Thanks for the reply, Hugh. On Tue, 5 Nov 2024 at 18:29, D. Hugh Redelmeier <hugh@mimosa.com> wrote:
From: David Mason via talk <talk@gtalug.org>
So I want something with at least 5 SST drives for ZFS and a bootable drive not on ZFS (ideally).
SST? Do you mean SSD?
Yes, SSD.
On the Intel side there are LGA1851 socket systems. A reasonably-priced one
is
https://www.canadacomputers.com/en/intel-motherboards/264441/gigabyte-z890-a...
but it doesn't do ECC properly.
What do you mean by "properly"?
As I understand it, all DR5 does single-bit error correction, but it is up to the board/CPU to trap on multi-bit errors. I don't know if DDR5 writes bback the corrected bit, or if that's up to the other components.
At one point I believed that IBM's phrase "chip kill" was relevant. ECC normally detects single-bit errors in a word but in many configurations, one dead chip will take out more than one bit in a word.
All I know is what I said above.
On the AMD side there are sTR5 socket systems. A less reasonably priced one is
https://www.newegg.ca/gigabyte-trx50-aero-d-extended-atx-amd-trx50-am5/p/N82...
but it at least does ECC.
Thread Ripper seems like the opposite of what you want for a cool and quiet home server.
Yes, but finding ECC-aware systems is challenging.
I think that (some?) ordinary Ryzen's support ECC but that not many firmwares do. And perhaps not many chipsets do. Here's a kind of old link to Asus: <https://www.asus.com/support/faq/1045186/>
That was quite helpful. This seems to be closer to what I'm looking for: https://www.newegg.ca/asrock-rack-x570d4u-supports-3rd-gen-amd-ryzen-process... Thanks, ../Dave