JPH0460958A - Magnetic disk write controller - Google Patents

Abstract

PURPOSE:To facilitate write protect for each magnetic disk and to prevent unnecessary write in advance by providing a means to set the possibility of write to the magnetic disk and a means to control write according to this set data and a state detection signal from a reject lever switch. CONSTITUTION:A write possibility/impossibility data setting means 11 for magnetic disk sets whether write to a magnetic disk 4 is enabled or disabled, and a write control means 13 outputs a control signal to enable write in the state of detecting the set state of a reject lever 5 by a reject lever switch 12 and setting the write enable data. In an automatic write enable disk unit device 14, write is enabled or disabled for each magnetic disk. Thus, it is not necessary to attach a write protect seal at all times, and the work of write to the magnetic disk can be executed efficiently without fail.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a magnetic disk write control device that automatically controls writing to magnetic disks inserted into disk units 1 to 1.

[Conventional technology]

FIG. 3 is an external view showing a conventional magnetic disk device.
In the figure, ■ is the main body of the disk unit device, 2 is a magnetic disk mounting part formed in this main body, and the magnetic disk entrance/exit part 3 of this is equipped with a rotatable eject lever to ensure the mounting of the magnetic disk 4. 5 is provided. FIG. 3(a) shows a state in which the magnetic disk 4 is taken out from the magnetic disk mounting section 2, and FIG. 3(b) shows a state in which the magnetic disk 4 is inserted into the magnetic disk mounting section 2 again from the magnetic disk entrance/exit section 3. Shows the state in which it is installed.

Further, FIG. 3(c) shows a state in which the magnetic disk 4 is set at the write position by rotating the reject lever 5 after the magnetic disk 4 is mounted.

The blowing operation will be explained using flowchart 1 in FIG. 4.

First, in order to copy files and programs to the magnetic disk 4, the power is turned on and the system is started up (step ST51). Also, reset the magnetic disk 4 (
(writable) manually or automatically.
Ask questions based on the display on the screen, etc. (Step 5T5)
2). Therefore, if the operator answers that he/she will perform manual writing using automatic/manual writing setting means such as a keyboard, the process is terminated. On the other hand, if the answer is to perform automatic manual writing, the process proceeds to the next step. That is, the magnetic disk 4 is removed by the reject lever 5.
In step 5T53), it is determined whether or not the reject lever switch has been set to 1. If so, it is determined whether the magnetic disk 4 is normal (step 5T54). That is, in this step 5T54, it is determined whether there is an abnormality such as the magnetic disk 4 being installed in the magnetic disk mounting section 2 in the opposite direction or the magnetic disk 4 not being installed.
If it is not normal, the processes from step ST53 onwards are executed again. In addition, if it is determined that the magnetic disk 4 is installed normally, it is determined whether or not a write-protection sticker (WriteProtick I) is affixed to the magnetic disk 4 (step 5T55). If so, the process from step 5T53 onwards is executed. -・way,
If the write-protection sticker is not affixed, the magnetic disk 4 is set to a writable state (step 5T5).
6). That is, a write control means (not shown) outputs a control signal to enable automatic writing to the disk unit device, and this disk unit device writes to the magnetic disk 4 mounted thereon. When writing is performed using the automatic input described above, simply by repeatedly loading the magnetic disk 4 into the disk unit device, and by cyclically repeating the processes from step ST53 to step 5T56, the writing mode is automatically entered. It happens.

[Problem to be solved by the invention]

Conventional disk unit devices are configured as shown below, so if you set the automatic write-enable mode at system startup, all magnetic disks become writable, and you can write even to magnetic disks you don't want to write to. There were issues such as leaving.

On the other hand, in order to prevent such careless writing to the magnetic disk, it is necessary to set write protection, and for example, a method of pasting a write protection sticker has been proposed. However, the work of applying the Lye I-Protect sticker is troublesome, and if you forget to apply it or there is no sticker, there is a problem that you will not be able to use the Lye I-Protect 1-.

This invention was made to solve the above problems, and it is possible to perform write protection on each magnetic disk, and even if you forget to apply a write protection sticker, unnecessary writing can be prevented. An object of the present invention is to obtain a magnetic disk write control device that can prevent the above problems.

[Means to solve the problem]

A magnetic disk write control device according to the present invention includes a writable/unwritable data setting means for setting data as to whether the magnetic disk is writable or unwritable, and a writable/unwritable data setting means for setting data on whether the magnetic disk is writable or unwritable, and a device that securely mounts the magnetic disk in a magnetic disk mounting section. A reject lever switch is provided in conjunction with the reject L-lever to detect the set state of the magnetic disk, and based on the setting data by the writable/unwritable data setting means and the state detection signal from the reject lever switch. and write control means for outputting a control signal that enables or disables writing on the magnetic disk, and the disk unit device writes on the magnetic disk in accordance with the control signal output from the write control means. It is something.

[Effect]

The write control means in the present invention sets the disk unit device to either writable or non-writable mode depending on the writable/unwritable data on the magnetic disk and the state of the reject lever switch,
This enables or disables writing for each magnetic disk in an automatically writable disk unit device.Therefore, it is no longer necessary to put a sticker on the write protector 1, making writing to the magnetic disk reliable and efficient. Make sure that it is implemented effectively.

[Embodiments of the invention]

An embodiment of the present invention will now be described with reference to the drawings.

In FIG. 1, reference numeral 11 denotes writable/unwritable data setting means for a magnetic disk such as a keyboard, which sets whether writing to the magnetic disk 4 is possible or not. 12 is a reject I/lever switch that responds to the operation of the reject lever 5, and detects whether the magnetic disk 4 is in the set state or not when the reject lever 5 is operated, and is electrically and magnetically activated. A physical or optical switching means is used. 13
is a write control means, and when the reject lever switch 12 detects the Sera I state of the reject lever 5 and the writable data is set,
Outputs a control signal to enable writing. Reference numeral 14 denotes a disk unit device, which executes writing of files and the programmer 11 on the magnetic disk 4 upon receiving the control signal to enable writing.

Next, the operation will be explained using flowchart 1- in FIG.

First, in order to copy files and programs to the magnetic disk 4, the power is turned on and the system is started up (step 5T21). Also, reset 1- of the magnetic disk 4
The user inquires whether to input the information manually or automatically through the display on the CR1 screen or the like (step 5T22). If the operator answers that the writing will be done by manual input using the automatic/manual writing setting means such as a keyboard, the process will end, but if the operator answers that it will be written by automatic input, the process will proceed to the next step. . Next, it is necessary to set whether to set writable/unwritable data on the magnetic disk 4 through the display on the CR1 screen, etc. (step 5T23), and with the writable/unwritable data setting means 11 such as a keyboard. If the answer is yes or no, proceed to the next step. That is, in step 5T, it is checked whether or not a request to set the write 1 to protect mode has been made to the magnetic disk 4 on the CR1 screen, etc.
24) If the operator answers that the protection mode is enabled for the drive 1, data is transferred to the magnetic disk 4 from the drive 1 to the drive 1.
In step 5T25), if the answer is "no", no data is set on the magnetic disk 4. Next, it is determined whether or not the reject lever 5 is set according to the state of the reject lever switch 1.2 in step 5T27.
), if it is not set, this judgment operation is repeated, and if it is set, the magnetic disk 4
It is determined whether or not it is normal (step 5T28). In other words, in this step 5T28, it is determined whether there is an abnormality such as the magnetic disk 4 being installed backwards in the magnetic disk mounting section 2 or the magnetic disk 4 not being installed, and if it is not normal, the process from step 5T23 Rerun. In addition, if it is determined that the magnetic disk 4 is normal,
It is determined whether or not a write-inhibiting sticker such as "Rye 1-Protect" is affixed to the disk (step 5T29). If so, the processing from step 5T23 onwards is executed. On the other hand, if no write-protection sticker is attached, proceed to the next step. That is, the write setting data of the magnetic disk 4 is determined, and if the data is write protected, the processing from step 5T23 onwards is executed. On the other hand, if the data is unprotected on the write 1, the magnetic disk 4 is set to a writable state (step ST
33-).

Therefore, the write control means 13 outputs a control signal to enable automatic writing to the disk unit device 14, and this disk unit device 14 writes to the magnetic disk 4 installed.

〔Effect of the invention〕

As described above, according to the present invention, the writable/unwritable data setting means sets whether to enable or disable writing to the magnetic disk,
When writing is enabled, the reject lever switch detects whether the reject I lever is in the cent state or the set state, and in the writable setting state, the reject lever switch detects that the reject lever switch is in the reject lever cera 1 to state. When detected, the disk unit device is configured to be enabled for writing by the write control means, so that writing can be reliably controlled for each magnetic disk, and unlike conventional methods,
This eliminates the need for a write protect seal, and has the effect of streamlining the writing process to the magnetic disk.

[Brief explanation of drawings]

FIG. 1 is a block connection diagram showing the configuration of a magnetic disk write control device according to an embodiment of the present invention, FIG. 2 is a flowchart explaining the operation of the magnetic disk write control device according to the present invention, and FIG. 3 is a conventional and FIG. 4, which is a block diagram showing the relationship between the main body of the disk unit device and the reject lever in the invention, is a flowchart 1- explaining the operation of the conventional magnetic disk write control device. 2 is a magnetic disk mounting part, 4 is a magnetic disk, 5 is a reject 1~lever, 11 is a writable/unwritable data setting means, 12 is a reject lever switch, 13 is a write control means, 14 is a disk 22 separator 1~ Device. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.

Claims (1)

[Claims] A writable/unwritable data setting means for setting data as to whether writing is possible or not on the magnetic disk, and a reject lever for ensuring the mounting of the magnetic disk in the magnetic disk mounting section, the above-mentioned A reject lever switch that detects the set state of the magnetic disk, and setting data from the writable/disabled data setting means and a status detection signal from the reject lever switch to enable or disable writing to the magnetic disk. A magnetic disk write control device comprising a write control means for outputting a control signal, and a disk unit device for writing on a magnetic disk according to the control signal output by the write control means.