Re: ECC RAM really needed?

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От Tom Lane
Тема Re: ECC RAM really needed?
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Msg-id 29812.1180153167@sss.pgh.pa.us
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Ответ на Re: ECC RAM really needed?  (Greg Smith <gsmith@gregsmith.com>)
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Greg Smith <gsmith@gregsmith.com> writes:
> The paper I would recommend is
> http://www.tezzaron.com/about/papers/soft_errors_1_1_secure.pdf
> which is a summary of many other people's papers, and quite informative.
> I know I had no idea before reading it how much error rates go up with
> increasing altitute.

Not real surprising if you figure the problem is mostly cosmic rays.

Anyway, this paper says

> Even using a relatively conservative error rate (500 FIT/Mbit), a
> system with 1 GByte of RAM can expect an error every two weeks;

which should pretty much cure any idea that you want to run a server
with non-ECC memory.

            regards, tom lane

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