The problem associated with the Seagate ST3000DM001 3TB hard disk drive have been known for several years. Seagate were the first manufacturer to use platters each capable of storing 1TB of data in a drive. This high density however was a problem and soon became apparent in these drives when used in a desktop. These drives were however, also extensively used in the Seagate GoFlex range of external USB drives.
With USB drives often only connected occasionally and some stock still available through some retail outlets, these issues have taken a lot longer to become apparent. While Seagate have made a tool available for download, which may give you access to your data, its use is a risk. If the data on contained on the drive is important our recommendation is to send it to a professional data recovery company, such as DiskEng.
We have seen many examples of this type of drive, from its use in desktops, RAIDs and servers along with a recent increase in those used in the GoFlex USB enclosure. We have had a high success rate in recovering data from these drives, with data loss usually only occurring when an attempt has been made to recover the data by the customer before being sent for data recovery.