KR960024955A - Error recovery method of Tycom I / O processing kernel - Google Patents
Error recovery method of Tycom I / O processing kernel Download PDFInfo
- Publication number
- KR960024955A KR960024955A KR1019940032633A KR19940032633A KR960024955A KR 960024955 A KR960024955 A KR 960024955A KR 1019940032633 A KR1019940032633 A KR 1019940032633A KR 19940032633 A KR19940032633 A KR 19940032633A KR 960024955 A KR960024955 A KR 960024955A
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- tycom
- tape
- error
- output processing
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- Retry When Errors Occur (AREA)
Abstract
본 발명은 타이콤 입출력 처리 커넬의 오류복구 방법에 관한 것이다.The present invention relates to an error recovery method of a tycom input / output processing kernel.
종래 타이콤의 입출력 처리 커넬부가 코거 제어부에 전달한 명령은 반드시 인터럽트를 통해 리턴되어야만 정상적으로 인터페이스가 가능하고, 따라서 SCSI버스의 불안정 주변장치(테이프)의 오류로 인하여 정상적으로 인터럽트를 보낼 수 없는 명령어가 생길 수 있으며, 이에 따라 오류가 발생한 채널에 디바이스를 사용할 수 없는 경우가 발생하는데 이경우의 해결 방법은 전체 시스템을 재 부팅 해야만 하는 문제점이 있었다.Conventionally, the commands transmitted to the coker control unit by Tycom's input / output processing unit must be returned through interrupts, so that the interface can be normally connected. Therefore, a command that cannot send an interrupt normally due to an unstable peripheral (tape) error of the SCSI bus may occur. As a result, a device cannot be used for an error channel, and the solution to this case has to be a reboot of the entire system.
따라서 본 발명은 상기한 종래 기술의 문제점을 개선코자 하여 타이콤 입출력 처리 커넬이 정상적으로 시스템이 구동하는 중에 정확히 알 수 없는 상태로 홀딩된 SCSI 버스 또는 주변장치 상태를 명령어 타임아웃(Timeout)을 통해 이상이 생긴 SCSI 버스 또는 주변장치를 SCSI 명령을 써서 정상으로 온 라인 상태에서 오류를 복구하도록 한 것이다.Therefore, in order to improve the above-mentioned problems of the prior art, the TSI input / output processing kernel abnormally holds a SCSI bus or peripheral state held in an unknown state while the system is running normally through a command timeout. This SCSI bus or peripheral was used to recover the error from the normal online state using SCSI commands.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.
제4도는 본 발명에 의한 코거 블럭에서의 타임아웃 인터럽트 처리과정의 흐름도, 제5도는 본 발명에 의한 테이프 디바이스의 상태 변화도, 제6도는 본 발명에 의한 타이콤 입출력 처리 커넬의 오류 복구과정의 흐름도.4 is a flowchart of a timeout interrupt process in a coker block according to the present invention, FIG. 5 is a state change diagram of a tape device according to the present invention, and FIG. 6 is an error recovery process of a Tycom input / output process kernel according to the present invention. Flowchart.
Claims (2)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019940032633A KR960024955A (en) | 1994-12-03 | 1994-12-03 | Error recovery method of Tycom I / O processing kernel |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019940032633A KR960024955A (en) | 1994-12-03 | 1994-12-03 | Error recovery method of Tycom I / O processing kernel |
Publications (1)
Publication Number | Publication Date |
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KR960024955A true KR960024955A (en) | 1996-07-20 |
Family
ID=66649069
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1019940032633A KR960024955A (en) | 1994-12-03 | 1994-12-03 | Error recovery method of Tycom I / O processing kernel |
Country Status (1)
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KR (1) | KR960024955A (en) |
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1994
- 1994-12-03 KR KR1019940032633A patent/KR960024955A/en not_active Application Discontinuation
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