ORA-00340: IO error processing online log of thread LNS: Failed to archive log 3 thread 2 sequence 25 (340) 针对这个故障,在《Archive log shipping fails with ORA-340 (Doc ID 2754341.1)》一文中有详细的说明。在备库上rename数据文件,会导致备用重做日志(standby redo log)关闭,这就是在主数据库上...