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OracleRAC开启归档模式及设置归档路径

时间:2021-07-01 10:21:17 帮助过:25人阅读

Oracle RAC的参数文件和单实例参数文件不同,所以修改参数文件时需要注意。首先设置归档路径:SQLgt;alter system set log_arch

Oracle RAC的参数文件和单实例参数文件不同,,所以修改参数文件时需要注意。

首先设置归档路径:

SQL>alter system set log_archive_dest=’/opt/oracle/archive’scope=spfile sid=’*';

System altered.

SQL>col sid for a10
SQL>col name for a20
SQL>col value for a30
SQL>select sid,name,value from v$spparameter where name=’log_archive_dest’;

SID NAME VALUE
———- ——————–——————————
* log_archive_dest /opt/oracle/archive

然后关闭两个实例,启动实例,更改数据库为归档模式:

SQL>shutdown immediate;
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL>startup mount;
ORACLE instance started.

Total System Global Area 1258291200 bytes
Fixed Size 1978336 bytes
Variable Size 352325664 bytes
Database Buffers 889192448 bytes
Redo Buffers 14794752 bytes
Database mounted.
SQL>alter database archivelog;

Database altered.

SQL>alter database open;

Database altered.

SQL>archive log list;
Database log mode Archive Mode
Automatic archival Enabled
Archive destination /opt/oracle/archive
Oldest online log sequence 83
Next log sequence to archive 84
Current log sequence 84

接下来启动另外一个节点,完成归档模式的变更过程。

在RAC环境下,归档路径的选择是值得斟酌的,如果使用共享的归档目录作为归档路径,则可以减少备份时的复杂性。如果使用独立的目录,则备份时需要进行特殊处理。

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