sybase：dump时无法导出数据！

zxw_xuewei

操作系统：Cent OS 4.3。
数据库版本：Sybase 11.0.3

isql登录后执行如下代码：

dump tran master with no_log go dump database master to "/home/databak/bak_data/master.dat" go

界面上显示如下错误：

1. WARNING: In order to LOAD the master database, the SQL Server must run in
   
2. single-user mode.  If the master database dump uses multiple volumes, you must
   
3. execute sp_volchanged on another SQL Server at LOAD time in order to signal
   
4. volume changes.
   
5. Backup Server session id is:  19.  Use this value when executing the
   
6. 'sp_volchanged' system stored procedure after fulfilling any volume change
   
7. request from the Backup Server.
   
8. Backup Server: 4.41.1.1: Creating new disk file
   
9. /home/databak/bak_data/master.dat.
   
10. Backup Server: 4.128.2.1: Failed to start multibuffering subprocesses for
    
11. archive device '/home/databak/bak_data/master.dat'. Look at the Backup Server
    
12. error log or standard error for more information.
    
13. Msg 8009, Level 16, State 1:
    
14. Line 1:
    
15. Error encountered by Backup Server.  Please refer to Backup Server messages for
    
16. details.

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backup.log文件中的错误如下：

1. Feb  2 14:48:27 2008: Backup Server: 4.41.1.1: Creating new disk file /home/databak/bak_data/master.dat.
   
2. Feb  2 14:48:27 2008: A00: SYBMULTBUF ERROR: get_membufs: zero-filled buffer unavailable, System error=Bad file descriptor
   
3. Feb  2 14:48:27 2008: Backup Server: 4.128.2.1: Failed to start multibuffering subprocesses for archive device '/home/databak/bak_data/master.dat'. Look at the Backup Server error log or standard error for more information.
   

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errorlog 文件中无相关非正常信息！

希望CU的兄弟们给予解答，谢谢!

hobbylu

增加文件描述符的大小