JPH02729B2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a display device that displays the operating status of a service processor (hereinafter referred to as SVP), and particularly relates to a display device that displays the operating status of a service processor (hereinafter referred to as SVP), and particularly when a failure occurs in a predefined SVP operating status display device. In addition, if another display device can be used as an SVP operation display device, this can be used as an SVP operation display device.

[Prior art and problems]

For example, as shown in FIG. 1, in a data processing device, the host processor 1 has 10-0, 10-1,
A plurality of keyboard display devices as shown by 10-2...10-n are connected. An SVP 2 is connected to this data processing device for performing operations such as loading an initial program and collecting logging information when a failure occurs in the data processing device. In such data processing equipment, certain keyboard display devices
It is allocated for SVP2, and performs IPL control or collects logging information from the keyboard display device allocated as this SVP display device. As this SVP display device, the keyboard display device 10-0 with the lowest machine number #0 is normally assigned.

By the way, if such a specific keyboard display device is exclusively assigned as an SVP display device, it cannot be used if a failure occurs in this SVP display device and it becomes inoperable. Therefore, it was impossible for this data processing device to operate as a system. Therefore, in such cases, a custom engineer had to be called in to repair the SVP display device.

[Purpose of the invention]

An object of the present invention is to solve the problem that, when an SVP display device is specified as described above, the system cannot operate if there is a failure in that SVP display device. Check the keyboard display device that can theoretically operate as a device,
Even if the keyboard display device predefined as the SVP display device is inoperable, another operable keyboard display device can be used as the SVP display device.
It is an object of the present invention to provide an SVP display allocation control method that enables system operation by allocating a device as a display device and performing IPL etc. using this device.

[Structure of the invention]

In order to achieve the above objectives, the SVP of the present invention
In the display layout control method, a data processing device is configured to include a service processor and a plurality of keyboard display devices, and to use a specific one of the plurality of keyboard display devices as a display device for the service processor. , a determination table filled with data that can be used to determine whether or not one of the plurality of keyboard display devices can be used as a display device for a service processor; and an operation indicating whether or not the plurality of keyboard display devices are operating normally. It has a status indicator and a normal state determining means for determining whether the keyboard display device normally used as a display device for the service processor is normal or not, and if the keyboard display device normally used is abnormal, other The present invention is characterized in that the keyboard display device is selected from the determination table and used as a display device for the service processor.

[Embodiments of the invention]

An embodiment of the present invention will be described based on FIGS. 2 and 3 and with reference to FIG. 1.

Figure 2 is a configuration diagram of one embodiment of the present invention, most of which is provided in the host processor, and the third part is provided in the host processor.
The figure is an explanatory diagram of the operation.

In the figure, parts with the same reference numerals as others indicate the same parts. Reference numeral 11 denotes an operating state indicating section, which includes a keyboard display device 1.
It is composed of registers having sections 11-0, 11-1...11-n corresponding to each of 0-0, 10-1...10-n, and 12 is a normality determination unit for the service processor. 13 is a determination table that indicates whether the keyboard display device can be used as a service processor display device or not. 14 is a service processor display device entry register in which the machine number of a keyboard display device specified in advance as a service processor display device is entered prior to IPL; 15 is a rewriting register and service processor display device entry register 14
16 is a rewriting control unit, 17 is an inverter, and 18 is a keyboard display device to be used as a service processor display device in the event that the display device entered cannot operate normally. , 19 are AND circuits, and 20 are OR circuits.

The operating state instruction section 11 includes a keyboard display device 1
This indicates whether or not 0-0, 10-1...10-n is operating normally, and is divided into categories 11-0, 11-1...11-n corresponding to each keyboard display device.
is set, and for example, "1" is written in the normal state, and "0" is written in the inoperable state. The operating state is entered when each keyboard display device 10-0, 10-1...10-n is powered on, that is, when the power is turned on.

The judgment table 13 indicates whether or not the keyboard display device can be used logically as a service processor display device. For example, if it is usable, it is accepted, and if it is not usable, it is not, depending on the machine number. This is what is displayed on the page. in this case,
If, for example, Japanese language display is required as a condition for use as a service processor display device, instead of just writing whether it can be logically used as a service processor display device or not, each keyboard display device can be used as a service processor display device. It is also possible to write down the characteristics and search for each of these characteristics so that a service processor display device that meets the necessary conditions can be selected.

When the keyboard display device specified as a service processor display device is inoperable, the rewrite control unit 16 accesses the determination table 13 and selects one of the other keyboard display devices that can be used as a service processor display device. is extracted and written in the rewrite register 15.

Next, the operation of the present invention will be explained based on FIG. In this case, the keyboard display device 10-0 shown as machine number #0 in FIG. 2 is specified as a service processor display device (hereinafter referred to as console). Therefore, the machine number #0 is written in the service processor display device entry register 14 shown in FIG.

If you turn on the power to the data processing device now, the first thing you'll want to do is turn on the service processor display device entry register 1.
The machine number #0 is entered in 4, and the keyboard display devices 10-0, 10-1...10-n correspond to the operating state indicating section 11 depending on whether the operation is normal or not. Category 11-0,
For example, if the operation is normal, "1" is set in 11-1...11-n, and if the operation is impossible, "0" is set. The contents of this operating state indicating section 11 are checked by the normality determining section 12, and thereby each keyboard display device 10-0, 10-1...1
You can check the operating status of 0-n.

In this case, when the keyboard display device 10-0 used as a console operates normally, that is, when the console is in an operable state, "1" is set in the category 11-0, so the normality determination unit 12 sets "1". Since the AND circuit 18 is turned on and the AND circuit 19 is turned off due to the presence of the inverter 17, the machine number #0 written in the service processor display device entry register 14 is the AND circuit 18 and the OR circuit 2.
0 and becomes a console display signal. In this way, the host processor 1 recognizes the keyboard display device 10-0 as a console, and it becomes possible to perform, for example, IPL control from the keyboard display device 10-0.

However, if the keyboard display device 10-0 is inoperable for some reason, the section 11-0 is set to "0" as shown in FIG. When detecting that -0 is "0", it outputs "0" and turns off the AND circuit 18. At this time, the inverter 17 outputs "1" and the AND circuit 19 is turned on.

At this time, the normality determination unit 12 determines whether the other classifications 11-
Read 1 to 11-n, check whether there is a keyboard display device that is operating normally, and make sure that "0" is set in the category of the keyboard display device used as a console and that other keyboard display devices are working normally. If there are any operating units, these information is transmitted to the rewrite control unit 16. As a result, the rewrite control unit 16 reads the determination table 13 and searches for a keyboard display device that can be used as a console. Then, for example, it is detected that the keyboard display device 10-1 of machine number #1 can be used as a console.

At this time, the normality determination unit 12 gives "1" to the category 11-1, "1" to the category 11-2, ... category 11-n.
Since it is transmitted that "0" is set in the rewrite register 15, the rewrite control unit 16 determines that the keyboard display device with the machine number #1 can be used as a console. Machine number #1 is set to .

At this time, the AND circuit 19 receives "1" from the inverter 17 and is in the ON state, so the machine number #1 set in the rewrite register 15 is outputted via the AND circuit 19 and the OR circuit 20. As a result, the host processor 1 recognizes the keyboard display device 10-1 as a console in this case, so that the system can operate.
-IPL and logging control will be performed from 1.

If the failure of the keyboard display device 10-0 that was inoperable in the above is repaired and the keyboard display device 10-0 is restored to normal operation, Category 11
-0 will be set to "1". In response to this, the normality determination unit 12 then selects the AND circuit 1.
8 is output, the AND circuit 18 is turned on, and conversely, the inverter 17 outputs "0" and the AND circuit 19 is turned off, so that it is set in the service processor display device input register 14 again. The current machine number #0 will be output as a console display signal. The keyboard display device 10-0 whose malfunction has been repaired in this way is the device number #1.
The status of the keyboard display device 10-1 of machine number #1 will be taken over as it is and used as a console again, and as a result, the keyboard display device 10-1 of machine number #1 will be released from being a console and can be used for other purposes. Can be done.

〔Effect of the invention〕

According to the present invention, even if the keyboard display device used as a console fails, the data processing device can be operated using another keyboard display device, so data processing efficiency can be improved. .

[Brief explanation of drawings]

FIG. 1 is a data processing device having a plurality of keyboard display devices, FIG. 2 is a configuration diagram of an embodiment of the present invention, and FIG. 3 is an explanatory diagram of its operation. In the figure, 1 is a host processor, 2 is a service processor, 10-0, 10-1...10-n
11 is a keyboard display device; 11 is an operating status indicator;
12 is a normality determination unit; 13 is a determination table; 14 is a service processor display device entry register; 15
1 is a rewriting register, 16 is a rewriting control unit, 17 is an inverter, 18 and 19 are AND circuits, and 20 is an OR circuit.

Claims (1)

[Claims] 1 In a data processing device that has a service processor and a plurality of keyboard display devices, and is configured to use a specific one of the plurality of keyboard display devices as a display device for the service processor, a determination table filled with data for determining whether or not the display device can be used as a display device for a service processor; and an operation status indicator indicating whether or not the plurality of keyboard display devices are operating normally. It has a normal state determination means for determining whether the keyboard display device normally used as a display device for the service processor is normal or not, and if the keyboard display device normally used is abnormal, another keyboard display device is used. A service processor display allocation control method, characterized in that the service processor is selected from the above determination table and used as a display device for the service processor.