轉至archivelog模式

$mkdir /oracle/archive1 --假設建立兩個歸檔目的地

$mkdir /oracle/archive2

SQL>connect / as sysdba

SQL>alter system set log_archive_dest_1 = 'location=/oracle/archive1/' scope=spfile;

SQL>alter sytem set log_archive_dest_2 ='location=/oracle/archive2/' scope=spfile;

SQL>alter system set log_archive_format ='arch_%d_%t_%r_%s.log' scope=spfile;

SQL>shutdown immediate;

SQL>startup monut;

SQL>alter database archivelog;

SQL>altetr database open;

SQL>selec log_mode from v$database; --檢視是否為archive模式

SQL>select archiver from v$instance; --檢視archiver是否處於執行狀態

SQL>alter system switch logfile; --將歸檔日誌寫至兩個目的地

SQL>select name from v$archived_log; --確認存在兩個日誌目的地

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