JPH0664531B2 - Computer system device configuration recognition device - Google Patents

Description

The present invention relates to a device configuration recognition method for a computer system, and more particularly to a configuration recognition method for a logical device to be controlled by a service processor.

A central processing unit (hereinafter referred to as CPU), a main storage device (hereinafter referred to as MM) by a service processor (hereinafter referred to as SVP)
In a computer system that performs maintenance diagnosis and operation control of logical devices such as U) and input / output control devices (hereinafter referred to as IOPs), what is the logical device that the SVP targets for maintenance diagnosis and operation control? It is first necessary to recognize if it is configured.

[Conventional technology]

Conventionally, as a method of performing such recognition, a method in which the configuration information of a logical device is written in the storage unit of the SVP in advance and the information is recognized by reading it out during SVP operation, and an identification name is stored in each logical device. Have a register
A method is known in which the VP recognizes by reading the contents of the register.

[Problems to be solved by the invention]

However, the method of writing the configuration information in the storage unit of the SVP by the above-described conventional acquisition has a drawback that an error may be made by a human being who operates it, and the configuration information is input each time the configuration is changed such as addition. It has the drawback of having to do it again.

In addition, a method for obtaining configuration information by reading a register that stores an identification name in the above-described logical device is
The switch of the distribution board that controls the power-on of the entire computer system is turned on, and the power switch of each logic device is turned on to supply power to each logic device as a whole, and the logic device is in the normal operable state. For the first time, the configuration can be recognized, so if the power switch of each logical unit is not turned on, whether the logical unit is not powered as a whole and the logical unit is not in the normal operable state. Alternatively, there is a drawback that it is not clear whether or not the logical device itself is configured. In this latter method, when the switch of the distribution board is turned on, if power is supplied to all of the logical units configured immediately and normal operation is possible, Although the above-mentioned drawbacks are almost eliminated, on the other hand, it becomes difficult to individually perform the operation of supplying power to each logic device. For example, after performing processing such as power supply abnormality check individually, each logic device is It becomes impossible to individually enable the operation.

The present invention is an improvement over these conventional drawbacks,
The purpose is that it is not necessary to set the configuration information in the SVP in advance, and even if the switch of the distribution board that controls the power supply to the entire computer system is turned on, the power is not supplied to the entire device. It is to provide a method capable of correctly recognizing configured logical devices including logical devices.

[Means for Solving the Problems] In order to achieve the above object, the present invention provides an SVP and an SVP.
In a computer system composed of a plurality of logical units connected to a VP, a distribution board for controlling power-on to the entire computer system is provided, and each logical unit is powered on by the distribution board. A first power supply circuit which is activated; an identification name storage circuit which is supplied with power from the first power supply circuit and stores an identification name; and a supply of power from the first power supply circuit which stores the identification name An identification name comparison circuit that compares the identification name stored in the circuit with the identification name given by the SVP and returns a response to the SVP if they match, and the logic is supplied with power from the first power supply circuit. A second power supply circuit that supplies power to a part other than the identification name storage circuit and the identification name comparison circuit in the device, the SVP transfers the identification name to the identification name comparison circuit,
According to the presence or absence of the response, it is configured to have a configuration recognition means for recognizing whether or not the logical device corresponding to the identification name is configured.

[Action]

When the switch of the distribution board is turned on, power is even supplied to the SVP and each of the configured logic devices, and the first power supply circuit of each logic device is activated to store the control unit and the identification name of the second power supply circuit. Power is supplied to the circuit and the identifier comparison circuit. SV
When the identification name is transferred from P to the identification name comparison circuit, the identification name comparison circuit compares this with the identification name stored in the identification name storage circuit, and if they match, returns a response to the SVP. The SVP recognizes that the logical unit corresponding to the identification name is configured if there is a response after transferring the identification name, and recognizes that it is not configured if there is no response.

〔Example〕

Referring to FIG. 1, one embodiment of the present invention is SVP1,
It is composed of CPU 2, MMU 3, IOP 4, and distribution board 5.

The SVP 1 has a configuration recognition means 11, and the MPU 2 has a main power supply circuit 21 that is a second power supply circuit, a sub power supply circuit 22 that is a first power supply circuit, an identification name storage circuit 23, and a command processing circuit 24. Similarly, the MMU 3 and the IOP 4 respectively include the main power supply circuits 31 and 41 which are the second power supply circuits, the sub power supply circuits 32 and 42 which are the first power supply circuits, the identification name storage circuits 33 and 43, and the command processing circuit 34, Has 44.

Further, the SVP 1 and the command processing circuits 24, 34, 44 are connected by the power supply control interface 12, and transfer of the identification name and the response via the power supply control interface 12 and the main power supply circuit 2
Transfers of input commands such as 1, 31, and 41 are performed.

The distribution board 5 controls power-on to the entire computer system and has one or a plurality of switches. When these switches are turned on, for example, an AC power supply is an SVP.
1, CPU2, MMU3, IOP4.

The power is turned on by turning on the switch of the distribution board 5, and the switch (not shown) of the distribution board 5 is turned on.
AC power is supplied to P1, the main power supply circuits 21, 31, 41 and the sub power supply circuits 22, 32, 42. The sub power supply circuits 22, 32, 42 supply DC power to the main power supply circuits 21, 31, 41, the identification name storage circuits 23, 33, 43, and the command processing circuits 24, 34, 44 by this AC power supply. The main power supply circuits 21, 31, 41 are CPU2, MMU only if the AC power supply and the DC power supply are supplied.
3, DC power is not supplied to the logic part of IOP4, for example, S
When a power-on command is sent from the VP1 to the command processing circuits 24, 34, 44 via the power supply interface 12, the output of the command processing circuits 24, 34, 44 starts the supply of DC power to the logic section. . That is, the operation of supplying power to the entire device can be individually performed for each logical device. Note that the logic section here means a section of the logic device excluding the identification name storage circuit and the command processing circuit.

When the DC power switch (not shown) of SVP1 is turned on,
DC power is supplied to each part of the SVP1. This makes S
The operation of VP1 is started, and the program of SVP1 is loaded and executed. Then, the configuration recognition means 11 is activated in the initial setting process of the SVP1 program.

The configuration recognizing means 11 operates according to a power supply control table as shown in FIG. 2, for example, and the power supply control table is SVP1.
Consists of the maximum number of entries managed by, and one entry consists of an identification name, constituent bits, and other control information.

The configuration recognizing means 11 performs, for example, a maximum configuration repetition process 101, an identification name extraction process 102, an identification name-based configuration confirmation process 103, and a configuration information setting process 104, as shown in FIG.
Of these, the maximum configuration repetition processing 101 is the next identification name extraction processing 1
02, configuration confirmation process 103 by identification name, configuration information setting process 1
This is a process of confirming whether or not each process of 04 is executed for all entries of the power supply control table, and if so, the process of the configuration recognition means 11 is ended. If not executed, the process of extracting the identification name 102, the process 103 of confirming the configuration by the identification name, and the process 104 of setting the configuration information are performed on the next entry in the power control table.

The identification name extraction processing 102 extracts the identification name stored in the entry of the power supply control table. This identification name is a unique number assigned to each logical unit.
U1 and 02 can be limited to another CPU not configured in FIG. 1, 03 can be limited to MMU3, and 0n can be limited to a certain IOP not configured in FIG. Each identification name is stored in advance in the identification name storage circuit of the corresponding logical device.

The identification name-based configuration recognition process 103 is a process for confirming whether or not a logical device corresponding to the identification name is configured by the identification name extracted by the identification name extraction process 102. When the identification name and the response request command are sent via the power supply control interface 12, the command processing circuits 24, 34 and 44 compare the sent identification name with the identification names stored in the identification name storage circuits 22, 32 and 42. If they do not match, no operation is performed, and if they match, command processing including processing of returning a response is performed.
That is, when the configuration is confirmed with the identification name 01, the command processing circuit 24 of the CPU 2 processes the response request command and sends the response to the power supply control interface 12, so that the SVP is used.
In the case of 1, the response is received, and when the configuration is confirmed with the identification name 02, there is no corresponding identification name storage circuit.
At 1, no response is received.

The configuration information setting process 104 is a configuration recognition process 103 based on the identification name.
If a response is received as a result of the confirmation performed in step 1, the configuration bit in the corresponding entry of the power control table is set to "1", for example, indicating that there is a configuration, and no response is received after a certain period of time. Sets, for example, "0" indicating no configuration.

When all the processes of the configuration recognizing means 11 are completed, the SVP 1 refers to the configuration bit in the power supply control table to find out which logical device among the maximum configured logical devices is configured. In this embodiment, the main power supply circuits 21, 31, 41 are connected to the CPU
It can be recognized that the CPUs 2, MMU3, IOP4 are configured in a state where the DC power supply is not supplied to the logic units of the MMUs 2, MMU3, IOP4.

〔The invention's effect〕

As described above, according to the present invention, the first power supply circuit activated by turning on the distribution board for controlling the power supply to the entire computer system, and the identification name operated by the power supply from the first power supply circuit A configuration recognizing means for providing a storage circuit and an identifier comparison circuit to each logic device, transferring the identifier to the identifier comparison circuit in the SVP, and recognizing whether or not the logic device is configured by the presence or absence of the response. Since SVP is provided, SVP in advance
The effect that the SVP can automatically recognize the configuration of the logic device without setting the configuration information in the logic, and that the DC power supply is not supplied to the entire computer system as long as power is supplied from the distribution board to the entire computer system. There is an effect that the configuration including the device can be recognized.

[Brief description of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention, FIG. 2 is a diagram showing an example of a power supply control table used for the processing of the configuration recognition means 11, and FIG. 3 is a processing of the embodiment of the configuration recognition means 11. It is a figure which shows a flow. 1 is SVP (service processor), 2 is CPU (central processing unit), 3 is MMU (main memory), 4 is IOP
(Input / output control device) 5, distribution board, 11 configuration recognition means,
Reference numeral 12 is a power supply control interface, 21, 31, 41 are main power supply circuits, 22, 32, 42 are sub power supply circuits, 23, 33, 43 are identification name storage circuits, and 24, 34, 44 are command processing circuits.

Claims (1)

[Claims] 1. A computer system comprising a service processor and a plurality of logical devices connected to the service processor, wherein a distribution board for controlling power-on of the entire computer system is provided, and A first power supply circuit which is activated in the logic device by turning on the power of the distribution board; an identification name storage circuit which is supplied with power from the first power supply circuit and stores an identification name; and the first power supply. An identification name comparison circuit which receives a power supply from a circuit, compares the identification name stored in the identification name storage circuit with the identification name given by the service processor, and returns a response to the service processor if they match, A second power supply which receives power from the first power supply circuit and supplies power to parts other than the identification name storage circuit and the identification name comparison circuit in the logic device. And the service processor transfers the identification name to the identification name comparison circuit, and recognizes whether or not the logical device corresponding to the identification name is configured by the presence or absence of the response. An apparatus configuration recognition apparatus for a computer system having.