Re: Offline Deduplication for Btrfs

2011-01-06 Thread Mike Hommey
On Thu, Jan 06, 2011 at 10:37:46AM +0100, Tomasz Chmielewski wrote: I have been thinking a lot about de-duplication for a backup application I am writing. I wrote a little script to figure out how much it would save me. For my laptop home directory, about 100 GiB of data, it was a couple of

Re: What to do about subvolumes?

2010-12-01 Thread Mike Hommey
On Wed, Dec 01, 2010 at 09:21:36AM -0500, Josef Bacik wrote: 1) Users need to be able to create their own subvolumes. The permission semantics will be absolutely the same as creating directories, so I don't think this is too tricky. We want this because you can only take snapshots of

Re: What to do about subvolumes?

2010-12-01 Thread Mike Hommey
On Wed, Dec 01, 2010 at 11:01:37AM -0500, Chris Mason wrote: Excerpts from C Anthony Risinger's message of 2010-12-01 09:51:55 -0500: On Wed, Dec 1, 2010 at 8:21 AM, Josef Bacik jo...@redhat.com wrote: === How do we want subvolumes to work from a user perspective? === 1) Users need

Re: What to do about subvolumes?

2010-12-01 Thread Mike Hommey
On Wed, Dec 01, 2010 at 04:38:00PM +, Hugo Mills wrote: On Wed, Dec 01, 2010 at 09:21:36AM -0500, Josef Bacik wrote: === Quotas === This is a huge topic in and of itself, but Christoph mentioned wanting to have an idea of what we wanted to do with it, so I'm putting it here.

Re: btrfs and apt package manager in ubuntu

2010-11-01 Thread Mike Hommey
On Sun, Oct 31, 2010 at 11:21:36AM -0500, Christian wrote: On Sun, 2010-10-31 at 16:17 +0300, Abdullah Ansari wrote: it's very slow in installtion with apt in ubuntu I'm seeing the same thing. When installing using apt the disk grinds forever before the installation completes. I have two

Re: Can you please define snapshot and subvolume?

2010-10-09 Thread Mike Hommey
On Thu, Oct 07, 2010 at 11:13:18PM +0200, Goffredo Baroncelli wrote: On Thursday, 07 October, 2010, David Nicol wrote: On Thu, Oct 7, 2010 at 8:18 AM, Mike Hommey m...@glandium.org wrote: BTW, it would be very useful to be able to turn existing directories into subvolumes. does

Re: Can you please define snapshot and subvolume?

2010-10-07 Thread Mike Hommey
On Thu, Oct 07, 2010 at 08:30:31AM -0400, Jérôme Poulin wrote: Just to tell you one of my use case, I do compilations of OpenWRT on a Btrfs filesystem, when I snapshot, I only snapshot the subvolume where all the sources are instead of the whole root filesystem, and when I need a snapshot of

Re: btrfs user survey?

2010-09-28 Thread Mike Hommey
On Mon, Sep 27, 2010 at 06:44:10PM -0400, Chris Ball wrote: Hi Francis, Well, all in all, you get the idea, and I'm probably not the guy to craft questions for such a survey. But having input from as large a panel of users as possible would be a nice thing to have. Your