文档解释
ORA-19919: encrypted backups to tertiary storage require Oracle Secure Backup
Cause: RMAN was configured to create encrypted backups, but the channel is neither a DISK channel nor an Oracle Secure Backup channel.
Action: Allocate a DISK channel or an Oracle Secure Backup channel to use backup encryption.
ORA-19919: ‘encrypted backups to teritary storage require Oracle Secure Backup’ 错误消息表明，在尝试使用 RMAN 将加密的备份文件复制到具有第三方存储的远程备份设备时发生了错误。
官方解释
常见案例
RMAN> backup as copy encrypted device type sbttl tape device ‘/dev/rmt0000’;
您尝试将加密备份文件复制到具有第三方存储的远程备份设备。如果您没有安装并配置 Oracle Secure Backup，则会收到此错误消息。
