ORACLE12C DG下redo迁移
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SQL> SELECT * FROM v$logfile;GROUP# STATUS TYPE
MEMBER
IS_ CON_ID
3 ONLINE
+DATA/JY/ONLINELOG/group_3.264.968770057
NO 0
2 ONLINE
+DATA/JY/ONLINELOG/group_2.263.968770045
NO 0
GROUP# STATUS TYPE
MEMBER
IS_ CON_ID
1 ONLINE
+DATA/JY/ONLINELOG/group_1.262.968770045
NO 0
SQL> select group#,status from v$log;
GROUP# STATUS
1 INACTIVE
2 INACTIVE
3 CURRENT
SQL> alter database add logfile member ‘+REDO‘,‘+ARCH‘ to group 1;
Database altered.
SQL> alter database add logfile member ‘+REDO‘,‘+ARCH‘ to group 2;
Database altered.
SQL> alter database add logfile member ‘+REDO‘,‘+ARCH‘ to group 3;
Database altered.
SQL> select group#,status from v$log;
GROUP# STATUS
1 INACTIVE
2 INACTIVE
3 CURRENT
SQL> alter system switch logfile;
System altered.
SQL> alter database drop logfile member ‘+DATA/JY/ONLINELOG/group_1.262.968770045‘;
Database altered.
SQL> alter system switch logfile;
System altered.
SQL> alter database drop logfile member ‘+DATA/JY/ONLINELOG/group_2.263.968770045‘;
Database altered.
SQL> alter system switch logfile;
System altered.
SQL> alter database drop logfile member ‘+DATA/JY/ONLINELOG/group_3.264.968770057‘;
Database altered.
SQL> select a.group#,a.bytes/1024/1024 mb,b.member from v$log a,v$logfile b where a.group#=b.group#;
GROUP# MB
MEMBER
1 200
+REDO/JY/ONLINELOG/group_1.256.968854893
1 200
+ARCH/JY/ONLINELOG/group_1.256.968854895
2 200
+REDO/JY/ONLINELOG/group_2.257.968854901
GROUP# MB
MEMBER
2 200
+ARCH/JY/ONLINELOG/group_2.257.968854903
3 200
+REDO/JY/ONLINELOG/group_3.258.968854907
3 200
+ARCH/JY/ONLINELOG/group_3.258.968854909
6 rows selected.
ORACLE12C DG下redo迁移
标签:switch ase base system oracle12c ted code pre logfile
本文系统来源:http://blog.51cto.com/shurk/2072376
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