错误码：-8029
错误内容：服务器未启动初始化
错误级别: ERROR
原因：初始化实例后为启动过数据库

[dmdba@its01 bin]$ ./dmrman CTLSTMT="BACKUP DATABASE '/dmdbms/data/dataguard/dm.ini' FULL BACKUPSET '/dmdbms/dmbak/full_database'"
dmrman V8
BACKUP DATABASE '/dmdbms/data/dataguard/dm.ini' FULL BACKUPSET '/dmdbms/dmbak/full_database'
file dm.key not found, use default license!
Database mode = 0, oguid = 0
Normal of FAST
Normal of DEFAULT
Normal of RECYCLE
Normal of KEEP
Normal of ROLL
can't backup no initialized database
[-8029]:服务器未启动初始化
[dmdba@its01 bin]$ 

解决方法
1、启动数据库实例后关闭
2、关闭后进行备份