JPH01307080A - Memory medium control system in set type memory - Google Patents

Abstract

PURPOSE:To instantaneously know the obsolescence due to the secular change of an individual memory medium by recording the number of the times of an I/O error to the memory medium. CONSTITUTION:At the time of the first rise of an information processing system, a medium use upper limit registering means 1 is activated, and an I/O error frequency upper limit value is registered. At the time of starting the use of a new memory medium 4, a medium control area initializing means 3 is activated and the number of the times of the I/O error of the contents of a memory medium 4 is initialized to 0. When the medium 4 is shifted to a reading writing device 5 and the I/O error occurs, the number of the times of the error of a medium control area 44 is updated. Next, a medium use upper limit referring means 7 refers to the I/O error frequency upper limit value registered in the device 2. Continuously, a medium use upper limit value excess deciding means 8 compares the number of the times of the I/O error referred by the means 6 and the medium use upper limit value referred by the means 7. As the result, when the number of the times of the I/O error exceeds the upper limit value, an alarm message output means 9 outputs the alarm message of the effect to a system console 10.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a storage medium management method in a collective storage device used in an information processing system, etc., and in particular, the present invention relates to a storage medium management method in a collective storage device used in an information processing system, etc. The present invention relates to a storage medium management method for managing storage media in a collective storage device that is moved to read and write data.

[Conventional technology]

Conventionally, in storage medium management systems for this type of collective storage device, information indicating the history of the storage medium, such as the number of I/O (input/output) errors that have occurred in the storage medium, is not set in the storage medium itself. Ta.

[Problem to be solved by the invention]

In the conventional storage medium management method for collective storage devices described above, information indicating the history of the storage medium, such as the number of I/O errors, is not set on the storage medium itself. The disadvantage is that aging storage media cannot be detected early because the difference in deterioration over time is not known.

In view of the above-mentioned points, an object of the present invention is to provide a collective memory that allows the deterioration of individual storage media due to aging to be immediately known by registering the number of 1/O failures in the storage media. An object of the present invention is to provide a storage medium management method in a device.

[Means to solve the problem]

The storage medium management method in the collective storage device of the present invention is as follows:
In a collective storage device that includes a plurality of storage media and transfers the storage media to a read/write device for reading and writing, a medium usage upper limit value registration means for registering a media usage upper limit value in the storage device; media management area initialization means for initializing a management area, and adding the number of I/O errors that have occurred during input/output to the storage medium by the read/write device to the medium management area, and
A medium management area update reference means that refers to the number of errors; a medium use upper limit reference means that refers to the medium use upper limit registered in the storage device; a medium use upper limit value excess determination means for comparing the number of O errors with the medium use upper limit value referenced by the medium use upper limit value reference means to determine whether or not the number of I/O errors exceeds the medium use upper limit value; and warning message output means for outputting a warning message to that effect to the system operation console when the number of I/O errors is determined to have exceeded the medium use upper limit by the medium use upper limit excess determination means.

[Effect]

In the storage medium management method in the collective storage device of the present invention, the medium usage upper limit value registration means registers the medium usage upper limit value in the storage device, and the medium management area initialization means initializes the medium management area in the label part of the storage medium. The medium management area update reference means adds the number of I/O errors that occurred during input/output to the storage medium by the read/write device to the medium management area, refers to the number of I/O errors in the medium management area, and updates the medium usage. The upper limit value reference means refers to the medium use upper limit value registered in the storage device, and the medium use upper limit value excess determination means is referred to by the medium management area update reference means.■/O error' number of times and the medium use upper limit value reference means It is determined whether the number of I/O errors exceeds the upper limit value of medium use by comparing the number of I/O errors with the upper limit value of medium use referred to by the upper limit value of medium use, and the warning message output means determines the number of I/O errors by the upper limit value of medium use determination means. When it is determined that the medium usage limit has been exceeded, a warning message to that effect is output to the system console.

〔Example〕

Next, the present invention will be explained in detail with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of a storage medium management method in a collective storage device according to an embodiment of the present invention. Means 1 and medium usage upper limit value registration means l
The storage device 2 of the information processing system in which the medium usage upper limit value is registered, the medium management area initialization means 3, and the medium management area 44 (see FIG. 3) are initialized by the medium management area initialization means 3. A plurality of (one is shown) storage media 4,
A read/write device 5 that reads and writes from the storage medium 4, a medium management area update/reference means 6 that updates or refers to the medium management area 44 of the storage medium 4 via the read/write device 5, and a medium registered in the storage device 2. The medium usage upper limit value reference means 7 refers to the usage upper limit value, the number of 1/O failures referred to by the medium management area update reference means 6, and the medium usage upper limit value referred to by the medium usage upper limit value reference means 7. Compare I
The medium use upper limit value excess determination means 8 determines whether the number of /O errors exceeds the medium use upper limit value, and the medium use upper limit value excess determination means 8 determines that the number of I/O errors exceeds the medium use upper limit value. The system comprises a warning message output means 9 which outputs a warning message when a warning message is issued, and a system operation console/O on which the warning message outputted by the warning message output means 9 is displayed.

Referring to FIG. 2, the medium usage upper limit value registered in the storage device 2 is the I/O error count upper limit value.

Referring to FIG. 3, the storage medium 4 consists of a label section 41 and a data area 42, and within the label section 41 are provided a label information area 43 and a medium management area 44.

In the medium management area 44, the number of I/O errors of the storage medium 4 is set.

Next, the operation of the storage medium management system in the collective storage device of this embodiment configured as described above will be explained.

When the information processing system is started up for the first time, the medium usage upper limit value registration means 1 is activated, and the I/O error frequency upper limit value is registered in the storage device 2 as the medium usage upper limit value.

Further, when starting to use a new storage medium 4, the medium management area initialization means 3 is activated, and the label section 41 of the storage medium 4 is activated.
The medium management area 44 is secured, and the content of the number of I/O errors is initialized to O.

If an I/O error occurs when the storage medium 4 is transferred to the read/write device 5 and read/written, the medium management area update reference means 6 updates the I/O of the medium management area 44 of the storage medium 4.
Add 1 to the number of errors to update the number of I/O errors.

Next, the medium use upper limit reference means 7 refers to the I/O error frequency upper limit registered in the storage device 2 as the medium use upper limit.

Subsequently, the medium usage upper limit value excess determination means 8 compares the number of I/O errors referred to by the medium management area update reference means 6 and the medium usage upper limit value referred to by the medium usage upper limit value reference means 7. , it is determined whether the number of I/O errors exceeds the medium usage upper limit. (2) If the number of /O errors does not exceed the medium usage upper limit, control returns to the medium management area update reference means 6 and it enters a standby state.

If the number of I/O errors exceeds the medium usage upper limit, the warning message output means 9 outputs a message to the system console/O
A warning message to that effect is output to notify the operator, system administrator, etc. that the storage medium 4 has become obsolete. After this, control returns to the medium management area update reference means 6 and enters a standby state.

〔Effect of the invention〕

As explained above, the present invention sets the number of I/O errors in the medium management area of a storage medium, and compares the number of I/O errors with the medium usage upper limit registered in the storage device of the information processing system every time an I/O error occurs. By displaying a warning message on the system console for storage media whose I/O error count exceeds the upper limit for media usage, it is possible to immediately know the aging of individual storage media. This has the effect of making storage media easier to manage.

[Brief explanation of the drawing]

FIG. 1 is a block diagram showing the configuration of a storage medium management system in a collective storage device according to an embodiment of the present invention, and FIG.
FIG. 3 is a diagram for explaining the contents of the storage device in FIG. 1. FIG. 3 is a diagram for explaining the contents of the storage medium in FIG. In the figure, 1... Media usage upper limit value registration means, 2... Storage device, 3... Media management area initialization means, 4... Storage medium, 5... Reading/writing device, 6... Media management area update reference means, 7... Media use upper limit value reference means, 8... Medium use upper limit value excess determination means, 9... Warning message output means, IO... System operation console, 41...・Label part, 42...Data area, 43...Label information area, 44...Media management area.

Claims (1)

[Scope of Claims] A collective storage device that is equipped with a plurality of storage media and that reads and writes by transferring the storage media to a read/write device, comprising: a medium usage upper limit value registration means for registering a media usage upper limit value in the storage device; a medium management area initializing means for initializing a medium management area in a label portion of a medium; a medium management area update reference means for referencing the number of I/O errors in the storage device; a medium use upper limit value reference means for referencing the medium use upper limit value registered in the storage device; I/O
a medium use upper limit value excess determination means for comparing the number of errors with the medium use upper limit value referenced by the medium use upper limit value reference means to determine whether the number of I/O errors exceeds the medium use upper limit value; Warning message output means for outputting a warning message to that effect to the system operation console when the number of I/O errors is determined to have exceeded the medium use upper limit by the medium use upper limit excess determination means. A storage medium management method for a collective storage device.