sybase磁带备份问题~~~

[way_hamehame]

我在做磁带备份，先做了个实验，库test,表test
命令如下

1> dump database test to "\\.\TAPE0"
2> with file = "test"
3> go
Backup Server session id is: 12. Use this value when executing the
'sp_volchanged' system stored procedure after fulfilling any volume change
request from the Backup Server.
Backup Server: 6.58.1.1: Device '\\.\TAPE0' supports multiple dump files per
volume set.
Backup Server: 6.52.1.1: OPERATOR: Volume to be overwritten on '\\.\TAPE0' has
unrecognized label data.
Backup Server: 6.78.1.1: EXECUTE sp_volchanged
@session_id = 12,
@devname =
'\\.\TAPE0',
@action = { 'PROCEED' | 'RETRY' | 'ABORT' },
@vname =
<new_volume_name>

接下来就没反映了，请问出了什么问题阿？

[way_hamehame]

up~

[way_hamehame]

我开了另一个命令窗口
1> sp_volchanged 12, '\\.\TAPE0',RETRY
2> go
(0 rows affected)
(return status = 0)
那里重试，还是不行，
Backup Server: 4.141.2.45: [8] The 'GetTapeStatus' call failed for device
'\\.\TAPE0' with error number 1111 (复位 I/O 总线?. Refer to your operating
system documentation for further details.

Backup Server: 4.141.2.45: [8] The 'GetTapeStatus' call failed for device
'\\.\TAPE0' with error number 1167 (设备没有连接?. Refer to your operating
system documentation for further details.

怎么回事啊

[way_hamehame]

在磁带备份前要做什么准备工作瓦？还是像上面一样直接打命令

[dongjh]

应该是磁带库的问题，看你操作系统能否认识到你的磁带库。
再问一下，SYBASE支持增量备份么？