Re: 3-way mirrors

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George Spelvin wrote:
This might be useful reading:

http://neil.brown.name/blog/20100211050355

An interesting point of view, BUT...

If I am seeing repeated unexplained mismatches (despite being on a good
UPS and having no unclean shutdowns), then some part of my hardware is
failing, and I'd like to know *what part*.

How about your disk enclosure? I would think that if vibration caused a silent bit flip *on write* you would get a read error (CRC) reading it back. but... I am going on the theory that any factor which causes measurable errors on read is not doing anything good for writes either.

See: http://www.zdnet.com/blog/storage/bad-bad-bad-vibrations/896

--
Bill Davidsen <davidsen@xxxxxxx>
 "We can't solve today's problems by using the same thinking we
  used in creating them." - Einstein

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