JPH02118820A - Area control system for auxiliary memory - Google Patents

Abstract

PURPOSE:To facilitate an area control by using an area control program stored at the time of using a certain auxiliary memory and controlling a storing area. CONSTITUTION:When the assigning request or a releasing request of an area on an auxiliary memory 2 is executed from a user program, etc., operated on a host computer 1, an area control program control means 111 in an OS 11 reads an area control program 200 from a control information area 20 of the auxiliary memory 2 of the requesting destination to an area control program and reads it to an executing area 12 and activates the read area control program 200. Then, based on the area control mode specified beforehand, the assignment or the release on the auxiliary memory 2 is executed, the result is delivered to the area control program control means 111, the processed result is received from the area control program 200, and then, it is transferred to the user program, etc., of the requesting source.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an area management method for an auxiliary storage device used in a computer system, which manages storage area allocation, etc. of the auxiliary storage device.

[Conventional technology]

In general, supplementary notes on magnetic disk devices used in computer systems +j! For devices, file areas and unused areas are managed by the area management function of the operating system (O3), which allows users to effectively and easily allocate file areas on auxiliary storage devices. It is possible to create one. Conventionally, the area management of the auxiliary storage device as described above has been executed by an area management program built into O3 itself.

[Problem to be solved by the invention]

As mentioned above, conventionally, the area management program built into O3 itself is used to manage the area of auxiliary storage devices, so a different area management form is adopted for each auxiliary storage device for detailed management. The drawback was that it was difficult to do so.

The present invention has been made in view of these circumstances,
The purpose of the present invention is to provide an area management method for an auxiliary storage device that can easily adopt a different area management form for each individual auxiliary storage device. In order to achieve this, in an area management method for an auxiliary storage device in a computer system, an area management program that manages the storage area of the auxiliary storage device is stored in the auxiliary storage device itself, and the auxiliary storage device When the device is used, the storage area of the auxiliary storage device is managed using the area management program stored in the auxiliary storage device.

[Effect]

In the area management method for an auxiliary storage device of the present invention, each auxiliary storage device used in a computer system stores an area management program that manages the storage area of the auxiliary storage device. When the device is used, an area management program stored in the auxiliary storage device is used to manage the storage area of the auxiliary storage device.

〔Example〕

Next, embodiments of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram showing an example of a computer system to which the auxiliary storage area management method of the present invention is applied, and is composed of a host computer 1 and an auxiliary storage 2 connected thereto. .

This auxiliary storage surface 2 is an auxiliary storage device whose storage area is to be managed by the area management method of the present invention. Also,
The host computer 1 includes an auxiliary storage device initialization means 1O and an area management program control means 111.
11 and area management program loading and execution area 1
2 is provided, and the auxiliary storage device 2 has a control information area 20 in which an area management program 200 is stored.

The auxiliary storage device initialization means 10 provided in the host computer 1 generally has a function of writing an area management program that manages the area of the auxiliary storage value W2 into the auxiliary storage device 2 when initializing the auxiliary storage device 2. The storage area of the auxiliary storage device is divided into a control information area 20 such as VTOC and an area where other user files etc. are created. In this embodiment, the area management program 2 is placed in the control information area 20.
00 is stored.

Further, the area management program control means 111 provided in the OSLL of the host computer 1 controls the auxiliary storage device 2.
The area management program reading and execution area 12 is literally an area where the area management program 200 on the auxiliary storage device 2 is read and executed.

FIG. 2 is a flowchart of a processing example of the auxiliary storage device initialization means 10, and FIG. 3 is a flowchart of a processing example of the area management program control means 111 and the area management program 200. Explain the operation.

When using the auxiliary storage device 2, it is necessary to initialize it. In the present invention, the area management program 200 used in the auxiliary storage device 2 is stored in the auxiliary storage device 2 at the same time as the initialization. There is. That is, when initializing the auxiliary storage device 2, the auxiliary storage device initialization means 10 initializes the auxiliary storage device 2 as shown in FIG. An area for the area management program is secured, and the area management program 200 to be used in the auxiliary storage device 2 is written in this secured area (step s2). This completes the initialization of the auxiliary storage device 2 and makes it usable. Become.

Next, area management of the auxiliary storage device 2 is performed as follows. When a user program created on the host computer 1 issues a request to allocate or release an area on the auxiliary storage device 2, the area management program control means 111 in 03II controls the auxiliary storage device 2 that is the request destination. Loading the area management program 200 from the information area 2o and loading it into the execution area 12 (
Step 5IO), this read area management program 200 is activated (Step 511).

The activated area management program 200 allocates or releases the storage 9I area on the auxiliary storage device 2 in accordance with the above allocation request or release request based on a predetermined area management form, and controls the area management program based on the result. Step 512).

When the area management program control means 111 receives the processing result from the area management program 200, it passes it to the requesting user program (step 513), and ends the process.

As described above, area allocation requests or release requests from user programs and the like are processed, and area management of the auxiliary storage device 2 is realized.

Although not adopted in this embodiment, for example, in a system where allocation requests or release requests occur frequently, the loading of the area management program and the loading of the area management program to the execution area 12 executed in step SIO in FIG. Various additional changes can be made, such as performing read processing of 200 at the time of system initialization, making the area management program 200 resident in memory, and speeding up processing in allocation release.

〔Effect of the invention〕

As explained above, in the area management method of the auxiliary storage device of the present invention, an area management program is stored in each auxiliary storage device, and when the auxiliary storage device is used, the area stored in the auxiliary storage device is Use the management program to record the auxiliary storage device! ! Since the iI area is managed, it is possible to easily manage the area in an appropriate form that matches each auxiliary storage device.

In addition, since the area management program used to manage the area of each auxiliary storage device is stored in the auxiliary storage device itself, the correspondence between the auxiliary storage device and the area management program is clear, and it is possible to avoid using the wrong area management program. There will be no one left to do so.

Furthermore, since the area management program is removed from the O8 itself and the two are made independent, the size of the O3 can be reduced, and there is no need to be aware of the area management format of each auxiliary storage device. For this reason, for example, when revising O3, it is necessary to make the new O3 also include the area management program used in the old O8, and to determine whether each auxiliary storage device was managed by the old O8. This eliminates the need for processing such as

[Brief explanation of drawings]

FIG. 1 is a block diagram of main parts showing an example of a computer system to which the auxiliary storage device area management method of the present invention is applied; FIG. 2 is a flowchart of an example of processing by the auxiliary storage device initialization means 10; is a flowchart of an example of processing by the area management program control means 111 and the area management program 200. In the figure, 1... host computer 10... auxiliary storage device initialization means 11... operating system (O3) 12...
- Area management program reading and execution area 111... Area management program control means 2... Auxiliary storage device 20... Control information area (VTOC) 200... Area management program

Claims (1)

[Claims] In an area management method for an auxiliary storage device in a computer system, the auxiliary storage device itself stores an area management program that manages the storage area of the auxiliary storage device; An area management method for an auxiliary storage device, characterized in that, when used, the storage area of the auxiliary storage device is managed using the area management program stored in the auxiliary storage device.