Content based storage

2010-03-16 Thread David Brown
Hi, I was wondering if there has been any thought or progress in content-based storage for btrfs beyond the suggestion in the Project ideas wiki page? The basic idea, as I understand it, is that a longer data extent checksum is used (long enough to make collisions unrealistic), and merge

Re: Saving and restoring btrfs snapshots

2010-03-16 Thread Goffredo Baroncelli
Hi Chris On Monday 15 March 2010, Chris Mason wrote: On Fri, Mar 12, 2010 at 07:30:01PM +0100, Goffredo Baroncelli wrote: On Friday 12 March 2010, Pat Patterson wrote: Are there any plans to implement something akin to ZFS send/recv, to be able to create a stream representation of a

Re: [GIT PULL] Btrfs updates

2010-03-16 Thread Chris Mason
On Mon, Mar 15, 2010 at 03:18:07PM -0400, Chris Mason wrote: Hello everyone, The master branch of the btrfs unstable tree has a collection of fixes and features: git://git.kernel.org/pub/scm/linux/kernel/git/mason/btrfs-unstable.git master I've updated the master tree with 3 small fixes.

Re: Content based storage

2010-03-16 Thread Fabio
Some years ago I was searching for that kind of functionality and found an experimental ext3 patch to allow the so-called COW-links: http://lwn.net/Articles/76616/ There was a discussion later on LWN http://lwn.net/Articles/77972/ an approach like COW-links would break POSIX standards. I am

Re: Content based storage

2010-03-16 Thread Hubert Kario
On Tuesday 16 March 2010 10:21:43 David Brown wrote: Hi, I was wondering if there has been any thought or progress in content-based storage for btrfs beyond the suggestion in the Project ideas wiki page? The basic idea, as I understand it, is that a longer data extent checksum is used