请帮助我解决dump失败的问题(急)

wq2259

免费乐捐，感谢支持

我有两个数据库，1个建在HP800服务器上，OS版本：HP-UX 10.20,1个建在HP700工作站
上，OS版本：HP-UX 10.20。
两个数据库配置一样，详细为：
Database Name:db112
Device: /dev/vg04/rdb112_data_dev 4G
/dev/vg04/rdb112_data_dev 3G
/dev/vg04/rdb112_log_dev 1G
两个数据的SQL SERVER 版本都为SYBASE 11 。

我在HP800服务器上dump磁带成功，用该磁带在HP700工作站上做load成功，但在HP700
工作站上再做dump磁带时失败。
我的磁带机为HP/DDS2标准格式。我用的dump命令格式为：dump database db112 to
"/dev/rmt/0mn" with capacity=8388608,init 。
错误日志为：
Sat Nov 12 08:08:49 EAT 2005:start to dump database db112 to tape,wait...
Backup Server session id is: 23. 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 '/dev/rmt/0mn' supports multiple dump files
per
volume set.
Backup Server: 6.28.1.1: Dumpfile name 'db1120531607291 ' section number
0001
mounted on tape drive '/dev/rmt/0mn'
Backup Server: 4.82.2.20: Operating system error, server device
/dev/vg04/rdb112_data_dev: code 246 message Operation would block.
Backup Server: 4.82.2.16: Operating system error, server device
/dev/vg04/rdb112_data_dev: code 134217728 message Unknown.
Backup Server: 4.82.2.20: Operating system error, server device
/dev/vg04/rdb112_data_dev: code 246 message Operation would block.
Backup Server: 4.82.2.16: Operating system error, server device
/dev/vg04/rdb112_data_dev: code 134217728 message Unknown.
Backup Server: 4.82.2.20: Operating system error, server device
/dev/vg04/rdb112_data_dev: code 246 message Operation would block.
Backup Server: 4.82.2.16: Operating system error, server device
/dev/vg04/rdb112_data_dev: code 134217728 message Unknown.
Backup Server: 4.82.2.20: Operating system error, server device
/dev/vg04/rdb112_data_dev: code 246 message Operation would block.