rman清除過期歸檔日誌

1.手動刪除歸檔日誌

使用rm或find方式刪除，通過此方式刪除後，在rman下通過crosscheck archivelog all 校驗歸檔是否失效。如下：

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rm -rf arch_*.arc   RMAN> crosscheck archivelog all

2.使用rman方式清除

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[oracle@DG1 arch1]$ rman target /   Recovery Manager: Release 11.2.0.1.0 - Production on Mon Jan 27 12:53:10 2014   Copyright (c) 1982, 2009, Oracle and/or its affiliates.  All rights reserved.   connected to target database: SHANGHAI (DBID=3901608490)   RMAN> crosscheck archivelog all;   using target database control file instead of recovery catalog allocated channel: ORA_DISK_1 channel ORA_DISK_1: SID=36 device type=DISK validation succeeded for archived log archived log file name=/opt/app/oracle/arch1/1_889_821988333.dbf RECID=1100 STAMP=831656179 ...... archived log file name=/opt/app/oracle/arch1/1_1167_821988333.dbf RECID=1378 STAMP=837953487 validation succeeded for archived log archived log file name=/opt/app/oracle/arch1/1_1168_821988333.dbf RECID=1379 STAMP=837953488 Crosschecked 280 objects   RMAN> list expired archive log all;   using target database control file instead of recovery catalog List of Archived Log Copies for database with db_unique_name SHANGHAI =====================================================================   Key     Thrd Seq     S Low Time ------- ---- ------- - --------- 1211    1    1000    X 29-NOV-13         Name: /opt/app/oracle/arch1/1_1000_821988333.dbf   1212    1    1001    X 29-NOV-13         Name: /opt/app/oracle/arch1/1_1001_821988333.dbf   ...   1375    1    1164    X 18-DEC-13         Name: /opt/app/oracle/arch1/1_1164_821988333.dbf   1376    1    1165    X 18-DEC-13         Name: /opt/app/oracle/arch1/1_1165_821988333.dbf   RMAN> delete archive log all completed before 'sysdate-7';   RMAN>

 

crosscheck archivelog all; 校驗日誌的可用性

list expired archivelog all; 列出所有失效的歸檔日誌

delete archivelog until sequence <SCN_ID>; 刪除log sequence爲<SCN_ID>以及<SCN_ID>之前的所有歸檔日誌。

delete archivelog all completed before 'sysdate-7'; 刪除系統時間7天之前的歸檔日誌，不會刪除閃回區有效的歸檔日誌

delete archivelog from time 'sys date-1';刪除系統時間1天以內至現在的歸檔日誌

delete nopromt archvielog all completed before 'sys date'; 清除所有的歸檔日誌

delete nopromt archvelog all ;清除所有的歸檔日誌