Want to reformat, but get Data error (cyclic redundancy check) on drive
Posted on 2005-04-18
I have a Windows XP machine. I bought a Maxtor 120 GB external drive and have been using it to do backups with Retrospect. Recently, Retrospect has been failing and I went to investigate and am now stuck. I need your help!
Retrospect backups failed and when investigating, I realized there are problems with the Maxtor drive. I tried to reformat using the XP Disk Management tool, but it always fails in the middle. So I tried running chkdsk e: /r /f /v and that also hung in stage 3 of 5.
I have deleted/copied to my "normal" drive everything I care about -- I just want to clear off whatever space is usable on this drive and get it set back up for backing up my "real" drive every night. However, I can't seem to reformat it or get rid of the bad sectors. If I try to delete things via a cmd window I get this:
E:\Retrospect\Backup Set C\1-Backup Set C>del *
E:\Retrospect\Backup Set C\1-Backup Set C\*, Are you sure (Y/N)? y
E:\Retrospect\Backup Set C\1-Backup Set C\AA000059.rdb
Data error (cyclic redundancy check).
E:\Retrospect\Backup Set C\1-Backup Set C\AA000062.rdb
The file or directory is corrupted and unreadable.
(it repeats like this)
Can anyone provide advice for what to do? Do I need to throw away this drive? Can I fix bad sectors and keep using it? Googling led me to using Norton Disk Doctor, but it doesn't seem to be a product any more -- but that suggests there IS some way of fixing this.
1) Could there be something wrong on my "normal" C: drive that is also a problem, so that when it gets backed up, I end up with the problem on E:, too?
2) What is a bad sector, anyway? I primarily want a practical solution here: "what do I do to fix this" but I'm also curious and would love an explanation of what happened here and what this all means from an abstract point of view (what IS a bad sector, anyway, and why can't I just reformat).