//停止整个数据库
srvctl stop database –d test
//mount其中一个节点
srvctl start instance –d test –i test1 –o mount
$ sqlplus / nolog
SQL>conn sys/test@test as sysdba;
SQL>Archive log list;
//切换为归档模式
SQL>alter database archivelog;
SQL>archive log list;
SQL>shutdown
//重新启动
$srvctl start database –d test
OK
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