JPH01119957A - Magnetic disk device - Google Patents
Magnetic disk deviceInfo
- Publication number
- JPH01119957A JPH01119957A JP27854587A JP27854587A JPH01119957A JP H01119957 A JPH01119957 A JP H01119957A JP 27854587 A JP27854587 A JP 27854587A JP 27854587 A JP27854587 A JP 27854587A JP H01119957 A JPH01119957 A JP H01119957A
- Authority
- JP
- Japan
- Prior art keywords
- instruction
- magnetic disk
- head
- recording
- reproducing
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 claims abstract description 6
- 238000011109 contamination Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
Landscapes
- Moving Of Head For Track Selection And Changing (AREA)
Abstract
Description
【発明の詳細な説明】
〔概要〕
コンタクト・スタート・ストップ方式ヲ用いる山気ディ
スク装置に関し、
へ、ドクラッシ、ｔ−減少させることのできる磁気ディ
スク装置の提供を目的とし、
を源投入後からの装置稼働時間を測定する測定部と）
前記測定部の測定値が所定値になったことに基づいてコ
ンタクト・スタート・ストップを指示する手段を設けて
構成する。[Detailed Description of the Invention] [Summary] The purpose of the present invention is to provide a magnetic disk device that uses a contact start-stop method and is capable of reducing the following: (a measuring unit for measuring device operating time); and means for instructing contact start/stop based on the fact that the measured value of the measuring unit reaches a predetermined value.
本発明は、コンタクト・、スタート・ストップ方式を用
いる磁気ディスク装置に関する。The present invention relates to a magnetic disk device using a contact, start-stop method.
磁気ディスク記憶装置においては、高速回転する磁気デ
ィスクと磁気ヘッドとの接触による摩耗および破損等を
免れるため、通常、磁気ディスク回転中は磁気ヘッドを
磁気ヘッド表面から数百μｍないし数μｍ浮上するよう
に設計されており、その一方式として、磁気ヘッドを磁
気ディスクに接触させたままで磁気ディスクの回転全起
動して磁気ヘッドを浮上させ、また、磁気ヘッドを磁気
ディスクから強制的に引離すことなく、山気ディスクの
回転を停止する起動停止方式、いわゆる、コンタクト・
スタニト・ストップ（Ｃ８＄ ３方式、が広く用いられ
ている。In magnetic disk storage devices, in order to avoid wear and damage caused by contact between the magnetic disk and the magnetic head, which rotates at high speed, the magnetic head is usually kept a few hundred μm to several μm above the surface of the magnetic head while the magnetic disk is rotating. One method is to fully rotate the magnetic disk while keeping the magnetic head in contact with the magnetic disk, causing the magnetic head to levitate, and without forcibly separating the magnetic head from the magnetic disk. , a start-stop method that stops the rotation of the Yamaki disc, the so-called contact
Stanite stop (C8$3 system) is widely used.
しかしながら、このＣ８Ｓ動作は、装置の電源投入後は
、電源が切断される迄行なわれない。However, this C8S operation is not performed after the power of the device is turned on until the power is turned off.
従って、電源投入時間が長時間になると磁気へヴド面に
徐々に塵埃、あるいは潤滑剤が固化して付着し、ヘッド
クラッシ＆を生じることがありた、
本発明は前述した従来の問題に鑑み、ヘッドクラッシュ
率を減少させることのできる磁気ディスク装置の提供を
目的とする。Therefore, when the power is turned on for a long time, dust or lubricant gradually solidifies and adheres to the magnetic head surface, which may cause head crashes.The present invention has been developed in view of the above-mentioned conventional problems. An object of the present invention is to provide a magnetic disk device that can reduce the head crash rate.
そして、この目的は、第１図に示されるように、コンタ
クト・スタート−ストップ方式管用いる磁気ディスク装
置であって、
電源投入後からの装置稼働時間を測定する測定部と、
前記測定部の測定値が所定値となったことに基づ−てコ
ンタクト・スタートのストップを指示する手段と、
を備えて成るＣとｔａ徴とする磁気ディスク装置により
達成される。As shown in FIG. 1, this purpose is to provide a magnetic disk device using a contact start-stop system, which includes: a measuring section that measures the operating time of the device after power is turned on; and a measurement section of the measuring section. This is achieved by a magnetic disk device having C and ta characteristics, comprising: means for instructing to stop the contact start based on the value reaching a predetermined value.
すなわち、本発明では電源投入後も所定時間が経過する
毎にＣ８Ｓ動作を行なうので、磁気ヘッドの浮上面に付
着した汚れを除去することができ、ヘッドクラッシ＆を
防、止できる。That is, in the present invention, since the C8S operation is performed every predetermined period of time even after the power is turned on, dirt attached to the air bearing surface of the magnetic head can be removed, and head crashes can be prevented.
第１ｒＩＡは本発明に係る磁気ディスク装置の一実施例
の説明図である。The first rIA is an explanatory diagram of an embodiment of a magnetic disk device according to the present invention.
図において、磁気ディスク円板１はスピンドル２に固定
されており、スピンドルモータ３により回転駆動される
。浮上式の磁気へ・ラド４はボイスコイルモータ１１に
より駆動されるキャリッジ５、アーム６によりて、磁気
ディスク円板ｌの所定位置に位置決めされて情報の記ｆ
ｉ／再生を行なう。In the figure, a magnetic disk disk 1 is fixed to a spindle 2 and rotationally driven by a spindle motor 3. A floating type magnetic disk 4 is positioned at a predetermined position on the magnetic disk disk l by a carriage 5 and an arm 6 driven by a voice coil motor 11 to record information.
i/ Perform playback.
また、スピンドルモータ３、ボイスコイルモータ１１の
駆動は制御１！Ｂ７からの駆動指示を受けて動作する駆
動回路８，９ｔ−介して行なわれる。Also, the drive of the spindle motor 3 and voice coil motor 11 is controlled by 1! This is done via drive circuits 8 and 9t which operate upon receiving a drive instruction from B7.
以上説明した構成において、制＃ｓ７は電源投入指示を
受けると、タイマ１０ｔ−起動すると共に、駆動回路８
に対して駆動指示を発する。In the configuration described above, when the control #s7 receives a power-on instruction, it starts the timer 10t and also starts the drive circuit 8.
Issues drive instructions to.
これによりスピンドルそ−・夕３が徐々に回転し、磁気
ヘッド４が所定の位置に浮上する。As a result, the spindle 3 gradually rotates, and the magnetic head 4 floats to a predetermined position.
この状態で、上位装置からの情報の記録／再生指示があ
る迄待機する。そして、その指示があった時点で１．制
御Ｗ＆７は駆動回路９に対して駆動指示を発し、磁気デ
ィスク円板ｌ上に記録／外生を行なう。In this state, it waits until there is an instruction to record/reproduce information from the host device. Then, at the time of receiving that instruction, 1. The control W&7 issues a drive instruction to the drive circuit 9 to perform recording/transfer on the magnetic disk disk l.
一方、タイマ１０が所定の稼働時間（例えば１２時間）
を計時したことを制御！ＩＳ７が判断するとｔ制６１１
８７は上位装置からの情報の記録／再生指示がないこと
を条件に、磁気ヘッド４ ｔＣ５Ｓゾーンに位置決めす
るべくボイスコイル七−夕１１ｔｌ［動するよう指示を
発すると直に、スピンドルモータ３の停止１回転を複数
回指示する。On the other hand, the timer 10 sets a predetermined operating time (for example, 12 hours)
Control that you have timed it! According to IS7, T system 611
87, on the condition that there is no information recording/reproducing instruction from the host device, the voice coil Tanabata 11tl [stops the spindle motor 3 as soon as the command to move is issued to position the magnetic head 4 in the tC5S zone. Instruct one rotation multiple times.
これにより、磁気ヘッド４はＣ８Ｓゾーンに複数回のＣ
８Ｓ動作が実行されるので、付着した汚れが除去される
。As a result, the magnetic head 4 enters the C8S zone multiple times.
Since the 8S operation is executed, the attached dirt is removed.
ま九、これと同時に、タイマｌＯを再起動する。At the same time, restart the timer IO.
このようにして、電源投入後、切断される迄の時間が長
くなっても、所定時間毎にＣ８Ｓ動作が行なわれるので
、ヘッドクラブシ、′ｆ：減少させろことができる。In this way, even if it takes a long time after the power is turned on until it is turned off, the C8S operation is performed at predetermined intervals, so that the head scrubbing can be reduced.
以上説明したように、本発明によれば、磁気ディスク装
置を連続的に稼働状態としている場合であっても、所定
の稼働時間毎にＣ８Ｓ動作を行なうようにしているので
、ヘッドクラッシ島を減少させることができる。As explained above, according to the present invention, even when the magnetic disk drive is in continuous operation, the C8S operation is performed every predetermined operation time, so head crash islands are reduced. can be done.
詔１図は本発明の一実施例の説明図である。
■中、１は磁気ディスク円板、４は磁気ヘッド、７は制
御部、】０はタイマである。Figure 1 is an explanatory diagram of an embodiment of the present invention. (1) In the figure, 1 is a magnetic disk disk, 4 is a magnetic head, 7 is a control unit, and ]0 is a timer.
Claims (1)
スク装置であって、 電源投入後からの装置稼働時間を測定する測定部と、 前記測定部の測定値が所定値となったことに基づいてコ
ンタクト・スタート・ストップを指示する手段と、 を備えて成ることを特徴とする磁気ディスク装置。[Claims] A magnetic disk device using a contact start-stop method, comprising: a measuring section that measures the operating time of the device after power is turned on; and when the measured value of the measuring section reaches a predetermined value. 1. A magnetic disk drive comprising: means for instructing contact start/stop based on the contact information.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27854587A JPH01119957A (en) | 1987-11-04 | 1987-11-04 | Magnetic disk device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27854587A JPH01119957A (en) | 1987-11-04 | 1987-11-04 | Magnetic disk device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01119957A true JPH01119957A (en) | 1989-05-12 |
Family
ID=17598751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27854587A Pending JPH01119957A (en) | 1987-11-04 | 1987-11-04 | Magnetic disk device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01119957A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5371637A (en) * | 1991-12-18 | 1994-12-06 | Nec Corporation | Disk apparatus |
| US5793553A (en) * | 1996-04-19 | 1998-08-11 | International Business Machines Corporation | Method and assembly for increasing storage device reliability |
| US7440218B2 (en) | 2006-05-19 | 2008-10-21 | Fujitsu Limited | Charge remover for magnetic disk |
-
1987
- 1987-11-04 JP JP27854587A patent/JPH01119957A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5371637A (en) * | 1991-12-18 | 1994-12-06 | Nec Corporation | Disk apparatus |
| US5793553A (en) * | 1996-04-19 | 1998-08-11 | International Business Machines Corporation | Method and assembly for increasing storage device reliability |
| US7440218B2 (en) | 2006-05-19 | 2008-10-21 | Fujitsu Limited | Charge remover for magnetic disk |
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