27.You are using the flash recovery area (fast recovery area in 11g Release 2) to store backup related files in your database.
After regular monitoring of space usage in the flash recovery area. You realize that the flash recovery area is (jetting filled up very fast and it is running out of space. Your database flash recovery area is low on specie and you have no more room on disk. Proactively, which two options could you use to make more space available in the flash recovery [Choose two]
A. Change the RMAN archived log deletion policy.
B. Use the RMAN CROSSCHECK command to reclaim the archived log space.
C. Change the RMAN retention policy to retain backups for a shorter period of time.
D. Use OS command to move files from the flash recovery area to some other location
Answer: BD
题意是:闪回恢复区空间紧张,如何处理可以使闪回区有更多的可用空间?
D:将文件从闪回区移到系统的其他位置;
B:使用RMAN的CROSSCHECK命令交叉检查闪回区文件回收归档记录空间。
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