JPS58121459A - Service processor of electronic computer - Google Patents

Abstract

PURPOSE:To make easier the processing at the time when control information other than that in external storage devices is required, by making control information in a service processor storage device easily changeable and reorganizable by the operation of a console operating device. CONSTITUTION:An operator operates a console operating device 5 and indicates a readout to a service processor controlling mechanism 13 by giving the address number of desired diagnosis controlling information to an external storage device controlling mechanism 14. Upon reception of the indication, the external storage device controlling mechanism 14 starts the readout from an external storage device 4. The mechanism 14 transfers a signal sent from the external storage device 4 through a path (h) to a service processor storage device 3 through a path (f), and the signal is stored in the service processor storage device 3. When the storage of the signal is terminated, the controlling mechanism 14 indicates stoppage of the storage device 4, and informs the service processor controlling mechanism 13 of the completion of the readout of the diagnosis controlling information.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a service processor for an electronic computer, and more particularly to a central processing unit of a car emblem computer that is connected to each processing device constituting the computer via a diagnostic control bus and performs diagnostic control processing of each of the processing devices. It concerns a service processor that runs independently.

A conventional device of this type is shown in FIG. In FIG. 1, (1) generally indicates a service processor, and the service processor 111 includes a service processor control mechanism (21), a service processor storage device (3),
It consists of an external storage device (4), a console operating device (5), and a printing device (6). Also, +71 in Figure 1
, 181 , +91 , [MI, [1υ is each processing unit that constitutes the electronic computer, (7) is the system control processing unit, 181Fi arithmetic processing unit, (9) is the main storage device, (il is the input/output A processing device 111) is an F1 input/output control device, and each of these processing devices is a processing device to which a diagnostic service is provided by a service processor +1).

Each processing device has a device address determined in advance, and the number shown as PA= in FIG. 1 is the processor address of the device.

1 Furthermore, in FIG. 1, (a) is a diagnostic control bus, (b) is a main storage memory bus, (C) is an interface bus, (d) is a console operating device line, (
e) is a printing device line, (f) is a service processor memory bus, and Q) is an input/output bus.

FIG. 2 is a diagram showing the types of signals on the diagnostic control bus (1), and SvP in FIG.
shows. In addition, Figure 3 shows a data arrangement diagram, and Figure 3 (
3(a) shows the arrangement in the service processor storage device (3), and FIG. 3(b) shows the arrangement on the diagnostic control bus (a).

The console operating device [+51] is equipped with keys operated by an operator and a display device for displaying information to the operator.

The operator operates the console operating device (5) and gives an instruction to the service processor control mechanism (2) to input target diagnostic information into the service processor storage device (3) through the line. 2) uses the external storage device (41) according to the given instructions.
Read the desired diagnostic information from the interface bus (C)
and the service processor memory bus (f) to store the data in the service processor storage device (31).
As shown in Figure (5k), it is evening. However, in FIG. 3(a), the memory address is shown in hexadecimal notation, and one word consists of 8 bits (bits numbered 0 to 7).

When the input of diagnostic information to the service processor storage device (3) is completed, the service processor control mechanism (2) transfers the service processor storage device ( Send out the contents of 3) in sequence. On the diagnostic control bus (a), the signal is sent as one word (16 bits). Hands! 11 is the 31st egg)
The contents of memory address (4000)□6 are read out and set to the processor address line of the diagnostic control bus (IL), and at the same time a signal SP (see FIG. 2) is sent out. In the example shown in FIG. 3(b), PA-0001 (binary representation) is sent, and therefore the arithmetic processing unit (8) is designated. The arithmetic processing unit (8) detects the contents of the processor address 2 on the diagnostic control bus (a), recognizes that there are many addresses of its own, changes to the diagnostic mode, and outputs the signal SA.
(See Figure 2). Service processor control mechanism (2) Upon reception of the outgoing signal SA, it is notified that step 1 has ended, and the process is transferred to step 2, where it reads the contents of address 16 (4001) and then reads the contents of address 1 (4002) l. These 16 bits are sent out onto the data field as shown in Step 2 of M3 (b), and at the same time the signal SD (see FIG. 2) is sent out. Upon receiving the signal SD, the arithmetic processing unit (8) inputs the 16-bit function data on the data field and returns the signal DAC (see FIG. 2). Using this signal DAC, the service processor control mechanism (2) operates at addresses (4003)□6 and (4004).
.

The arithmetic processing unit (8) inputs 16 bits on the data field, and when it is finished, it reports the completion of the input using the signal DAC.

Similarly (4005) and (4006), the transfer data 2 based on the contents of each address is taken into the arithmetic processing unit (8). When step 4 shown in FIG. 3(b) is thus completed, the arithmetic processing unit (8) enters the diagnostic processing control operation.

That is, it decodes the 7 action data sent in step 2, enables the processing control function section instructed by the subfunction, and performs control processing using transfer data 1 (see Figure 3 (b)). Execute. The results obtained by this control process are sent back to the service processor control mechanism (2) according to the following procedure.

That is, first, after detecting that the signal TM is in the receive mode and that the service processor (1) is in the state of receiving or receiving data, it sets its own processor address (0001 in the above example) to the processor address line. , and transmits a signal PDR (see FIG. 2) with the data of the processing result obtained by executing processing control using the transfer data 1 placed in the data field.

The service processor control mechanism (2) receives the signal PDR, confirms that the processor address is r 0001 J, executes the diagnostic control information, learns that the 9th processing device is the specified processing device, and then sends the data. The upper 8 bits of the field are (400B)1. The lower 8 bits of the address are stored in address (400C) 1611, and the completion of data reception is notified to the arithmetic processing unit (8) using the signal DAC. When the arithmetic processing unit (8) receives the signal DAC, it executes processing control using the transfer data 2, puts the obtained result in the data field, and sends out the signal PDR. Upon receiving the signal PDH, the service processor control mechanism (2) stores the upper 8 bits of the shift field at address (400D)□6 and the lower 8 bits at address (400E) ls, and outputs the signal DAC.
Next, the service processor control mechanism (2) inputs the diagnostic result verification processing operation and stores it in the service processor storage device (
3) (400B) from address 16 (400E) □ Received data from address 6 (4007) from address (400A)
number 16 16
It is determined whether or not the control processing function has been correctly executed by detecting whether or not it matches the expected value data.

The conventional service processor (1) operates as described above and performs diagnosis using only fixed information that has been adjusted in advance and stored in the external storage device (4).

However, depending on the failure of the processing device, the pattern of data used for control processing or the order of data to be executed may make it impossible to diagnose the failure. In such a case, the conventional □ service processor (1) must use another computer to change or reorganize the diagnostic control information recorded in the external storage device (4). This method has disadvantages in that a large amount of time is required for diagnosis, and in addition, it is difficult to create diagnostic control information suitable for diagnosing a failed computer.

The present invention has been made to eliminate the above-mentioned drawbacks of the conventional service processor, and an object of the present invention is to provide a service processor for an electronic computer in which diagnostic control information can be easily changed within the service processor.

The present invention will be described in detail below with reference to the drawings.

FIG. 4 is a block diagram showing one embodiment of the present invention.
The same reference numerals as in the figure indicate the same or equivalent parts, 0 is the service processor of the present invention, (13) is the service processor control mechanism corresponding to section 1 in FIG. 1, and 4) Hiro external storage device control mechanism. . Also, (h) is an external storage data bus, (i) is an external storage control interface line, and (j) is an external storage data bus.
is the external storage control bus.

Next, the operation of the apparatus shown in FIG. 4 will be explained. When the operator operates the console operating device (5) and selects the processing device to be diagnosed and the diagnostic control information, the service processor control mechanism (13) inputs the information from line (d) and (j) gives the address number of the diagnostic control information in the external storage device - the first gap in the machine building, and instructs to read it.

In response to this instruction, the external storage device control mechanism α◆ starts reading from the external storage device (4). That is, first, line (i
) Instructs K to start the external storage device (4). The external storage device (4) is assumed to be composed of, for example, a magnetic tape or a magnetic disk, and is activated to reproduce a desired portion of the recorded signal. Since this reproduced signal has a format different from the signal format processed by the external storage device control mechanism α◆, the signal format is converted in the external storage device (4) and the external storage device control mechanism (14 Output as a signal to be processed by external storage device control mechanism α◆
The signal transmitted from the external storage device (4) via the bus (h) is sent via the bus (f) to the service processor storage device (
3), and in the service processor storage device (3) these signals are transferred to Figure 1! 1i! It is stored in the form shown in FIG. 3(a) in the same manner as described above. When this storage is completed, the external storage device control mechanism (14) instructs the external storage device (4) to stop, and reports the completion of reading of the diagnostic control information to the service processor control mechanism (13) via the bus (j).

It is explained with reference to Fig. 1 that the service processor control mechanism (13) diagnoses each processing unit using the information stored in the service processor storage device (3) in the form shown in Fig. 3 (S!). It's the same as what I did.

Further, as explained above, depending on the malfunction of the processing device, there may be cases where the malfunction cannot be diagnosed depending on the sequence of data used for control processing or the order of data to be executed.

For example, (4003) 1 in FIG. 3 (IL). ~(400
A) Assume that the data shown in FIG. 5 (&) is stored as address data. And arithmetic processing unit (8)
It is suspected that some kind of malfunction has occurred in the
4003)1. ~(4006) Diagnosis was performed using the data at the ls address, but due to the characteristics of this data where all bits were ``1'' and all bits were ``0'', the diagnostic control process was repeatedly executed. Suppose that the failure could not be detected. On the other hand, the data shown in Figure 5 (IL) is
It is assumed that if the data is changed to the data shown in b), diagnosis can be easily made. In this case, the conventional device requires a separate computer to rewrite the contents of the external storage device, but the device shown in FIG. 4 can process as described below.

The operator instructs the service processor controller mechanism (13) from the console operating device (5) to display the contents of address 4003)ls on the console operating device (5). When this display is performed, the operator rewrites the content at address (4003) 16 to the desired content on the console operating device (5), and sends the rewritten content to the service processor storage device via the service processor control mechanism (13). Store in (3) (4003)□6 landing.

Similar processing (4004)□6 to (400A)□6II
After completing the rewriting from the content shown in Figure 5(a) to the content shown in Figure 5(b), the operator operates the service processor control mechanism (13) from the console operating device (5). ' to start diagnostic control. Since diagnostic control is performed using the data shown in FIG. 5 □(b), failures can be easily diagnosed.

As described above, according to the present invention, the operator can easily change and reorganize the control information stored in the service processor storage device by operating the comp pool operation device. This has the advantage that processing that requires control information can be easily executed.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing a conventional device, FIG. 2 is a diagram showing the types of signals on the diagnostic control bus in FIG. 1, and FIG. 3 is a diagram showing the types of signals on the diagnostic control bus in FIG. It is a figure showing an example of data. (3)...Service processor storage device, (4)...
・External storage device, (5)...Console operation device, (
12)...Service processor, (13)...Service processor control mechanism, (14)...External storage device control mechanism, (a)...-Diagnostic control bus. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Scope of Claims] A service processor that is connected to each processing device constituting a computer via a common diagnostic control bus and independently executes diagnostic control processing for each of the processing devices, comprising: a diagnostic program for each of the processing devices described above; an external storage device that stores a specified portion of the contents of the external storage device; a service processor storage device that stores a designated portion of the contents of the external storage device; and a service processor storage device that sequentially reads out the storage contents of the service processor storage device and reads out the information read out from each of the processing devices. a service processor control mechanism and mechanism that executes a diagnostic control operation specified by the read information to the processing device specified by the above via the diagnostic control bus; an external storage device control mechanism for inputting the read diagnostic program into the service processor storage device; an input mechanism for inputting signals for giving instructions to the service processor control mechanism from an operator; and states of the signals of the service processor control mechanism. a console operating device having a display mechanism for displaying a message, and displaying on the console operating device the contents of the address specified by the console operating device among the contents of the service processor storage device; change the
A service processor for an electronic computer, comprising means for inputting a signal corresponding to a changed display to the address of the service processor storage device.