Yes. Amorphous diamond coatings are applied to (some) hard drives. But I'll bet the replacement order from Sun didn't happen until after the warranty was over :). <br><br>Diamond dust in the drive factory would be a major fubar event. The platter coating process by default must be kept away from everything else int he factory as it does make sub-micron size "clinkers" that are diamond-like and can thus be a major contaminant. <br>
<br><div class="gmail_quote">On Wed, Jan 27, 2010 at 2:48 PM, Greg Freemyer <span dir="ltr"><<a href="mailto:greg.freemyer@gmail.com">greg.freemyer@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
On Wed, Jan 27, 2010 at 11:40 AM, Lightner, Jeff <<a href="mailto:jlightner@water.com">jlightner@water.com</a>> wrote:<br>
<snip><br>
<div class="im">> Identical manufacture dates can be a problem for disks. At a prior job<br>
> we had a Sun D1000 array and ultimately were told by Sun that all the<br>
> drives in that array needed to be replaced due to "diamond dust" in the<br>
> factory at the time of manufacture. (We had several other of these<br>
> arrays that never saw the same level of issues.) I'm not sure I ever<br>
> believed the "diamond dust" explanation as Sun was the same company that<br>
> tried to blame "cosmic rays" for the E10K CPU debacle. However, it is a<br>
> fact that after we replaced all the drives in that array it quit having<br>
> such a high level of disk failure.<br>
<br>
</div>It's my understanding that laptop drives in particular are coated with<br>
a fine layer of diamond in order handle the banging around they get.<br>
So it is not unreasonable that they got a bunch dust in the wrong<br>
place.<br>
<font color="#888888"><br>
Greg<br>
</font><div><div></div><div class="h5"><br>
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