On Dec 4, 2013, at 1:51 PM, Kyle Evans <kvans32@xxxxxxxxx> wrote: > > 200 Multi_Zone_Error_Rate 0x0008 001 001 051 Old_age Offline FAILING_NOW 27189 The drive is failing. I would only do what's required to get data off the drive and then get rid of it (RMA it if it's under warranty). It's only worth keeping around as an unreliable test subject! Otherwise to answer the question, balance is what you're after. It reads and writes all chunks. As you guessed, scrub is read only unless there's an error that can be corrected. ddrescue will go slowly, because all sectors are being copied, even sectors you probably don't need. So I personally would use rsync or btrfs send, to get the data off the drive rather than every sector, many of which you don't care about. Chris Murphy-- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
