On Mon, 26 Jun 2006, Paul Allen wrote:
The very originating purpose of ECC was to keep the computer going in the
face of an alpha particle strike.
Alpha particles flip *single* bits.
ECC was never intended to detect crummy, failing hardware: that's a use
people have shoe-horned it into, but for which it is not entirely suited.
Well, correction is the last 'C' in ECC. Don't forget about second (and more
significant): Check. Error Check actually detects failing memory chips
(structure of the correcting code ensures detection of every 2-bit failure
and most N-bit (N>2)).
Sincerely, Dmitry
--
Atlantis ISP, System Administrator
e-mail: [EMAIL PROTECTED]
nic-hdl: LYNX-RIPE
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