JPH05100918A - Fault information preserving system for subsystem - Google Patents

Abstract

PURPOSE:To provide a fault information preserving system for a subsystem for preserving fault information in the storage means of the subsystem at the time of initialization for turning-off and turning-on the power source of the subsystem. CONSTITUTION:The subsystem 1 for executing initialization by turning off and turning on a power source is constituted of an initializing means 5 for clearing the RAM part 8 of the storage means 7 and executing the initialization of a sub-unit 4, the RAM part 8 of a storage means 7 for erasing the storage contents by the initializing means 5, the EEPROM part 9 of a storage means 7 which stores fault information and cannot erase the storage contents by the initializing means 5, and an executing means 6 which is actuated after the initialization is finished by the initializing means 5, executes a partial function in the subsystem 1, and records the fault contents detected in the course of the execution in the EEPROM part 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information processing apparatus, and more particularly to a subsystem information storage system.

[0002]

2. Description of the Related Art The conventional failure information storage method for subsystems has a function of saving failure information at the time of initialization of a system in which the subsystem power is not turned off or turned on. At the time of system initialization, power was turned off and on for all storage means of the subsystem.

[0003]

The conventional failure information storage method for a subsystem has a function of saving failure information at the time of initialization of a system that does not power off or power on the subsystem. When the subsystem to be turned on is initialized, power is turned off and turned on to all the storage means of the subsystem, so the time to collect fault information for each subunit is limited to before the subsystem is initialized. However, there is a problem that it is difficult to collect fault information after restarting the subsystem due to initialization.

[0004]

A failure information storage method for a subsystem according to the present invention is a failure information storage method for a subsystem in which initialization is performed by turning off and on a power source. An EEPROM for initial setting, a RAM section for erasing stored contents by the initial setting means, and an EEPROM for storing failure information and not erased by the initial setting means.
A storage unit including a unit and a start-up after the initialization is completed by the initialization unit, and the failure content detected during execution of a part of the functions in the subsystem is described in the EEPRO.
It is composed of a plurality of sub-units provided with execution means for recording in the M section.

[0005]

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

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

The subsystem 1 is a subsystem that incorporates the failure information storage method of the subsystem of the present invention. The subsystem initialization request means 2 composed of a button switch, a relay, etc., and the subsystem 1 of the subsystem 1 when receiving an initialization signal. The power supply to each unit is temporarily stopped, and after a certain period of time, the power supply means 3 including a power transformer for supplying power again and a stabilized power supply circuit, and the subsystem failure information storage method of the present invention are incorporated. It is composed of a plurality of subunits which are supplied with power from the power supply means 3. The sub-unit 4 clears each parameter and RAM in the sub-unit 4 when the power is turned on, and then functions of the sub-system (for example, screen display control, keyboard input control, floppy input / output control, printer print output control, etc.)
The initial setting means 5 realized by the firmware to request the execution of the subsystem and the function of the subsystem are executed, and a failure (for example, a screen display error, a keyboard input error, a floppy disk read error, a printer print error, etc.) occurs due to some factor. If you do, use this fault information as EEPRM.
It is composed of an execution unit 6 stored in the O section and a storage unit 7 accessed by the execution unit 6. The storage means 7 is composed of a RAM section 8 for clearing the stored contents by the initial setting means 5 and an EEPROM section 9 for storing the failure information by the execution means 6.

Next, the operation will be described.

A failure occurs when the execution means 6 is operating in the sub-unit 4 which shares and executes a part of the functions of the sub-system 1 (eg screen display error, keyboard input error, floppy disk read error, printer print error, etc.). When the fault is detected, the fault condition is detected by the EPEPROM section 9
To memorize. Subsequent to this failure, subsystem 1
When it is necessary to restart the device, the initialization request means 2 sends an initialization signal to the power supply means 3. The power supply means 3 that has received the initialization signal cuts off the power supply to the subsystem 1. In the subunit 4 whose power supply has been cut off, the executing means 6 does not operate and the data stored in the RAM section 8 is no longer guaranteed, but the failure information stored in the EEPROM section 9 is retained. The power supply means 3 which has cut off the power supply to the subsystem 1 again sets a certain time thereafter and then again returns to the subsystem 1
When the power is supplied to the sub unit 4, the initial setting means in the subunit 4 initializes each parameter, the execution means 6 is reset, and the RAM section 8 is cleared. However, EEPRO
The M section 9 is removed from the target of clearing. When the initial setting means 5 completes the initial setting in the subunit 4, the executing means 6 again executes the function of the subsystem 1 to be shared.

[0010]

As described above, according to the present invention, the portion for storing the failure information is the EEPROM and is not cleared when the processing is set. Therefore, the failure information is initialized when the subsystem is initialized by turning the power off and then on. Has the effect of being able to hold.

[Brief description of drawings]

FIG. 1 is a system configuration diagram comprehensively showing an embodiment of the present invention.

[Explanation of symbols]

 1 Subsystem 2 Initialization Request Means 3 Power Supply Means 4 Subunits 5 Initial Setting Means 6 Execution Means 7 Storage Means 8 RAM Section 9 EEPROM Section

Claims (1)

[Claims] 1. A failure information storage method for a subsystem that is initialized by turning off and on the power supply,
Initializing means for clearing the RAM part of the memory means and initializing the subunit, RAM part for erasing the memory contents by this initializing means, and EEPROM part for storing the failure information and not erasing the memory contents by the initializing means. And storage means including a storage means, and an execution means for starting after completion of the initialization by the initialization means, and recording in the EEPROM the failure content detected during execution of a part of the functions in the subsystem. Failure information storage method for subsystems, which is characterized by comprising a plurality of sub-units.