JPH05257854A - Computer system - Google Patents

Abstract

PURPOSE:To enable even a person who does not have the knowledge of the SCSI interface to securely structure the system. CONSTITUTION:This work station is constituted by connecting devices to which identification numbers (ID) are assigned, e.g. disk devices 6 and 7 and a tape device 8 to a CPU 1 through a SCSI controller 4, and a 1st table where driver names are registered corresponding to the device names previously is stored in the disk device 6. In this case, the CPU 1 issues request commands in order of the IDs to obtain the names of the devices connected to the SCSI controller 4, generates a 2nd table wherein the device names and IDs are made to correspond to each other, and retrieves the device names in the 1st table according to the device names in the 2nd table to derive the driver names corresponding to the IDs.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a computer system such as a workstation.

[0002]

2. Description of the Related Art Generally, a computer system such as a workstation is constructed by connecting various peripheral devices to a main body part having a built-in CPU.
When a user connects a peripheral device (when building a system), the user is given a SCSI (Small Computer S
ystem Interface) knowledge is required.

On the other hand, some users are unfamiliar with this connection, and there are many human error in the process of constructing the system, so that even a person who has no knowledge of SCSI can construct the system. Is desirable.

Conventionally, when a user who has knowledge of SCSI constructs a system such as a workstation, the user first installs in the CPU what peripheral devices (devices) such as a disk device (MD) and a tape device (MT). Consider how to connect, check the specifications of each device with a manual, etc., and perform device (actual) settings, such as switching dip switches, to match the specifications. At this time, the user must specify the driver name (software name) that supports each device.
As shown in FIG. 6, information such as a driver name and an identification number (SCS) is checked in a GENERIC file as a file for constructing the basic software (OS).
It is necessary to surely register the IID) and the device name, and recompile the registered information.

If the user makes a mistake in registering information in the GENERIC file, the system may not operate as a workstation. For example MT
However, the desired MT does not operate because the MD driver is assigned although the SCSI ID is specified.

That is, if the user makes a mistake in filing, the workstation may not operate even if the user has knowledge about SCSI.

[0007]

As described above, in the above-mentioned conventional computer system, knowledge of SCSI is required for system construction, and even if this knowledge exists for the user, the system is constructed if mistakes are made. There was a problem that I could not.

The present invention has been made to solve such a problem, and an object of the present invention is to provide a computer system which enables a person who has no knowledge of SCSI to construct a system without fail.

[0009]

In order to achieve the above-mentioned object, the computer system of the present invention uses a plurality of devices to which CPs are assigned ID numbers via a bus controller.
In a computer system connected to U and storing at least drivers supporting these devices in a predetermined device, a first driver name of the driver corresponding to device names of the plurality of devices is registered in advance.
Table, means for issuing a request command in the order of the identification number to obtain the device name of the device connected to the bus controller, and the obtained device name and the identification number are registered in association with each other. It is provided with means for creating a table and means for deriving a device name in the first table based on the device name in the second table and deriving the driver name corresponding to the identification number.

[0010]

In the present invention, when the system is started, C
Request commands are issued to each device from the PU in the order of the identification numbers. Then, the device name is transferred from the device to which the identification number is assigned, and the CPU recognizes the connected device. Subsequently, the CPU creates a second table by associating the device name with the identification number, and based on the device name in the second table, the first table is created.
The device name in the table is searched to derive the driver name corresponding to the identification number.

That is, as long as the user starts up the system, the CPU investigates what device is connected to the bus controller and loads the driver that supports that device, so that there is no user operation error. , A person who has no knowledge about SCSI can certainly build a system.

[0012]

Embodiments of the present invention will now be described in detail with reference to the drawings.

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

In the figure, 1 is a CPU (initiator) of the workstation. This CPU1 has C
A memory 3 and a SCSI controller (bus controller) 4 are connected via a PU bus 2. in this case,
Of the identification numbers SCSI ID (hereinafter referred to as ID) 0 to 7 in SCSI, ID 7 is assigned to the CPU 1. SCSI controller 4 has SCSI bus 5
Peripheral devices (devices) such as the disk devices 6 and 7 and the tape device 8 are connected through the devices, and IDs 0 to 6 are assigned to them. The disk device 6 is a system disk, and the kernel which is the OS of the workstation and the extension program are stored in the disk device 6. In this extension program, a plurality of drivers (software) for supporting various devices which can configure the system are written.

Further, in this disk device 6, as shown in FIG. 2, the driver name is registered as a first table corresponding to the device name. For example Toshiba MX3301B
Sd is registered corresponding to. A user program is stored in the disk device 7 and the tape device 8.

Next, the operation of this workstation will be described with reference to the flow chart of FIG.

In this system configuration, when the user turns on the system power of the workstation, the minimum software (OS) for starting the system is loaded from the disk device 6 through the CPU bus 2. C
PU1 starts based on the loaded software, and S1
Inquiry commands are issued in numerical order from ID 0 in order to investigate what device (target) is connected to the CSI controller 4 via the SCSI bus 5. Then, device attribute information such as Toshiba MX3301B is transferred from the device to which the ID 0 is assigned, for example, the disk device 6, and the CPU 1
Obtained this device name (step 301
), And recognizes that the disk device 6 is connected to the SCSI controller 4. After issuing the command, if there is no response, the CPU 1 waits for a predetermined time and then
Issue an Inquiry command to 1 to get the attribute information of ID 1.

The CPU 1 investigates all the IDs 0 to 6, and then, based on the acquired information, as shown in FIG.
Each device name is registered in correspondence with D 0 to 6 and a second table is created (step 302).

On the other hand, a disk device (system disk)
6 stores a first table in which a driver name is registered in association with the device name of a device capable of system configuration of this workstation, and the CPU 1 loads this first table from the disk device 6. Then, the data is expanded in the memory 3 (step 303). And CP
U1 searches the device name in the first table based on the device name in the second table and derives the driver name corresponding to each of the IDs 0 to 6, and as a result, as shown in FIG. The table is created (step 304). By creating this third table, the CPU
It becomes possible to recognize what kind of device is connected to the I controller 4 via the SCSI bus 5 and determine which driver should be loaded from the disk device 6 to support the device.

Therefore, when the system is started up, the CPU 1 is based on the third table, and based on the third table, the driver that supports the disk devices 6 and 7 and the tape device 8 connected to the SCSI bus 5 is
(d, St, Sr, etc.) are loaded from the disk device 6 and installed in the OS, and then the OS is executed (step 305). In other words, when the system starts up, C
The system is constructed by PU1.

As a result, the user can operate the disk device 7 and the tape device 8 and the like to use the user programs stored in the respective devices.

As described above, according to the computer system of this embodiment, when the system is started up, the CPU 1 makes the SCS
Since the devices connected to the I-controller 4 such as the disk devices 6 and 7 and the tape device 8 are investigated and the drivers that support these devices are installed in the OS and the OS is executed, the user should check the manual. There is no need to make registration mistakes in GENERIC files.

Therefore, even if the user does not have knowledge about SCSI, the user can surely construct the system.

[0024]

As described above, according to the computer system of the present invention, as long as the user starts the system, the CPU obtains the device name of the device connected to the bus controller and responds to the identification number. Since the driver name is derived, the user can certainly build the system even if he or she does not have knowledge about SCSI.

[Brief description of drawings]

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

FIG. 2 is a flowchart for explaining the operation of the computer system in this embodiment.

FIG. 3 is a diagram showing a table created as a SCSI ID VS device name.

[Figure 4] Device name stored in the disk device in advance
It is a figure which shows the table of VS driver name.

5 is a diagram showing a table of SCSI ID VS driver names created as a result of comparing the tables of FIG. 3 and FIG. 4;

FIG. 6 is a diagram showing a GENERIC file that has been conventionally created.

[Explanation of symbols]

1 ... CPU, 2 ... CPU bus, 3 ... Memory, 4 ... SCS
I controller, 5 ... SCSI bus, 6, 7 ... Disk device, 8 ... Tape device.

Claims (1)

[Claims] 1. A plurality of devices assigned with identification numbers
Connected to the CPU via the bus controller,
Prescribe drivers that support at least these devices
In the computer system stored in the device of
A first table in which the driver names of the bus drivers are registered in advance, request commands are issued in the order of the identification numbers, and
Get the device name of the device connected to the tracker
To register the device name obtained and the identification number
Means for creating a second table, and the first table based on the device name of the second table.
Search the device name in the table,
And a means for deriving the driver name.
Computer system to collect.