rman配置預設的備份路徑和磁碟型別

Example 2–41 Configuring Device and Backup Options
This example configures channels of device type DISK and sbt and sets the default 
device type as sbt. The example also enables backup optimization and configures a 
recovery windows of two weeks.
CONFIGURE CHANNEL DEVICE TYPE DISK FORMAT '/disk1/backups/%U';
CONFIGURE CHANNEL DEVICE TYPE sbt PARMS 'ENV=(OB_DEVICE_1=tape1)';
CONFIGURE DEFAULT DEVICE TYPE TO sbt;
CONFIGURE BACKUP OPTIMIZATION ON;
CONFIGURE RETENTION POLICY TO RECOVERY WINDOW OF 14 DAYS;