Re: ECC RAM really needed?

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От
Andrew Sullivan
Тема
Re: ECC RAM really needed?
Дата
в 11:27:24
Msg-id
20070527142708.GB5979@phlogiston.dyndns.org
Ответ на
Re: ECC RAM really needed? (mark@mark.mielke.cc)
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Дерево обсуждения
ECC RAM really needed? Craig James <craig_james@emolecules.com>
Re: ECC RAM really needed? Bruno Wolff III <bruno@wolff.to>
Re: ECC RAM really needed? Greg Smith <gsmith@gregsmith.com>
Re: ECC RAM really needed? Tom Lane <tgl@sss.pgh.pa.us>
Re: ECC RAM really needed? Michael Stone <mstone+postgres@mathom.us>
Re: ECC RAM really needed? mark@mark.mielke.cc
Re: ECC RAM really needed? Andrew Sullivan <ajs@crankycanuck.ca>
On Sat, May 26, 2007 at 10:52:14AM -0400, mark@mark.mielke.cc wrote:
> Do you want to be the one person who does notice a problem? :-)

Right, and notice that when you notice the problem _may not_ be when
it happens.  The problem with errors in memory (or on disk
controllers, another place not to skimp in your hardware budget for
database machines) is that the unnoticed failure could well write
corrupted data out.  It's some time later that you notice you have
the problem, when you go to look at the data and discover you have
garbage.

If your data is worth storing, it's worth storing correctly, and so
doing things to improve the chances of correct storage is a good
idea.

A

-- 
Andrew Sullivan  | ajs@crankycanuck.ca
Everything that happens in the world happens at some place.
		--Jane Jacobs 
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