Getting error while extracting linux filesystem

I am using one tape drive in one UNIX server. Daily i used to take backup and weekly also i used to take backup.
When I try to restore one of the UNIX file system from one of the media i am getting error as below
Cannot create file: Not a directory write error extracting inode 14765, name ./sfw/sbin/smbd”.
Can it may be error in server or it may be in the disk.
