JPH0520109A - Diagnostic method for stand-alone type device - Google Patents

Abstract

PURPOSE:To improve the diagnostic efficiency and the diagnostic quality of the stand-alone type device. CONSTITUTION:In the stand-alone type device 25 provided with plural function units 26-27, a diagnostic function unit 28 for diagnosing the respective operating states of plural function units 26-27 by sending out and executing a diagnostic program, and a power source unit 24 for varying a power supply voltage supplied to plural function units 26-27 in accordance with a set value set by the diagnostic function unit 28, a clock 30 for informing the time which becomes a reference of diagnostic history, and a storage means 29 for recording the diagnostic history are provided. This device is constituted so that a result of execution of the diagnostic program is logged in the storage means 29 in accordance with the set power supply voltage at every plural function units 26-27, based on the time informed by the clock 30.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stand-alone type device having a plurality of functional units and having a function of diagnosing the operation of each functional unit, and more particularly to a stand-alone type device capable of improving diagnostic efficiency and diagnostic quality. The present invention relates to a method for diagnosing a device.

In a stand-alone type device composed of a plurality of functional units, each functional unit is controlled by a processor, and a function to which each functional unit is given is executed to realize a device such as a disk controller. As a cohesive function.

A diagnostic functional unit including a service processor for diagnosing the operating state of each functional unit is provided, and is configured to diagnose other functional units in which a failure has occurred.

Therefore, by instructing the execution of the diagnosis, inputting the parameter for instructing the content of the diagnosis, and using the simple maintenance device for displaying the result, instructing the diagnosis in the functional unit for diagnosis, It is possible to diagnose a stand-alone device, but it is desired that the diagnostic efficiency and diagnostic quality be good.

[0005]

2. Description of the Related Art FIG. 6 is a block diagram for explaining an example of a conventional technique, and FIG. 7 is a detailed block diagram of each functional unit.

The disk controller 3 controls the reading / writing of data from / to the disk device 4, and also controls the transfer of data to / from the channel. The disk control device 3 is composed of a plurality of functional units, and is composed of channel adapters 6 and 7, device adapters 8 and 9, a service adapter 10, a power supply device 24, and the like.

The channel adapters 6 and 7 have a structure as shown in FIG. 7A, and the processor 15 operates by reading the program stored in the control memory 16 to operate.
3, the start I / O command is received from the channel 1 or 2 and the data is transferred between the channel 1 or 2, and the common bus control circuit 14 is controlled to make the common bus 1
Data is transferred to and from another functional unit via 1.

Processors 15 of channel adapters 6 and 7
When the diagnostic program sent from the service adapter 10 to the diagnostic bus 12 and received via the diagnostic bus control circuit 17 is received, the diagnostic content instructed by this diagnostic program is executed, and the execution result is diagnosed from the diagnostic bus control circuit 17. It is sent to the service adapter 10 via the bus 12.

The device adapters 8 and 9 have a structure as shown in FIG. 7A, and the processor 15 operates by reading the program stored in the control memory 16 and sends an instruction to the disk device 4 via the interface circuit 13. The data is sent out and data is transferred to and from the disk device 4, and the common bus control circuit 14 is controlled to transfer data to and from other functional units via the common bus 11.

Processor 15 of device adapters 8 and 9
When the diagnostic program sent from the service adapter 10 to the diagnostic bus 12 and received via the diagnostic bus control circuit 17 is received, the diagnostic content instructed by this diagnostic program is executed, and the execution result is diagnosed from the diagnostic bus control circuit 17. It is sent to the service adapter 10 via the bus 12.

The service adapter 10 has a structure as shown in FIG. 7B, and the processor 20 operates by reading the program stored in the control memory 22, and controls the common bus control circuit 21 to make the common bus 11 Data is transferred to and from other functional units via the.

The service adapter 10 also reads a diagnostic program stored in the RAM 19 based on a diagnostic execution command input from the maintenance device 5 connected to the interface circuit 23 and a parameter for designating the diagnostic content, and performs the diagnostic. The bus control circuit 18 is controlled to send the corresponding diagnostic programs to the channel adapters 6 and 7 and the device adapters 8 and 9 via the diagnostic bus 12.

The maintenance device 5 is for displaying a diagnosis instruction and a diagnosis result, sends a diagnosis execution command to the service adapter 10, and then displays the execution result from the channel adapters 6 and 7 and the device adapters 8 and 9. Upon reception, the execution result is sent to the maintenance device 5 via the interface circuit 23, and the maintenance device 5
Displays this diagnostic result.

The power supply device 24 includes channel adapters 6 and 7.
, Device adapters 8 and 9, and service adapter 10
Power is supplied to each of them, but when the set value to be set in the register in the diagnostic bus control circuit 18 by the service adapter 10 is given through the diagnostic bus 12, the channel adapters 6, 7 and the device adapters corresponding to these set values. The power supply voltage supplied to 8 and 9 is changed. Also, the diagnostic bus control circuit 18
The setting values of the registers in the inside are changed by the processor 20 asynchronously with the diagnostic program.

Therefore, by setting the power supply voltage, the power supply voltage set for each diagnostic function unit
The execution result of the diagnostic program can be obtained. FIG. 8 is a flow chart for explaining the operation of FIG.

From the maintenance device 5, step
When the diagnostic execution command and parameters are sent in (1), the service adapter 10 sends a diagnostic program to each functional unit to be diagnosed in step (2).

In step (3), the service adapter 10 checks whether the sending of the diagnostic program is normally completed, and if it is normally completed, in step (4), each functional unit to be diagnosed executes the diagnosis.

Then, in step (5), after collecting the diagnostic results from each functional unit to be diagnosed, the parameters are checked in step (6), and if the diagnosis is not completed, step
Return to the process of (2), if the diagnosis is completed, step (7)
Then, the diagnostic result is sent from each functional unit to be diagnosed to the maintenance device 5.

Therefore, the maintenance device 5 displays the diagnosis result in step (8). If the diagnostic program transmission is not normally completed in step (3), the process proceeds to step (6).

[0020]

As described above, conventionally, the diagnosis execution environment, that is, the power supply voltage is set in advance, the parameter is set to the loop mode, and the long-term diagnosis is executed for a plurality of functional units to be diagnosed. I am letting you.

Then, the characteristics of the functional unit to be diagnosed with respect to the diagnostic execution environment, the relationship with its execution time, and the like are examined to obtain statistics, and the statistics are mainly used for quality control of hardware.

However, only the last diagnosis result is displayed on the maintenance device 5. Therefore, when it is desired to obtain environmental data at the time of error occurrence, it is necessary to set the parameter to a mode in which the operation is stopped when the error occurs at the time of the diagnostic command. Further, since a plurality of functional units to be diagnosed are operating at the same time, it is necessary to stop diagnosis of the other functional units to be diagnosed and use the environment change as the environment at the time of error occurrence to collect data.

In this case, it is necessary to change the parameter from the loop mode to a mode in which the diagnosis of each functional unit to be diagnosed stops when an error occurs, which causes a problem of poor diagnostic efficiency.

Further, even if the execution time of the diagnosis is measured, there is a problem that it is necessary for a person to be attached to the apparatus, it is difficult to judge the relationship between the environment and the error, and the operator's burden is heavy.

Since the maintenance device 5 is connected to the interface circuit 23 of the service adapter 10, it can be disconnected from the apparatus, and there is a problem that the diagnostic result may be lost due to this disconnection.

In view of the above problems, the present invention changes the power supply voltage inside the service adapter 10 as the diagnosis time elapses, and logs the diagnosis content corresponding to this power supply voltage to improve the diagnostic efficiency. The purpose is to improve the diagnostic quality, reduce the burden on the operator, and prevent the loss of diagnostic results.

[0027]

FIG. 1 is a block diagram for explaining the principle of the present invention. Standalone device 25
Sends a plurality of functional units 26 to 27 and a diagnostic program for execution to execute the plurality of functional units 26.
Diagnostic function unit 28 for diagnosing the respective operating states of
And a power supply device 24 that changes the power supply voltage supplied to the plurality of functional units 26 to 27 corresponding to the set value set by the diagnostic functional unit 28.

Further, a clock 30 for notifying the time as a reference of the diagnosis history and a storage means 29 for recording the diagnosis history are provided, and the storage means 29 is provided with the plurality of clocks based on the time notified by the clock 30. For each of the functional units 26 to 27, the execution result of the diagnostic program is logged corresponding to the set power supply voltage.

[0029]

With the above configuration, it is possible to log the diagnostic contents corresponding to the power supply voltage as the diagnostic time elapses. Therefore, the diagnostic efficiency and diagnostic quality are improved, and the burden on the operator is reduced. It is possible to prevent the loss of the diagnosis result.

[0030]

FIG. 2 is a block diagram of a circuit showing an embodiment of the present invention, and FIG. 3 is a detailed block diagram of a service adapter.
FIG. 4 is a diagram illustrating an example of log data.

The same reference numerals as those in FIGS. 6 and 7 denote the same functions. As shown in FIG. 3, the service adapter 31 has a program stored in the control storage 32 which is different from that shown in FIG.

That is, the processor 20 of the service adapter 31 executes the diagnostic program stored in the RAM 19 on the basis of the diagnostic execution command input from the maintenance device 5 connected to the interface circuit 23 and the parameter designating the diagnostic content. Readout and diagnostic bus control circuit 1
8 is controlled to send corresponding diagnostic programs to the channel adapters 6 and 7 and the device adapters 8 and 9 via the diagnostic bus 12.

Then, the processor 20 sets a set value in a register in the diagnostic bus control circuit 18 at regular time intervals, and sets the power supply voltage supplied from the power supply device 24 to the channel adapters 6 and 7 and the device adapters 8 and 9. Change.

When the processor 20 receives the execution results from the channel adapters 6 and 7 and the device adapters 8 and 9, the processor 20 creates log data in the RAM 19 as shown in FIG.

That is, the processor 20 stores 0 to 0 in the RAM 19.
7 bytes are used to record a log control code indicating the content of the diagnosis, and 8 to 15 bytes are used to record the time when the diagnosis is completed according to the time sent by the clock 30.

The execution environment indicating the power supply voltage is recorded from the set value set in the internal register of the diagnostic bus control circuit 18 using 16 to 19 bytes, and the diagnostic program is executed using 20 to 23 bytes. As a result, for example, a diagnosis end code indicating an error content or the like is recorded.

Then, using 24-43 bytes, a parameter at the time of a diagnostic command, for example, whether to loop, to end when an error occurs, to loop when an error occurs, a routine number and a unique number used by the routine Record data etc.

The name and version number of the functional unit to be diagnosed are recorded using 44 to 47 bytes, the version number of the diagnostic program is recorded using 48 to 51 bytes, and the diagnosis is performed using 52 to 55 bytes. The number of times of looping is recorded, and the time when diagnosis is started is recorded by the time sent by the clock 30 using 56 to 63 bytes.

Such log data is created for each functional unit each time one diagnosis is completed, and written in the log storage area of the RAM 19. In addition, when the diagnosis end code is created at the end of diagnosis, the maintenance device 5 gives an instruction
This diagnostic end code is sequentially read and sent to the maintenance device 5 via the interface circuit 23.

Therefore, the maintenance device 5 displays this diagnosis result. The log data can be read at any time by the instruction of the maintenance device 5.

FIG. 5 is a flow chart for explaining the operation of FIG. FIG. 5 is a step (9) in the flowchart of FIG.
~ (12) is added, and from the maintenance device 5 to the service adapter 31 as described above, step (1)
When the diagnostic execution command and the parameters are sent in step (5), the service adapter 31 reads the time from the clock 30 in step (9).

Then, in step (2), the service adapter 31 sends the diagnostic program to each function to be diagnosed, and in step (3), the service adapter 31 checks whether the sending of the diagnostic program is normally completed, and ends normally. If you are
In step (10), 1 is added to the loop count and the version number of the diagnostic program is read.

Then, in step (4), the service adapter 31 causes each functional unit to be diagnosed to execute diagnosis,
After collecting the diagnostic results from each functional unit to be diagnosed in (5), read the power supply voltage and time in step (11), and then in step (12).
The data read in and the diagnostic result are logged as shown in FIG.

Then, the service adapter 31 steps
In (6), the parameter at the time of the diagnostic command described in FIG. 4 is checked to see if there is a loop. If the loop is instructed by the maintenance device 5 and the diagnosis is not completed, the process of step (2) is performed. Then, the diagnostic program is sent to each functional unit to be diagnosed based on the routine number of the parameter to continue the diagnosis. If the diagnosis is completed, the diagnostic result logged in step (7) is output to the maintenance device 5
Send to.

Therefore, the maintenance device 5 displays the diagnosis result in step (8). If the diagnostic program transmission is not normally completed in step (3), the process proceeds to step (11).

[0046]

As described above, according to the present invention, since the execution result of the diagnostic program is logged corresponding to the power supply voltage, it is possible to easily know the failure characteristic by extracting the error data. The diagnostic efficiency and the diagnostic quality are improved, and the diagnostic execution time is recorded, so that it is not necessary to have a person attached to the apparatus, and the burden on the operator can be reduced.

Since the log result is recorded in the RAM, it is possible to prevent loss of the diagnostic result due to disconnection of the maintenance device.

[Brief description of drawings]

FIG. 1 is a block diagram illustrating the principle of the present invention.

FIG. 2 is a block diagram of a circuit showing an embodiment of the present invention.

FIG. 3 is a detailed block diagram of a service adapter.

FIG. 4 is a diagram illustrating an example of log data.

5 is a flowchart illustrating the operation of FIG.

FIG. 6 is a block diagram illustrating an example of a conventional technique.

FIG. 7: Detailed block diagram of each functional unit

FIG. 8 is a flowchart illustrating the operation of FIG.

[Explanation of symbols]

 1, 2 channels 3 disk controller 4 disk device 5 maintenance device 6, 7 channel adapter 8, 9 device adapter 10, 31 service adapter 11 common bus 12 diagnostic bus 13, 23 interface circuit 14, 21 common bus control circuit 15, 20 Processors 16, 22, 32 Control memory 17, 18 Diagnostic bus control circuit 19 RAM 24 Power supply 25 Stand-alone device 26, 27 Functional unit 28 Diagnostic functional unit 29 Storage means 30 Clock

Claims (1)

What is claimed is: 1. A plurality of functional units (26) to (27), and a diagnostic program is sent out to be executed so that each of the plurality of functional units (26) to (27) is executed. The diagnostic function unit (28) for diagnosing the operating state and the power supply voltage supplied to the plurality of functional units (26) to (27) are changed according to the set value set by the diagnostic function unit (28). A stand-alone device (25) including a power supply device (24) is provided with a clock (30) for notifying a time as a reference of diagnostic history and a storage means (29) for recording the diagnostic history. Means (29), based on the time notified by the clock (30), for each of the plurality of functional units (26) ~ (27), corresponding to the set power supply voltage, the execution result of the diagnostic program A method for diagnosing a stand-alone device characterized by logging.