Jul 17, 2023 · For instance HDDs use ECC, and that use of ECC is entirely self-contained to the drive. But your conclusion is simply incorrect. The data bus doesn't have the extra width for the ECC,, nor does the CPU have the time or logic to perform the check and correction. The memory ECC would be handled at the memory module level.

ECC RAM is designed to aid in preventing and fixing memory based errors, usually using some sort of hamming code or modular redundancy. This is very useful in servers that contained important data, or need high availability, but it comes at a cost.

Mar 22, 2021 · If ECC memory was helpful twenty years ago presumably it would be more helpful now that PCs are running with 1-2 orders of magnitude more memory, at lower voltages and with smaller physical features that (presumably) are more …

If your data is corrupted in memory before it is written, ZFS will happily write (and checksum) the corrupted data. Additionally, ZFS has no pre-mount consistency checker or tool that can repair filesystem damage. [...] If a non-ECC memory module goes haywire, it can cause irreparable damage to your ZFS pool that can cause complete loss of the ...

"Registered ECC > Unbuffered ECC" No/sometimes. Unbuffered/unregistered ECC will actually be faster. Buffered/registered ECC will be at least one register action slower but you can add more DIMMs to a memory channel. (And more memory CAN make your system faster, even if latency increases). So rather then a hard "Yes/no" the proper answer is "it ...

Mar 24, 2015 · inxi can do that: # On this desktop PC non ECC-RAM modules are used, so it outputs `EC: None`: $ sudo inxi -m -xxx Memory: Array-1 capacity: 32 GB devices: 4 EC: None Device-1: ChannelA-DIMM0 size: 4 GB speed: 1333 MHz type: DDR3 (Synchronous) bus width: 64 bits manufacturer: Kingston part: KHX1600C9D3/4GX serial: B7ED5A53 # This server has …

May 7, 2009 · Interesting that most memory errors were hard -- hard memory errors are unrecoverable, meaning the memory has to be physically replaced as failed, whereas soft memory errors can be fixed by overwriting the memory with the correct value. This indicates to me the value of ECC is fairly limited.

Oct 1, 2023 · ECC Memory can correct small errors (bit flips), this is typically used for applications where data integrity is important. Buffered memory can help prevent errors by placing a register between the controller and memory modules, again, this is typically used for applications where data integrity is important.

Oct 21, 2016 · For example, on a Ryzen-based system with ECC memory installed and enabled in the BIOS (if applicable), you may see a line which looks like amd64: Node 0: DRAM ECC enabled. – Joe Commented Feb 26, 2020 at 14:58

Oct 22, 2017 · The memory module I'm looking to acquire is a 1Rx4 PC3L-12800R-11-13-C2 8 gig module made by Hynix. What does the "E" and the "R" stand for, and what are the chances that the memory is compatible with current memory and server (I'm speculating the E is ECC, the R is registered, but I don't understand what the difference is - if there is any).