Re: BTRFS backup questions

2014-09-29 Thread James Pharaoh
On 27/09/14 18:59, Hugo Mills wrote: 2. Duplicating NOCOW files Are you trying to cross a mount-point with that? It works for me: Here's a script which replicates what I'm doing: https://gist.github.com/jamespharaoh/d693067ffd203689ebea And here's the output when I run it:

BTRFS backup questions

2014-09-27 Thread James Pharaoh
Hi, I'm trying to build a backup solution for a highly virtualized server environment, based on BTRFS. I have a lot of questions which I can't find the answers to, and have included some of the most important ones here. 1. Simultaneous snapshots I would really like to snapshot multiple

Re: BTRFS backup questions

2014-09-27 Thread Hugo Mills
On Sat, Sep 27, 2014 at 05:39:07PM +0200, James Pharaoh wrote: Hi, I'm trying to build a backup solution for a highly virtualized server environment, based on BTRFS. I have a lot of questions which I can't find the answers to, and have included some of the most important ones here. 1.

Re: BTRFS backup questions

2014-09-27 Thread James Pharaoh
On 27/09/14 18:17, Hugo Mills wrote: On Sat, Sep 27, 2014 at 05:39:07PM +0200, James Pharaoh wrote: 2. Duplicating NOCOW files This is obviously possible, since it takes place when you make a snapshot. So why can't I create a clone of a snapshot of a NOCOW file? I am hoping the answer to

Re: BTRFS backup questions

2014-09-27 Thread Hugo Mills
On Sat, Sep 27, 2014 at 06:33:58PM +0200, James Pharaoh wrote: On 27/09/14 18:17, Hugo Mills wrote: On Sat, Sep 27, 2014 at 05:39:07PM +0200, James Pharaoh wrote: 2. Duplicating NOCOW files This is obviously possible, since it takes place when you make a snapshot. So why can't I create a