132.You are managing an Oracle Database 11g database. You want to take the backup of MULT_DATA, a
big file tablespace of size 100 TB on tape drive, but you have tapedrives of only 10 GB each. Which
method would accomplish the task quickly and efficiently?
A. parallel image copy backup
B. backup with MAXPIECESIZE configured for the channel
C. parallel backup with MAXPIECESIZE configured for the channe
D. intrafile parallel backup
Answer: D
Intrafile是Oracle 11G新增的特性,可以用于对超大型文件的并行备份与还原。
RMAN provides a wealth of new
functionality including (i) backup performance improvement with intrafile
parallelism and faster backup compression algorithm, (ii) enhanced security for
recovery catalog users, (iii) reduced space consumption for RMAN
duplicate database cloning, and (iv) better manageability for Data Guard
environments.
参考:
http://www.oracle.com/technetwork/database/features/availability/twp-br-11gr1-129681.pdf
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