JPH0221322A - Parallel input/output control system - Google Patents

Parallel input/output control system

Info

Publication number
JPH0221322A
JPH0221322A JP63173070A JP17307088A JPH0221322A JP H0221322 A JPH0221322 A JP H0221322A JP 63173070 A JP63173070 A JP 63173070A JP 17307088 A JP17307088 A JP 17307088A JP H0221322 A JPH0221322 A JP H0221322A
Authority
JP
Japan
Prior art keywords
input
output
magnetic tape
magnetic disk
buffer
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
Application number
JP63173070A
Other languages
Japanese (ja)
Inventor
Koichi Kawaguchi
川口　孝一
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HOKKAIDO NIPPON DENKI SOFTWARE KK
NEC Solution Innovators Ltd
Original Assignee
HOKKAIDO NIPPON DENKI SOFTWARE KK
NEC Software Hokkaido Ltd
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
Application filed by HOKKAIDO NIPPON DENKI SOFTWARE KK, NEC Software Hokkaido Ltd filed Critical HOKKAIDO NIPPON DENKI SOFTWARE KK
Priority to JP63173070A priority Critical patent/JPH0221322A/en
Publication of JPH0221322A publication Critical patent/JPH0221322A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To realize the simultaneous actions of two types of input/output devices in a single task environment by controlling one of both input/output devices during the interruption processing at the end of the input/output actions. CONSTITUTION:A magnetic tape device 5 starts and ends the input/output actions via a magnetic tape action start means 2, and a magnetic tape control means 3 is started by an interruption of the end of said input/output actions. The means 3 ends the input/output actions and decides the presence or absence of a buffer permitted by a buffer control means 4. When the presence of said buffer is confirmed, the means 3 starts the next input/output actions and finishes. Thus the parallel control is attained for input/output devices. Then the data can be saved to the device 5 from a magnetic disk device 6 and then the saved data can be restored to the device 6 from the device 5.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、並列入出力制御方式に関する。[Detailed description of the invention] [Industrial application field] The present invention relates to a parallel input/output control method.

〔従来の技術〕[Conventional technology]

従来、パーソナルコンピュータにおける入出力制御方式
は、ＲＯＭにより提供される磁気ディスク制御手段を利
用するため、磁気ディスク装置との入出力時に磁気ディ
スク制御手段において磁気ディスク装置の動作終了待ち
が行なわれる。Conventionally, input/output control systems in personal computers utilize magnetic disk control means provided by a ROM, so that when inputting/outputting data to/from a magnetic disk device, the magnetic disk control means waits for the operation of the magnetic disk device to end.

このため、磁気ディスク装置および磁気テープ装置の入
出力を順次に行なう。Therefore, input/output to and from the magnetic disk device and magnetic tape device is performed sequentially.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

上述した従来の技術では、磁気ディスク装置と磁気テー
プ装置との入出力を順次行なうため、磁気テープ装置に
対する入出力の終了と開始との間に磁気ディスクに対す
る入出力が行なわれ、磁気テープ装置のストリーミング
動作ができないという欠点がある。In the conventional technology described above, input/output between the magnetic disk device and the magnetic tape device is performed sequentially, so input/output to the magnetic disk is performed between the end and the start of input/output to the magnetic tape device, and the input/output to the magnetic tape device is performed sequentially. The drawback is that streaming cannot be performed.

〔課題を解決するための手段〕[Means to solve the problem]

本発明によれば、磁気ディスク装置とのデータの入出力
を行なう磁気ディスク制御手段と、磁気テープ装置との
データの入出力を行なう磁気テープ制御手段と、磁気テ
ープ装置と磁気ディスク装置とに対して入出力を行なう
バッファの管理を行なうバッファ管理手段とを有するこ
とを特徴とする並列入出力制御方式が得られる。According to the present invention, there is provided a magnetic disk control means for inputting and outputting data to and from a magnetic disk device, a magnetic tape control means for inputting and outputting data to and from a magnetic tape device, and a magnetic tape device and a magnetic disk device. A parallel input/output control system is obtained, which is characterized in that it has a buffer management means for managing buffers that perform input/output in parallel.

〔実施例〕〔Example〕

次に、本発明の一実施例を示した図面を参照して、本発
明をより詳細に説明する。Next, the present invention will be described in more detail with reference to the drawings showing one embodiment of the present invention.

第１図を参照すると、本発明の一実施例による入出力制
御方式は、磁気ディスク装置６に対する入出力の制御を
行なう磁気ディスク制御手段１と、磁気テープ装置５に
対する入出力動作の開始を行なう磁気テープ動作開始手
段２と、磁気テープ装置５の動作終了割込みにより起動
され、入出力動作の終了処理を行なった後洗の入出力動
作の開始を行なう磁気テープ制御手段３と、磁気ディス
ク装に６に対して入出力を行なうバッファと磁気テープ
装置５に対して入出力を行なうバッファの管理を行なう
バッファ管理手段４とから構成されている。Referring to FIG. 1, the input/output control system according to an embodiment of the present invention includes a magnetic disk control means 1 that controls input/output to a magnetic disk device 6, and starts input/output operations to a magnetic tape device 5. A magnetic tape operation start means 2, a magnetic tape control means 3 which is activated by an operation end interrupt of the magnetic tape device 5 and starts the input/output operation after completing the input/output operation termination process, 6, and a buffer management means 4 that manages the buffers that perform input and output to the magnetic tape device 5.

第２図を参照すると、磁気ディスク制御手段１における
処理は、磁気テープ装置開始ステップ２１と、バッファ
有無判定ステップ２２と、磁気ディスクとの入出力処理
ステップ２３と、データ有無判定ステップ２４とからな
る。Referring to FIG. 2, the processing in the magnetic disk control means 1 consists of a magnetic tape device start step 21, a buffer presence/absence determination step 22, a magnetic disk input/output processing step 23, and a data presence/absence determination step 24. .

第３図を参照すると、磁気テープ制御手段３における処
理は、入出力動作の終了処理ステップ３１と、°バッフ
ァ有無判定ステップ３２と、入出力動作の開始処理ステ
ップ３３とからなる。Referring to FIG. 3, the processing in the magnetic tape control means 3 consists of an input/output operation termination processing step 31, a buffer presence/absence determination step 32, and an input/output operation start processing step 33.

次に、このように構成された本実施例の動作について説
明する。Next, the operation of this embodiment configured as described above will be explained.

磁気ディスクから磁気テープへの処理プログラム７によ
る複写要求により、磁気ディスク制御手段１は、磁気テ
ープ動作開始手段２に対して動作開始要求を行ない（ス
テップ２１）、磁気テープ動作開始手段２は、磁気テー
プ装置５に対して入出力動作の開始を行なう。次に、磁
気ディスク制御手段１は、バッファ管理手段４から許可
されるバッファの有無を判定しくステップ２２）、バッ
ファがあれば、磁気ディスク装置６との入出力処理を行
なう（ステップ２３）。バッファがなければ、残りデー
タ有無の判定を行なう（ステップ２４）。残りのデータ
があれば、バッファが使用可となるのを待つ。In response to a copy request from the magnetic disk to magnetic tape by the processing program 7, the magnetic disk control means 1 issues an operation start request to the magnetic tape operation start means 2 (step 21), and the magnetic tape operation start means 2 An input/output operation is started for the tape device 5. Next, the magnetic disk control means 1 determines whether there is a buffer permitted by the buffer management means 4 (step 22), and if there is a buffer, it performs input/output processing with the magnetic disk device 6 (step 23). If there is no buffer, it is determined whether there is any remaining data (step 24). If there is any remaining data, wait for the buffer to become available.

磁気テープ動作開始手段２により、入出力動作を開始し
た磁気テープ装置５が入出力動作を終了し、その終了割
込みにより、磁気テープ制御手段３が起動される。The magnetic tape device 5 that has started the input/output operation ends the input/output operation by the magnetic tape operation starting means 2, and the magnetic tape control means 3 is activated by the termination interrupt.

磁気テープ制御手段３では、入出力動作の終了処理を行
ないくステップ３１）、バッファ管理手段４から許可さ
れるバッファの有無を判定しくステップ３２）、バッフ
ァがあれば、次の入出力動作の開始処理を行ないくステ
ップ３３）、処理を終了する。The magnetic tape control means 3 performs the end processing of the input/output operation (step 31), determines whether there is a buffer permitted by the buffer management means 4 (step 32), and if there is a buffer, starts the next input/output operation. After performing the process, step 33) ends the process.

以上の動作を行なうことにより、入出力装置の並列制御
を実現し、データを磁気ディスク装置６から磁気テープ
装置５へ退避する処理および退避したデータを磁気テー
プ装置５から磁気ディスク装置６へ復旧する処理が実現
できる。By performing the above operations, parallel control of input/output devices is realized, data is saved from the magnetic disk device 6 to the magnetic tape device 5, and the saved data is restored from the magnetic tape device 5 to the magnetic disk device 6. processing can be realized.

〔発明の効果〕〔Effect of the invention〕

以上説明したように、本発明によれば、一方の入出力装
置の制御を入出力動作終了の割込み処理中に行なうこと
により、シングルタスク環境において、二種類の入出力
を同時に動作させることができる。As explained above, according to the present invention, two types of input/output can be operated simultaneously in a single-task environment by controlling one input/output device during interrupt processing for completion of input/output operation. .

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は本発明の一実施例を示す図、第２図は磁気ディ
スク制御手段における処理の流れを示すフローチャート
、第３図は磁気テープ制御手段における処理の流れを示
すフローチャートである。 １・・・磁気ディスク制御手段、２・・・磁気テープ動
作開始手段、３・・・磁気テープ制御手段、４・・・バ
ッファ管理手段、５・・・磁気テープ装置、６・・・磁
気ディスク装置、７・・・処理プログラム。 代理人　弁理士　　内　原　　晋 兇 ダFIG. 1 is a diagram showing an embodiment of the present invention, FIG. 2 is a flowchart showing the flow of processing in the magnetic disk control means, and FIG. 3 is a flowchart showing the flow of processing in the magnetic tape control means. DESCRIPTION OF SYMBOLS 1... Magnetic disk control means, 2... Magnetic tape operation start means, 3... Magnetic tape control means, 4... Buffer management means, 5... Magnetic tape device, 6... Magnetic disk Device, 7... Processing program. Agent Patent Attorney Shinsho Uchihara

Claims (1)

【特許請求の範囲】[Claims] 磁気ディスク装置とのデータの入出力を行なう磁気ディ
スク制御手段と、磁気テープ装置とのデータの入出力を
行なう磁気テープ制御手段と、磁気テープ装置と磁気デ
ィスク装置とに対して入出力を行なうバッファの管理を
行なうバッファ管理手段とを有することを特徴とする並
列入出力制御方式。A magnetic disk control means for inputting and outputting data to and from the magnetic disk device, a magnetic tape control means for inputting and outputting data to and from the magnetic tape device, and a buffer for inputting and outputting to and from the magnetic tape device and the magnetic disk device. 1. A parallel input/output control method comprising: buffer management means for managing
JP63173070A 1988-07-11 1988-07-11 Parallel input/output control system Pending JPH0221322A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63173070A JPH0221322A (en) 1988-07-11 1988-07-11 Parallel input/output control system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63173070A JPH0221322A (en) 1988-07-11 1988-07-11 Parallel input/output control system

Publications (1)

Publication Number Publication Date
JPH0221322A true JPH0221322A (en) 1990-01-24

Family

ID=15953649

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63173070A Pending JPH0221322A (en) 1988-07-11 1988-07-11 Parallel input/output control system

Country Status (1)

Country Link
JP (1) JPH0221322A (en)

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