Data Guard保护级别改变时错误记录

Data Guard保护级别改变时错误记录:

操作都在主库上完成.

保护级别从maxmize performance到maximize availability 时出错,检查警告日志发现

Errors in file /oracle/admin/orcl/bdump/orcl_lgwr_12619.trc:
ORA-16072: a minimum of one standby database destination is required
Mon Apr 14 11:35:36 2008
Errors in file /oracle/admin/orcl/bdump/orcl_lgwr_12619.trc:
ORA-16072: a minimum of one standby database destination is required
LGWR: terminating instance due to error 16072
Instance terminated by LGWR, pid = 12619
Mon Apr 14 11:37:11 2008

错误原因:归档日志参数设置错误:没有使用 lgwr sync affirm,改参数,问题解决.