5.3.1.2 ARCn Archival Processing

5.3.2.2 LGWR SYNC Archival Processing

5.3.2.3 LGWR ASYNC Archival Processing

参考自oralce官方文档：http://download.oracle.com/docs/cd/B19306_01/server.102/b14239/log_transport.htm#i1265592



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