Re:What Flips Your Bit: Cosmic Ray Errors at Mozilla
by deckard1 on Wednesday April 13, 2022 @04:26PM
(#31019817)
I've always been a bit skeptical of published numbers. I usually just chalk it up to vastly different operating conditions and scale.
On my home server w/ ECC you can check the corrected and uncorrected (multibit) errors. Assuming my Ryzen is correctly reporting them to Linux, I have 0 errors corrected and 0 uncorrected with a 80 day uptime. I've checked a few other times and never seen an error. Others with ECC often report the same.
My understanding of modern RAM is that it has checks built in to the modules which are somewhat equivalent to ECC already (the correcting part, not the reporting part). Which is a necessity in order to hit the density we are at today.
On my home server w/ ECC you can check the corrected and uncorrected (multibit) errors. Assuming my Ryzen is correctly reporting them to Linux, I have 0 errors corrected and 0 uncorrected with a 80 day uptime. I've checked a few other times and never seen an error. Others with ECC often report the same.
My understanding of modern RAM is that it has checks built in to the modules which are somewhat equivalent to ECC already (the correcting part, not the reporting part). Which is a necessity in order to hit the density we are at today.