JP3126473B2 - How to set up a computer system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a starting method of a computer system, and more particularly to a starting method for realizing a high-speed diagnostic process at the time of starting.

[0002]

2. Description of the Related Art Generally, in a general-purpose computer system, a service processor (SVP) is used.
A computer subsystem called cessor) is provided. The service processor provides various functions related to high reliability (RAS) and functions for system operation such as power-on, reset, and initial program loading by a built-in microprogram.

FIG. 7 shows a configuration of a conventional computer system using the service processor. As shown in the figure, the computer system includes a CPU 11 that executes and executes various instructions to form a data processing system device, and a service processor (SVP) 1 that performs system diagnosis and failure.
2 and an external storage device 13.

When the computer system starts up, the following operation is performed. First, SVP12
Is executed by executing an IPL routine for operating the SVP 12 to load a micro program or the like (hereinafter, referred to as an SVP-FW) including an original processing routine of the SVP 12 from the external storage device 13 and then perform a self-diagnosis in the SVP 12. Execute

[0005] In the case of normal termination, the SVP 12
By executing the P-FW, a microcode group (hereinafter, referred to as CPU-FW) for operating the instructions of the CPU 11 is loaded from the external storage device 13 to the CPU 11.
After the loading is completed, the SVP 12 activates a self-diagnosis of the CPU 11 to check whether or not the CPU 11 is operating properly. When the SVP 12 terminates normally, the CPU 11 can execute an instruction.

As described above, conventionally, the sequence at the time of the start-up process has been performed by a serial procedure such as loading of the SVP-FW, self-diagnosis of the SVP 12, loading of the CPU-FW, and self-diagnosis of the CPU 11.

In the self-diagnosis, the processing time is mostly CP
This is a main memory self-diagnosis performed by U11 or the like.
The processing time for the self-diagnosis of the main memory takes time in proportion to the installed capacity of the memory. The memory configuration of current computer systems is increasing every day.

For this reason, the conventional start-up processing sequence in which the self-diagnosis of the CPU 11 and the SVP 12 is executed serially has a disadvantage that an extremely long time is required until the system is started due to the time required for the self-diagnosis. there were.

[0009]

Conventionally, the self-diagnosis function of a plurality of devices in a computer system has been executed serially, and there has been a drawback that it takes a lot of time to start up the system.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and realizes a high-speed system start-up process by enabling a self-diagnosis of a main system unit and a self-diagnosis of a service processor to operate in parallel. The purpose is to provide a start-up method that can be used.

The present invention relates to a service processor and data monitored and controlled by the service processor.
Start-up of a computer system having a processing system
In the method , the service processor activates a self-diagnosis function of the data processing system device included in a routine for loading an initial program , and after the activation, performs a self-diagnosis of the own processor and terminates a self-diagnosis of the own processor. sometimes it is determined whether the end of the self-diagnosis function of the data processing system unit, this that at the end to start system operation for restarting the data processing said data processing system unit
And characterized.

In the method of starting the computer system, a self-diagnosis routine of the data processing system is included in a routine for loading an initial program of the service processor. The service processor activates the self-diagnosis of the data processing system, and the data processing system executes the self-diagnosis. Then, after activating the self-diagnosis of the data processing system device, the service processor performs its own self-diagnosis. As a result, the self-diagnosis processing of the main system unit and the self-diagnosis processing of the service processor are executed substantially in parallel, so that the time required for the self-diagnosis processing of the computer system is reduced, and the speed of the system startup processing is increased. It can be realized.

[0013]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows the configuration of a computer system according to an embodiment of the present invention. This computer system includes a CPU 21 which forms a data processing system device.
And system diagnostics including monitoring and control of the CPU 21
It comprises a service processor (SVP) 22 that manages a failure and an external storage device 13.

The CPU 21 executes system instructions, and receives various microcode groups (CPU-FW) necessary for self-diagnosis and system operation via a service processor (SVP) 22.

The service processor (SVP) 22
It has a function of loading a CPU-FW to the PU 21 and detecting a failure. This service processor (SV
An initial program load (IPL) routine 221 of P) 22 includes a self-diagnosis routine of the CPU 21 and has a function of transferring a CPU-FW to the CPU 21.

The external storage device 23 includes the CPU-FW described above.
And an SVP-FW, an OS, and various applications necessary for the self-diagnosis of the service processor (SVP) 22. Reference numeral 24 denotes a bus through which various FWs and the like are loaded.

FIG. 2 shows a service processor (SVP).
2 shows an example of the configuration of an initial program load (IPL) routine 221 stored in the internal ROM 22.

As shown, the initial program load (IPL) routine 221 includes a self-diagnosis routine of the CPU 21. The self-diagnosis routine of the CPU 21 has a function of loading the CPU-FW from the external storage device 23 (step S11) and a function of instructing the CPU 21 to start a self-diagnosis (step S12).

The initial program load (IPL) routine 221 includes an SVP-S necessary for performing a self-diagnosis of the service processor (SVP) 22.
The function of loading the FW from the external storage device 23 (step S13) is included. Next, with reference to the flowchart of FIG. 3, an operation procedure regarding the start of diagnosis at the time of system startup will be described.

As shown in FIG. 3, at the start of diagnosis, first, the service processor (SVP) 22
Is the initial program load (IPL) routine 2
The execution of C21 makes it necessary for C
The PU-FW is loaded into the internal RAM of the CPU 21 (Step S21). Next, the service processor (SV
P) 22 instructs the CPU 21 to start the self-diagnosis processing (step S22). This step S21, S
The processing in step S22 corresponds to steps S11 and S12 of the CPU self-diagnosis routine described in FIG. 2, and is performed by executing the initial program load (IPL) routine 221.

Thereafter, the CPU 21 starts self-diagnosis in response to a start instruction from the service processor (SVP) 22 (step S22). After the activation instruction of the CPU 21, the service processor (SVP) 22 loads the SVP-FW necessary for its own self-diagnosis from the external storage device 23 (Step S24), and starts the self-diagnosis (Step S25).

As a result, the self-diagnosis of the CPU 21 and the service processor (SVP) 22 is performed in parallel, so that the time required for diagnosis can be significantly reduced as compared with the conventional serialized self-diagnosis.

Next, the end procedure of each diagnosis will be described. This is because the end time of each device self-diagnosis varies.
This is because the service processor (SVP) 22 needs to monitor the end of each device. In this case, CPU2
The operation sequence at the end of the first diagnosis is as shown in the flowchart of FIG.

That is, when the self-diagnosis routine started by the SVP 12 ends (step S31), the CPU 21 notifies the service processor (SVP) 22 of the end status (step S32). Thereafter, the CPU 21 maintains the hold state and waits for the activation of the interrupt (steps S33, S34).

The service processor (SVP) 2
When there is an interrupt from 2, the CPU 21 is restarted,
The operation for instruction processing is started in accordance with the data processing microprogram loaded from the service processor (SVP) 22 (step S35). The operation sequence of the service processor (SVP) 22 at the end of the diagnosis is as shown in the flowchart of FIG.

When the service processor (SVP) 22 finishes loading its own SVP-FW and completing the self-diagnosis (step S41), it reads the end status of the CPU 21 from an internal register or the like (step S42).
It is determined whether the self-diagnosis has been completed (step S43).

If the self-diagnosis of the CPU 21 has been completed,
The service processor (SVP) 22 loads microprograms for various operations such as instructions from the external storage device 23, thereby causing the CPU 21 to generate an interrupt and activate the CPU 21. If CPU2
If the exit status of 1 has not been completed, the CPU 2
Wait until the self-diagnosis of 1 is completed. According to such a sequence, the CPU 21 and the service processor (SV
P) The self-diagnosis of 22 is parallelized, the operation FW is loaded, and startup is performed.

FIG. 6 shows how the self-diagnosis is parallelized. As can be seen from FIG. 6, in the startup processing of the computer system, the self-diagnosis of the CPU 21 and the self-diagnosis of the service processor (SVP) 22 are substantially performed in parallel except for the time required for loading the CPU-FW. Be executed.

As described above, in this embodiment, the self-diagnosis routine of the CPU 21 is included in the initial program load (IPL) routine 221 of the service processor (SVP) 22, and the initial program load routine 221 By starting the execution, the service processor (SVP) 22 starts the self-diagnosis of the CPU 21, and the CPU 21 executes the self-diagnosis. Then, the service processor (SVP) 22
After activating the self-diagnosis, the self-diagnosis is performed. As a result, the self-diagnosis processing of the CPU 21 and the self-diagnosis processing of the service processor (SVP) 22 are executed substantially in parallel, so that the time required for the self-diagnosis processing of the computer system is reduced, and the speed of the system start-up processing is reduced. Can be realized.

Here, the CPU 21 and the SVP 22
Although only an example of the combination of the SVP 22 has been described, if a plurality of SVP 22 are monitored, the self-diagnosis of a plurality of devices constituting the main unit and the self-diagnosis of the SVP 22 can be parallelized in the same sequence. is there.

[0032]

As described above, according to the present invention, the self-diagnosis of the main system unit and the self-diagnosis of the service processor can be performed in parallel, and the system startup processing can be speeded up.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a system configuration according to an embodiment of the present invention.

FIG. 2 is an exemplary view showing an example of the configuration of an IPL routine in the embodiment.

FIG. 3 is a flowchart for explaining a diagnosis start procedure when starting up the system in the embodiment.

FIG. 4 is a flowchart illustrating a procedure for ending a diagnosis of a CPU in the embodiment.

FIG. 5 is a flowchart illustrating a procedure for ending diagnosis of the service processor in the embodiment.

FIG. 6 is an exemplary view showing a state of parallel operation of self-diagnosis processing of a CPU and a service processor in the embodiment.

FIG. 7 is a block diagram showing a conventional system configuration.

FIG. 8 is a diagram showing an operation of a self-diagnosis process of a CPU and a service processor in the conventional system of FIG. 7;

[Explanation of symbols]

21 CPU, 22 service processor, 23 external storage device, 24 bus, 221 IPL routine.

Claims (1)

(57) [Claims] 1. A service processor and a service processor.
Monitored and controlled by SessaData processing equipment
Of a computer system havingStartup methodsmell
The service processor is an initial program row.
Of the data processing system device included in the routine ofSelf
Activate the self-diagnosis function, After this launch, Executing a self-diagnosis of the own processor, and completing the self-diagnosis of the own processor;
It is determined whether the self-diagnosis function has been completed, and upon completion, the data processing system is restarted to perform data processing.
System operation for managementCharacterizeKo
Startup of computer systemMethod.