sybase数据库无法restore了(100分)

每次开始restore时都出错，路径和文件都正确
错误如下：
backup server session id is 7 . use this value when executing the
"sp_volchanged" system stored procedure after fulfilling any volume
change request from the backup server

backup server 4.26.2.1 : volume volidation : failed to obtail device
information, device : E:/jndata041.dat error No such file or directory.
error encountered by backup server. please refer to backup server
message for details

把那个文件复制到c盘看
我碰过同样问题，原因是我那个目录设置了安全，不是所有人都可以访问，
虽然当前登录用户可以访问，但仍然出错

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