ADG 备库不允许切换日志

1、备库演示，会报错，数据库为打开。

SQL> archive log list;
Database log mode          Archive Mode
Automatic archival         Enabled
Archive destination        /arch
Oldest online log sequence     4132
Next log sequence to archive   0
Current log sequence           4134
SQL> alter system archive log current;
alter system archive log current
*
ERROR at line 1:
ORA-01109: database not open

SQL> 

ADG 备库不允许切换日志

原文：https://blog.51cto.com/roidba/2444028