JPS63100649A - Magnetic tape controller - Google Patents

Abstract

PURPOSE:To prevent data destruction, to protect a magnetic tape and to make control more efficient by comparing and verifying a password which is held on a magnetic tape and an inputted password. CONSTITUTION:The password A inputted from a keyboard 1 and write and read instruction B are transmitted to a CPU 2. First the password A is transmitted to a password verifying part 3 in a magnetic tape controller. The results D that the password verifying part 3 compares and verifies are transmitted to a data control part 4. If the results do not fit for the instructions B, a data E is transmitted to the magnetic tape 7. At that time information F regarding data is produced from the data E, transmitted to a display item write part 6 and displayed on the magnetic tape 7.

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to a magnetic tape control device used in a computer, and in particular performs write/read processing on a magnetic tape that is frequently used or a magnetic tape identified by an MTW number. Relating to a magnetic tape control casing.

[Conventional technology]

Conventionally, in this type of magnetic tape control stage, magnetic tape identification is based on information recorded on the magnetic tape (for example, volume I).
D, 7 isle name, etc.). The magnetic tape is managed by a person who operates the device by attaching a label with an MT number to the magnetic tape.

Also, in order to protect the data recorded on the magnetic tape, the magnetic tape has a write protect ring, and by removing this ring, writing is not possible.

[Problem that the invention seeks to solve]

The above-described conventional magnetic tape control device can freely read information from the magnetic tape, which may lead to security leaks. The write process is protected by removing the write protect ring, but if you forget to put it on or it comes off)
etc., it becomes impossible to write. Another disadvantage is that if a write protect ring is attached during the write process, other data can also be written.

Furthermore, by simply writing or reading data on conventional magnetic tapes, information about the data recorded on the magnetic tapes is stored on labels and attached to the magnetic tapes for management. There are drawbacks such as loss time.

The magnetic tape control device of the present invention solves the above-mentioned drawbacks of the conventional device by comparing and verifying passwords held in a part other than the recorded contents of the magnetic tape, and improves the efficiency of magnetic tape maintenance and management. This is an attempt to make the world a better place.

[Means for solving problems]

The magnetic tape control device of the present invention includes a data control section that controls writing and reading of data, a password access section that accesses a password holding section on the magnetic tape that holds a password for identifying the magnetic tape, and a password access section that accesses a password holding section on the magnetic tape that holds a password for identifying the magnetic tape. It has a password verification unit that compares and verifies the held password and the input password.

The magnetic tape used in the present invention includes a memory holding section for storing and holding a password for identifying the magnetic tape on a magnetic tape reel, a memory holding section for information regarding the recorded contents of the magnetic tape, and a display for displaying information regarding the recorded contents. It has a mechanism.

〔Example〕

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

FIG. 1 is a block diagram of an embodiment of the present invention, and the portions surrounded by dotted lines are included in the magnetic tape control device of the present invention.

Password A and write/read command B entered through keyboard 1 are sent to CPU 2, and first password A is sent to password verification section 3 in the magnetic tape control device. Then, the password C of the magnetic tape is sent from the magnetic tape 7 to be processed to the password verification section 3 by the breadword access section 5. The password verification section 3 sends to the data control section 4 a password comparison verification result indicating that the input password A is a writing password, a reading password, or neither. Here, if the password comparison verification result is suitable for instruction B, data E
is sent to the magnetic tape 7. At this time, information F regarding the data is created from the data E and sent to the display item writing section 6 to be displayed on the magnetic tape 7.

FIG. 2 shows a magnetic tape used in the present invention, which includes a password storage section 11, an information storage section 13 regarding data, and a display mechanism 12 inside the magnetic tape 14.

〔Effect of the invention〕

As explained above, the present invention retains information regarding passwords and data contents in a memo attached to a magnetic tape, writes write protection to the magnetic tape, and writes data to the magnetic tape unless the password matches. Since processing cannot be performed, data can be prevented from being destroyed due to incorrect MT numbers, etc., and read protection can be applied to maintain confidentiality.

Furthermore, by using a conventionally used write protect ring in parallel, data can be protected in a double manner.

Furthermore, since the information related to the data is updated and displayed during the writing process, it is possible to eliminate the need to manually label the data and at the same time prevent mistakes such as writing errors.

[Brief explanation of the drawing]

FIG. 1 is a system configuration diagram of the present invention. The portion surrounded by dotted lines is included in the magnetic tape control device. FIG. 2 is a diagram showing an example of the tape used in the present invention. 1...Keyboard, 2...CPU13
...Password verification unit, 4...Data control section, 5...Password access section, 6...
...Display item writing section, 7...Magnetic tape, A...Entered password, B...
・Write command, C...Magnetic tape password, D...Password comparison verification result, E...
...Data, F...Information regarding data content. Agent Patent Attorney Uchihara Sara””; I””x
At 4 degrees, 7.

Claims (1)

[Claims] A data control unit that controls writing and reading of data in a magnetic tape control device that writes and reads information on a magnetic tape, and a password that accesses a password holding unit on the magnetic tape that holds a password for identifying the magnetic tape. A magnetic tape control device comprising: an access section; and a password verification section that compares and verifies a password held on the magnetic tape and an input password.