On Tue, Feb 16, 2016 at 08:25:47PM +0100, Christian Völker wrote:

Hi Guys,

sorry for the simple question and I assume every developer here laughs
about this question.

Anyway:

I have read loads of documents but did not find an answer for sure. Even
though I assume I am right.

On a btrfs filesystem created; is it possible to have subvolumes with
data duplication and another subvolume without (resp. with just metadata
duplication)?

   No.

   It may happen at some point, but it's not possible right now.

   Hugo.

I have some large filesystems currently with ext4 and I am thinking of
changing to btrfs. Some of the data is more important than others. So I
want to have data duplication on the important files (sorted in a mount
point) and without for the other subvolume.

So I want to have the advantage of redundancy of important files
combined with the flexibility of the volume manager and shared disk space.

Possible?


GReetings

Christian

-- 
Hugo Mills             | "I don't like the look of it, I tell you."
hugo@... carfax.org.uk | "Well, stop looking at it, then."
http://carfax.org.uk/  |
PGP: E2AB1DE4          |                                             The Goons