JPS6049466A - Bus switching device of multiple computer system - Google Patents

Abstract

PURPOSE:To perform an accurate bus switching operation by using a bus switch control part which changes the transmitting destination of both switch command signal and state of connection in response to the state signal of connection between the process of a multiplex computer system and a CPU. CONSTITUTION:Two central processors are connected to two processes, an I/O device and a memory respectively via a bus switch BS. The switch BS connects a main bus connected to a CPU and a branch bus connected to the processes, the I/O device and the memory by the operation of an operation panel CP1 and the control of a bus switch control part BC. A push-button corresponding to the process of one side of the panel CP1 is pushed to turn on SW11-61. Thus pilot lamps L11-61 are turned on. While SW12-62 are turned on to light up pilot lamps 12-62 when a push-button corresponding to the other process of the panel CP1. Thus an operator can perform an intuitive bus switching action in response to each process.

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical field to which the invention pertains) The present invention relates to a bus switching device for switching seven connection systems connecting various devices arranged in each system in a multi-system computer system. related.

(Prior Art and its Problems) As an example of a multi-system computer system, FIG. 1 shows a configuration example of a dual-system computer system equipped with two computers, where CPU^ and CPU B are each Branch for main paths l'l-B-A and MB-B, which is a central processing unit (CPU) as a computer that controls the following various devices connected to main paths MB-A and MB-B. Paths BBI to BBBft are provided, and these branch buses BBI to BBB are connected via the main path MB-A or MB-B by path connections IA to 6A or IB to 6B provided in the path switch BS, respectively. Te CP
Connected to U A or CPU B.

Various devices installed in such a dual-system computer system include, for example, branch buses BBI to BBe include old memory, false memory, input/output device I101, input/output device 1102, and process input/output control device, respectively. P Ilo
1 and Process Output Control System #, P I/02
are connected, and further, process input/output control devices P, I1
01 and P Ilo 2 are each connected to a process to be controlled.

Note that in FIG. 1, a shaded path connection portion indicates a state in which the path connection portion connects a corresponding main bus and a branch bus.

Conventionally, path switching processing in such a dual-system computer system has been performed on the path switching device BS using the following device.

FIG. 2 shows an example of the configuration of a conventional operation panel CP through which an operator operates the path switching device BS, where N
P-A, NP, and B are the CPU name plates, PBI, and IA-PBLI of CPU A and CPt1 B, respectively.
3A and PELIB-PBL6B are each CPU
These push buttons are arranged corresponding to the name plates NP-A and NP-B and are associated with the various devices described above, respectively, and the path connection can be switched in response to the press of the push buttons. Further, for example, each pushbutton has an indicator light that lights up depending on the connection state of the path.

FIG. 3 shows the switching command signals generated by pressing the pushbuttons PBLIA'-PBL8A and PBLIB-PBL13B, and the path connections IA to
The flow of connection status signals generated by 6A and IB to 6B is shown below. Here, 5WIA-5W8A and LIA-
L8A are push buttons PBLIA-PBL8A, respectively.
The switches 5WIB to 5W6B and LIB-LflB are the switches that are closed and the indicator lights that are turned on when the push buttons PBLIB to PBL8B are pressed, respectively. i.e. pushbuttons PBLIA NPBL6A and PB
In response to pressing LIB-PBL6B, switching command signal 5S
IA, 5S8A, and 5SIB to 5S8B are added to path connections IA to 6A and IB to 6B, respectively, and the main path and branch bus corresponding to the path connections are connected. The path connection units IA-6A and IB-6B output connection state signals 5CIA-5C8A and 5cis-5ce, respectively, according to the specified connection state.
B is supplied to indicator lights LIA-L8A and LIB-1, 8B to light them.

In this way, in the conventional device, the BS shown in the first figure is arranged for each CPU series as shown in the second figure, and is arranged one-to-one with the path connections IA-6A and IB-6B, respectively. Corresponding pushbuttons PBLIA to PBIJA
and PBLIB-PBLfiB, the operator issues a path switching command and monitors the path connection state. However, in such conventional devices, it is difficult to know which CPU is connected to a certain process.
Alternatively, when an operator investigates which 110 devices or storage devices are connected, the operator first recognizes the process involved in the investigation, that is, the process input/output control device of that process, and which CPU family it belongs to. Then, check the name plate of the CPU of that series or the one that is lit.
It is necessary to investigate the push buttons of 10 devices and storage devices.

Furthermore, in conventional devices, if one of the CPUs fails, the process controlled by that CPU is transferred to another CPU.
Even in the case of backing up using a PU, although the operator would intuitively desire to switch the process to the CPU, in actual operation, the process is switched to the CPU instead.

In other words, when operating a multi-system computer system, the operator generally recognizes the system with a focus on processes.
However, since the conventional 7-Hess switching device requires operation centered on the CPU, the operator cannot operate according to intuition, and there is a need to improve the operability of the device. there were.

(Object of the Invention) The present invention has been made in view of such conventional problems, and it provides a CPU, storage device, and I/O for a process.
It is an object of the present invention to provide a path switching device for a multi-system computer system, which allows the connection status of ten devices to be easily grasped, and furthermore, the connection switching operation can be easily performed centering on the process.

(Summary of the Invention) In order to achieve the above object, the present invention provides a plurality of computers, a path provided separately for each of the plurality of computers, a plurality of devices including a plurality of control targets, and a method for controlling each of the plurality of devices. In a multi-system computer system comprising a connection means for connecting to one of the buses and a connection state information output means for outputting the connection state of the connected R device, , a path shift command means for generating a bus switching command for switching path connections to a connecting means in relation to a plurality of devices other than a plurality of machines and a plurality of needles to be controlled, and a connection state information output means. a display means for displaying the connection state from the computer, and sending information indicating the destination and connection state of the bus switching command related to the plurality of devices excluding the plurality of control means, according to the connection state between the controlled object and the computer. It is characterized by comprising a changing means for changing the tip.

(Example of the invention) Hereinafter, the present invention will be described in detail with reference to the drawings.

FIG. 4 shows an example of the configuration of an operation panel CP1 related to a bus connection device in a dual-system computer system, as an example of a seven-way bus switching device for a multiple-system computer system according to the present invention. Here, NPI and Np2 are process name plates of processes P1 and P2, respectively, and in this example,
Pushbuttons PBL l'l to PBL13 corresponding to process name plates NP1 and Np2, respectively with indicator lights
1 and PBI, 12 to PBL132 are arranged. Those pushbuttons PBL11 to PBL61 and PBL12
~PBL 62 corresponds to each part shown in figure 81 as shown in the fourth figure. Note that a shaded pushbutton in the figure indicates that the device and the corresponding process are in a connected state, and the indicator light of the pushbutton is lit. That is, in this case, each part is in the same connection state as in FIG.

FIG. 5 shows a bus switching control section B according to the device of the present invention, which is disposed between the path switching device shown in the first drawing and the operation panel shown in the fourth drawing.
An example of the circuit configuration of C is shown. Here, the operation parameter CPI
Inside, 5WII to 5W81 and Lll to 61 correspond to the process Pi, respectively, and pushbuttons P
Switches that close when BLII to PBL81 are pressed and indicator lights that light up, 5W12 to SW82 and L
12 to L82 respectively correspond to process P2 and are switches that are closed in response to pressing of pushbuttons PBL'l'2 to PBL62 and indicator lights that are turned on. Inside the bus switching control unit BC, RY5A.

Ry5B, Ry8A and By 8B are relays,
The contacts are closed depending on the connection state of the connection parts 5A, 5B, 13A and 6B, respectively.

CPU A and CPU of the pushbutton group shown in Figure 4
Pushbuttons corresponding to PBLII, PBL21. PBL
The switching command signals 5S11, 5S21, 5S12 and 5S22 generated by pressing 12 and PBL22 are transmitted to the path connections 5A, 5B and 8 in the bus switch BS, respectively.
Lead to A and 6B.

On the other hand, the connection state signals 5C5A, 5C5B, 5CF3A and 5C8B generated by the path connecting parts 5A, 5B, 13A and 8B are transmitted to the relays Ry5A, Ry5B, respectively.
, Ry13A and Ry8B, the indicator lights 1, 11 .
L21. Lead to L12 and 1,22.

Among the pushbutton groups corresponding to the storage devices M1 and M2, the I10 device I101, and the device 102, the pushbutton PBL31. related to the process P1. PBL41. PBL51
．． Switching command signal 5S3 generated by pressing PBL61
1,5S41. SS51 and 5S61, relay RY
Bus connections IA, 2A, respectively, via 5A contacts
, 3A and 4A, and via the contacts of the relay Ry 5 B, the path connections IB, 2B, 3B, respectively.
and leads to 4B. On the other hand, the pushbutton PBL32. related to process P2. PBL42. PBL52 and PBL
Switching command signals 5S3j and 5S generated by pressing 82
42.5S52 and 5S62 are led via the contacts of relay Rff6A to bus connections IA, 2A, 3A and 4A, respectively, and via the contacts of relay Ry8B to bus connections IB, 2. B, leads to 3B and 4B.

In addition, bus connections IA and 2A related to CPU A
, 3A and 4A generate connection status signals 5CIA,
5C2A, 5C3A and SC:4A relay Ry5
Via the contacts A, the indicator lights Lax, Lal,
+, 5t and Lf31, and also relay RY8A
via the contacts of the respective indicator lights L32. L42. L5
2 and Lfi2. Furthermore, the connection state signals 5CIB, -5C2B, 5C3E and 5C4 generated by the bus connections IB, 2B, 3B and 4B associated with CPU B
B to indicator light 1 through the contact of relay RY5B.
, 31. L41.

L51 and Lθ1, and the respective indicator lights L32. through the contacts of relay Ry8B. L42. Leading to L52 and L[12.

According to this configuration, no matter which main path MB-A or MB-B the process P1 or P2 is connected to, the switching command signal and the connection state signal are guided to the regular destination. For example, when the connection display is as shown in the fourth diagram under the path connection state shown in the first diagram, the I10 device l
When the operator desires to use 102 for the process PI and presses the pushbutton PBLflll related to the process PL side, at that point the bus connection 5A is connected and the relay Ry5A is operating. Therefore, the connection switching signal SS81 is guided to the bus connection section 4A. Then, the connection state signal 5C4A is guided to the indicator light LSI via the contact of the relay RY5A, and the indicator light LSI lights up.

(Effects of the Invention) As described above, according to the present invention, the connection between the process and the CPU of a multi-system computer system is switched according to the status signal, and the destination of the switching command signal and the destination of the connection status are determined. A path switching control section for changing the path is provided, and the operating section is configured to allow the operator to perform path switching operations intuitively and accurately in accordance with each process, making it much easier to operate than conventional devices. It is possible to realize a lotus switching device for a multi-system computer system that is improved in this way.

In the above-described embodiment, the bus switching control section is configured using a relay circuit, but it is of course possible to replace it with a semiconductor circuit, for example, or to control a microprocessor according to a predetermined program.

[Brief explanation of the drawing]

Figure 1 is a block diagram showing the configuration of a dual computer system as an example of a multiplex computer system, and Figure 2 is a conventional operation panel for performing path switching operations for the dual computer system shown in Figure 1. FIG. 3 is a diagram illustrating the flow of signals between the dual system computer system shown in FIG. 1 and the operation panel shown in FIG. As an example of a path switching device for a computer system, for the three-claw computer system shown in Figure 1,
A diagram illustrating an example of the arrangement of operation panels for performing path switching operations, FIG. FIG. 2 is a circuit diagram showing a configuration example of a bus switching control section. A, B...CPU, old, M2...Storage device, Ilo 1, Ilo 2...110 equipment, PI, P
2... Process, PIlo 1, PIlo 2... Process input/output control device, MB-A, MB-8... Main path, BBIγBBB
...Branch path, ■A to f (A, IB to 6B...Bus connection section, BS...
・/Hess switch, NP-A, NP-B...CPU name plate, PBLIA
-PBL8A, PBLIB -PBL8B...Push button. 5WIA-5W6A, 5WIB N5W6B...Switch, LIA-L6A, LIB-L8B...Indicator light, NPI, NF2...Process name plate, PBLIl
, -PBL81. 'PBL12~P'BL82...Push button, CPI...Operation unit, BC...Bassino change control unit, 5WII~5W81, 5W12~5Wf12.'' 7.
E/child, Lll-LSI, Li2~L82... Indicator light, Ry5A, Ry5B, Ry6A, Ry8B・
··relay. Patent applicant Fuji Electric Manufacturing Co., Ltd.

Claims (1)

[Claims] A plurality of computers, a bus provided separately for each of the plurality of computers, a plurality of devices including a plurality of control targets, and a connection for connecting each of the plurality of devices to one of the buses. and a connection state information output means for outputting the connection state of the connected devices, wherein the Q4 multiplex system is arranged corresponding to each of the plurality of control objects, and 111
bus switching command means for generating a bus switching command for switching the connection of the bus to the connection means in relation to the plurality of devices other than the plurality of computers and the plurality of control targets; and the connection state. display means for displaying the connection state from the information output means; and a destination of the bus switching command related to a plurality of devices other than the plurality of control objects, depending on the connection state between the control object and the computer. and changing means for changing the destination of the th information representing the connection state. (Margin below)