Here's a new one (with kernel 3.18.7++): $btrfs --version Btrfs v3.18.2 (also tried 3.19-rc2)
$mount /dev/sdf1 /mnt/usb $btrfs filesystem df /mnt/usb Data, single: total=8.00MiB, used=256.00KiB System, single: total=32.00MiB, used=16.00KiB Metadata, single: total=1.00GiB, used=112.00KiB GlobalReserve, single: total=16.00MiB, used=0.00B Note: metadata=single - done right after mkfs for the initial balance. $btrfs balance start -mconvert=dup /mnt/usb Done, had to relocate 2 out of 3 chunks root>btrfs filesystem df /mnt/usb Data, single: total=8.00MiB, used=512.00KiB System, single: total=32.00MiB, used=16.00KiB Metadata, single: total=1.00GiB, used=192.00KiB GlobalReserve, single: total=16.00MiB, used=0.00B Wait, what? Still single? This used to work, but somehow no longer does (verified on another filesystem). If it's dup, it stays dup; if it's single, it stays single. What works is the very first balance after the mkfs - it successfully changes from the initial default dup to single, but subsequent balances don't work. They also don't really fail. Any ideas what might have caused this? Must have been a recent patch. Holger -- 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
