QUESTION NO: 102
A database is running In ARCHIVBXXMS mode. It has two online redo log groups and each group has
one member. A LGWR Input/output (I/O) fells due to permanent media failure that has resulted In the loss
of redo log file and the LWGR terminates causing the instance to crash.
The steps to recover from the loss of a current redo log group member in the random order are as follow.从
1) Restore the corrupted redo log group.
2) Restore from a whole database backup.
3) Perform incomplete recovery. 执行不完全恢复。
4) Relocate by renaming the member of the damaged online redo log group to a new location. 通过重命名
迁移损坏的联机重做日志组的成员到一个新的位置。
5) Open the database with the RESETLOGS option.用重置日志选项打开数据库。
6) Restart the database instance.
7) Issue a checkpoint and clear the log. 发出一个检查点并清除日志。
Identify the option with the correct sequential steps to accomplish the task efficiently.
确定带有正确顺序步骤的选项以有效地完成任务。
A. 1, 3, 4, and 5
B. 7, 3, 4. and 5
C. 2, 3, 4, and 5
D. 7, 4, 3. and 5
E. Only 6 is required
Answer: B
数据库正在运行在归档 XXMS 模
式。它有两个联机重做日志组，每组有一名成员。 一个 LGWR 输入/输出（ I / O） 失败是由于永久介质故
障， 该故障导致重做日志文件丢失和 LWGR 终止导致实例崩溃。
在如下的随机顺序的当前重做日志组的成员的损失中恢复过来的步骤如下:
B. 7, 3, 4. and 5
7) Issue a checkpoint and clear the log. 发出一个检查点并清除日志。
3) Perform incomplete recovery. 执行不完全恢复。
4) Relocate by renaming the member of the damaged online redo log group to a new location. 通过重命名
5) Open the database with the RESETLOGS option.用重置日志选项打开数据库。