急救啊！备份数据库到磁带的过程中途报错！

elephants

这段时间晚上，备份rspos数据库到磁带的过程中途报错，信息如下：

'/dev/rmt/ntape1' with error number 5 (i/o error), refer to your operating system documentation for further details.

备份到硬盘可以，备份master数据库到磁带可以，就是不能备份rspos数据库到磁带！

现象：开头还正常，大约在dump了600M左右的地方开始报错，然后就一直报错下去。

我找IBM换过磁带机，找人买了新磁带，反复试了都没用，'/dev/rmt/ntape1' 也存在，备份语句更是不可能有问题。

忘了说我是sco unixware 7.1.1 + sybase ASE 11.x, ibm服务器是x232 + RAID5 + DDS4。 rspos是用户数据库，数据已有10G。

百思不得其解，个人感觉应是操作系统方面的问题，有无高手，帮我解决！！！！      

yddll

看看操作系统的日志,应该是在/var下面有一些吧

备master没问题应该是因为master小,我觉得

检查一下scsi驱动程序

yddll

rspos做dump出来大概有多大，可不可以考虑先备份到硬盘上试试？

elephants

谢谢你的帮助，我现在就是备份到硬盘的，18G的硬盘占了12G。
我不清楚操作系统的日志在哪，看了/var/webtop/log下的文件，有个error.log的信息如下，不知有没有关系，另外有时出现/usr/bin/ksh: agreement: not found 的提示，能帮我看看是怎么回事吗？
2005/05/15 08:41:55.430        (pid 1154)       
Tarantella(1.3) ERROR:
database/rename/failed
Failed to rename because old pathname is included in new pathname: rename("/var/webtop/database/database/_dns/hmjjh" to "/var/webtop/database/database/_dns/hmjjh/hmjjh": (22) Invalid argument
2005/05/17 20:46:28.530        (pid 1152)       
Tarantella(1.3) ERROR:
database/rename/failed
Failed to rename because old pathname is included in new pathname: rename("/var/webtop/database/database/_dns/hmjjh" to "/var/webtop/database/database/_dns/hmjjh/hmjjh": (22) Invalid argument
2005/05/20 08:42:13.620        (pid 114       
Tarantella(1.3) ERROR:
database/rename/failed
Failed to rename because old pathname is included in new pathname: rename("/var/webtop/database/database/_dns/hmjjh" to "/var/webtop/database/database/_dns/hmjjh/hmjjh": (22) Invalid argument
2005/05/20 08:47:24.020        (pid 1150)       
Tarantella(1.3) ERROR:
database/rename/failed
Failed to rename because old pathname is included in new pathname: rename("/var/webtop/database/database/_dns/hmjjh" to "/var/webtop/database/database/_dns/hmjjh/hmjjh": (22) Invalid argument