I have a broken 4TB NTFS Seagate HDD with thousands of tiff images with measurement data:
Ubuntu Disk tells me, "Disk is OK, one bad sector", Contents: "Unknown".
The BIOS doesn't recognize the disk. Windows Explorer doesn't recognize it either.
But the Windows Disk Management shows Disk "Unknown / Not initialized / Unallocated'.
I am currently trying to make an image of the broken HDD with ddrescue:
"ddrescue -n /dev/sda /media/ubuntu/NewHDD/rescue.img /media/ubuntu/USB/rescue.log"
I used the "-n" command to copy as much healthy data as possible in a first run and skip trimming. I want to try to copy the unhealthy data in a later run with "ddrescue -r3". According to Ubuntu.com / Forensics Wiki this should be the way to go.
Since I started this over an hour ago, I get the following ddrescue terminal output:
current rate: 0 B/s average rate: 0 B/s error rate: 393 B/S
rescued: 0 B
non-trimmed: 1746 MB non-scraped: 0 B bad-sector: 0 B
As far as I understand this means that up to now no healthy data was found, otherwise rescued would be > 0B.
Based on Ubuntu Disks statement of one Bad sector is seems strange to me that nothing could be restored yet. And further, only this first run takes approximately 111 days based on the speed of the first hour. The time for the intensive trimming phase is not even included.
Has anyone any ideas why this takes so long? What might be wrong? Or any other ideas? I can't wait over three months just to complete the first step.
Thanks :-)