Re: btrfs and ECC RAM

David Sterba
2014-01-23T16:00:37Z

On Mon, Jan 20, 2014 at 01:17:08AM +0100, George Eleftheriou wrote:
> Without having further knowledge on that matter, I tend to believe
> (but I hope I'm wrong) that BTRFS is as vulnerable as ZFS to memory
> errors. Since I upgraded recently, it's a bit too late for purchasing
> ECC-capable infrastructure (change of CPU + motherboard + RAM) so I
> just chose to ignore this risk by performing a memtest86 right before
> every scrub (and having my regular backups ready).

Also, I haven't seen it mentioned in the thread, scrub can also run in
read-only mode:

$ btrfs scrub start -r /mnt

so you can do a safe RO pass before a RW one and examine the reported
problems before they get fixed automatically.