dataguard Redo Logs管理
【摘要】 主数据库：1. Add Redologs on Standby2. Drop Redologs on Standby3. Sync Redologs on Primary and Standby备数据库：Add Redo Logs on Standby：SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE CANCEL;SQL> ALTER...
主数据库：
1. Add Redologs on Standby
2. Drop Redologs on Standby
3. Sync Redologs on Primary and Standby备数据库：
Add Redo Logs on Standby：
SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE CANCEL;
SQL> ALTER SYSTEM SET STANDBY_FILE_MANAGEMENT='MANUAL';
SQL> ALTER DATABASE ADD LOGFILE GROUP 4 ('<PATH>\<LOG_FILE_NAME>.log') SIZE 100M;
SQL> ALTER SYSTEM SET STANDBY_FILE_MANAGEMENT='AUTO';
SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE DISCONNECT FROM SESSION;
Drop Redo Logs on Standby：
SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE CANCEL;
SQL> ALTER SYSTEM SET STANDBY_FILE_MANAGEMENT='MANUAL';
SQL> ALTER DATABASE CLEAR LOGFILE GROUP n;
SQL>ALTER DATABASE DROP LOGFILE GROUP n;
SQL> ALTER SYSTEM SET STANDBY_FILE_MANAGEMENT='AUTO';
SQL> ALTER DATABASE RECOVER MANAGED STANDBY DATABASE DISCONNECT FROM SESSION;
#自动创建redo log:
Start Redo Apply:
When using Oracle Database >=10.2.0.1 and LOG_FILE_NAME_CONVERT is configured the online redo logs will be automatically cleared and physically created when starting recovery.
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