银行交易系统2

銀行交易系統-2,以玉山銀行為例,NetworkArchitecture,TokenRing,TokenRing,ROUTERIBM2216,主機系統,傳輸控制機,IBM3745-170,RouterIBM2210,DSU,DSU,分行主機,IBMAS/400,MSD,DB2/2SERVER,CPS/Client,SNA,TCP/IP,櫃員工作站,T/W,櫃員工作站,64K,CPS/Client,CPS/Client,CPS/NotesSERVER,櫃員工作站,ATM,TTN-F.R.,1.544M,ISDN(PRI)ForBackup,BetweenCenterandTTN(Taipei),ISDN(BRI)ForBackup,BetweenBranchandTTN(Local),中南部分行,I,SDN(BRI)ForBackup,BetweenCenterandBranch,大台北地區分行,DSU,DSU,TA,#2283ISDNPRIPORT,Internet,www,IBMAS/400,NotesServer,NotesServer,RouterIBM2210,IBM9672-R15,與跨行網路switchingcenter之連接,ESB-Production,X.25,ESB-Testing,FISC-Production,FISC-Testing,IBM3745-170,傳輸控制機,IBM3745-170,IBM3745-170,Modem,Modem,Modem,Master:,9.6KLeased-Line,Master,Dial-Line,Backup,9.6K/X.25,Modem,Modem,IBM3745-170,IBM9672-R15,IBM9121-311,與海外分行之連接,Token-ring,Token-ring,TokenRing,Cisco2600Router,IBM3745-170,Cisco,2600Router,DSU,IBMAS/400,0/26,NTSSRV01_ES0001,64K,Internet,256K,DSU,NT1,IBM2210-24M,/26,PC,PC,PC,Laserprinter,NotesServer,/26,ISDNBackup,VPN,NT1,VPN,ISDNBackup,IBM2216,TTN,Frame-Relay,DSU,TA,IBM,2210,DSU,IBMAS/400,64K,NT1,PC,PC,NotesServer,ISDNBackup,PC,IBM2210-24M,IBM3745-170,,29/25,/25,53/24,98/24,L.A.分行,國外部,IBM9672-R15,IBM9121-311,交易處理系統的軟體架構,會計系統為核心Online/Batch妥為切割Batch份量重運作管理GlobalClockRemoteMaintenance/Distribution內部控制及亂碼作業斷線也要繼續服務,2-phasecommitprocess,PhaseIPrepareandcheckDBavailableforupdatingSDEPspace夠insert否？是否發生DBdeadlock？PhaseIIFinalizelogrecords(before/afterimage)UpdateDB(DEDB,SDEP)Releaseresourcesandclean-up,SYNC/CKPT,SYNC:Issuedbyapplication(bothonlineandbatch)forrecovery/restart為維持dataintegrity交易處理過程中對所要更新的資料會先予凍結避免其他交易來access直到發SYNC/ROLBcall時才確認完成(或加以還原)剛才對DB所做的更新動作其他交易也才能access該筆資料。SYNC/ROLB的效果僅及於同一region之內,A,B,C,D,E,CKPT-1,SYNC,ROLB,SYNC,CKPT-2,SYNC/CKPT,CKPT:Issuedbyoperator,IMS(whenlogisfulledorscheduled),forsystemrecovery/restart兩個ckpt之間系統當則重起時將憑藉之前所保存的log將message回復到最後一個checkpoint(即CKPT-1)所記錄的狀態。對一個region看因是回到A點故系統重起後必須重做B點所做的處理。若為onlinetransaction則重新輸入重新執行若為batchprocessing則由程式依自訂的R/R方式rerun,交易處理狀況,每日三十萬到五十萬筆之間其中來自分行櫃台者不到1/4峰時13:00-14:00,