Here's A New One (For Me)
by inventivemind - 1/9/09 2:07 PM
I do computer repairs here and there.. but this was even new for me. A buddy I know from the local videoe store asked me about recovering data from his hard drive that apparently crashed on him one day. He was told that a company would recover his data for $800.00. To this he asked for the hard drive back thinking it was too much money he asked me to take a look at it. The drive is a 2.5" SATA drive about 160GB's. I proceeded to uncover the drive to reveal the internal platter and see its condition. Well, low and behold.. something I had never seen before. Usually a hard drive platter is more like a mirror, and is incredibly smooth and clear of anything ie., dust particles. Well, what I uncovered was a typical platter or internal disc and it was like a mirror but the difference was that right about mid-point on the platter there was a rather deep groove that went completely 360' around the center of the platter and when I plugged the drive in to power it up the head reader arm didn't move nor did the drive show up in 'my computer' however the vista os did recognize the drive and show it installed on the taskbar but that was it. The drive was otherwise inaccessible even through the c:/prompt. If you ask me the only thing vista installed was the sata connector that was connected to the defunct drive.
So, whats with this groove at mid-point and all around the disc? did the head fix itself at that point somehow and did the disc spin causing a groove in an otherwise very hard surface such as a hard drive platter? Or, is this groove meant to be there?
When powered on via a usb wire the platter did spin and while the head arm reader didn't move .. hey I gave it a push.. once I did this the arm proceeded normally across the platter of course stopping at the groove and then the platter spin came to a stop. I also tried to start the arm beyond the groove but it came backward to the groove again. Hmm this is an odd job. I think the guy's going to have to throw this one away. I doubt any device could read this after the groove effect.