JPH06290070A - Cable misconnection detecting system - Google Patents

Abstract

PURPOSE:To detect the misconnection of a front cable at the time of connecting between packages through the front cable in addition to the connection of a rear face. CONSTITUTION:Prior to the initial diagnosis of the contents of a package which is to be executed by a service processor 10, a diagnosis control part 11 generates a diagnostic identification(ID) code, transmits the ID code and diagnostic route information to an M diagnosed package 30 and transmits the diagnostic route information to an S diagnosed package 40. The package 30 transfers the received ID code to the package 40 connected through a connector indicated by the diagnostic route information. The package 40 receives the ID code in accordance with the diagnostic route information and transmits the received ID code to the processor 10. The processor 10 collates the ID code transmitted to the package 30 with the ID code received from the package 40 by an ID code collating part 20 to detect the misconnection of the cable.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an erroneous cable connection detection method, and more particularly to an erroneous cable connection detection method for a front cable connected between packages mounted on a backboard panel inside a computer.

[0002]

2. Description of the Related Art Normally, when a computer is operated, an initial diagnosis is carried out, and after confirming that the computer normally operates, the computer is brought into a usable state. The initial diagnosis is performed by the service processor, and the diagnosis inside the package is performed. When an abnormality is detected in the initial diagnosis inside the package, the package is disabled. When the functional blocks are spread over a plurality of packages, the service processor sequentially confirms the functional confirmation of each block. If an error occurs during the function check, the service processor indicates that a failure has occurred. When the normality of all the functions can be confirmed in the initial diagnosis, it is judged to be operable, and the operation state is entered.

FIG. 5 is a diagram for explaining the operation of initial diagnosis of a service processor connected to a conventional computer system. Now, the circuit 7 of the M diagnosis package 92
2 and the circuit 73 of the S diagnosis target package 93 realize one function. Conventionally, the diagnostic control unit 94 of the service processor 91 DATs information necessary for function confirmation.
A5 is transmitted to the circuit 72 of the M diagnosis target package 92 and the circuit 73 of the S diagnosis target package 93. Circuit 7
2 and the circuit 73 confirms the function based on the information received from the diagnosis control unit 94. The service processor 91 confirms the diagnosis result for each function confirmation diagnosis, and if normal, confirms the next function. If an abnormality has occurred, the service processor 91 collects information on the abnormal state and displays on the display unit 96 via the diagnosis result display control unit 95 that the abnormality has occurred in the initial diagnosis.

[0004]

The above-mentioned initial diagnosis by the service processor is carried out to confirm the normality of the circuit, and the cable connection and the like are carried out on the assumption that the connection is made without error. There is. That is, the initial diagnosis is performed for the purpose of confirming the function of the hardware, and when the service processor detects an abnormality in the initial diagnosis, it is determined as a hardware abnormality. Therefore, if an abnormality occurs in the initial diagnosis performed by the service processor,
There is a problem that it is not possible to determine from the information and the status of the abnormal state collected by the service processor whether the hardware failure has occurred or the abnormality has been detected due to a human error such as an incorrect cable connection.

[0005]

SUMMARY OF THE INVENTION A cable erroneous connection detection method of the present invention is a service processor in which an erroneous connection of a front cable connecting packages mounted on a backboard of a computer is connected in parallel to the computer. In the incorrect cable connection detection method that is detected by
Diagnostic path storage means for receiving connection path information between a plurality of two packages connected by a front cable and storing it in a diagnostic path table; identification code generation means for generating an identification code for each diagnosis; One piece of connection path information stored in the diagnostic path table is read, and this connection path information and the identification code generated by the identification code generating means are transmitted to the first package designated by this connection path information, and this connection path information is transmitted. First identification code transmitting means for transmitting the connection path information to the second package specified by the information, and an identification code transmitted to the first package by receiving the identification code transmitted from the second package. A service processor having an identification code collating means for collating with, and an output means for outputting a result of the identification code collating means as a diagnosis result, ID code receiving means for receiving the connection path information and the ID code transmitted from the ID code transmitting means of No. 1, and when the ID code receiving means receives the connection path information and the ID code, the received ID code is used for the connection. Identification code transfer means for transmitting the identification code through the connector designated by the route information, and when the identification code receiving means receives only the connection route information, the identification code transfer means for obtaining the identification code through the connector designated by the connection route information; It is configured by a diagnostic package having second identification code transmitting means for transmitting the identification code obtained by the identification code transferring means to the service processor.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram of an embodiment of the present invention.
In order to simplify the description, the embodiment of FIG. 1 includes a portion for detecting an erroneous cable connection in an initial diagnosis of a computer system including a service processor 10, an M diagnosis package 30 and an S diagnosis package 40. Shows. The service processor 10 executes a diagnosis control unit 11 for performing a diagnosis, an input device 50 for inputting diagnostic path information including package identification information indicating a cable connection state and a package mounting position necessary for diagnosing a cable connection state, An input unit 12 for inputting diagnostic route information from the input device 50, a route information storage unit 13 that stores the diagnostic route information input via the input unit 12 as a diagnostic route table 22, and a random number used for diagnosis. An identification code generator 14 that generates an identification code, an A register 15 that temporarily stores the identification code generated by the identification code generator 14, and a B register 16 that temporarily stores diagnostic route information from the diagnostic route table 22. And the identification code stored in the A register 15 and the diagnostic path information held in the B register 16 as DATA1. Transmitted to M the diagnostic package 30 in accordance with the diagnostic path information Te, and B registers 16
An identification code transmitting unit 17 for transmitting the diagnosis path information held in S to the S package 40 to be diagnosed as DATA2;
The identification code receiving unit 18 that receives the identification code as DATA4 from the package 40 to be diagnosed, the time-out detection unit 19 for determining whether or not DATA4 is received from the S package 40 to be diagnosed within the specified time, and the A register 15 stores it. Then, the M diagnostic package 3 is transmitted via the identification code transmitting unit 17.
0, the identification code collating unit 20 for collating the identification code transmitted as DATA1 with the identification code received from the S diagnostic package 40 to the identification code receiving unit 18 as DATA4, and the identification code collating unit 20. The display device 60 is configured to display the diagnosis result collated in (1) and the diagnosis result display control unit 21 to be displayed on the display device 60.

The M diagnostic package 30 receives the diagnostic code information and the identification code as DATA 1 from the identification code transmitting section 17 of the service processor 10 and the identification code receiving section 3
1, a C register 33 that stores the diagnostic route information received by the identification code receiving unit 31, a D register 34 that stores the identification code received by the identification code receiving unit 31, and an identification code S
An identification code transfer unit 35 for transferring to the diagnostic package 40, and an identification code transmission for transmitting the received identification code to the service processor 10 as DATA4 when receiving the identification code as DATA3 from the S diagnostic package 40. And a part 32.

The S diagnostic package 40 stores an identification code receiving section 41 for receiving diagnostic path information as DATA2 from the identification code transmitting section 17 of the service processor 10 and a diagnostic path information received by the identification code receiving section 41 C The register 43, the identification code transfer unit 45 that receives the identification code transferred as DATA3 from the M diagnosis package 30, and the D register 44 that stores the identification code received by the identification code transfer unit 45 have been transferred. The identification code is DA
It is composed of an identification code transmission unit 42 for transferring it to the service processor 10 as TA4.

FIG. 2 is a diagram showing details of the identification code transfer section 35 of the M diagnosis package 30. Identification code transfer unit 35
Represents the identification code in DATA1 received from the service processor 10 via the identification code receiving section 31 in the D register 3
4, and the S diagnostic package 40 to DATA
Selector circuit 80 for switching the input of the D register 34 to store the identification code transferred as 3 in the register D34, the gate control circuit 81 for controlling the output of the D register 34 to the connector 36, and the D register 34. It is composed of a transfer circuit 82 for transmitting the identification code held in 1 to the S diagnostic package 40, and a gate circuit 83 controlled by the gate control circuit 81.

FIG. 3 shows the M diagnostic package 30 shown in FIG.
It is a figure which shows the example of the signal between S and S diagnostic package 40. In this example, the data signal 3 between the circuits of the package
It is composed of a book, two control signals, a diagnostic signal (DATA3) used for diagnosing an incorrect cable connection, and a GND serving as a reference for discriminating the signal. The diagnostic signal is used only in the initial diagnosis, and is used as a normal signal line after the initial diagnosis is completed.

FIG. 4 is a diagram showing an example of the contents of the diagnostic route table 22, which comprises, as diagnostic route information, source information, destination information, and diagnostic result information that are information necessary for making a diagnosis. Further, the transmission source information and the reception destination information include information for displaying the connector information in which the abnormality is detected on the display device 60 when the abnormality is detected by the diagnosis. As the transmission source information, mounting position information that is an address for identifying the M diagnostic package 30, identification name information that is a package name of the M diagnostic package 30, and a connector to be diagnosed in the M diagnostic package 30 are identified. It stores the connector number and As the receiver information, mounting position information that is an address for identifying the S diagnostic package 40, identification name information that is a package name of the S diagnostic package 40, and a connector to be diagnosed in the S diagnostic package 40 are included. It stores the connector number for identification.

Next, the operation of the embodiment shown in FIG. 1 will be described. In the description, the case where the service processor 10 diagnoses the incorrect cable connection using the diagnostic code from the M diagnostic package 30 to the S diagnostic package 40 is described.
The basic operation is the same when the diagnosis is performed using the diagnostic code via the package to be diagnosed 30. First, the diagnostic route information as shown in FIG. 4 is registered in the diagnostic route storage unit 13 as the diagnostic route table 22 from the input device 50 connected to the service processor 10 in advance via the input unit 12 in the service processor 10. Keep it.

The diagnostic control unit 11 causes the identification code generator 14 to generate a control signal SI so as to generate a random diagnostic identification code.
Instruct by G1. The identification code generator 14 controls the control signal S
An identification code for diagnosis is generated by the reception of IG1. The identification code generated by the identification code generator 14 is sent to the A register 15 and stored during the diagnosis. That is, in the A register 15, the stored identification code is transmitted to the M package 30 to be diagnosed through the identification code transmitting section 17, and the identification code received by the identification code receiving section 18 is used as original data when the identification code collating section 20 collates. Therefore, it is held until the diagnosis of the corresponding connector is completed. Further, the diagnostic control unit 11 reads the diagnostic route information from the diagnostic route table 22 and stores it in the B register 16. The diagnostic path information of the B register 16 is the information for transmitting to the M diagnostic package 30 together with the identification code as DATA1, and the identification code transmitting unit 17 as DATA2 which is the diagnostic information for the S diagnostic package 40 to receive DATA3. Used to send through. The diagnostic control unit 11 then controls the control signal S
The IG2 causes the diagnostic route information held in the B register 16 to be transmitted to the S-diagnostic package 40 designated by the receiving source information of the diagnostic route information, and the control signal SIG is transmitted.
Instructing to transmit the identification code held in the A register 15 and the diagnostic route information held in the B register 16 to the M diagnosis package 30 designated by the transmission source information of the diagnostic route information in 3. To do.

The identification code transmission section 17 controls the control signal SIG2.
When receiving the diagnostic route information, the diagnostic route information held in the B register 16 is specified by the destination information in the diagnostic route information.
When transmitted as DATA2 to the package 40 to be diagnosed and receiving the control signal SIG3, the identification code held in the A register 15 and the diagnostic path information held in the B register 16 are held in the B register 16 as DATA1. M indicated in the source information in the diagnostic route information
It is transmitted to the package to be diagnosed 30. Here, the identification code transmitting unit 17 determines whether DATA1 and DATA2 have been normally transmitted to the M diagnostic package 30 and the S diagnostic package 40. When the diagnostic path information and the transmission identification code cannot be normally transmitted to the M-diagnosis package 30 and the S-diagnosis package 40, the abnormality is reported to the diagnosis control unit 11 by the control signal SIG4. When the diagnostic control unit 11 receives the SIG4 signal, it recognizes that there is an abnormality in the transmission to the M diagnostic package 30 or the S diagnostic package 40. In this embodiment, when the diagnosis control unit 11 detects an abnormality in the diagnosis result information of the diagnosis route table 22 shown in FIG. 4 during transmission to the M diagnosis package 30, that is, the identification code transmission unit 17 for the control signal SIG3. When there is an error report from the SIG4 signal from "ERR1", on the other hand, when an error is detected during transmission to the S diagnostic package 40, that is, from the identification code transmitting section 17 to the control signal SIG2, the SIG4 signal If an error is reported, "ERR2" is recorded.

In the S package to be diagnosed 40, the identification code receiving section 41 determines from the diagnostic path information received by DATA2,
The connector number of the reception source information indicating the route received by the own package is stored in the C register 43. And S
The package to be diagnosed 40 waits for the identification code to be transferred as DATA3 from the instructed connector 46 according to the connector number of the diagnostic route information stored in the C register 43.

In the M package to be diagnosed 30, the identification code receiving section 31 receives the identification code and the diagnostic route information as DATA1. The identification code receiving unit 31 stores, in the C register 33, the connector number of the transmission source information indicating the route transmitted by the own package from the received diagnostic route information. Further, the identification code receiving unit 31 receives the received identification code from the D register 3
Store in 4. M diagnosis package 30 is C register 3
When the connector number of the diagnostic path information is stored in 3 and the transmission identification code is stored in the D register 34, the connector 36 indicated by the connector number stored in the C register 33 is transferred to the connector 36 via the identification code transfer unit 35. S Package to be diagnosed 40 D
The identification code is transferred as ATA3.

The diagnostic control unit 11 includes an S diagnostic package 4
After transmitting the diagnostic route information as DATA2 to 0, the diagnostic route information and the identification code are transmitted as DATA1 to the M diagnostic package 30, so that the M diagnostic package 30 transmits the identification code via the identification code transfer unit 35. At the time of transfer to the S-diagnosis package 40 by the S-diagnosis package 40, the S-diagnosis package 40 transmits the transferred identification code to the identification code transfer unit 45.
It is ready to receive via. The S diagnostic package 40 stores the identification code received as DATA3 from the M diagnostic package 30 via the identification code transfer unit 45 in the D register 44. In the S diagnostic package 40, when the identification code is received by the D register 44, the identification code DATA is transmitted via the identification code transmission unit 42.
4 to the service processor 10.

Now, the operation of the identification code transfer section 35 in the M diagnosis package 30 will be described with reference to FIG. The identification code transfer unit 35 in the M diagnosis package 30 and the identification code transfer unit 45 in the S diagnosis package 40 perform the same operation. First, the identification code transmitting unit 17 in the service processor 10 outputs the data, and the identification code receiving unit 31 outputs DATA.
The diagnostic route information received as 1 is stored in the C register 33. The gate control circuit 81 receives the identification code received from the identification code transmission section 17 in the service processor 10 when the address information of the transmission source information in the diagnostic route information stored in the C register 33 and the address of the own package match. Need to be transmitted to the S diagnostic package 40, the input of the selector circuit 80 is switched to the identification code receiving section 31 so as to input the identification code to the D register 34 in SIG8. Then, the SIG 9 instructs the gate circuit 83 to transmit the identification code held in the D register 34 to the S diagnostic package 40, and the transfer circuit 82 receives the SIG signal.
Instruct A to start transmission. If the address information of the transmission source information and the address of the self package in the diagnostic route information stored in the C register 33 do not match, the gate control circuit 81 receives the identification code from the S diagnostic package 40 by DATA3. SIG
8 switches the input of the D register 34 to the connector 36, and the output of the D register 34 is the S diagnostic package 4
The SIG9 instructs the gater circuit 83 not to output 0. Then, from the S diagnosis package 40 to DA
When the identification code is received as TA3, the received identification code is sent to the service processor 1 via the identification code transmission unit 32.
Send to 0.

Returning to the explanation of FIG. 1 again, when the identification code receiving section 18 in the service processor 10 receives the identification code as DATA4 from the S diagnostic package 40, the diagnostic control section 11 receives a control signal to receive the identification code. Report by SIG5. The diagnostic control unit 11 sends the identification code sent as DATA1 to the M package under diagnosis 30 to the A register 1
5, the identification code collating section 20 stores the identification code and the identification code receiving section 18 stored in the A register 15.
The received identification code is collated with and the confirmation is made. The diagnosis control unit 11 knows the collation result of the identification code by the control signal SIG7, judges whether the diagnosis is normally completed, and stores the result in the diagnosis result information of the diagnosis route table 22 shown in FIG. On the other hand, the time-out detection unit 19 activates the time-out monitoring timer when the identification code transmission unit 17 normally completes the transmission of the identification code as DATA1 to the M diagnostic package 30. Then, when DATA4 is received by the identification code receiving unit 18 from the S diagnostic package 40, the identification code receiving unit 18
The control signal SIG5 is output from the control signal SIG5 and the control signal SIG5 is received by the timeout control unit 19 at the same time as the control signal SIG5 is received by the diagnostic control unit 11. Upon receiving the control signal SIG5, the timeout detection unit 19 stops the timeout monitoring timer. Therefore, if the cable is erroneously connected, the identification code transferred from the M diagnosis package 30 will not be received by the S diagnosis package 40, and the timeout detection unit 1 in the service processor 10 will be described.
9, a timeout occurs, and the timeout detector 19 outputs the control signal SIG6 to the diagnosis controller 11. When the diagnostic control unit 11 receives the control signal SIG6, it recognizes that the cable is not connected according to the diagnostic route information. If the identification code collation unit 20 causes a collation mismatch, it is recognized as a failure of the diagnostic circuit of the package to be diagnosed.

The diagnostic control unit 11 performs the above-mentioned diagnosis on all the diagnostic routes registered in the diagnostic route table 22, and displays the result on the display device 60 via the diagnostic result display control unit 21.

[0022]

As described above, according to the present invention, the cable connection state can be diagnosed before the conventional function test performed by the service processor, so that an erroneous cable connection can be quickly detected. Has the effect.

[Brief description of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention.

FIG. 2 is a block diagram of an identification code transfer unit of the embodiment of FIG.

FIG. 3 is a diagram showing an example of signals between an M diagnosis package and an S diagnosis package in the embodiment of FIG.

FIG. 4 is a diagram showing an example of contents of a diagnostic route table of the embodiment of FIG.

FIG. 5 is a diagram for explaining an operation of initial diagnosis by a conventional service processor.

[Explanation of symbols]

 10, 91 Service processor 11, 94 Diagnostic control unit 12 Input unit 13 Diagnostic path storage unit 14 Identification code generation unit 15 A register 16 B register 17, 32, 42 Identification code transmission unit 18, 31, 41 Identification code reception unit 19 Timeout Detecting unit 20 Identification code collating unit 20,95 Diagnostic result display control unit 22 Diagnostic route table 30 M Diagnostic package 33,43 C register 34,44 D register 35,45 Identification code transfer unit 36,46 Connector 40 S Diagnostic package 50 input device 60, 96 display device

Claims (1)

[Claims] 1. A cable erroneous connection detection method in which an erroneous connection of a front cable connecting packages mounted on a backboard of a computer is detected by a service processor connected in parallel to the computer. Diagnostic path storage means for receiving input of connection path information between the plurality of two packages and storing it in the diagnostic path table, identification code generating means for generating an identification code for each diagnosis, and the diagnostic path table One of the stored connection path information is read, and the connection path information and the identification code generated by the identification code generating means are transmitted to the first package specified by the connection path information, and the connection path information specifies the connection path information. First identification code transmitting means for transmitting the connection path information to the second package, and the second package. A service processor having identification code collating means for receiving the identification code transmitted from the cage and collating it with the identification code transmitted to the first package, and output means for outputting the result of the identification code collating means as a diagnostic result. And an identification code receiving means for receiving the connection route information and the identification code transmitted from the first identification code transmitting means, and an identification received when the identification code receiving means receives the connection route information and the identification code. A code is transferred through a connector designated by the connection path information, and when the identification code receiving means receives only the connection path information, an identification code is transferred through the connector designated by the connection path information. And a second identification code transmitting means for transmitting the identification code obtained by the identification code transferring means to the service processor. Incorrect cable connection detection method characterized by comprising the over-di.