JPS595928B2 - Diagnostic program loading processing method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a diagnostic program loading processing method, and particularly, when loading a diagnostic program from a service processor to a plurality of channel processors, an instruction is provided at the time of a load request from a channel processor. Based on the diagnostic program module identification information and the channel type of the channel processor,
The present invention relates to a diagnostic program loading processing method that is configured to determine a diagnostic program to be transferred and reduces the number of floppy disks, for example, on which diagnostic programs are stored.

Recently, with the advancement of intelligence in data processing system components, channel processors as shown in FIG. 1 have come to be used.

In FIG. 1, 1 is a central processing unit, 2 is a main storage device, 3 is a storage device control device, 4-0 and 4-1 are inch credit file processors, 5 is a magnetic tape control processor, 6 is a multiplexer channel,
T-O, 7-1, . . . are magnetic disk memories, 8-0 and 8-1 are magnetic tapes, 9 is a card reader, 10 is a line printer, and 11 is a magnetic disk memory. A data bus, 12 a service processor, and 13 a service processor interface bus (SVP interface bus). In the system shown in FIG. 1, as is conventionally known, the central processing unit 1 issues a startup command to each channel processor 4-0, 4-1, 5, and 6, and each channel processor performs input/output control. is supposed to be in charge of

The service processor 12 then connects each channel processor 4-0 via the SVP interface bus 13.
, 4-1, 5, and 6, signals and data can be directly transferred to them. In such a system, when one of the channel processors issues a request to the service processor 12 to load a diagnostic program for maintenance or diagnosis, the service processor 12 loads the specified diagnostic program into the channel.・Transfer to processor.

However, the diagnostic program module identification information that specifies the above diagnostic program! Despite the increasing number of ζ channel processors, they have traditionally been given as one byte of information. For this reason, the floppy disk (which stores diagnostic programs in the form of modules) connected to the service processor 12 can only store a maximum of 256 modules of diagnostic programs per floppy disk. The problem with a large number of program modules is that even if there is room for storage on one floppy disk, additional floppy disk media must be used. The present invention aims to solve the above problems, and the diagnostic program loading processing method of the present invention includes a plurality of stored program data processing devices including a channel processor, and
A service processor connected to the plurality of data processing devices, and a disk file that stores diagnostic programs for the respective data processing devices in modules and has an index file that collectively represents the addresses of each module, The service processor performs data processing in which the service processor refers to the index file and transfers a predetermined diagnostic program to the data processing device based on the diagnostic program remote identification information instructed when a diagnostic program load request is made from the data processing device. In the system, the address of each module in the index file is classified into a module group for each channel type of the data processing device, and the service processor classifies the index file according to the channel type of the data processing device that issued the load request. , access the specified module by referring to the index file based on the module identification information specified at the time of the load request, and transfer the diagnostic program to the data processing device that issued the load request. It is characterized by what it did.

This will be explained below with reference to the drawings. FIG. 2 is an explanatory diagram illustrating a conventional loading process of a diagnostic program, FIG. 3 is an explanatory diagram illustrating a processing aspect of a loading process method of a diagnostic program according to an embodiment of the present invention, and FIG. 4 is a main part of the present invention. The configuration of one embodiment is shown.

In FIG. 2, 4-0 and 12 correspond to those in FIG. 1, and for example, channel processor 4-0 specifies a diagnostic program by module ID (1 byte) and receives the loading of the diagnostic program. represents the case.

The service processor 12 is located on a floppy disk (
Up to 256 modules (up to 256 modules) of diagnostic programs can be stored on one floppy disk on modules 14, 15, 16,
The addresses of each micro module on the floppy disk are stored together on one floppy disk. An index file 23 is prepared.

Now the channel processor 4-0 has a module ID, for example.
Assume that a load request is issued specifying AO (~20 in FIG. 2) as (sometimes abbreviated as MiD). In response to this, the service processor 12 reads the index file 23 from the floppy disk and assigns module "20" based on the module ID (specifying module AO) from the channel processor 4-0. Check the existing address, read the contents of the desired module "20" and send it to the channel processor 4.
Transfer to -0. Of course, the channel processor 4-0 performs diagnosis based on the diagnosis program. In the case of the conventional method, as mentioned above, the module ID is 1.
Because the index file 23 is indexed based on the module ID, the maximum number of diagnostic program modules that can be held on one floppy disk is 256. It's limited.

If the number of diagnostic program modules required is larger than that, other floppy disks will be used even if there is sufficient storage capacity on the floppy disk. In other words, it is necessary to relocate the floppy disk and extract the diagnostic program. The present invention solves the above points, and the third
The figure shows an explanatory diagram illustrating a processing aspect of a loading processing method of a diagnostic program according to an embodiment of the present invention.
Reference numerals 12 and 23 in the figure correspond to those in FIG. 2, and 24,
25, 26, 27, 28, ...... are diagnostic programs prepared for channel processors, respectively.
It represents a module group. In the case of the present invention, the diagnostic program module is divided and defined as groups 24, 25, etc. corresponding to each channel processor, and which module in each group belongs to is determined by the above-mentioned 1. It is specified by the module ID of bytes.

The channel processor that issued the load request then
Identified by the channel type of the channel processor. Channel type is IFPMT'P.
It shows the differences in the models and functions of channel processors such as MXC. For this purpose, the diagnostic program module stored on the floppy disk is a so-called channel processor (channel processor and module I).
It has a shape that can be identified by D and one floppy disk.
It becomes possible to remove the limitation that the maximum number of modules that can be specified by the disk index file is 256. That is, for example, as shown in FIG. 3, modules 29, 30, . . .
. . . , 31 . . . are prepared, and modules 32 and 33 are prepared corresponding to channel processor B.
,......,34,35,36,...
..., 37...... are prepared, and modules 38, 39,... are prepared corresponding to the channel processor C.
・・・・・・・・・、40、41、42、・・・・・・・・・
・, 43, ......... are prepared.

Then, index files are prepared corresponding to each module. 1) In this state, if channel processor B issues a load request specifying A1 (~36 in FIG. 3) as the module ID, then service processor 12 issues index. The file 23 is read and the channel processor (channel type) that issued the load request is checked.

In the case of the above setting example, the illustrated route a will be taken, and M
After searching for the iDAl address, the module 36 is read and transferred to the channel processor B. FIG. 4 shows the configuration of an embodiment of the main part of the present invention.

The numbers 4-0, 12, and 13 in the figure correspond to those in Figure 1, and 4-4
is a processor section in the channel processor, 45 is a control memory, 46 is a local memory, 47 is a calculation section, 48
Reference numeral 49 indicates an SVP interface control unit in the channel processor, 49 indicates a channel type setting unit, in which channel type setting is performed by a so-called shortcut, and 50 indicates a module ID setting register, which is a diagnostic program.・The module ID is set at the time of a load request, 51 is a front end section, 52 is an interface control section for adapters and devices, 53 is an interface control section for channels and processors, 5
Reference numeral 4 denotes a panel section within the service processor, 55 an SVP interface control section within the service processor, and 56 a channel type reading/discrimination circuit for determining the channel type of the channel processor that has issued a load request. , 57 is a module ID reading/discrimination circuit which discriminates the module ID given in response to a load request, 58 is a console processor, 59 is a floppy disk control circuit, and 60 is a floppy disk. The above-mentioned index file 23 and module groups 24, 25, 26, 27, 28, . . .
... is stored, 61 is a display, 62
63 represents a keyboard, and 63 represents an internal bus. In the channel processor 4-0, the channel type is set in the setting section 49.

The channel processor 4-0 then runs the diagnostic program.
The module ID is set in the register 50 at the time of a load request. This causes the service processor 12 to
In the P interface control unit 55, the channel type and module ID are determined. As explained with reference to FIG. 3, the service processor 12 reads the index file 23 from the floppy disk 60.
is read, the address where the desired module is stored is indexed, and the contents of the module are read from the floppy disk 60 and sent to the channel processor 4-0.
The data is transferred to the control memory (CS) 45 of the controller. As explained above, according to the present invention, a diagnostic program/module group is defined corresponding to a data processing device, and then determined based on the module ID.

Therefore, there is no limit to the number of modules that can be stored on one floppy disk, for example, and it becomes possible to store up to the range allowed by the storage capacity of the floppy disk.

[Brief explanation of drawings]

FIG. 1 is an example of a data processing system to which the present invention is applied, FIG. 2 is an explanatory diagram illustrating a conventional diagnostic program loading process, and FIG. 3 is an example of a diagnostic program loading process method according to an embodiment of the present invention. FIG. 4, an explanatory diagram for explaining the processing mode, shows the configuration of an embodiment of the main part of the present invention. In the figure, 1 is the central processing unit, 2 is the main storage device, 3 is the storage device control device, and 4-0, 4-1, 5, and 6 are the channels.
Processor, 12 is a service processor, 23 is an index file, 24, 25, ..., 28,
. . . is a group of diagnostic program modules prepared for each channel processor, 29, 3.
0, . . . 43, . SVP interface control unit of
55 represents an SVP interface control section within the service processor, and 60 represents a floppy disk.

Claims (1)

[Claims] 1. A service processor comprising a plurality of stored program data processing devices including a channel processor and coupled to the plurality of data processing devices;
A disk that stores diagnostic programs for each data processing device in modules and has an index file that collectively represents the addresses of each module.
The service processor refers to the index file using module identification information and transfers a predetermined diagnostic program to the data processing device, which is instructed when a diagnostic program load request is made from the data processing device. In data processing systems,
The address of each module in the index file is classified into a module group for each channel type of the data processing device, and the service processor determines the module group in the index file based on the channel type of the data processing device that issued the load request. ,
A diagnostic program that refers to an index file based on module identification information specified at the time of the load request, accesses a predetermined module, and transfers the diagnostic program to the data processing device that issued the load request. loading processing method.