST204, when the remaining capacity of the internal memory 120 is smaller than the module size of the load module 112, in ST205, the load module specifying unit 152 searches the load modules 122 of the internal memory 120 in order of decreasing priority, and searches the load modules that have been searched. It is determined whether or not it is possible to copy the load module 112 of the external memory 110.
[0064]
In ST205, if it is impossible to copy the load module 112 even if it is deleted, the load execution unit 153 writes the load module 122 of the external memory 110 to the main storage unit 160 in ST206.
[0065]
In ST205, if it is possible to copy the load module 112 if it is deleted, the load module copying unit 154 deletes the load module 122 retrieved from the version management file 121 in ST207.
[0066]
In ST204, when the remaining capacity of the internal memory 120 is larger than the module size of the load module, or after deleting the search load module in ST207, the load module copying unit 154 copies the load module from the external memory 110 to the internal memory 120. The specified load module is added to the version management file 121. This is because the load module is read at a higher speed because the access to the internal memory located in the system is faster than the access to the external memory.
[0067]
In ST203, when there is a load module with the same identifier, or after writing the load module in ST208, in ST209, the load execution unit 153 writes the load module in the internal memory 120 into the main storage unit 160. .
[0068]
In this way, by storing multiple load modules in the internal memory and updating the version control file, the system can be started with multiple versions of load modules, and even when the external memory is removed, The load module to be activated can be easily identified by the maintenance person.
[0069]
Further, by checking that there is no failure in the load module after starting the load module, and then changing the priority of the version management file, it is possible to always start the system with the load module without failure.
[0070]
Furthermore, even when a failure occurs and the system becomes inoperable, another load module can be activated only by rewriting the version management file, and the system restart time is shortened.
[0071]
(Embodiment 2)
FIG. 8 is a block diagram illustrating a configuration of the information processing apparatus according to the second embodiment. In the information processing apparatus 300 illustrated in FIG. 8, the same components as those of the information processing apparatus 100 illustrated in FIG. 1 are denoted by the same reference numerals as those in FIG.
[0072]
The information processing apparatus 300 illustrated in FIG. 8 includes an internal memory 320 having an internal configuration different from that of the information processing apparatus 100 illustrated in FIG. The information processing apparatus 300 adopts a multiprocessor configuration in which a plurality of processor modules are mounted, one of which is defined as the master processor module 130 and the other as the slave processor module 330.
[0073]
The slave processor module 330 includes a CPU 350 and a main storage unit 360 inside.
[0074]
In addition, the information processing apparatus 300 includes a flag 370 indicating that the master CPU 150 has identified the load module. The flag 370 can be read from all CPUs. The information processing apparatus 300 can also have the flag 370 in the internal memory 320 as a file.
[0075]
Further, it is assumed that the information processing apparatus 300 has a mechanism for specifying the master CPU 150, and the master CPU 150 and the slave CPU 350 are determined when the system activation management process is started.
[0076]
FIG. 9 is a diagram showing a file image of the internal memory 320 of the information processing apparatus according to the second embodiment. As shown in FIG. 9, the internal memory 320 stores a specific load module write file 323 written by the master CPU 150 in addition to the version management file 121 and the plurality of load modules 122.
[0077]
FIG. 10 is a diagram showing an internal structure of the specific load module write file 323 of the information processing apparatus according to the second embodiment. As shown in FIG. 10, in the specific load module writing file 323, a symbol 326 indicating the storage unit in which the load module specified by the master CPU 150 is stored is written in the first line in a text format. The load module identifier 327 of the loaded load module is written in the text format in the second and subsequent lines.
[0078]
After the master CPU 150 writes the specific load module write file 323, the slave CPU 350 reads the specific load module write file 323 so that all CPUs know the specific load module and the storage unit in which the specific load module is stored. Can do.
[0079]
FIG. 11 is a functional block diagram of the master CPU 150 of the information processing apparatus according to the second embodiment. In the master CPU 150 shown in FIG. 11, the same components as those in FIG. 6 are denoted by the same reference numerals as those in FIG.
[0080]
The master CPU 150 shown in FIG. 11 employs a configuration in which a load module writing unit 355 and a flag setting unit 356 are added to FIG.
[0081]
The load module writing unit 355 writes the specific load module write file 323 in the internal memory 320 as shown in FIG. 10 after the load execution unit 153 completes the writing of the load module to the main storage unit 160.
[0082]
The flag setting unit 356 sets the flag 370 after the load execution unit 153 completes writing of the load module to the main storage unit 160.
[0083]
Next, a system activation management processing procedure in the slave CPU 350 of the information processing apparatus according to the second embodiment will be described with reference to the flowchart of FIG.
[0084]
First, as a premise, the master CPU 150 executes loading according to the flowchart shown in FIG. 7, then writes the specific load module write file 323 in the internal memory 320 and sets the flag 370.
[0085]
In ST401, the slave CPU 350 waits until the flag 370 is set. When the flag 370 is set, the content of the specific load module write file 323 is read into the internal memory 320 in ST402.
[0086]
Next, in ST403, slave CPU 350 reads the specific load module from the designated storage unit according to the contents of specific load module write file 323, and writes it to main storage unit 360.
[0087]
Thus, the master CPU writes to the specific load module write file and sets the flag, so that all CPUs in the multiprocessor can specify the same load module.
[0088]
(Embodiment 3)
FIG. 13 is a block diagram illustrating a configuration of the information processing apparatus according to the third embodiment.
[0089]
Compared with the information processing apparatus 300 shown in FIG. 8, the information processing apparatus 500 shown in FIG. 13 has an external memory, an internal memory, and a flag duplicated in two systems, that is, an active system and a standby system.
[0090]
Priorities are determined in advance between the internal memories 520 of both systems. In general, the active system has a higher priority than the standby system.
[0091]
The external memory mounting determination unit 151 determines whether or not the external memory 110 is mounted on the system. If any system is mounted, a signal indicating the mounted system is sent to the load module specifying unit 152. If neither system is mounted, a signal to that effect is output to the load execution unit 153.
[0092]
When the load execution unit 153 receives a signal indicating that neither of the systems is mounted from the external memory mounting determination unit 151, the load execution unit 153 refers to the version management file 121 of the internal memory 520 of the system with the higher priority, and loads The module 122 having the highest priority is written into the main storage unit 160. In addition, when the load module 122 is not registered in the internal memory 520 of the high priority system, the load execution unit 153 performs processing for the low priority system.
[0093]
Hereinafter, the system to which the storage unit storing the specified load module belongs is referred to as a designated system.
[0094]
The load module writing unit 355 writes the specific load module write file in the specified internal memory 520 after the load execution unit 153 completes the writing of the load module to the main storage unit 160.
[0095]
The flag setting unit 356 sets the designated system flag 570 after the load execution unit 153 completes the writing of the load module to the main storage unit 160.
[0096]
When the designated system flag 570 is set, the slave CPU 350 reads the specific load module write file in the designated system internal memory 520 and reads the specific load module from the designated storage unit according to the information, and the main memory unit Write to 360.
[0097]
The other operations of the components in the information processing apparatus 500 shown in FIG. 13 are the same as those of the information processing apparatus 300 shown in FIG.
[0098]
Thus, by determining the priority of the internal memory in advance, all CPUs can specify the same load module in the multiprocessor in which the external memory and the internal memory are duplicated.
[0099]
In the third embodiment, only the external memory, the internal memory, and the flag are duplexed. However, the present invention is not limited to this, and the entire information processing apparatus can be duplexed.
[0100]
【The invention's effect】
As described above, according to the information processing apparatus and the system activation management method of the present invention, the system can be activated with a plurality of versions of load modules and can be activated even when the external memory is removed. The load module can be easily specified.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a configuration of an information processing apparatus according to a first embodiment of the present invention.
FIG. 2 is a diagram showing a file image of an external memory of the information processing apparatus according to the first embodiment
FIG. 3 is a diagram showing an internal structure of a load module designation file of the information processing apparatus according to the first embodiment
FIG. 4 is a diagram showing a file image of an internal memory of the information processing apparatus according to the first embodiment.
FIG. 5 is a diagram showing an internal structure of a version management file of the information processing apparatus according to the first embodiment
FIG. 6 is a functional block diagram of a CPU of the information processing apparatus according to the first embodiment.
FIG. 7 is a flowchart showing a system activation management processing procedure in the CPU of the information processing apparatus according to the first embodiment;
FIG. 8 is a block diagram showing a configuration of an information processing apparatus according to a second embodiment of the present invention.
FIG. 9 is a diagram showing a file image of an internal memory of the information processing apparatus according to the second embodiment.
FIG. 10 is a diagram showing an internal structure of a specific load module write file of the information processing apparatus according to the second embodiment
FIG. 11 is a functional block diagram of a master CPU of the information processing apparatus according to the second embodiment.
FIG. 12 is a flowchart showing a system activation management process procedure in the slave CPU of the information processing apparatus according to the second embodiment;
FIG. 13 is a block diagram showing a configuration of an information processing apparatus according to Embodiment 3 of the present invention;
FIG. 14 is a block diagram illustrating a configuration of a conventional information processing apparatus.
FIG. 15 is a diagram showing an internal structure of a version management file in a conventional information processing apparatus
FIG. 16 is a flowchart showing a system activation management processing procedure of a conventional information processing apparatus.
[Explanation of symbols]
100, 300, 500 Information processing apparatus
110, 510 External memory
120, 320, 520 Internal memory
121 Version control file
130, 330 processor module
150, 350 CPU
151 External memory mounting determination unit
152 Load module specific part
153 Load execution part
154 Load module copy section
160, 360 Main memory
323 Specific load module write file
355 Load module writing part
356 Flag setting part

Claims (12)

External storage means removable from the system, internal storage means mounted in the system for managing a plurality of versions of load modules, the mounting state of the external storage means, and the first management file based of the contents, and a plurality of activation management means for reading the specified load modules stored in the external storage means or the internal storage means,
One activation management means writes the file name of a specific designated load module and the name of the storage means in which it is stored in the second management file of the internal storage means, and sets a flag indicating that the designated load module has been identified. Then, the other activation management means reads the specific designated load module according to the contents written in the second management file .   2. The activation management unit according to claim 1, wherein when the external storage unit is not mounted, the activation management unit refers to the first management file in the internal storage unit and reads the load module having the highest priority as the designated load module. Information processing device.   3. The information processing apparatus according to claim 1, wherein the activation management unit reads the designated load module of the internal storage unit when the designated load module of the external storage unit is also stored in the internal storage unit. .   If the designated load module that is not stored in the internal storage means can be copied from the external storage means to the internal storage means, the activation management means copies the designated load module to the internal storage means and then designates from the internal storage means 4. An information processing apparatus according to claim 1, wherein when the load module is read and copying is impossible, the designated load module is read from the external storage means.   5. The start management means, when the free capacity of the internal storage means is larger than the module size of the designated load module, judges that the designated load module can be copied from the external storage means to the internal storage means. Information processing device.   6. The activation management unit deletes load modules already stored in the internal storage unit in descending order of priority until the free space of the internal storage unit becomes larger than the module size of the designated load module. The information processing apparatus described. In the case where a plurality of internal storage means and external storage means are provided, and one start management means sets a system flag for a specific designated load module, the other start management means is an internal storage belonging to the flag system. The information processing apparatus according to any one of claims 1 to 6, wherein the specific designated load module is read in accordance with the contents written in the second file of the means. A first management file for managing a plurality of versions of load modules is stored in an internal memory in the system, and a designated load of the external memory or the internal memory is performed based on the mounting state of the external memory and the contents of the first management file A system activation management method for loading a module ,
One processor writes the file name of a specific load module and the name of the storage memory in which it is stored in the second management file in the internal memory, and sets a flag indicating that the load module has been specified. Reading the specific load module according to the contents written in the second management file . 9. The system activation management method according to claim 8, wherein when the external memory is not mounted, the first management file in the internal memory is referred to, and the load module having the highest priority is read as the designated load module. 10. The system activation management method according to claim 8 , wherein when the designated load module of the external memory is also stored in the internal memory, the designated load module of the internal memory is read. If the specified load module that is not stored in the internal memory can be copied from the external memory to the internal memory, after copying the specified load module to the internal memory, the copied specified load module is read, and if the copy is impossible, The system activation management method according to claim 8, wherein a designated load module is read from the external memory. If multiple processors have internal memory and external memory, and one processor sets the system flag of a specific load module, the other processors are written to the second file in the internal memory belonging to the system of the flag. 12. The system activation management method according to claim 8, wherein the specific load module is read in accordance with the contents.

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