I have a basic understanding of what happens when bad sectors appear: the hdd's firmware marks these sectors and substitutes them with some spare ones and all seems pretty transparent. From that disk utility it seems that 3 bad sectors are already substituted and 4 are not. I ran an error checking (and fixing) utility on both windows and linux but these numbers did not change.
More about : bad sectors hdd
- root@ubuntu:/# dd if=/dev/zero of=/dev/sdb
- dd: writing to `/dev/sdb': Input/output error
- 6162633+0 records in
- 6162632+0 records out
- 3155267584 bytes (3.2 GB) copied, 315.073 s, 10.0 MB/s