JPH0635624A - Fixed magnetic disk device - Google Patents

Fixed magnetic disk device

Info

Publication number
JPH0635624A
JPH0635624A JP18903792A JP18903792A JPH0635624A JP H0635624 A JPH0635624 A JP H0635624A JP 18903792 A JP18903792 A JP 18903792A JP 18903792 A JP18903792 A JP 18903792A JP H0635624 A JPH0635624 A JP H0635624A
Authority
JP
Grant status
Application
Patent type
Prior art keywords
sector
magnetic disk
mem
data
cpu
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
JP18903792A
Other languages
Japanese (ja)
Inventor
Misao Shiina
操 椎名
Original Assignee
Nec Corp
日本電気株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

Links

Abstract

PURPOSE:To prevent the remarkable deterioration of a service life with respect to the access frequency of a whole device in the case accesses are concentrated in a specific sector in a fixed magnetic disk device. CONSTITUTION:A CPU 11 executes a program stored in a ROM 12. The CPU 11 executes the write of data or the read-out of data to an MEM 14 by an instruction from a HOST 2. In such a case, the CPU 11 counts the number of times of the access to each sector and stores it in the MEM 14. By the instruction from the HOST 2, or autonomously in a prescribed period, the CPU 11 transfers the data of the sector of high utilization frequency and the sector of low utilization frequency from the MEM 14 to a RAM 13 and subsequently, switches addresses on the medium of each sector and finally, writes the data transferred to the RAM 13 in the original sector address on the MEM 14.

Description

【発明の詳細な説明】 DETAILED DESCRIPTION OF THE INVENTION

【0001】 [0001]

【産業上の利用分野】本発明は固定磁気ディスク装置に関し、特に全セクタの使用頻度が均一化するようにセクタアドレスの配置を変更可能な使用頻度調整機能付きの固定磁気ディスク装置に関する。 The present invention relates to a fixed magnetic disk apparatus BACKGROUND OF THE, particularly to rigid magnetic disk device with changeable frequency of use adjustment function the arrangement of the sector address as the frequency of use of all sectors are equalized.

【0002】 [0002]

【従来の技術】従来の固定磁気ディスク装置では、記憶媒体をセクタ単位に区切り、各セクタにアドレス番号を割り付けてセクタ単位にデータの書込み,読出しを行っていた。 In conventional fixed magnetic disk apparatus, separate the storage medium on a sector-by-sector basis, write data into sector units by assigning an address number to each sector, it was being read.

【0003】 [0003]

【発明が解決しようとする課題】この従来の固定磁気ディスク装置は、媒体上に一度割り付けた各セクタのアドレスは媒体障害箇所に対する交替処理以外に変更されることは無いため、使用方法によって一部のセクタに使用頻度が集中した場合に、装置全体の使用頻度に対する寿命が著しく低下するという問題点があった。 [Problems that the Invention is to Solve The conventional fixed magnetic disk apparatus, since it is not the address of each sector assigned once on the medium is changed to other than the replacement process for media failure location, in part by the method used when the sector frequency of use is concentrated in, there is a problem that the lifetime is significantly reduced relative to the frequency of use of the entire device.

【0004】 [0004]

【課題を解決するための手段】本発明の固定磁気ディスク装置は、記憶媒体の全セクタの使用頻度を監視する監視手段と、この監視結果の使用頻度情報を記憶する記憶手段と、この記憶手段の記憶内容に基づいて前記全セクタの使用頻度が均一化するように前記記憶媒体上のセクタアドレスの配置を変更するセクタアドレス変更手段とを備えている。 Fixed magnetic disk device of the present invention According to an aspect of the monitoring means for monitoring the frequency of use of all the sectors of the storage medium, storage means for storing usage frequency information of the monitoring result, the storage means frequency of use of the all the sectors on the basis of the stored contents and a sector address changing means for changing the arrangement of the sector address on the storage medium so as to equalize the.

【0005】そして、前記セクタアドレス変更手段はホストコンピュータからのコマンドにより前記セクタアドレスの配置を変更するか、または自装置内で自律的に前記セクタアドレスの配置を変更するようにしてもよい。 [0005] Then, the sector address changing means may change the autonomous arrangement of the sector address in the or rearrange sector address, or the own apparatus by a command from the host computer.

【0006】 [0006]

【実施例】次に、本発明について図面を参照して説明する。 EXAMPLES Next, will be described with reference to the drawings the present invention. 図1は本発明の固定磁気ディスク装置の一実施例を示すブロック図である。 Figure 1 is a block diagram showing an embodiment of a rigid magnetic disk apparatus of the present invention.

【0007】この固定磁気ディスク装置1は中央処理装置(以下CPU)11と、CPU11にデータバスを介して接続されたワークRAM(以下単にRAM)13 [0007] The fixed magnetic disk device 1 includes a central processing unit (hereinafter CPU) 11, a work RAM (hereinafter simply RAM) which is connected via a data bus to the CPU 11 13
と、記憶媒体(以下MEM)14とを備え、RAM13 When, and a storage medium (hereinafter MEM) 14, RAM 13
はMEM14と接続されており、MEM14のセクタアドレスの変更を行う際に一時的にデータを記憶し、データの保証を可能とする。 It is connected to MEM 14, and temporarily storing data when making changes sector address of MEM 14, to enable guarantee of data. またCPU11はホストコンピュータ(以下HOST)15と接続されており、HOS The CPU11 is connected to a host computer (hereinafter HOST) 15, HOS
T15の指示によりMEM14のセクタアドレスの配置変更を行う。 By the instruction of the T15 perform the arrangement change of the sector address of MEM14. 更にCPU11はリードオンリーメモリ(以下ROM)12と接続され、ROM12にはMEM Further CPU11 is connected to the read only memory (hereinafter ROM) 12, the ROM 12 MEM
14へのデータ書込み,読出し制御やセクタアドレスの配置変更処理等,CPU11が実行すべきプログラムが格納されている。 Data writing to 14, layout change processing of the read control and the sector address, stores a program to be executed by CPU 11. 次に、本実施例の固定磁気ディスク装置のセクタアドレスの配置変更の動作について説明する。 Next, the operation of the rearrangement of the sector address of the fixed magnetic disk apparatus of this embodiment.

【0008】CPU11はROM12に格納されたプログラムを実行する。 [0008] The CPU11 executes a program stored in the ROM12. これによりCPU11はHOST1 This CPU11 is HOST1
5からの指示によりMEM14へのデータの書込みまたはデータの読出しを行う。 Indicated by read out write or data Data to MEM14 from 5. この時、CPU11は各セクタにどれだけの回数アクセスしたかのアクセス回数をカウントし、不揮発性のMEM14に記憶する。 At this time, CPU 11 counts how much the number of accesses and the number accesses to each sector, is stored in the MEM14 nonvolatile. ここでH Where H
OST15からの指示によりまたは一定周期にて自律的にCPU11は使用頻度の高いセクタと低いセクタのデータをMEM14からRAM13へ転送し、次にMEM Autonomously CPU11 with an instruction or by a fixed period from OST15 transfers data of low and frequently used sector sector from MEM14 to RAM 13, then MEM
14のそれぞれのセクタの媒体上のアドレスを入れ替え、最後にRAM13に転送されたデータをMEM14 Replacing the address on the medium of the respective sectors 14, finally the data transferred to the RAM 13 MEM 14
上の元のセクタアドレスへ書き込む。 It writes to the original sector address above. この時、セクタアドレスとデータの対応は元のままとなり、媒体上のセクタの配置が変更された形となる。 In this case, the corresponding sector address and data will remain in the original, a form of being modified arrangement of sectors on the medium. この処理を続けることにより媒体の使用頻度の均一化が可能となる。 It is possible to uniform the frequency of use of the medium by continuing this process.

【0009】 [0009]

【発明の効果】以上説明したように本発明は、固定磁気ディスク装置の記憶媒体の全セクタの使用頻度を監視し、記憶媒体上のセクタアドレスの配置を変更することにより、記憶媒体の使用頻度の均一化が可能となるので、一部のセクタにアクセス頻度が集中した場合における装置全体の使用頻度に対する寿命の著しい低下を防ぐことができるという効果を有する。 The present invention described above, according to the present invention, by monitoring the frequency of use of all the sectors of the storage medium of the fixed magnetic disk apparatus, to change the arrangement of the sector address on the storage medium, the frequency of use of the storage medium since uniformity of it becomes possible, with the effect that the access frequency to the part of the sector can be prevented a significant reduction in life for the usage of the entire device when centered.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】本発明の固定磁気ディスク装置の一実施例を示すブロック図である。 1 is a block diagram showing an embodiment of a rigid magnetic disk apparatus of the present invention.

【符号の説明】 DESCRIPTION OF SYMBOLS

1 固定磁気ディスク装置 2 ホストコンピュータ(HOST) 11 中央処理装置(CPU) 12 リードオンリーメモリ(ROM) 13 ワークRAM(RAM) 14 記憶媒体(MEM) 1 rigid magnetic disk unit 2 host computer (HOST) 11 central processing unit (CPU) 12 read only memory (ROM) 13 work RAM (RAM) 14 storing medium (MEM)

Claims (3)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 記憶媒体の全セクタの使用頻度を監視する監視手段と、この監視結果の使用頻度情報を記憶する記憶手段と、この記憶手段の記憶内容に基づいて前記全セクタの使用頻度が均一化するように前記記憶媒体上のセクタアドレスの配置を変更するセクタアドレス変更手段とを備えることを特徴とする固定磁気ディスク装置。 1. A monitoring means for monitoring the frequency of use of all the sectors of the storage medium, storage means for storing usage frequency information of the monitoring result, the frequency of use of the all the sectors on the basis of the stored contents of this storage means fixed magnetic disk apparatus characterized by comprising a sector address changing means for changing the arrangement of the sector address on the storage medium so as to equalize.
  2. 【請求項2】 前記セクタアドレス変更手段はホストコンピュータからのコマンドにより前記セクタアドレスの配置を変更することを特徴とする請求項1記載の固定磁気ディスク装置。 Wherein said sector address changing means fixed magnetic disk apparatus according to claim 1, wherein the changing the arrangement of the sector address by a command from the host computer.
  3. 【請求項3】 前記セクタアドレス変更手段は、自装置内で自律的に前記セクタアドレスの配置を変更することを特徴とする請求項1記載の固定磁気ディスク装置。 Wherein the sector address changing means, fixed magnetic disk apparatus according to claim 1, wherein altering the autonomous arrangement of the sector address in the self-device.
JP18903792A 1992-07-16 1992-07-16 Fixed magnetic disk device Withdrawn JPH0635624A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18903792A JPH0635624A (en) 1992-07-16 1992-07-16 Fixed magnetic disk device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18903792A JPH0635624A (en) 1992-07-16 1992-07-16 Fixed magnetic disk device

Publications (1)

Publication Number Publication Date
JPH0635624A true true JPH0635624A (en) 1994-02-10

Family

ID=16234244

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18903792A Withdrawn JPH0635624A (en) 1992-07-16 1992-07-16 Fixed magnetic disk device

Country Status (1)

Country Link
JP (1) JPH0635624A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010191989A (en) * 2010-04-26 2010-09-02 Hitachi Ltd Storage control system and method
US8041682B2 (en) 2004-04-09 2011-10-18 Hitachi, Ltd. Storage control system and method
US8844602B2 (en) 2008-11-21 2014-09-30 Sumitomo Electric Industries, Ltd. Method of processing terminus of optical fiber and terminus processing tool

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8041682B2 (en) 2004-04-09 2011-10-18 Hitachi, Ltd. Storage control system and method
US8433686B2 (en) 2004-04-09 2013-04-30 Hitachi, Ltd. Storage control system and method
US8812449B2 (en) 2004-04-09 2014-08-19 Hitachi, Ltd. Storage control system and method
US8844602B2 (en) 2008-11-21 2014-09-30 Sumitomo Electric Industries, Ltd. Method of processing terminus of optical fiber and terminus processing tool
JP2010191989A (en) * 2010-04-26 2010-09-02 Hitachi Ltd Storage control system and method

Similar Documents

Publication Publication Date Title
US5905993A (en) Flash memory card with block memory address arrangement
US4467421A (en) Virtual storage system and method
USRE36989E (en) Virtual storage system and method
US5625840A (en) Programmable external storage control apparatus
US6393492B1 (en) Method and arrangement for operating a mass memory storage peripheral computer device connected to a host computer
US5835930A (en) One or more logical tracks per physical track in a headerless disk drive
US5701429A (en) Method and system for maintaining concurrent data access during device upgrade
US5758191A (en) Method for buffer management in a disk drive having a first segment for storing burst data and a second segment used for write and read commands
US6021475A (en) Method and apparatus for polling and selecting any paired device in any drawer
US5765204A (en) Method and apparatus for adaptive localization of frequently accessed, randomly addressed data
US20040268070A1 (en) Method and apparatus for backing up data in virtual storage medium
US5293618A (en) Method for controlling access to a shared file and apparatus therefor
JPH05346879A (en) Data filing device
JPH05282889A (en) Nonvolatile semiconductor memory
WO1984000628A1 (en) Management of defects in storage media
US5742933A (en) Rotary memory storage device with cache control method and apparatus
JPH10187359A (en) System for storing data and method for transferring data applied to the same system
JPH06236241A (en) Hard disk device using flash memory
US6108147A (en) Selective disk partitioning/duplicating method for duplication a hard disk
JPH0567005A (en) Recording medium access system
US5025432A (en) Autochanger of writable discs including a non-volatile memory for storing most recent defect management information relating to the writable discs
US20030043627A1 (en) Internal data transfer
US4910614A (en) Disk controller for a plurality of magnetic disk drives
US7434095B2 (en) Data reconstruction method and system wherein timing of data of data reconstruction is controlled in accordance with conditions when a failure occurs
US6104555A (en) Method and device for duplicating an initial program of a hard disk drive

Legal Events

Date Code Title Description
A300 Withdrawal of application because of no request for examination

Free format text: JAPANESE INTERMEDIATE CODE: A300

Effective date: 19991005