JPS6325869A - Memory device - Google Patents

Abstract

PURPOSE:To control product control information and user control information without fail by recording the product control information and the user control information at the time of operation to a memory in which the writing and reading of the information can be optionally executed. CONSTITUTION:When it is discriminated at a control circuit 221 in a logic control part 26 that the transferred information is product control information, an address generating circuit 262 is accessed, a prescribed address on a memory (E<2>PROM) 25 is generated, the product control information is sent to a buffer circuit 263, and written and recorded through an information buffer circuit 263 to the prescribed place of the memory (E<2>PROM) 25. Next, when the data are written based upon an optional format formed at a user side, the control circuit 221 of the logic control part 26, by the writing instruction from a control device 1, first, refers to the product control information and the user control information recorded on the memory (E<2>PROM) 25 executes the data writing to a prescribed data area.

Description

[Detailed Description of the Invention] [Summary] A storage device that magnetically records/reproduces data in any format, which includes product management information such as the device model number, device version number, and media defect information at the time of product shipment. In order to solve the possibility that the product management information may be erased when the storage device is recorded and shipped, and the user records data in a different format, the storage device is stored in a memory that allows information to be written/read at will. By configuring to record product management information and user management information during operation, the product management information and user management information can be managed reliably and can be rewritten as desired.

[Industrial application field]

The present invention relates to a storage device that magnetically records/reproduces data in any format.

For example, when shipping a magnetic disk device as a product, the user is requested to submit management information regarding the product.

This product management information is generally written in a predetermined data format in a predetermined area on a recording medium and shipped, or is recorded on paper or the like and notified to the user.

However, for example, when a predetermined data format is written to a predetermined area on a recording medium and shipped, knee matting may occur, resulting in the product management information previously recorded on the recording medium being erased. there is a possibility.

On the other hand, when product management information is recorded on paper or the like and notified, the user needs to write and process the product management information on the recording medium each time.

It is desired to put into practical use a method that can reliably and easily manage such product management information.

[Conventional technology]

FIG. 4 is a block diagram illustrating a conventional example, and FIG. 5 is a diagram illustrating a conventional recording example of management information.

FIG. 4 shows an outline of the configuration of the magnetic disk device 2, and data writing/reading processing in the magnetic disk device 2 is carried out based on instructions from the control device 1.

The configuration of the magnetic disk device 2 is as follows: For example, an IPI interface section 21 that controls the interface with the control device l; a logic control section 22 that includes a logical control circuit that controls various processing operations of each internal functional block; and a mechanism. Writing data onto the recording medium 242 in the unit 24/
A write/read circuit 231 that performs reading processing, a positioning circuit 232 that positions the head (a) attached to the actuator 241 of the mechanism section 24 on the storage medium 242, and a servo amplifier 233 that drives the movement control of the actuator 241. an R/W servo control section 23 consisting of a servo control section 23, an actuator 241 that moves the head (al) to a predetermined position on a recording medium 242, and a mechanism section 24 consisting of a recording medium 242 that magnetically writes and records data. It is configured with the following.

For example, when writing data of a predetermined data length transferred onto the recording medium 242 in response to a data write instruction from the control device 1, processing is performed based on the following procedure.

That is, the format for the user who uses this magnetic disk device 2 is formed in advance under the instructions of the control device 1, the management information required for operation by the user is written in a predetermined position, and the format is completed. Transfer data is written and recorded in the area (data block) based on the .

At this time, along with the management information required by the user for operational purposes,
Transfer data is also written with reference to product management information.

For example, logic control is performed to determine whether or not there is a medium defect within a predetermined header on the recording medium 242 from the product management information, and if there is a medium defect, write it in another area (data block). The determination is made in section 22.

In addition, information necessary for maintaining the magnetic disk device 2 is also read from the product management information, and maintenance is performed in accordance with the product version so that the magnetic disk device 2 is always operated in the best condition. .

As described above, this product management information is recorded in the management information area (area 10) of the recording medium 242 formed in a predetermined data format, for example, at the stage of manufacturing the magnetic disk device 2.

FIG. 5 shows an example of the format, in which an ID area (bl) and a data area (C1) are formed within a predetermined length L, and the ID area (bl contains a list of media defects found during product inspection, the manufacturer's name, Product management information such as device model name, device number, manufacturing date, and shipping date is recorded and shipped.

[Problem that the invention seeks to solve]

As mentioned above, if the user side records data in the user's format on the magnetic disk drive 2 that has been shipped with product management information recorded in the manufacturer's format, the product management information will be erased and It may become impossible to read this product management information.

In addition, there is a problem in that additional man-hours are required for rewriting in order to recognize the difference in format and record this product management information in the user's format.

[Means for solving problems]

FIG. 1 shows a block diagram illustrating the invention in detail.

The principle block diagram shown in FIG. 1 shows an overview of the configuration of the magnetic disk device 2 as an example, and this configuration consists of the functional blocks 21, 23, and 24 explained in FIG. a storage means (memory) 25 which has a storage means (memory) and can arbitrarily write/read information of a predetermined capacity; a logic control circuit explained in FIG. 4; and an address generation means for generating an address for the storage means (memory) 25 , and a logic control section 26 having information storage means for temporarily storing information (management information) to be written in the storage means (memory) 25.

[Effect]

A storage means (memory) 25 in which a predetermined capacity of information can be written/read arbitrarily is provided with a product management information recording area and a user management information recording area during operation, and product management information and user management information are recorded in these areas. With this configuration, product management information and user management information can be managed reliably even when writing information in any format.
Furthermore, it becomes possible to arbitrarily revise the management information.

〔Example〕

The gist of the present invention will be specifically explained below with reference to embodiments shown in FIGS. 2 and 3.

FIG. 2 is a block diagram explaining the present invention in detail, and FIG. 3 is a diagram explaining the management information recording situation in an embodiment of the present invention. Note that the same reference numerals indicate the same objects throughout the figures.

The memory 25 of this embodiment has a data holding area that retains data even if the power supply voltage is cut off, and a writing area where data can be written. It is assumed that E"FROM is used to store the data in the data holding area.

The logic control unit 26 also includes a control circuit 221 that controls the internal operation processing of the device, an address generation circuit 262 that generates an address for the memory (E"PROM) 25 upon access by the control circuit 221, and a memory (E"FROM). 2
an information buffer circuit 263 that temporarily stores information (in particular, product management information and user management information) to be written in
and.

The product management information regarding the magnetic disk device 2 of this embodiment is input by operation of a host device (not shown), and is transferred to the logic control section 26 via the control device 1.

When the control circuit 221 in the logic control unit 26 determines that the transferred information is product management information, it accesses the address generation circuit 262 and stores it in the memory (E”FROM).
) Generate a predetermined address on 25.

Next, at the same time, the product management information is transferred to the information bar/nofa circuit 2.
63, and is written and recorded in a predetermined location of the memory (E2FROM) 25 via the information buffer circuit 263.

Note that user management information is also written in the same manner.

The third example of recording product management information recorded as described above is
As shown in the figure. That is, for example, the media defect list, manufacturer name (10) corresponds to the memory (E2FROM) 25 address.
, device model name, device number, disk enclosure (DH) model name, etc. are sequentially recorded.

Next, when writing data based on an arbitrary format formed by the user, the control circuit 221 in the logic control section 26 first records data on the memory (E'' FROM) 25 in response to a write instruction from the control device 1. The product management information and user management information stored in the computer are read out, and data is written into a predetermined data area (C) with reference to the management information.

Incidentally, when revising the product management information and the user management information, the control circuit 221 determines a command that instructs the revision of the product management information and the user management information, and the information in a predetermined area on the memory (E2FROM) 25 is revised. This will be implemented by

〔Effect of the invention〕

According to the present invention as described above, even when writing information in an arbitrary format, product management information and user management information can be reliably managed, and revisions of the management information can be arbitrarily processed. It has the effect of saying it can be done.

[Brief explanation of drawings]

FIG. 1 is a block diagram explaining the present invention in detail, FIG. 2 is a block diagram explaining the present invention in detail, FIG. 3 is a diagram explaining the management information recording situation in an embodiment of the present invention, FIG. 5 shows a block diagram explaining a conventional example, and FIG. 5 shows a diagram explaining a conventional recording example of management information. In the figure, 1 is a control device, 2 is a magnetic disk device (storage device), and 21 is an interface unit (IPI interface unit) 2
2. 26 is a logic control section, 23 is an R/W servo control section, 24 is a mechanism section, 25
is a semiconductor storage means (memory (E"FROM)), 221
is a control circuit, 231 is a write/continue circuit, 232 is a positioning circuit, 233 is a servo amplifier, 241
is an actuator, 242 is a recording medium, 262 is an address generation circuit, 2
Reference numeral 63 indicates an information buffer circuit. Nekin beating n real report 1

Claims (1)

[Scope of Claims] A storage device that records/reproduces data in an arbitrary format on a recording medium, comprising a semiconductor storage means (
25); address generating means for generating an address for the semiconductor memory means (25); information storage means for temporarily storing information to be written in the semiconductor memory means (25); and controlling operations within the device. logic control means (26) comprising means;
are provided in the storage device, and product management information at the time of manufacturing the storage device and user management information necessary for operating the storage device are stored in the semiconductor storage means (25).
A storage device that stores and manages data under the control of the logic control means (26).