[saltman]

x2 you can reformat. and yes it will work for awhile. but it's toast. plain and simple. I just had the same problems except it was a drive in a 4 disc array. considered suicide as an option in troubleshooting. but went with the replace all drives option. I formatted the other four and they worked fine for about 2 months. then started to have issues. slowly narrowed it down to one and then took it outside and set it on fire.... boy did it feel good. If it's a new drive send it back. if it's an old drive, format it and ONLY use it for stuff you won't miss when it goes bad.