JPH04168658A - Magnetic disk device - Google Patents
Magnetic disk deviceInfo
- Publication number
- JPH04168658A JPH04168658A JP29589990A JP29589990A JPH04168658A JP H04168658 A JPH04168658 A JP H04168658A JP 29589990 A JP29589990 A JP 29589990A JP 29589990 A JP29589990 A JP 29589990A JP H04168658 A JPH04168658 A JP H04168658A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic disk
- rotation
- disk device
- magnetic
- read
- 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 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、コンピュータシステムにおいて外部記憶装置
として使用する磁気ディスク装置に関し、特に、磁気ヘ
ッドと磁気ディスクの摺動による信頼性の低下を防止す
るように改良した磁気ディスク装置に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a magnetic disk device used as an external storage device in a computer system, and in particular, to a magnetic disk device that prevents a decrease in reliability due to sliding between a magnetic head and a magnetic disk. The present invention relates to a magnetic disk device improved as described above.
［従来の技術］
従来の磁気ディスク装置は、電源を入れると、磁気ディ
スクが回転し、電源を切るまで、磁気ディスクが回転し
ていたので、常に磁気ディスクと磁気ヘッドが摺動して
いた。[Prior Art] In a conventional magnetic disk device, when the power is turned on, the magnetic disk rotates, and the magnetic disk continues to rotate until the power is turned off, so that the magnetic disk and the magnetic head are always sliding.
［発明が解決しようとする課題］
上述した従来の磁気ディスク装置は、電源を入れると磁
気ディスクが回転し、電源を切るまで回転するので、読
み取り書き込みを長時間行なわないときでも、磁気ディ
スクと磁気ヘッドが摺動しているので、磁気ディスクと
磁気ヘッドの耐久性と信頼性が低下するという欠点があ
る。[Problems to be Solved by the Invention] In the conventional magnetic disk device described above, the magnetic disk rotates when the power is turned on and continues to rotate until the power is turned off. Since the head is sliding, there is a drawback that the durability and reliability of the magnetic disk and magnetic head are reduced.
［課題を解決するための手段］
本発明の磁気ディスク装置は、読み取り、書き込みを所
定時間行なわないとき、記録媒体としての磁気ディスク
の回転を停止させるタイマー回路と、前記磁気ディスク
の回転の停止後に読み取り書き込み命令を発行して前記
磁気ディスクを回転させ、前記読み取り書き込み命令の
処理を行なう動作回路とを具備することを特徴とする特
［実施例コ
次に本発明について図面を参照して説明する。[Means for Solving the Problems] The magnetic disk device of the present invention includes a timer circuit that stops the rotation of a magnetic disk as a recording medium when no reading or writing is performed for a predetermined period of time, and a timer circuit that stops the rotation of the magnetic disk after the rotation of the magnetic disk is stopped. Embodiment Next, the present invention will be described with reference to the drawings. .
第１図は本発明の一実施例のブロック図である。FIG. 1 is a block diagram of one embodiment of the present invention.
タイマー回路１は、読み取り書き込みが所定の時間行な
われなかったとき、磁気ディスクの回転停止命令を出し
、それを磁気ディスク装置２に送る。The timer circuit 1 issues a command to stop rotation of the magnetic disk when no reading or writing is performed for a predetermined period of time, and sends the command to the magnetic disk device 2.
回転停止命令を受けた磁気ディスク装置２は磁気ディス
ク３の回転を停止させる。それ以降、読み取り書き込み
命令６を発行すると、動作回路５により、磁気ディスク
３の回転と読み取り書き込み命令６の処理の実行指令を
磁気ディスク装置２に送る。その命令を受けた磁気ディ
スク装置２は、磁気ディスク３を回転させ、磁気ヘッド
４よりデータの読み取り書き込みを行なう。また読み取
り書き込み命令６を受けたタイマー回路工はタイマーを
リセットする。The magnetic disk device 2 that receives the rotation stop command stops the rotation of the magnetic disk 3. After that, when the read/write command 6 is issued, the operating circuit 5 sends an instruction to the magnetic disk device 2 to rotate the magnetic disk 3 and execute the process of the read/write command 6. Upon receiving the command, the magnetic disk device 2 rotates the magnetic disk 3 and reads and writes data using the magnetic head 4. Further, the timer circuit engineer who receives the read/write command 6 resets the timer.
［発明の効果］
以上説明したように本発明は、データの読み取り書き込
みを所定時間行なわないとき、磁気ディスクの回転を停
止することにより、磁気ディスクと磁気ヘッドの摺動時
間が少なくなり、耐久性。[Effects of the Invention] As explained above, the present invention stops the rotation of the magnetic disk when data is not read or written for a predetermined period of time, thereby reducing the sliding time between the magnetic disk and the magnetic head, thereby improving durability. .
信頼性を向上ができる効果を奏する。This has the effect of improving reliability.
第１図は本発明の一実施例のブロック図である。
１・・・タイマー回路、２・・・磁気ディスク装置、３
・・・磁気ディスク、４・・・磁気ヘッド、５・・・動
作回路、６・・・読み取り書き込み命令。FIG. 1 is a block diagram of one embodiment of the present invention. 1... Timer circuit, 2... Magnetic disk device, 3
. . . magnetic disk, 4 . . . magnetic head, 5 . . . operating circuit, 6 . . . read/write command.
Claims (1)
体としての磁気ディスクの回転を停止させるタイマー回
路と、前記磁気ディスクの回転の停止後に読み取り書き
込み命令を発行して前記磁気ディスクを回転させ、前記
読み取り書き込み命令の処理を行なう動作回路とを具備
することを特徴とする磁気ディスク装置。A timer circuit that stops the rotation of a magnetic disk as a recording medium when no reading or writing is performed for a predetermined period of time, and a timer circuit that issues a read/write command to rotate the magnetic disk after the rotation of the magnetic disk stops, 1. A magnetic disk device comprising an operation circuit that processes instructions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29589990A JPH04168658A (en) | 1990-11-01 | 1990-11-01 | Magnetic disk device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29589990A JPH04168658A (en) | 1990-11-01 | 1990-11-01 | Magnetic disk device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04168658A true JPH04168658A (en) | 1992-06-16 |
Family
ID=17826598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29589990A Pending JPH04168658A (en) | 1990-11-01 | 1990-11-01 | Magnetic disk device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04168658A (en) |
-
1990
- 1990-11-01 JP JP29589990A patent/JPH04168658A/en active Pending
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