JPH08147183A - Diagnostic controller put in/out system on live line - Google Patents

Abstract

PURPOSE: To enable the repair and exchange of a diagnostic controller without affecting the operation of an information processing system. CONSTITUTION: When any fault not to be automatically recovered is generated at a diagnostic controller 4, it is reported to a service processor 5 that this device 4 is turned to a normal operation disabled state, and the processor 5 outputs a message. When a maintenance person recognizes the necessity of the repair and exchange of the diagnostic controller 4 corresponding to this message, first of all, a command is inputted from the processor 5 for saving constitution information to a disk inside the processor. The diagnostic controller 4, that receives this command, sends the constitution information of the information processing system owned by a constitution information moving function 10 itself to the processor 5 and saves it in the disk. The constitution information moving function 10, that completely sends the constitution information, next activates a noise suppressing function 7 and the noise suppressing function 7 suppresses an active signal so as not to affect a device, which is connected to the diagnostic controller 4, because of the fluctuation of signals when inserting/ejecting the live line of the diagnostic controller 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a live line of a diagnostic control unit for performing RAS control such as fault processing, configuration control and diagnosis of each unit such as an arithmetic processing unit, an input / output processing unit and a main storage unit which control an information processing system. Regarding the mating / unmating method.

[0002]

2. Description of the Related Art Conventionally, in an information processing system composed of one diagnostic control device, a plurality of arithmetic processing devices, a plurality of input / output processing devices and a non-diagnostic control device such as a main storage device, a diagnostic control device is used. In the above, each processing such as non-diagnostic control configuration control, failure processing, startup, and diagnosis is executed. The configuration control by the diagnostic control device is performed depending on whether or not each diagnostic control signal is distributed to each non-diagnostic control device and access to another non-diagnostic control device is enabled by the signal.

[0003]

In the above-mentioned conventional information processing system, since the diagnostic control signal is distributed from the diagnostic control device to each non-diagnostic control device, a failure occurs in the diagnostic control device. There is a drawback that the operation of the information processing system must be stopped if the diagnostic control device is to be replaced because repair and replacement are required.

Therefore, the present invention aims to improve the above-mentioned drawbacks of the conventional information processing system and to enable repair and replacement of the diagnostic control device without affecting the operation of the information processing system.

[0005]

The present invention adopts the following means in order to solve the above problems.

(1) An arithmetic processing unit on the system bus,
The input / output processing device, the main storage device, the FW patrol means for detecting an error by the FW in the own device, the active signal to each device connected to the system bus when the hot swapping of the own device is performed, Noise suppressing means for suppressing, request storing means for executing a request issued to the own device from the arithmetic processing unit or the input / output processing device during hot-swap, request determination for determining whether or not there is a request from each device And a diagnostic control device having a configuration information transfer unit for saving the configuration information of the information processing system held by the device itself to the service processor and reading the configuration information from the service processor, and
A hot-swap method of a diagnostic control device in an information processing system in which the service processor is connected to the diagnostic control device.

(2) An arithmetic processing unit on the system bus,
The input / output processing device, the main storage device, the FW patrol means for detecting an error by the FW in the own device, the active signal to each device connected to the system bus when the hot swapping of the own device is performed, Noise suppressing means for suppressing, request storing means for executing a request issued to the own device from the arithmetic processing unit or the input / output processing device during hot-swap, request determination for determining whether or not there is a request from each device Means, a diagnostic control device having configuration information transfer means for transferring the configuration information of the information processing system held by itself is connected to the alternative diagnostic control device inserted in the empty slot, and the diagnostic control A hot-swap system of a diagnostic control device in an information processing system in which the service processor is connected to the device.

(3) An arithmetic processing unit on the system bus,
Input / output processing device, main memory device, patrol detection means for detecting an error by a patrol instruction from a service processor, active signal to each device connected to the system bus when hot-plugging / unplugging its own device Noise suppression means for suppressing the above, request storage means for executing a request issued to the own device from the arithmetic processing unit or the input / output processing device during hot-swap, and a request for determining the presence / absence of a request from each device A diagnostic control device having a determination means and a configuration information transfer means for saving the configuration information of the information processing system held by the device itself to the service processor and reading it from the service processor is connected, and the diagnostic control device is connected to the diagnostic control device. The operation of the diagnostic controller in the information processing system to which the service processor is connected Insertion and removal system.

(4) An arithmetic processing unit on the system bus,
Input / output processing device, main memory device, patrol detection means for detecting an error by a patrol instruction from a service processor, active signal to each device connected to the system bus when hot-plugging / unplugging its own device Noise suppression means for suppressing the above, request storage means for executing a request issued to the own device from the arithmetic processing unit or the input / output processing device during hot-swap, and a request for determining the presence / absence of a request from each device A diagnostic control unit having a configuration information transfer unit for transferring the configuration information of the information processing system held by itself is connected to the determination unit and the alternative diagnostic control unit inserted in the empty slot, and the diagnosis is performed. The hot plugging of the diagnostic controller in the information processing system to which the service processor is connected to the controller. Method.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Four embodiments of the present invention will be described with reference to the drawings.

To explain the first embodiment of the present invention, FIG. 1 is a block diagram thereof, 1 is an arithmetic processing unit, 2 is an input / output processing unit, 3 is a main memory unit, 4 is a diagnostic control unit, 11
Connected to each system bus. A service processor 5 is connected to the diagnostic control device 4. 6
Is a FW patrol function, and has a patrol function for confirming whether or not the diagnostic control device 4 inserted immediately after hot-plugging the diagnostic control device 4 is normal. Reference numeral 7 denotes a noise suppression function, which is a function of suppressing / validating an active signal that affects other devices when the diagnostic control device 4 is inserted / removed. A request storage function 8 executes a request issued from the arithmetic processing unit 1 or the input / output processing unit 2 to the diagnostic control unit 4 immediately after the failure of the diagnostic control unit 4 until the insertion / removal is completed. It is a function to do. Reference numeral 9 denotes a request determination function, which is a request issued from the arithmetic processing unit 1 or the input / output processing unit 2 to the diagnostic control unit 4 between the time when the fault occurs in the diagnostic control unit 4 and the time when insertion / removal is completed. This is a function to determine whether or not there is. Reference numeral 10 denotes a configuration information transfer function, which saves the configuration information of the information processing system held by the diagnostic control device 4 to the service processor 5 before the hot plugging / unplugging of the diagnostic control device 4 and the saved information after the plugging / unplugging. This is a function of reading the configuration information of the processing system from the service processor 5.

Next, the operation of the first embodiment of the present invention will be described. When a failure in which automatic recovery is impossible occurs in the diagnostic control device 4, the service processor 5 is notified that the normal operation disabled state has occurred due to the failure occurrence. The service processor 5 that received the notification outputs a message informing that the diagnostic control device 4 has failed. If the maintenance engineer recognizes from the message that the diagnostic control unit 4 needs to be repaired or replaced, the service processor 5 first inputs a command to save the configuration information to a disk in the service processor 5. Diagnostic control device 4 that received the command
The configuration information transfer function 10 sends the configuration information of the information processing system owned by itself to the service processor 5,
The service processor 5 saves the sent data to the disk. Configuration information transfer function 10 that has finished sending configuration information
Next activates the noise suppression function 7. The activated noise suppression function 7 suppresses the active signal in order to prevent the devices connected to the diagnostic control device 4 from being affected by signal fluctuations when the diagnostic control device 4 is hot-swapped. To do. Then, the service processor 5 is notified that the preparation for insertion / removal is completed, and a message is output. According to the message, maintenance personnel remove the faulty package and insert a maintenance package.

When the insertion / removal of the diagnostic control device 4 is completed,
Enter the restoration process start command from the service processor. Upon receiving this command, the diagnostic control device 4 executes internal diagnosis of the diagnostic control device 4 exchanged by the internal FW patrol function 6. If there is a problem in the diagnosis result, the service processor 5 is notified again that the replacement is necessary, and the service processor 5 outputs a message.

If there is no problem in the diagnosis result, the configuration information transfer function 10 reads the configuration information of the information processing system saved in the disk of the service processor 5 and takes it into the diagnostic control unit 4 to restore the state before the repair. To do. After that, the noise suppression function 7 is activated to release the active signal that has been suppressed for the device connected to the diagnostic control device 4. Then, the request judgment function 9 is activated, and the request judgment function refers to the request request flag in the main storage device 3 to issue a request from another device to the diagnostic control device between the occurrence of the failure and the completion of insertion / removal. Determine whether or not. If the request has been issued, the request storing function 8 is activated to execute the issued request.

A second embodiment of the present invention will be described. However,
The description of the same points as in the first embodiment will be omitted. Reference numeral 10 denotes a configuration information transfer function, which is a function of transferring the configuration information of the information processing system held by itself to the alternative diagnostic control device inserted in the empty slot.

Next, the operation of the second embodiment of the present invention will be described. A maintenance staff inserts an alternative diagnostic control device into an empty slot. Then, the service processor 5 inputs a command for confirming the validity of the alternative diagnosis control device. Upon receiving the command, the alternative diagnostic control device uses the internal FW
The patrol function 6 performs internal diagnosis of the alternative diagnosis control device. If there is a problem in the diagnosis result, the service processor 5 is notified again that the replacement is necessary, and the service processor 5 outputs a message.

If there is no problem in the diagnosis result, the service processor 5 gives an instruction to transfer the configuration information to the failed diagnosis control device 4. Configuration information transfer function 10
Transfers the configuration information of its own information processing system to the alternative diagnostic control device inserted in the empty slot. When the transfer is completed, the notification is sent to the service processor 5, and the service processor 5 outputs a message. After that, the faulty diagnostic control device 4 is removed, and a command for starting the recovery process is input from the service processor 5. The alternative diagnostic control device that has received the command activates the noise suppression function 7 and releases the active signal that has been suppressed to the device connected to the diagnostic control device 4.

A third embodiment of the present invention will be described. However,
The description of the same points as in the first embodiment will be omitted. Reference numeral 12 denotes a patrol detection function, which has a patrol function that is executed by an instruction from the service processor 5 in order to confirm whether or not the diagnostic control device 4 inserted immediately after hot-plugging the diagnostic control device 4 is normal.

Next, the operation of the third embodiment of the present invention will be described. When the insertion / removal of the diagnostic control device 4 is completed, a command for starting the recovery process is input from the service processor 5. Then, the service processor 5 gives an instruction to the patrol detection function 12 of the diagnostic control device 4 to perform patrol that also serves as a diagnosis between the diagnostic control device 4 exchanged with the service processor 5.

A fourth embodiment of the present invention will be described. However,
The description of the same points as in the third embodiment will be omitted. Reference numeral 10 denotes a configuration information transfer function, which is a function of transferring the configuration information of the information processing system held by itself to the alternative diagnostic control device inserted in the empty slot.

Next, the operation of the fourth embodiment of the present invention will be described. A maintenance staff inserts an alternative diagnostic control device into an empty slot. Then, the service processor 5 inputs a command for confirming the validity of the alternative diagnosis control device. Then, the service processor 5 gives an instruction to the patrol detection function 6 of the alternative diagnosis control device, and the service processor 5
And patrol that also serves as a diagnosis between the alternative diagnosis control device. If there is a problem with the patrol result, the service processor 5 is notified again that a replacement is necessary,
The service processor 5 outputs a message.

If there is no problem in the patrol result, the service processor 5 instructs the faulty diagnostic control unit 4 to transfer the configuration information. Upon receiving the instruction, the configuration information transfer function 10 transfers the configuration information of the information processing system owned by itself to the alternative diagnostic control device inserted in the empty slot. When the transfer is completed, the notification is sent to the service processor 5, and the service processor 5 outputs a message. Then, the diagnostic control device 4 that has failed
And the command for starting the recovery process is input from the service processor 5. The alternative diagnostic control device that has received the command activates the noise suppression function 7 and releases the active signal that has been suppressed to the device connected to the diagnostic control device 4.

[0023]

As described above, noise suppression is performed on other devices connected to the diagnostic control device at the time of hot-swapping, and the configuration information of the information processing system is saved.
Further, by recognizing a request from another device during insertion / removal after insertion / removal and executing the request, repair / replacement of the diagnostic control device can be performed without affecting the operation of the information processing system. This greatly improves the availability of the information processing system.

[Brief description of drawings]

FIG. 1 is a block diagram of a first embodiment of the present invention.

FIG. 2 is a block diagram of a third embodiment of the present invention.

[Explanation of symbols]

 1 arithmetic processing unit 2 input / output processing unit 3 main storage unit 4 diagnostic control unit 5 service processor 6 FW patrol function 7 noise suppression function 8 request storage function 9 request judgment function 10 configuration information transfer function 11 system bus 12 patrol detection function

Claims (4)

[Claims] 1. An arithmetic processing unit, an input / output processing unit, a main storage unit, a FW patrol means for detecting an error by an FW in its own device, and a system bus when the hot swapping of the own device is carried out. Noise suppression means for suppressing an active signal to each of the above-connected devices, request storage means for executing a request issued to the device itself from the arithmetic processing unit or the input / output processing device during hot-swap A diagnostic control device having request determination means for determining the presence / absence of a request from each device, and configuration information transfer means for saving the configuration information of the information processing system held by the device to the service processor and reading it from the service processor. Is connected, and the service processor is connected to the diagnostic control device. Hot-plugging and unplugging method of diagnostic control unit in processing system. 2. An arithmetic processing unit, an input / output processing unit, a main memory unit, a FW patrol means for detecting an error by means of an FW in the own device, and a system bus when the hot swapping of the own device is carried out. Noise suppression means for suppressing an active signal to each of the above-connected devices, request storage means for executing a request issued to the device itself from the arithmetic processing unit or the input / output processing device during hot-swap Request determining means for determining the presence / absence of a request from each device, configuration information transfer means for transferring the configuration information of the information processing system held by itself to the alternative diagnostic control device inserted in the empty slot Information processing, characterized in that a diagnostic control device having the above is connected, and the service processor is connected to the diagnostic control device. Hot-swapping method of diagnostic control device in system. 3. An arithmetic processing unit, an input / output processing unit, a main storage unit, a patrol detection unit for detecting an error on the basis of a patrol instruction from a service processor on the system bus, and the system when hot-plugging / unplugging the own device. Noise suppression means for suppressing an active signal to each device connected to the bus, request storage for executing a request issued to the device itself from the arithmetic processing unit or the input / output processing device during hot-swap Means, request determination means for determining the presence or absence of a request from each device,
A diagnostic control device having a configuration information transfer means for saving the configuration information of the information processing system held by the device itself to the service processor and reading it from the service processor is connected, and the service processor is connected to the diagnostic control device. A hot-swap system for a diagnostic control device in an information processing system characterized by being connected. 4. An arithmetic processing unit, an input / output processing unit, a main storage unit, a patrol detection means for detecting an error on the basis of a patrol instruction from a service processor on the system bus, and the system when performing hot-plugging / unplugging of its own device. Noise suppression means for suppressing an active signal to each device connected to the bus, request storage for executing a request issued to the device itself from the arithmetic processing unit or the input / output processing device during hot-swap Means, request determination means for determining the presence or absence of a request from each device,
For the alternative diagnostic control device inserted in the empty slot,
Information characterized in that a diagnostic control device having a configuration information transfer means for transferring the configuration information of the information processing system held by itself is connected, and the service processor is connected to the diagnostic control device. Hot-plugging and unplugging method of diagnostic control unit in processing system.