JPH02281447A - Life control system for magnetic tape medium - Google Patents

Abstract

PURPOSE:To perform more accurate life control nearly without requiring operator's man-hours by counting the number of times of loading of a magnetic tape medium on a magnetic tape driving part and indicating that the number of times of loading reaches a specific number. CONSTITUTION:A reference frequency storage circuit 401 is stored with the reference frequency of loading of the magnetic tape medium 101 and a loading frequency recording circuit 202 counts how many times the magnetic tape medi um 101 is loaded on the magnetic tape medium driving part 100 and records it on the magnetic tape medium 101. Then a decision circuit 201 decides whether or not the number of times of loading recorded on the magnetic tape medium 101 is equal to the reference frequency of loading stored in the reference fre quency storage circuit 401 and when it is decided that the number of times of loading reaches the reference frequency, an indicator lamp 501 indicates that the number of times of loading reaches the reference frequency. Consequent ly, the life period can accurately be controlled almost without requiring operator's man-hours.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a magnetic tape medium life management system for managing the medium life of a magnetic tape medium used in a magnetic tape device.

(Prior Art) A magnetic tape medium has a certain lifespan because it is subjected to drag due to contact with a magnetic head and mechanical stress for moving the tape.

Therefore, it is necessary to manage the lifespan of magnetic tape media.

Conventionally, this lifespan management has been carried out by writing the start time of the magnetic tape medium on the reel of the magnetic tape medium and manually managing its lifespan (usage period).

(Problems to be Solved by the Invention) As mentioned above, in the conventional magnetic tape media lifespan management system, the lifespan of each magnetic tape medium is managed manually, so that ■ Differences in the frequency of use of individual media Performing detailed management requires a large number of man-hours and is complicated, and (2) errors in life management may prevent data from being correctly read and written to magnetic media. As described above, there are problems that need to be solved in the conventional life management system for magnetic tape media.

The present invention has been made in consideration of these circumstances, and its purpose is to provide a lifespan management system for magnetic tape media that is more accurate and requires almost no manpower.

(Means for Solving the Problems) In order to achieve the above object, the magnetic tape medium life management system of the present invention writes data to a magnetic tape medium loaded in a magnetic tape drive unit, A magnetic tape device that reads written data includes a standard number storage circuit that stores a standard number of times the magnetic tape medium is loaded, and a circuit that counts the number of times the magnetic tape medium is loaded into the magnetic tape screw drive section. a loading number recording circuit for recording on the magnetic tape medium; and a determination unit for determining whether the loading number recorded on the magnetic tape screw is equal to the reference loading number stored in the reference number storage circuit. and a display circuit that displays, when the determination circuit determines that the number of loadings is equal to the reference number, that the number of loadings has reached the reference number.

(Function) In the magnetic tape medium life management system of the present invention,
A reference number storage circuit stores a reference number of times a magnetic tape medium is loaded, and a loading number recording circuit counts the number of times a magnetic tape medium is loaded into a magnetic tape medium drive section and records it on the magnetic tape medium. Then, the determination circuit determines whether the number of loadings recorded on the magnetic tape medium is equal to the reference number of loadings stored in the reference number storage circuit, and it is determined that the number of loadings is equal to the reference number of times. Then, the display circuit displays that the number of times of loading has reached the reference number of times.

(Example) Next, an example of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a block diagram of an embodiment of the present invention. In the figure, 100 is a magnetic tape drive unit, 101 is a magnetic tape medium loaded in the magnetic tape drive unit 100, 102 is a take-up reel, 201 is a control circuit, and 202 is a magnetic tape medium 101 via a magnetic head 204. 301 is a drive circuit that controls the drive motor 302 that moves the magnetic tape medium 10.1 and the take-up reel 102; 401 is a drive circuit that drives the magnetic tape medium 101 to the magnetic tape drive section 100; Reference storage circuit 501 stores the allowable number of loading and unloading operations (this is referred to as the standard loading number); 501 is the magnetic tape medium 101;
This is an indicator lamp that indicates that the number of loading times has reached the standard number of loading times.

FIG. 2 shows the loading number recording area of the magnetic tape medium 101. The data is BOT (Beginning-
of-tape marker) and EOT (End-
of-tape marker), and the number of loading times is recorded in area A in front of the BOT.

The operation of the embodiment of the present invention will be explained below using each country.

First, an operator loads the magnetic tape medium 101 into the magnetic tape drive section 100. Then, the control circuit TI@201 instructs the drive circuit 301 to rotate the drive motor 302. The drive circuit 301 receives this instruction and rotates the drive motor 302. Then, the magnetic tape medium 101 is wound up by the take-up reel 102. At this time, the magnetic tape medium 101 is
and sensor 205.

Then, when the BOT shown in FIG. Report that BOT has been detected.

The control circuit 201 receives this report, and the drive circuit 30
1 to stop driving the drive motor 302. Then, the drive circuit 301 is instructed to run the magnetic tape medium 101 by a predetermined length in the opposite direction, that is, from the winding wheel 102 toward the magnetic tape medium 101, and to position the magnetic tape medium 101 so that the area A is located on the magnetic head 204. do. Next, the control circuit 201 instructs the read/write circuit 202 to read the number of loadings stored in area A. Upon receiving this instruction, the read/write circuit 202 reads the number of times of loading via the magnetic head 204 and passes it to the control circuit 201.

The control circuit 201 reads and writes the reference number of loadings from the reference storage circuit 401, compares the reference number of loadings with the number of loadings, and performs the following processing.

(2) Standard number of loading times>Number of loading times In such a case, the control circuit 201 instructs the drive circuit 301 to run the magnetic tape medium 101 in the reverse direction again and position the magnetic head 204 at the beginning of area A. Then, add “+” to the loading count read from area A.
The read/write circuit 202 is instructed to record the number of loading times as the new loading number in area A. The read/write circuit 202 that has received this instruction records the number of loadings in the area A via the magnetic head 204 ■Reference number of loadings ≦ Number of loadings When the number of loadings reaches the reference number in this way, the control circuit 201 lights up the display lamp 501 to notify the operator.

(Effects of the Invention) As explained above, the magnetic tape medium life management system of the present invention counts the number of times the magnetic tape medium is loaded into the magnetic tape drive unit, and the number of loading times reaches a predetermined number. When this is reached, it is displayed on the display means. Therefore, by adopting the magnetic tape medium lifespan management method of the present invention, the lifespan can be managed more accurately and with almost no manual labor required.

[Brief explanation of drawings]

FIG. 1 is a block diagram of an embodiment of the present invention, and FIG. 2 is a diagram showing an example of the contents of a magnetic tape medium. DESCRIPTION OF SYMBOLS 100... Magnetic tape drive part, 101... Magnetic tape medium, 102... Winding reel, 201... Control circuit, 202... Reading/writing circuit, 203... BOT
Detection circuit, 204... Magnetic head, 205... Sensor, 301... Drive circuit, 302... Drive motor,
401... Reference storage circuit, 501... Display lamp. of

Claims (1)

[Scope of Claims] In a magnetic tape device that writes data to a magnetic tape medium loaded in a magnetic tape drive unit and reads data written on the magnetic tape medium, a reference number of loading times of the magnetic tape medium is determined. a reference number storage circuit for storing; a loading number recording circuit for counting and recording on the magnetic tape medium the number of times the magnetic tape medium has been loaded into the magnetic tape medium drive unit; a determination circuit that determines whether the number of loading times is equal to a reference number of loadings stored in the reference number storage circuit; and when the determination circuit determines that the number of loadings is equal to the reference number of times, the number of loadings 1. A lifespan management system for a magnetic tape medium, comprising: a display circuit for displaying that the number of times that has reached the reference number of times has been reached.