When I try to back up my internal C plus D drives (160 GB Western Digital Raptor as well as 1 TB Hitachi, in that order, utilizing Windows 7's Backup plus Restore program) backing up to an external Lacie drive it takes regarding 24-36 hours to backup the data. Although, going to Device Manager after that Disk Management, it confirms the external drive as being completely healthy in addition to working in general.
Bookmarks