JPH0196729A - Information processing system - Google Patents

Abstract

PURPOSE:To reduce the cost of an information processing system by securing the branch connection of a diagnosis control part of a CPU, a channel device and an operating console to a single transmission line so that the number of interfaces can be cut down to just one between the transmission line and the diagnosis control part. CONSTITUTION:When an operating system OS sends a message to an OPS4, the data are sent to the OPS4 from a channel device 3. In this case, the device 3 sends a packet including the OPS4 added to the output message as a receiver address and the device 3 added as a transmitter address onto a data transmission line 5. A network adaptor 20 of the OPS4 transfers the received packet to an internal memory 19 in case the receiver address sent onto the line 5 shows the OPS4 and reports an interruption to a microprocessor 18. While in case the data supplied through a keyboard of the OPS4 are sent to the OS, the device 3, the OPS4 and the packet of the keyboard input data are sent onto the line 5 via the adaptor 20 as the receiver address, the transmitter address and the data respectively.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an information processing system in which an operation console has a normal operation function and a maintenance/diagnosis operation function.

[Conventional technology]

Conventionally, in this type of information processing system, a first interface that connects an operation console and a channel device, and a second interface that connects an operation console and a diagnostic section of an information processing device are two physically independent interfaces. Met.

FIG. 4 is a block diagram showing the configuration of a conventional information processing system. The information processing system of this prior art example is a central processing system consisting of an arithmetic processing unit (hereinafter referred to as EPU) 111, a system control unit (hereinafter referred to as SCU) 112, and a maintenance diagnosis control unit (hereinafter referred to as DGP) 113. A device (hereinafter referred to as CPU) 101, a main memory device (hereinafter referred to as MMU) 102, and a channel device 103
and an operation console (hereinafter referred to as ops) 105. The 0PS 105 has a display key 153, a floppy disk device 155, and a magnetic disk device 154.

The ops control unit 151 includes an ops control unit 151.
As shown in FIG.
, a channel adapter 116 , a diagnostic adapter 117 , a display keyboard adapter 118 , and a magnetic disk adapter 119 .

It consists of a floppy disk adapter 120. O
The PS 105 transfers the microprogram loaded from the floppy disk device 155 or magnetic disk device 154 to the internal memory 115 to the microprocessor 11.
4 are executed sequentially to realize the functions of the operation console. Channel device 103 and OPS 105 are connected via interface line 107. Inside the OPS control unit 151, the interface line 107 is connected to the channel adapter 116 and the microprocessor 11
Data transmission and reception with the channel device 103 is realized under the control of the channel device 103. Furthermore, the DGP 113 and the 0PS 105 are connected via an interface line 106. Inside the OPS controller 151, the interface line 106 is connected to the 1 diagnostic adapter 117 and the microprocessor 11
Data transmission and reception with the DGP 113 is realized under the control of the DGP 113. The 0PS 105 has a display keyboard adapter 118, and under the control of the microprocessor 114 realizes display output to the display key date 153 and input functions through key operations.

Conversations between the operating system of the information processing system and the operator, ie, normal operating tasks, are conducted between the channel device 103 and the OPS 105 via the interface line 107.

In addition, maintenance diagnosis work is carried out by DGP 113 and OPS 1.
05 via a 106ft interface line.

[Problem that the invention seeks to solve]

As mentioned above, in conventional information processing systems.

Interface line 107 between OPS 105 and channel device 103 and interface line 106f between OPS 105 and DGP 113: independently provided
Since the channel adapter 116 that controls the interface 107ft and the diagnostic adapter 117t that controls the interface line 106 are independently provided in the control unit 151,
The drawbacks are that the physical quantities are large and expensive, and that different microprograms are required to control the two types of adapters.

[Means for solving problems]

In the information processing system according to the present invention, an operation console that controls a man-machine interface is connected to a channel device of a central processing unit and a diagnostic section of the central processing unit, and data is exchanged with the central processing unit through the interface with the channel device. In an information processing system that performs normal operation operations such as sending and receiving information, and maintenance and diagnosis operations through an interface with the diagnosis section of the central processing unit, the data transmission path includes the operation console, the channel device, and the central processing unit. Connect the diagnostic section of the device.

Each device is provided with a means for transmitting and receiving messages including destination 0 source information and data, and normal operation operations are carried out between the operation console and the central channel by transmitting and receiving messages between the operation console and the channel device. The present invention is characterized in that maintenance and diagnosis work is realized by transmitting and receiving packets to and from the diagnosis section of the processing device.

〔Example〕

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of an information processing system according to an embodiment of the present invention. CPU 1 is EPU 11
It consists of SCU 12 and DGP 13.

MMU 2 and channel device 3 are connected to SCU 12 .

The OPS 4 is composed of an ops control section 14, a magnetic disk device 15, a floppy disk device 16, and a display keyboard 17. Channel device 3 and DGP
13 and OPS 4 are connected to signal line 6° and signal line 7, respectively.
It is branched and connected to the data transmission line 5 by a signal line 8 .

FIG. 2 is a block diagram showing details of the ops control unit 14. The OPS control unit 14 includes a microprocessor 18 connected to an internal path 24, an internal memory 19, a network adapter 20, a display key gate adapter 21, a magnetic disk adapter 22, and a floppy disk adapter 23. Ru.

Next, the operation of each part will be explained in order.

The operating system of information processing system is OPS
When outputting a message to OPS 4, data is output from channel device 3 to OPS 4. At this time, the channel device 3 sends OPS 4 as the destination address in the output message.
m outputs the packet to which the channel device 3 is added as the source address to the data transmission path 5. OPS 4 network adapter 20.

The destination address of the 4 packet sent on transmission path 5 is O.
If PS 4 is indicated, the sent signal is transferred to the internal memory 19 and the interrupt is reported to the microprocessor 18.

The microprocessor 18 analyzes the packet received by the internal memory 19 and performs processing corresponding to the source address and data. In the case of message output from the channel device 3 described above, the message is output to the display.

Conversely, if you try to send data entered into the OPS 4 key gate to the operating system,
Channel device 3. as a destination address to transmission line 5 via network adapter 20 of OPS 4. Sends OPS 4 as the source address and the keyboard input data Noyacket as the data.

The channel device 3 sends and receives packets as in OPS 4, and sends data to the operating system.

Data transmission and reception between the DGP 13 and the OPS 4 is performed in the same manner. When OPS 4 attempts to perform 9 diagnostics, it sends the diagnostic command to DGP 13 as the destination address.

It is packetized together with OPS 4 as a source address and output to transmission path 5. When the DGP 13 receives the jIP packet from the OPS 4, it analyzes and executes the diagnostic command included in the received data. Further, the DGP 13 sends an AI packet with OPS 4 as the destination address of the diagnosis result. The OPS 4 receives the AI packet and displays the diagnosis result on the display.

FIG. 3 shows an embodiment in which the transmission path is duplicated. Transmission line 33
．． The configuration is similar to that of the embodiment shown in FIG. 1, except that it has two transmission paths 34 and two ports. One of the two transmission lines is used for normal operation, and the other is used as an alternative line when a failure occurs in the normal operation system and communication becomes impossible.

〔Effect of the invention〕

As explained above, the present invention allows the interface between the operation console and the channel device in one central processing unit and the interface between the operation console and the diagnostic control unit to be integrated into one adapter 1 that controls the interface. control programs can be shared. As a result, the physical quantity can be reduced, the price can be lowered, and the program development cost can also be reduced. Also.

Duplicating the transmission line has the effect of increasing reliability.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of an information processing system according to an embodiment of the present invention, and FIG. 2 is a block diagram showing details of the operation console control section in FIG. 1. FIG. 3 is a block diagram showing the configuration of an information processing system according to an embodiment of the present invention having a dual transmission line. FIG. 4 is a block diagram showing the configuration of a conventional information processing system, and FIG. 5 is a block diagram showing details of the operation console control section in FIG. 4. 1...Central processing unit (CPU) *2...Main memory unit (MMU), 3...Channel device, 4-...Operation console (OPS), 5-...
・Data transmission line, 6 to 8...Signal line, 11-...Arithmetic processing unit (EPU), 12...System control unit (SCU), 13...Diagnostic control unit (DGP)
). 14...ops control unit, 15...magnetic disk device. 16... Floppy disk device, 17... Display key date, 18... Microprocessor (M
PU) 19...Internal memory (MEM), 20.
・・Network adapter (LAN adapter), 21・
・・Display key is - door adapter (CRT/KB adapter), 22 pieces...magnetic disk adapter (DtSK adapter), 2
3... Floppy disk adapter (FDC adapter). 30-CPU, 31-DGP, 32... Channel device. 33-34...Transmission line, 35...Operation console. 36...-ops control unit. Figure 1 Figure 3.

Claims (1)

[Claims] 1. An operation console that controls a man-machine interface is connected to a channel device of the central processing unit and a diagnostic section of the central processing unit, and communicates data with the central processing unit through the interface with the channel device. In an information processing system, the operation console, the channel device, and the central processing unit are connected to the data transmission path in an information processing system that implements normal operation operations that involve sending and receiving data, and maintenance and diagnosis operations that are performed through an interface with the diagnostic unit of the central processing unit. The diagnosis section of the device is branched and connected, and each device is provided with a means for sending and receiving packets containing destination, source information, and data, and normal operation is performed by sending and receiving packets between the operation console and the channel device. An information processing system characterized in that maintenance and diagnosis work is realized by transmitting and receiving packets between the operation console and a diagnosis section of the central processing unit. 2. Two sets of means for transmitting and receiving packets are provided in the data transmission path and each device, and the first packet transmitting and receiving means of each device is connected to the first data transmission path, and the second packet transmitting and receiving device of each device is connected to the second data transmission path. 2. The information processing system according to claim 1, wherein the packet transmitting/receiving means are branch-connected, and when a failure occurs in one of the data transmission paths, the other is used as a substitute.