文档解释
ORA-16177: media recovery is not required
Cause: The THROUGH LAST SWITCHOVER clause of the ALTER DATABASE RECOVER MANAGED STANDBY DATABASE was specified and the database has been recovered to the most recent End-Of-Redo marker. All known archived logs have been applied. Managed recovery is not required.
Action: No action is necessary. The standby database may be activated as a new primary or may continue as a standby.
ORA-16177:表明Media Recovery不在本次recovery操作的必要范围内。
官方解释
ORA-16177 is a generic error message. It means that Media Recovery is not required for the current recovery operation.
常见案例
此错误通常是在有空洞发生时发出警告。空洞是大小为0的日志文件块,其大小大于一个数据块。当恢复某个文件时,如果发现有空洞,就会出现此错误。
一般处理方法及步骤
1.确定文件中存在空洞;
2.根据需要进行media recovery操作,或者使用skip option跳过空洞;
3.忽略此警告,继续恢复文件;
4.如果文件恢复完成而空洞未被一同恢复,那么只需要对空洞重新进行恢复;
5.在进行新的恢复操作前,一定要检查是否有空洞;
6.确保文件在正常恢复前通过分析正确恢复。
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