[CentOS] HDD badblocks

Peter peter at pajamian.dhs.org
Tue Jan 19 00:39:34 UTC 2016


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On 19/01/16 12:34, J Martin Rushton wrote:
> Not new: I can remember seeing DEC engineers cleaning up the
> contacts on memory boards for a VAX 11/782 with a pencil eraser
> c.1985.  It's still a pretty standard first fix to reseat a card or
> connector.

I used to do that as well.  The contacts would come out nice and shiny
when you clean them.  Then I found out that what I was actually doing
was removing the very thin layer of gold plating on the contacts and
revealing the copper underneath.  That's why you should never clean
contacts with a pencil eraser, just re-seat the boards and they'll
make contact again.


Peter
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