求助sybase备份master库不成功

bomb1969

菜鸟问题，望高手指点。
目的，删除老数据库，重建数据库。
听人说删除数据库前需要备份master库，所以
出现了如下情况：
1> dump database master to '/backup/masterbf.dump'
2> go
WARNING: In order to LOAD the master database, the SQL Server must run in single-user mode.  If the master database dump uses multiple volumes, you must execute sp_volchanged on another SQL Server at LOAD time in order to signal volume changes.
Msg 7205, Level 17, State 2:
Server 'SYBASE', Line 1:
Can't open a connection to site 'SYB_BACKUP'.  See the error log file in the SQL Server boot directory.
Msg 7205, Level 18, State 3:
Server 'SYBASE', Line 1:
Can't open a connection to site 'SYB_BACKUP'.  See the error log file in the SQL Server boot directory.
请哪位前辈指点一下                                                                                       

Eisen

backup server没启动

wz19860629

可能配置的备份服务名称不是SYB_BACKUP,要在sybase  central中设下。