JPS60204050A - Error recovering system of input/output device - Google Patents

Error recovering system of input/output device

Info

Publication number
JPS60204050A
JPS60204050A JP59059901A JP5990184A JPS60204050A JP S60204050 A JPS60204050 A JP S60204050A JP 59059901 A JP59059901 A JP 59059901A JP 5990184 A JP5990184 A JP 5990184A JP S60204050 A JPS60204050 A JP S60204050A
Authority
JP
Japan
Prior art keywords
input
output device
error
code
data processing
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
JP59059901A
Other languages
Japanese (ja)
Inventor
Hideyuki Ishii
秀之 石井
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP59059901A priority Critical patent/JPS60204050A/en
Publication of JPS60204050A publication Critical patent/JPS60204050A/en
Pending legal-status Critical Current

Links

Landscapes

  • Debugging And Monitoring (AREA)

Abstract

PURPOSE:To execute a recovery processing of an input/output device without using sense information, by outputting an error recovery processing code based on a code table, when an error is generated. CONSTITUTION:An input/output device 1 is provided with a code table 11, and a code is mentioned in accordance with the contents of an error of the input/output device 1. Said each code is an address of the recovery processing contents executed by a data processing device 2, and when an error is generated by the input/output device 1, the error is converted to a code by referring to the code table 11, and this code is sent to the data processing device 2. The data processing device 2 operates a retrieving part 25 based on this code, retrieves a processing table 26 for storing the recovery processing contents, and outputs the processing contents.

Description

【発明の詳細な説明】 (al 発明の技術分野 本発明はデータ処理装置が入出力装置にて発生したエラ
ーの回復処理を行う際の入出力装置のエラー回復方式の
改善に関するものである。
DETAILED DESCRIPTION OF THE INVENTION Technical Field of the Invention The present invention relates to an improvement in an error recovery method for an input/output device when a data processing device performs recovery processing for an error occurring in the input/output device.

(bl 技術の背景と従来技術の問題点データ処理装置
と入出力装置とから構成され、データの処理を行うシス
テムが数多く用いられており、データ処理に効果を発揮
している。
(bl Background of the Technology and Problems of the Prior Art) Many systems are used to process data, each consisting of a data processing device and an input/output device, and are effective in data processing.

此のシステムを使用する際に、入出力装置にエラーが発
生すると」般に、第1図に示すように、データ処理装置
2が入出力装置1の発生したエラーの回復を行う。即ち
、入出力装置1から送られてくる入出力装置1の状況を
示す状況ビット(以後センス情報と記す)をデータ処理
装置2は入出力処理部21に受け、入出力処理部21は
解析部22を作動して、センス情報からエラー原因を見
いだす。
When using this system, if an error occurs in the input/output device, the data processing device 2 generally recovers from the error that has occurred in the input/output device 1, as shown in FIG. That is, the data processing device 2 receives the status bit (hereinafter referred to as sense information) indicating the status of the input/output device 1 sent from the input/output device 1 to the input/output processing unit 21, and the input/output processing unit 21 22 to find the cause of the error from the sense information.

例えば、入出力装置1そのものが悪いことが原因であれ
ば、装置交換処理部23を作動して装置交換を行った後
に、再試行部24にて再試行を行わせる。若し、交換を
必要としない原因であれば、再試行部24を作動して再
試行を入出力装置1に行わせる。
For example, if the cause is that the input/output device 1 itself is defective, the device replacement processing section 23 is activated to perform device replacement, and then the retry section 24 is caused to perform a retry. If the cause does not require replacement, the retry section 24 is activated to cause the input/output device 1 to perform a retry.

従来は上記説明した方法が用いられており、従ってデー
タ処理装置2は、センス情報を一々解析して、原因を探
求する必要があり、解析処理にデ−タ処理装置が使用さ
れ、データ処理装置の効率が悪く成ると共に、誤解析に
基づく誤ったエラー回復処理を行うと言った欠点があっ
た。
Conventionally, the method described above has been used, and therefore the data processing device 2 needs to analyze the sense information one by one to find the cause. This method has disadvantages in that it becomes inefficient and performs incorrect error recovery processing based on incorrect analysis.

to) 発明の目的 以上の欠点に対処するために、本発明はセンス情報を用
いずに入出力装置の回復処理が行え、従って、解析を行
う必要がなく効率が良い、然も信頼度高いエラー回復の
処理が行える入出力装置のエラー回復方式を提供するこ
とを目的とするものである。
to) In order to deal with the drawbacks that are more than the purpose of the invention, the present invention can perform recovery processing of input/output devices without using sense information, and therefore, there is no need to perform analysis, which is efficient and highly reliable. The purpose of this invention is to provide an error recovery method for input/output devices that can perform recovery processing.

fd) 発明の構成 上記目的は、入出力装置のエラー発生を状況ビットに依
ってデータ処理装置に伝え、該データ処理装置が前記状
況ビットを判断してエラー回復処理を行うシステムに於
いて、前記入出力装置にコードテーブルを設け、該コー
ドテーブルにエラー回復処理コードとエラーとの対応を
記載し、前記入出力装置がエラー発生に依って前記コー
ドテーブルに基づき前記エラー回復処理コードを出力し
てデータ処理装置がエラー回復処理を行う本発明の入出
力装置のエラー回復方式によって達成される。
fd) Structure of the Invention The above object is to provide a system in which the occurrence of an error in an input/output device is notified to a data processing device using a status bit, and the data processing device judges the status bit and performs error recovery processing. A code table is provided in the input/output device, a correspondence between error recovery processing codes and errors is written in the code table, and the input/output device outputs the error recovery processing code based on the code table depending on the occurrence of an error. This is achieved by the error recovery method of the input/output device of the present invention in which the data processing device performs error recovery processing.

即ち、データ処理装置が行う入出力装置のエラー回復処
理コードを入出力装置が出力することによって行われ、
データ処理装置にての判断処理が不要となる。
That is, it is performed by the input/output device outputting an error recovery processing code for the input/output device performed by the data processing device,
Judgment processing in the data processing device becomes unnecessary.

tel 発明の実施例 以下、本発明の実施例を図に依って詳細に説明する。tel Embodiments of the invention Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

第2図は本発明による入出力装置のエラー回復方式を説
明するための一実施例のブロック図であ不。尚お第1図
と同一個所は同符合を用いる。
FIG. 2 is a block diagram of an embodiment for explaining an error recovery method for an input/output device according to the present invention. Note that the same parts as in FIG. 1 are given the same reference numerals.

入出力装置lにはコードテーブル11が設けてあり、此
のコードテーブル11には、入出力装置1のエラー内容
に対応してコードが図に示すように記載されている。此
の各コードは、データ処理装置2が行う回復処理内容の
アドレスである。従って、入出力装置lがエラーを発生
するとコードテーブル11を参照してエラーをコードに
変換して、此のコードをデータ処理装置2に送る。
The input/output device 1 is provided with a code table 11, and in this code table 11, codes corresponding to the error contents of the input/output device 1 are written as shown in the figure. Each of these codes is an address of the content of the recovery process performed by the data processing device 2. Therefore, when the input/output device 1 generates an error, it refers to the code table 11, converts the error into a code, and sends this code to the data processing device 2.

データ処理装置2はコードに基づいて、検索部25を作
動して回復処理内容を格納する処理テーブル26を検索
して処理内容を出力する。此の処理内容には、装置交換
を要するものには、例えば論理値”0°が付してあり、
装置交換不要のものには、論理値Il+が付しである。
Based on the code, the data processing device 2 activates the search unit 25 to search the processing table 26 that stores the recovery processing details and outputs the processing details. For example, a logical value of "0°" is attached to the processing contents that require device replacement.
Those that do not require device replacement are marked with a logical value Il+.

従って、ゲート回路部27によって、装置交換を不要と
する処理内容は直接1F試行部24を作動せしめ、装置
交換を要する処理内容は、装置交換処理部23を介して
入出力装置交換後に、再試行を行う。
Therefore, the gate circuit unit 27 directly activates the 1F trial unit 24 for processing content that does not require device replacement, and retrying the processing content that requires device replacement after input/output device replacement via the device replacement processing unit 23. I do.

上記したコードは従来のセンス情報の一部に設げてあり
、従来のセンス情報は、入出力装置のエラー回復処理以
外の処理に、従来と異なることなく使用されることは君
うまでもない。
The above-mentioned code is provided as a part of the conventional sense information, and it goes without saying that the conventional sense information can be used for processing other than error recovery processing of the input/output device without being different from the conventional one.

(fl 発明の効果 以上詳細に説明したように本発明の入出力装置のエラー
回復方式は、センス情報を用いずに、入出力装置の回復
処理が行え、従って、データ処理装置は解析を行う必要
がなく効率良くなる利点がある。
(fl Effects of the Invention As explained in detail above, the error recovery method of the input/output device of the present invention can perform recovery processing of the input/output device without using sense information. Therefore, the data processing device does not need to perform analysis. This has the advantage of being more efficient.

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

第1図は従来の入出力装置のエラー回復方式のブロック
図、第2図は本発明による入出力装置のエラー回復方式
を説明するための一実施例のブロック図である。 図に於いて、1は入出力装置、2はデータ処理装置、1
1はコードテーブル、24は再試行処理部をそれぞれ示
す。
FIG. 1 is a block diagram of a conventional error recovery method for an input/output device, and FIG. 2 is a block diagram of an embodiment for explaining the error recovery method for an input/output device according to the present invention. In the figure, 1 is an input/output device, 2 is a data processing device, 1
Reference numeral 1 indicates a code table, and 24 indicates a retry processing unit.

Claims (1)

【特許請求の範囲】[Claims] 入出力装置のエラー発生を状況ピントに依ってデータ処
理装置に伝え、該データ処理装置が前記状況ビットを判
断してエラー回復処理を行うシステムに於いて、前記入
出力装置にコードテーブルを設け、該コードテーブルに
エラー回復処理コードとエラーとの対応を記載し、前記
入出力装置がエラー発生に依って前記コードテーブルに
基づき前記エラー回復コードを出力してデータ処理装置
がエラー回復処理を行うことを特徴とする入出力装置の
エラー回復方式。
In a system in which the occurrence of an error in an input/output device is transmitted to a data processing device depending on the status focus, and the data processing device judges the status bit and performs error recovery processing, a code table is provided in the input/output device, A correspondence between an error recovery processing code and an error is recorded in the code table, and the input/output device outputs the error recovery code based on the code table upon occurrence of an error, and the data processing device performs the error recovery process. An error recovery method for input/output devices characterized by:
JP59059901A 1984-03-27 1984-03-27 Error recovering system of input/output device Pending JPS60204050A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59059901A JPS60204050A (en) 1984-03-27 1984-03-27 Error recovering system of input/output device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59059901A JPS60204050A (en) 1984-03-27 1984-03-27 Error recovering system of input/output device

Publications (1)

Publication Number Publication Date
JPS60204050A true JPS60204050A (en) 1985-10-15

Family

ID=13126482

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59059901A Pending JPS60204050A (en) 1984-03-27 1984-03-27 Error recovering system of input/output device

Country Status (1)

Country Link
JP (1) JPS60204050A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02105947A (en) * 1988-08-31 1990-04-18 Internatl Business Mach Corp <Ibm> Computer surrounding subsystem and exception event automatic detecting analyzing method
JPH0594326A (en) * 1991-09-04 1993-04-16 Fujitsu Ltd Adapter processing system at time of bus trouble detection
JP2009187405A (en) * 2008-02-07 2009-08-20 Sharp Corp Control system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02105947A (en) * 1988-08-31 1990-04-18 Internatl Business Mach Corp <Ibm> Computer surrounding subsystem and exception event automatic detecting analyzing method
JPH0594326A (en) * 1991-09-04 1993-04-16 Fujitsu Ltd Adapter processing system at time of bus trouble detection
JP2009187405A (en) * 2008-02-07 2009-08-20 Sharp Corp Control system

Similar Documents

Publication Publication Date Title
JPH06250906A (en) Backup/recovery system for data developed in main storage device
CN111290881B (en) Data recovery method, device, equipment and storage medium
JPS60204050A (en) Error recovering system of input/output device
US20050076006A1 (en) Task oriented log retrieval utilizing a self-learning search tool
JPH0498329A (en) Fault recovery system
JPS6349805B2 (en)
JPH02257348A (en) Information processor
JPS5938852A (en) Fault processing system
JPH07152497A (en) Disk control device
JP3231864B2 (en) Task degeneration management device
JPS58182761A (en) Data checking system
JPS61213945A (en) Control system for memory trouble
JPH03191437A (en) Data processor
JPS62194557A (en) File trouble recovery system
JPH0468450A (en) Fault data logging system
JPH05314017A (en) Data recovering system
JPH04123142A (en) Peripheral controller
JPH01292543A (en) Collection system for fault data
JPS58153290A (en) System for invalidating buffer memory
JPS60123949A (en) Controlling system of storage device
JPS62117465A (en) Memory control system
JPH02260042A (en) Data reference resolving system
JPH02113648A (en) Error information storing device
JPH03225530A (en) Fault processing system
JPS62105242A (en) Information processor