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How Important is ECC Memory?
(sh.itjust.works)
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this post was submitted on 04 Jul 2023
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DDR5 has built in data checking which is ECC without the automatic correction which might be worthwhile depending on your setup.
Your ECC on the pi i believe isn't for the memory chip but for the on chip die's cache for ARM.
For me personally, if my racked server supports it, I get ECC. If it doesn't, I don't sweat it. Redundance in drives, power, and networking is much more important to me and are order of magnitudes higher chance of failing from my anecdotal experience. If I can save those dollars for another higher probably failure, I do that.
DNS is a lynchpin of my network (and wife approval factor) which I splurge a bit for with physical redundance of an identical mini computer that runs it and fail over to same ip if the first box fails. Those considerations are way before if the server has ECC. Just my $0.02.
Thanks for the feedback! Yea think a ZFS redundancy + Backup will do for my application then. From what I am reading here it is less common than I imagined
It's extremely common in Enterprise where costs for a 100k+ server isn't the most expensive part of running, maintaining, servicing said server. If your home lab isn't practicing 3-2-1 backups (at least three copies of your data, two local (on-site) but on different media/devices, and at least one copy off-site) yet, I'd spend money on that before ECC.