本文探讨如何将现有的RMAN数据库备份转换为存档备份，使其不受RMAN保留策略的影响。转换成功的关键条件包括在恢复目录中注册备份，以及确保备份不存放在快速恢复区，以防空间不足导致自动清理。
1. You want to convert an existing database backup into an archival backup that will always be exempt from the RMAN retention policy.
Which two conditions should be met for the backup to be converted successfully?
A. The RESTORE POINT clause should be used.
B. It should be registered in a recovery catalog.
C. It should reside in the fast recovery area.
D. It should not reside in the fast recovery area.
E. The RESTORE POINT clause should not be used
F. It should not be registered in a recovery catalog
Answer: BD
Explanation/Reference:
如果需要一个已有的备份不被rman 的retention 影响。
个人理解：
1 要再recovery catalog 注册， 避免 目标库自己故障了。相关的备份元数据信息丢失。
2 如果放在FRA区域，如果发生空间满的问题， 这份可能被标识为过期或者孤立的数据会被自动清理。
Extmpt ： 豁免。
When the fast recovery area is full, Oracle Database automatically deletes eligible files to reclaim space in the recovery area as needed.
When the fast recovery area is full, Oracle Database automatically deletes eligible files to reclaim space in the recovery area as needed.
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