Re: btrfs and ECC RAM

Russell Coker
2014-01-24T23:57:54Z

On Sun, 19 Jan 2014 12:20:22 George Mitchell wrote:
> I can easily imagine btrfs
> taking a system down due to memory error, but not btrfs causing data
> corruption due to a memory error.

I had a system which had apparently worked OK on Ext4 but had some memory
errors. After twice having a serious BTRFS corruption (needed backup-format-
restore) I ran memtest and found that a DIMM was broken.

In that sort of situation it seems that BTRFS is likely to be more fragile due
to the more complex data structures and due to the fact that it's a newer
filesystem with less corner cases handled.

That said, it's working well for me on a few systems without ECC RAM.

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