053-606

Identify the channel settings that can be performed using the CONFIGURE CHANNEL or ALLOCATE CHANNEL commands in RMAN (choose all that apply)
A. Limiting the input/output (I/O) bandwidth consumption
B. Specifying the size of backup sets and backup pieces
C. Specifying vendor-specific information for a media manager
D. Specifying the parallelism for backup and restore operations

　　CONFIGURE CHANNEL 是为 RMAN 会话配置自动通道配置。如果没使用 ALLOCATE CHANNEL 手动指定通道配置，就会使用自动通道配置。你必须为媒体管理器配置 1 个或多个通道，可以为其配置默认通道。
　　可以在配置通道的时候使用 rate 选项，来限制 I/O 的带宽