On Sun, Mar 16, 2014 at 4:17 PM, Marc MERLIN <m...@merlins.org> wrote: > On Sun, Mar 16, 2014 at 05:12:10PM -0600, Chris Murphy wrote: >> >> On Mar 16, 2014, at 4:55 PM, Chris Murphy <li...@colorremedies.com> wrote: >> >> > Then use btrfs replace start. >> >> Looks like in 3.14rc6 replace isn't yet supported. I get "dev_replace cannot >> yet handle RAID5/RAID6". >> >> When I do: >> btrfs device add <new> <mp> >> >> The command hangs, no kernel messages. > > Ok, that's kind of what I thought. > So, for now, with raid5: > - btrfs seems to handle a drive not working > - you say I can mount with the drive missing in degraded mode (I haven't > tried that, I will) > - but no matter how I remove the faulty drive, there is no rebuild on a > new drive procedure that works yet > > Correct?
There was a discussion a while back that suggested that a "balance" would read all blocks and write them out again and that would recover the data. I have no idea if that works or not. Only do this as a last resort once you have already considered all data lost forever. -- To unsubscribe from this list: send the line "unsubscribe linux-btrfs" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html