JPH03229331A - Information processor - Google Patents

Abstract

PURPOSE:To constitute this processor so that even if one disk device is broken down, it can be switched automatically to the other disk device by providing a nonvolatile storage part for storing the IMPL equipment number and the IPL equipment number, and rewriting the contents of the nonvolatile storage part, when a fault is generated in one of the disks for constituting a duplexing system. CONSTITUTION:When a control part 12 detects a fact that one of disk devices 3, 4 is broken down, the equipment number of an IMPL (initial microprogram load) disk device and the equipment number of an IPL (initial program load) disk device are stored automatically in a nonvolatile storage part 11. Consequently, since the equipment number of the IMPL disk device and the equipment number of the IPL disk device are stored automatically in the nonvolatile storage part 11, the control part 12 can know the equipment number of the disk to be stored in the next time. In such a manner, even if one disk switch 3 is broken down, it can be switched automatically to the other disk device 4.

Description

[Detailed Description of the Invention] [Summary] An object of the present invention is to provide an operating system for an information processing device that employs a redundant system so that even if one disk device is destroyed, it can be automatically switched to the other disk device. system and the first one for the redundant system.
and a second disk, a non-volatile storage section that stores IMPL and IPL machine numbers, and a control section that controls the disk device and the non-volatile storage section, and the control section is configured to control the disk device when any one of the disk devices is destroyed. When it is detected that the IMPL disk device number and IP
The configuration is configured to automatically store the L disk device machine number.

[Industrial Application Field] The present invention relates to an information processing device that employs a redundant system, and more specifically, to an information processing device that automatically stores a disk machine number when a disk with an IMPL or IPL machine number is destroyed. Regarding equipment.

2. Description of the Related Art In recent years, OA systems have become popular for computer systems such as attendance management, accounting, financial management, etc., and a highly reliable disk duplication system is required. For this reason, various redundant systems are provided, but if the system storage disk is destroyed due to a failure etc.
It is necessary to set up information on devices, etc. that will be restarted at the end of the business.

[Prior Art J Figure 4 is a conceptual diagram of the configuration of a conventional system. In the figure, 1 is an operating system (O8), 2 is a control unit, and 34 is a disk constituting a duplex system. When the power is turned on, the control unit 2 executes an initialization program when the power is turned on, and performs IMPL (initial micro program load) and IPL (initial program rot). As a result, control is transferred to O81,
Normal processing is performed under the control of O8.

Here, if either of the disk devices 3 and 4 in use is destroyed for some reason, the duplex system shown in the figure stops operating. At this time, an operator such as a customer engineer (CE) changed the model number of the system storage disk, changed the disk to be used, and restarted the system.

[Problems to be Solved by the Invention] Therefore, when the system storage disk of a duplex system is destroyed, it takes time to start up the system again, which poses a problem that hinders business operations.

The present invention has been made in view of such problems, and provides an information processing device that can automatically switch to the other disk device even if one disk device is destroyed. The purpose is to

1 is a block diagram of the principle of the present invention. Components that are the same as those in FIG. 4 are designated by the same reference numerals. In the figure, 10
is the operating system (O5), 3.4 is the first and second disk for the duplex system, and 11
is a non-volatile storage unit in which the IMPL and IPL machine numbers are stored,
12 is the disk device 3.4 and the nonvolatile storage section 11;
This is a control unit that controls the The non-volatile storage unit 11 stores the IMPL machine number and IPL machine number at the time of system startup.

Disks 3 and 4 are system storage disks constituting a duplex system, and store IMPL, IPL programs, and an operating system. The control unit 12 performs read/write control on the disks 3 and 4 from software and recognizes the occurrence of errors from the disks 3 and 4.

[Effect 1: When it is detected that either the control unit 12 or the disk devices 3 and 4 has been destroyed, the IMP is stored in the non-volatile storage unit 11.
The L disk device machine number and IPL disk device machine number are automatically stored.

As a result, the IMPL disk device model number and the IPL disk device device number are automatically stored in the nonvolatile storage unit 11-, so that the control unit]2 knows the model number of the disk to be stored next. It is also possible to automatically switch to another normal disk device.

[Example] Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

FIG. 2 is a block diagram showing an embodiment of the present invention. Components that are the same as those in FIG. 1 are designated by the same reference numerals. As the non-volatile storage unit 1], for example, a battery-operated RAM is used. 20 is an IMPL unit that performs IMPL at system start-up, and 21 is an operator panel that allows access to the non-volatile storage unit.

The non-volatile storage unit 11 contains the IMPL machine number 1l-aIPL
A machine number 11b, a disk 1 machine number 11c which is a redundant system machine number, a disk 2 machine number lid, etc. are stored.

Hereinafter, disk 3 will be referred to as disk 1 and disk 4 will be referred to as disk 2. And IMPL machine number 11. It is assumed that disk 1 is stored in fPL machine number 11b.

The operation of the system configured as described above will be explained below with reference to the flowchart shown in FIG.

When the system starts up, the IMPL unit 20 reads data (disk l) from the IMPL machine number 11a stored in the nonvolatile storage unit 11 (Sl), and executes IMPL according to the device machine number (S2). When the IMPL operation is completed, control is then transferred to the control section 12.

The control unit 12 controls the I stored in the non-volatile storage unit 1.
Read the PL machine number 1 l b (S3) and enter the device machine number (
An IPL operation is performed according to disk 1) (S4).

As a result, O8O loading is performed. As a result, 0510. The control unit 12 and disk 1 operate, and O8
It enters regular operation (normal operation) under the control of (S5).

Here, it is assumed that a failure occurs in the disk 1 during normal operation. When the control unit 12 detects destruction of the disk 1,
Read the disk 1 model number 11C and the disk 2 model number lid to determine the machine number to be set (S6), and then
Store disk 2 in L machine number 11a, and store disk 2 in IPL machine number 11b.
, and change the IMPL machine number and IPL machine number (S7). It also reports to 0810 that the disk 1 has been destroyed (S8).

This allows the IMP to be stored in the non-volatile storage unit 11 even when restarting after the work is finished and the power is turned off.
Since the L machine number 11a and the IPL machine number 11b are stored, the system can be automatically started up without any special post-processing at the end of business.

In the embodiments described above, a case has been described in which data is set in the nonvolatile storage unit 11 at the time of system startup. However, the present invention is not limited to this, and the IMPL machine number and IPL machine number can be changed by arbitrarily rewriting using the operator panel 21 (see FIG. 2).

[Effects of the Invention] As explained above in detail, according to the present invention, a non-volatile storage unit for storing the IMPL machine number and the IPL machine number is provided, and when a failure occurs in one of the disks constituting the duplex system, By configuring the content of the nonvolatile storage section to be rewritten, it is possible to provide an information processing device that can automatically switch to the other disk device even if one disk device is destroyed.

[Brief explanation of drawings]

Fig. 1 is a block diagram of the principle of the present invention, Fig. 2 is a block diagram of a configuration showing an embodiment of the present invention, Fig. 3 is a flowchart showing the operation of the present invention, and Fig. 4 is a conceptual diagram of the configuration of a conventional system. be. In FIG. 1, 3.4 is a disk, 10 is an operating system, 11 is a non-volatile storage section, and 12 is a control section. Figure 1: Block diagram of the principle of the present invention Figure 1: Configuration hook diagram showing the present invention - Guest service 1 Figure 2: Flowchart showing the operation of the present invention: Figure 3

Claims (1)

[Claims] An operating system (10), first and second disks (3) for a duplex system, (
4) and a non-volatile storage unit (1) that stores the IMPL and IPL machine numbers.
1), the disks (3), (4) and the non-volatile storage section (11);
), the control unit (11
) detects that one of the disk devices (3) and (4) has been destroyed, the non-volatile storage unit (11)
An information processing device configured to automatically store an IMPL disk device machine number and an IPL disk device machine number.