On Mon, Aug 27, 2018 at 6:38 PM, Chris Murphy <li...@colorremedies.com> wrote:
>> Metadata,single: Size:8.00MiB, Used:0.00B >> /dev/mapper/master-root 8.00MiB >> >> Metadata,DUP: Size:2.00GiB, Used:562.08MiB >> /dev/mapper/master-root 4.00GiB >> >> System,single: Size:4.00MiB, Used:0.00B >> /dev/mapper/master-root 4.00MiB >> >> System,DUP: Size:32.00MiB, Used:16.00KiB >> /dev/mapper/master-root 64.00MiB >> >> Unallocated: >> /dev/mapper/master-root 915.24GiB > > > OK this looks like it maybe was created a while ago, it has these > empty single chunk items that was common a while back. There is a low > risk to clean it up, but I still advise backup first: > > 'btrfs balance start -mconvert=dup <mountpoint>' You can skip this advise now, it really doesn't matter. But future Btrfs shouldn't have both single and DUP chunks like this one is showing, if you're using relatively recent btrfs-progs to create the file system. -- Chris Murphy
