KR950009439A - How to Implement Backup Function in Real-Time Database Management System (DBMS) - Google Patents

How to Implement Backup Function in Real-Time Database Management System (DBMS) Download PDF

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Publication number
KR950009439A
KR950009439A KR1019930018462A KR930018462A KR950009439A KR 950009439 A KR950009439 A KR 950009439A KR 1019930018462 A KR1019930018462 A KR 1019930018462A KR 930018462 A KR930018462 A KR 930018462A KR 950009439 A KR950009439 A KR 950009439A
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South Korea
Prior art keywords
log
processor
backup
dbms
disk
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KR1019930018462A
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Korean (ko)
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KR960014198B1 (en
Inventor
김웅하
조주현
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양승택
재단법인 한국전자통신연구소
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Publication of KR960014198B1 publication Critical patent/KR960014198B1/en

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F11/00—Error detection; Error correction; Monitoring
    • G06F11/07—Responding to the occurrence of a fault, e.g. fault tolerance
    • G06F11/14—Error detection or correction of the data by redundancy in operation
    • G06F11/1402—Saving, restoring, recovering or retrying
    • G06F11/1446—Point-in-time backing up or restoration of persistent data
    • G06F11/1458—Management of the backup or restore process

Abstract

본 발명의 목적은 교환기 백업 기능 조건에 만족되도록 데이타의 일치성 보장 및 빠른 속도를 갖는 실시간 DBMS에서의 백업 기능 구현 방법을 제공하는데 있는 것으로, 응용 프로그램내의 백업 릴레이션 변경 요구에 따라 메모리 DB변경후 디스크 백업을 위해 필요한 변경버퍼에 변경 내용을 기록하는 제1단계와, 상기 변경 버퍼를 기반으로 디스크에 적용하는 형태인 로그를 제작하는 제2단계와, 상기 제작된 로그를 전송 받아 로그 저장장소인 로프 스풀에 저장하는 제3단계와, 전송받은 로그를 저장하는 로그 스풀안에 로그의 존재 유무를 판단하여 로그가 존재하는 경우 디스크에 백업하는 제4단계와, 중복릴레이션의 변경요구인 경우에는 신속한 처리를 위해 마스터 프로세서에만 백업이 되게하고 타 프로세서들에게는 백업이 되지 않도록 하는 제5단계와, 시스템 재시동인 경우에는 중복 릴레이션 데이타의 일치를 위해 마스터 프로세서의 데이타 베이스(DB)내의 중복 릴레이션을 타 프로세서의 DB내 해당 중복 릴레이션 위치에 복사하는 제6단계를 구비한다.It is an object of the present invention to provide a method of implementing a backup function in a real-time DBMS that guarantees the consistency of data and has a high speed so as to satisfy a switch backup function condition. A first step of recording changes in a change buffer necessary for backup; a second step of producing a log in a form of applying to a disk based on the change buffer; and a rope storing a log as a log storage location by receiving the produced log The third step of storing the log on the spool, the fourth step of backing up the disk if the log exists by judging the existence of the log in the log spool storing the received log, and the rapid processing in the case of a request for changing the redundancy. 5th stage to make backup only to master processor and not to other processors And, in the case of system restart it has a sixth step of copying the DB within the overlapping relation to the location of the other processor overlapping relation in the database (DB) of the master processors for the matching of the overlapping relation data.

Description

실시간 데이타 베이스 관리 시스템(DBMS)에서의 백업 기능 구현방법How to Implement Backup Function in Real-Time Database Management System (DBMS)

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명의 내용을 포함하는 실시간 시스템인 전전자 교환기 DBMS의 분산구조도,1 is a distributed structure diagram of an electronic switching system DBMS which is a real time system including the contents of the present invention

제2도는 실시간 시스템인 전전자 교환기 시스템상에 구현된 백업 기증을 처리하기 위한 관련 블럭간의 구성 및 메시지의 흐름을 나타낸 구조도,2 is a structural diagram showing the flow and configuration of messages between related blocks for processing backup donations implemented on an all-electronic switching system as a real-time system,

제3도는 실시간 시스템인 전전자 교환기 시스템상에 구현된 백업 기능을 처리하기 위한 전체적인 흐름도.3 is a general flow diagram for processing a backup function implemented on an all-electronic switching system which is a real time system.

Claims (1)

ASP(Access Switching Processor)들을 구비하고 분산된 호처리 기능을 수행하는 가입자 교환 서브시스팀(ASS)과,INP(Interconnection Network Processor)와 NTP(Number translation Processor)를 구비하고 집중화된 호처리 기능 부분을 수행하는 연결망 서비 시스팀(INS)과,OMP(Operation and Mainternance Processor)와 MMP(Man-Machine Processor)를 구비하며 운용 및 보전에 관련된 집중화 기능을 수행하는 중앙제어 서비 시스팀(CCS)으로 이루어지며, 상기 각 프로세서는 데이타 베이스 관리 시스템(DBMS)를 구비하도록 한 전전자 교환기에 적용되는 백업 기능 구현 방법에 있어서, 응용 프로그램내의 백업 릴레이션 변경 요구에 따라 메모리 DB변경후 디스크 백업을 위해 필요한 변경버퍼에 변경 내용을 기록하는 제1단계와, 상기 제1단계 수행후, 상기 변경 버퍼를 기반으로 디스크에 적용하는 형태인 로그를 제작하는 제2단계와, 상기 제2단계 수행후, 상기 제작된 로그를 전송 받아 로그 저장장소인 로프스풀에 저장하는 제3단계와, 상기 제3단계 수행후, 전송받은 로그를 저장하는 로그 스풀안에 로그의 존재 유무를 판단하여 로그가 존재하는 경우 디스크에 백업하는 제4단계와, 중복 릴레이션의 변경요구인 경우에는 신속한 처리를 위해 마스터 프로세서에만 백업이 되게 하고 타 프로세서들에게는 백업이 되지 않도록 하는 제5단계와, 시스템 재시동인 경우에는 중복 릴레이션 데이타의 일치를 위해 마스터 프로세서 데이타 베이스(DB)내의 중복 릴레이션을 타 프로세서의 DB내의 해당 중복 릴레이션 위치에 복사하는 제6단계를 구비하여 수행하는 데이타 베이스 관리 시스템(DBMS)에서의 백업 기능 구현 방법.Subscriber Switching Subsystem (ASS) with Access Switching Processors (ASP) and distributed call processing function, Interconnection Network Processor (INP) and Number translation Processor (NTP) and centralized call processing function It consists of a network service system (INS), an OMP (Operation and Mainternance Processor) and a MMP (Man-Machine Processor), and a central control service system (CCS) that performs centralization functions related to operation and maintenance. The processor is a method of implementing a backup function applied to an electronic switch having a database management system (DBMS), and changes the contents to a change buffer necessary for disk backup after changing a memory DB according to a backup relation change request in an application program. The first step of recording, and after performing the first step, the log is applied to the disk based on the change buffer A second step of the operation, and after performing the second step, the third step of receiving the produced log in the rope spool of the log storage place, and the log spool to store the received log after performing the third step The fourth step of backing up the disk if the log exists by determining whether there is a log in it, and if it is required to change the redundant relation, the backup should be backed up only to the master processor for quick processing, and not backed up to other processors. A fifth step and a sixth step of copying the redundant relation in the master processor database (DB) to the corresponding redundant relation position in the other processor's database to match the duplicate relation data in case of system restart. How to implement backup functions in a management system (DBMS). ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019930018462A 1993-09-14 1993-09-14 Data base management system KR960014198B1 (en)

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KR960014198B1 KR960014198B1 (en) 1996-10-14

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100324276B1 (en) * 1999-09-17 2002-02-21 서평원 method for data backup of DBMS in switching system
KR100330177B1 (en) * 1999-11-05 2002-03-28 서평원 Replicated Relation Recovery Method In Switching System DBMS
KR20020036176A (en) * 2000-11-08 2002-05-16 박종섭 Method for dumping and backup file between msc and remote workstation

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100324276B1 (en) * 1999-09-17 2002-02-21 서평원 method for data backup of DBMS in switching system
KR100330177B1 (en) * 1999-11-05 2002-03-28 서평원 Replicated Relation Recovery Method In Switching System DBMS
KR20020036176A (en) * 2000-11-08 2002-05-16 박종섭 Method for dumping and backup file between msc and remote workstation

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Publication number Publication date
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