JPS63313348A - Magnetic disk device - Google Patents
Magnetic disk deviceInfo
- Publication number
- JPS63313348A JPS63313348A JP15179987A JP15179987A JPS63313348A JP S63313348 A JPS63313348 A JP S63313348A JP 15179987 A JP15179987 A JP 15179987A JP 15179987 A JP15179987 A JP 15179987A JP S63313348 A JPS63313348 A JP S63313348A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- write
- magnetic disk
- circuit
- disk device
- 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
- 230000005856 abnormality Effects 0.000 claims abstract description 16
- 238000001514 detection method Methods 0.000 claims abstract description 12
- 230000005764 inhibitory process Effects 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 description 3
- 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、磁気ディスク装置に関し、特に環境変化によ
って起こる綽害を防止する機能を備えた磁気ディスク装
置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a magnetic disk drive, and more particularly to a magnetic disk drive having a function of preventing damage caused by environmental changes.
従来、この種の磁気ディスク装置は、環境変化により高
温になりた時のデータ保護の機能を備えていなかった。Conventionally, this type of magnetic disk device did not have a data protection function when the temperature increases due to environmental changes.
そのため、従来の磁気ディスク装置は、温度変化に伴な
う回路系などのｆ！ｉｔ吾、および媒体面の状態の変化
で正常なデータの読み出しと憎き込みができなくなると
い５欠点があった。Therefore, in conventional magnetic disk drives, f! There were five drawbacks: normal reading and writing of data could not be performed due to changes in the state of the medium surface.
本発明の磁気ディスク装置は、筐体内に設置された温度
セッサと、前記磁気ディスク装置の保障している温度と
前記温度センナによる温度とを比較し、前記磁気ディス
ク装置の保障している温度より前記温度センナによる温
度が高い場合に温度異常信号を発生する温度レベル、検
出回路と、前記温度レベル検出回路より発生した温度異
常信号によって異常を表示する表示回路と、前記温度レ
ベル検出回路より温度異常信号が入力するとデータの書
き込み禁止信号を出力する書き込み制御回路と、前記書
き込み禁止信号が入力されることにより書き込みを中止
する書込み回路とを有している。The magnetic disk device of the present invention compares the temperature guaranteed by the magnetic disk device with the temperature determined by the temperature sensor with a temperature sensor installed in the housing, and compares the temperature guaranteed by the magnetic disk device with the temperature detected by the temperature sensor. a temperature level detection circuit that generates a temperature abnormality signal when the temperature detected by the temperature sensor is high; a display circuit that displays an abnormality using the temperature abnormality signal generated by the temperature level detection circuit; It has a write control circuit that outputs a data write inhibit signal when a signal is input, and a write circuit that stops writing when the write inhibit signal is input.
次に、本発明について図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.
第１図は、本発明による磁気ディスク装置の一実施例を
示すブロック図である。FIG. 1 is a block diagram showing an embodiment of a magnetic disk device according to the present invention.
第１図において、温度上／すｌの出力である温度信号が
温度レベル検出回路２に入力される。温度レベル検出回
路２の出力である温度異常信号は表示回路３と書き込み
制御回路４に入力される。In FIG. 1, a temperature signal, which is the output of the temperature top/sl, is input to a temperature level detection circuit 2. A temperature abnormality signal output from the temperature level detection circuit 2 is input to the display circuit 3 and the write control circuit 4.
書き込み制御回路４の出力である書き込み禁止信号は、
書き込み回路５へ入力される。The write inhibit signal that is the output of the write control circuit 4 is
It is input to the write circuit 5.
第１図において、磁気ディスク装置の置かれている環境
温度を温度センサ１により関知し、環境温度の温度信号
を温度レベル検出回路２に出力する。温度レベル検出回
路２では、温度センサ１からの温度信号が前記磁気ディ
スク装置の保障している温度レベルを越えた時、温度異
常信号を出力する。温度レベル検出回路２から温度異常
信号が出力されたとき、表示回路３は外部に異常を知ら
せる。In FIG. 1, a temperature sensor 1 senses the temperature of the environment where the magnetic disk drive is placed, and outputs a temperature signal of the environment temperature to a temperature level detection circuit 2. The temperature level detection circuit 2 outputs a temperature abnormality signal when the temperature signal from the temperature sensor 1 exceeds the temperature level guaranteed by the magnetic disk drive. When the temperature level detection circuit 2 outputs a temperature abnormality signal, the display circuit 3 notifies the outside of the abnormality.
また、温度レベル検出回路２の出力である温度異常信号
は、書き込み制御回路４に入力される。Further, a temperature abnormality signal output from the temperature level detection circuit 2 is input to the write control circuit 4.
書き込み制御回路４は温度異常信号が入力されると、書
き込み禁止信号を書き込み回路５に出力し、書き込み禁
止する。When the write control circuit 4 receives the temperature abnormality signal, it outputs a write inhibit signal to the write circuit 5 to inhibit writing.
以上説明したように本発明は、温度センサにより磁気デ
ィスク装置の環境温度の上昇を知ることで、高温時の磁
気ディスク装置が正常に読み出しと書き込みができなく
なることを事前に防止できるという効果がある。As explained above, the present invention has the effect of being able to prevent the magnetic disk device from being unable to read and write normally at high temperatures by detecting the rise in the environmental temperature of the magnetic disk device using a temperature sensor. .
！１図は本発明の一実施例の磁気ディスク装置を示すプ
ロ、り図である。! FIG. 1 is a schematic diagram showing a magnetic disk device according to an embodiment of the present invention.
Claims (1)
前記磁気ディスク装置の動作可能温度と前記温度センサ
により検出された温度とを比較し前記動作可能温度より
前記温度センサによる温度が高い場合に温度異常信号を
発生する温度レベル検出回路と、前記温度レベル検出回
路より発生した温度異常信号によって異常を表示する表
示回路と、前記温度レベル検出回路より温度異常信号が
入力するとデータの書き込み禁止信号を出力する書き込
み制御回路と、前記書き込み禁止信号が入力されること
により書き込みを中止する書き込み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 temperature sensor installed inside the housing of the magnetic disk device,
a temperature level detection circuit that compares an operable temperature of the magnetic disk device with a temperature detected by the temperature sensor and generates a temperature abnormality signal when the temperature detected by the temperature sensor is higher than the operable temperature; a display circuit that displays an abnormality based on a temperature abnormality signal generated by the detection circuit; a write control circuit that outputs a data write prohibition signal when the temperature abnormality signal is input from the temperature level detection circuit; and a write control circuit to which the write prohibition signal is input. What is claimed is: 1. A magnetic disk device comprising: a write circuit that stops writing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15179987A JPS63313348A (en) | 1987-06-17 | 1987-06-17 | Magnetic disk device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15179987A JPS63313348A (en) | 1987-06-17 | 1987-06-17 | Magnetic disk device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS63313348A true JPS63313348A (en) | 1988-12-21 |
Family
ID=15526553
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15179987A Pending JPS63313348A (en) | 1987-06-17 | 1987-06-17 | Magnetic disk device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63313348A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6405277B1 (en) | 1998-11-06 | 2002-06-11 | International Business Machines Corporation | Method and system for writing data to a magnetic storage device in a relatively cold or hot environment |
-
1987
- 1987-06-17 JP JP15179987A patent/JPS63313348A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6405277B1 (en) | 1998-11-06 | 2002-06-11 | International Business Machines Corporation | Method and system for writing data to a magnetic storage device in a relatively cold or hot environment |
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