Oracle OCP 1Z0 053 Q399(block media recovery)

399.Which of the following is not an advantage of block media recovery (BMR)?
A. Reduced MTTR.
B. Datafiles remain offline while corrupt blocks are repaired.
C. Datafiles remain online while corrupt blocks are repaired.
D. A and C
Answer: B

官方文件：http://docs.oracle.com/cd/E36909_01/backup.1111/e10642/rcmblock.htm

Lowers the mean time to recover (MTTR) because only blocks needing recovery are restored and recovered
Enables affected data files to remain online during recovery


參考：http://blog.csdn.net/rlhua/article/details/14521481

來自 “ ITPUB部落格 ” ，連結：http://blog.itpub.net/8520577/viewspace-2075475/，如需轉載，請註明出處，否則將追究法律責任。