银行交易系统2(1)

銀行交易系統-2以玉山銀行為例NetworkArchitectureTokenRingTokenRingROUTERIBM2216主機系統傳輸控制機IBM3745-170RouterIBM2210DSUDSU分行主機IBMAS/400MSDDB2/2SERVERCPS/ClientSNATCP/IP櫃員工作站T/W櫃員工作站64KCPS/ClientCPS/ClientCPS/NotesSERVER櫃員工作站ATMTTN-F.R.1.544MISDN(PRI)ForBackupBetweenCenterandTTN(Taipei)ISDN(BRI)ForBackupBetweenBranchandTTN(Local)中南部分行ISDN(BRI)ForBackupBetweenCenterandBranch大台北地區分行DSUDSUTA#2283ISDNPRIPORTInternet與跨行網路switchingcenter之連接ESB-ProductionX.25ESB-TestingFISC-ProductionFISC-TestingIBM3745-170傳輸控制機IBM3745-170IBM3745-170ModemModemModemMaster:9.6KLeased-LineMasterDial-LineBackup9.6K/X.25ModemModemIBM3745-170IBM9672-R15IBM9121-311與海外分行之連接Token-ringToken-ringTokenRingCisco2600RouterIBM3745-170Cisco2600RouterDSUIBMAS/40012.31.191.10/26NTSSRV01_ES000164KInternet256KDSUNT1IBM2210-24M12.31.191.0/26PCPCPCLaserprinterNotesServer12.31.191.3/26ISDNBackupVPNNT1VPNISDNBackupIBM2216TTNFrame-RelayDSUTAIBM2210DSUIBMAS/40064KNT1PCPCNotesServerISDNBackupPCIBM2210-24MIBM3745-17012.31.191.1203.163.89.129/25203.163.89.1/25172.17.204.253/24172.17.204.198/24L.A.分行國外部IBM9672-R15IBM9121-311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GlobalClockRemoteMaintenance/Distribution內部控制及亂碼作業斷線也要繼續服務TransactionControlProgramTransactionProcessingProgramMVSIMSDB/DCVTAMTellerSelf-ServiceIVR,…2-phasecommitprocessPhaseI–PrepareandcheckDBavailableforupdating•SDEPspace夠insert否？•是否發生DBdeadlock？PhaseII–Finalizelogrecords(before/afterimage)–UpdateDB(DEDB,SDEP)–Releaseresourcesandclean-upSYNC/CKPTSYNC: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ABCDECKPT-1SYNCROLBSYNCCKPT-2SYNC/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rerunABCDECKPT-1SYNCROLBSYNCCKPT-2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︰13:00-14:00,11:00-12:00峰時交易量︰每秒24.x筆車道流量車道(IMSregion)流量會計快車道×2載重快車道行內ATM跨行ATM其他合計外匯載重慢車道慢車道匯兌語音及網路合計9,021,261(2kOct.)其他(9%)︰補登摺機信用查詢國際金融卡POS(NCCC)看板﹑期貨…等交易統計圖表(2k/10)