抱歉。 搞错了联机备份 脱机备份。 把连接备份放在dmrman中操作了
backup database 'dm.ini文件绝对路径' full to "DB_DAMENG_FULL_2021_09_28_22_37_43" backupset '/r2/dmdata/DAMENG/bak' compressed level 1;
backup database 'dm.ini文件绝对路径' full to "DB_DAMENG_FULL_2021_09_28_22_37_43" backupset '/r2/dmdata/DAMENG/bak' compressed level 1;