Re: How does btrfs handle bad blocks in raid1?

[George Mitchell]

I really suspect a lot of bad block issues can be avoided by monitoring 
SMART data.  SMART is working very well for me with btrfs formatted 
drives.  SMART will detect when sectors silently fail and as those 
failures accumulate, SMART will warn in an obvious way that the drive in 
question is at end of life.  So I think the whole bad block issue should 
ideally be handled at a lower level than filesystem with modern hard drives.
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