505.You configured the default backup device type as disk for RMAN backups. In your database, because
of business requirements, you have to take a simultaneous duplicate backup of the data files when the
RMAN BACKUP command is used.
What must you set using the RMAN CONFIGURE command to achieve this?
A. MAXSETSIZE TO 2;
B. DEVICE TYPE DISK PARALLELISM 2;
C. RETENTION POLICY TO REDUNDANCY 2;
D. DATAFILE BACKUP COPIES FOR DEVICE TYPE DISK TO 2;
Answer: D

题意是要复制数据文件备份

RMAN> configure datafile backup copies for device type disk to 2;


新的 RMAN 配置参数:
CONFIGURE DATAFILE BACKUP COPIES FOR DEVICE TYPE DISK TO 2;
已成功存储新的 RMAN 配置参数

RMAN> backup datafile 1;


启动 backup 于 04-4月 -16
使用通道 ORA_DISK_1
通道 ORA_DISK_1: 正在启动全部数据文件备份集
通道 ORA_DISK_1: 正在指定备份集内的数据文件
输入数据文件: 文件号=00001 名称=E:\APP\ORACLE\ORADATA\ORCL\SYSTEM01.DBF
通道 ORA_DISK_1: 正在启动段 1 于 04-4月 -16
通道 ORA_DISK_1: 已完成段 1 于 04-4月 -16, 有 2 个副本和标记 TAG20160404T091133
段 handle=E:\APP\ORACLE\PRODUCT\12.1.0\DBHOME_1\DATABASE\0NR266A5_1_1 comment=NO
NE
段 handle=E:\APP\ORACLE\PRODUCT\12.1.0\DBHOME_1\DATABASE\0NR266A5_1_2 comment=NO
NE
通道 ORA_DISK_1: 备份集已完成, 经过时间:00:00:45
完成 backup 于 04-4月 -16


启动 Control File and SPFILE Autobackup 于 04-4月 -16
段 handle=E:\APP\ORACLE\PRODUCT\12.1.0\DBHOME_1\DATABASE\C-1432598125-20160404-0
1 comment=NONE
完成 Control File and SPFILE Autobackup 于 04-4月 -16