Re: Plans for BTRFS in Fedora

2011-03-06 Thread Neal Becker
I've noticed scary reports regarding fragmentation on btrfs, some fairly recent (within last 6 months). I'm interested in considering btrfs for my next f15 install, but should I be concerned about this issue? Is it expected to be resolved? -- devel mailing list devel@lists.fedoraproject.org

Re: Plans for BTRFS in Fedora

2011-03-04 Thread James Ralston
On 2011-02-26 at 17:33-05 Lyos Gemini Norezel lyos.gemininore...@gmail.com wrote: On 02/23/2011 06:38 PM, James Ralston wrote: Separate LVM logical volumes can help mitigate consumption-based DoS attacks. For example: if /tmp and /var/tmp are separate LVM logical volumes, then a

BTRFS vs LVM for VM storage (was: Re: Plans for BTRFS in Fedora)

2011-03-02 Thread Richard W.M. Jones
On Tue, Feb 22, 2011 at 02:51:50PM -0500, Josef Bacik wrote: 2) Fedora 16 ships without LVM as the volume manager and instead use BTRFS's built in volume management, again just for the default. Sorry I'm a bit late on this gentle discussion, but I have one question about this: I use LVM to

Re: BTRFS vs LVM for VM storage (was: Re: Plans for BTRFS in Fedora)

2011-03-02 Thread Josef Bacik
On Wed, Mar 2, 2011 at 9:23 AM, Richard W.M. Jones rjo...@redhat.com wrote: On Tue, Feb 22, 2011 at 02:51:50PM -0500, Josef Bacik wrote: 2) Fedora 16 ships without LVM as the volume manager and instead use BTRFS's built in volume management, again just for the default. Sorry I'm a bit late on

Re: Plans for BTRFS in Fedora

2011-02-28 Thread Jon Masters
On Sat, 2011-02-26 at 17:33 -0500, Lyos Gemini Norezel wrote: On 02/23/2011 04:37 PM, Kevin Kofler wrote: And I'd like to counter-counter-propose that we just stop using ANY kind of subvolumes or volume management by default and just default to plain old partitions. IMHO, LVM causes more

Re: Plans for BTRFS in Fedora

2011-02-28 Thread Josef Bacik
On Mon, Feb 28, 2011 at 1:10 PM, Jon Masters jonat...@jonmasters.org wrote: On Sat, 2011-02-26 at 17:33 -0500, Lyos Gemini Norezel wrote: On 02/23/2011 04:37 PM, Kevin Kofler wrote: And I'd like to counter-counter-propose that we just stop using ANY kind of subvolumes or volume management

Re: Plans for BTRFS in Fedora

2011-02-28 Thread Przemek Klosowski
On 02/26/2011 05:33 PM, Lyos Gemini Norezel wrote: This subvolume nonsense has no real place on any home computer/consumer device. ... Having more than 3 partitions on ANY system other than production servers seems foolish at best. To have it as default on a modern operating system is

Re: Plans for BTRFS in Fedora

2011-02-26 Thread Lyos Gemini Norezel
On 02/23/2011 04:37 PM, Kevin Kofler wrote: And I'd like to counter-counter-propose that we just stop using ANY kind of subvolumes or volume management by default and just default to plain old partitions. IMHO, LVM causes more problems than it fixes. Sure, you can easily add storage from

Re: Plans for BTRFS in Fedora

2011-02-26 Thread Adam Williamson
On Sat, 2011-02-26 at 17:33 -0500, Lyos Gemini Norezel wrote: Having more than 3 partitions on ANY system other than production servers seems foolish at best. To have it as default on a modern operating system is nothing short of insanity. I'm not sure why your mail is so strident,

Re: Plans for BTRFS in Fedora

2011-02-26 Thread Matej Cepl
Dne 27.2.2011 06:51, Adam Williamson napsal(a): I'm not sure why your mail is so strident, because we don't default to that. The default Fedora layout is either /boot , swap , / or /boot , swap , / , and /home . Okay, that last one is four, but only if you count swap. He confuses mountpoints

Re: Plans for BTRFS in Fedora

2011-02-25 Thread Matěj Cepl
Dne 24.2.2011 20:54, Ric Wheeler napsal(a): Can we have pointers to these crashes or BZ reports please? As Josef has noted, btrfs has been quite stable in our testing and we are certainly going to pursue any reports. Will do ... I am hesitant to do so, because so many of my previous bug

Re: Plans for BTRFS in Fedora

2011-02-25 Thread Peter Robinson
On Thu, Feb 24, 2011 at 7:54 PM, Ric Wheeler rwhee...@redhat.com wrote: On 02/24/2011 08:44 AM, Matej Cepl wrote: Dne 23.2.2011 20:49, Matthew Garrett napsal(a): btrfs does the former without anywhere near as much of the latter. BTRFS so far only makes my kernel panicking as it did anytime I

Re: Plans for BTRFS in Fedora

2011-02-25 Thread Ric Wheeler
On 02/25/2011 04:06 AM, Peter Robinson wrote: On Thu, Feb 24, 2011 at 7:54 PM, Ric Wheelerrwhee...@redhat.com wrote: On 02/24/2011 08:44 AM, Matej Cepl wrote: Dne 23.2.2011 20:49, Matthew Garrett napsal(a): btrfs does the former without anywhere near as much of the latter. BTRFS so far only

Re: Plans for BTRFS in Fedora

2011-02-25 Thread Peter Robinson
On Fri, Feb 25, 2011 at 1:31 PM, Ric Wheeler rwhee...@redhat.com wrote: On 02/25/2011 04:06 AM, Peter Robinson wrote: On Thu, Feb 24, 2011 at 7:54 PM, Ric Wheelerrwhee...@redhat.com  wrote: On 02/24/2011 08:44 AM, Matej Cepl wrote: Dne 23.2.2011 20:49, Matthew Garrett napsal(a): btrfs

Re: Plans for BTRFS in Fedora

2011-02-25 Thread Ric Wheeler
On 02/25/2011 08:52 AM, Peter Robinson wrote: On Fri, Feb 25, 2011 at 1:31 PM, Ric Wheelerrwhee...@redhat.com wrote: On 02/25/2011 04:06 AM, Peter Robinson wrote: On Thu, Feb 24, 2011 at 7:54 PM, Ric Wheelerrwhee...@redhat.comwrote: On 02/24/2011 08:44 AM, Matej Cepl wrote: Dne 23.2.2011

Re: Plans for BTRFS in Fedora

2011-02-25 Thread Eric Sandeen
On 2/25/11 2:54 AM, Matěj Cepl wrote: Dne 24.2.2011 20:54, Ric Wheeler napsal(a): Can we have pointers to these crashes or BZ reports please? As Josef has noted, btrfs has been quite stable in our testing and we are certainly going to pursue any reports. Will do ... I am hesitant to do so,

Re: Plans for BTRFS in Fedora

2011-02-25 Thread Matthew Miller
On Thu, Feb 24, 2011 at 02:25:26PM +0100, Lennart Poettering wrote: snapshotted every time we perform a package/admin operation (and perhaps also just on regular intervals for good measure), what would we then gain by adding a read-only rootfs to the mix? Security, robustness: you can be

Re: Plans for BTRFS in Fedora

2011-02-24 Thread Matej Cepl
Dne 23.2.2011 20:49, Matthew Garrett napsal(a): btrfs does the former without anywhere near as much of the latter. BTRFS so far only makes my kernel panicking as it did anytime I have been trying it since Fedora 9 (yes, I am crazy). This is absolutely not meant as anything personal against Josef

Re: Plans for BTRFS in Fedora

2011-02-24 Thread Peter Jones
On 02/23/2011 06:01 PM, James Ralston wrote: On 2011-02-23 at 13:41-05 Peter Jonespjo...@redhat.com wrote: dm-crypt still just throws REQ_FLUSH away instead of figuring out the block remaps involved and issuing the right bios. Of course, this is a problem with dm-crypt and _any_ filesystem.

Re: Plans for BTRFS in Fedora

2011-02-24 Thread James Ralston
On 2011-02-23 at 23:32-06 Michael Cronenworth m...@cchtml.com wrote: On 02/23/2011 05:38 PM, James Ralston wrote: None of these issues is a dealbreaker, but they *are* losses of functionality versus what LVM offers. LVM isn't going anywhere. It just won't be the default during a fresh

Re: Plans for BTRFS in Fedora

2011-02-24 Thread Ric Wheeler
On 02/24/2011 08:44 AM, Matej Cepl wrote: Dne 23.2.2011 20:49, Matthew Garrett napsal(a): btrfs does the former without anywhere near as much of the latter. BTRFS so far only makes my kernel panicking as it did anytime I have been trying it since Fedora 9 (yes, I am crazy). This is absolutely

Re: Plans for BTRFS in Fedora

2011-02-24 Thread Josef Bacik
On Thu, Feb 24, 2011 at 8:44 AM, Matej Cepl mc...@redhat.com wrote: Dne 23.2.2011 20:49, Matthew Garrett napsal(a): btrfs does the former without anywhere near as much of the latter. BTRFS so far only makes my kernel panicking as it did anytime I have been trying it since Fedora 9 (yes, I am

Re: Plans for BTRFS in Fedora

2011-02-24 Thread James Ralston
On 2011-02-24 at 16:02-05 Josef Bacik jo...@toxicpanda.com wrote: I think that if I could get a large base to test for F15 that we could squash most/all of the problems that crop up from that to be in great shape for default in F16. I think you'd increase your chances of getting lots of

Re: Plans for BTRFS in Fedora

2011-02-23 Thread Jóhann B. Guðmundsson
On 02/23/2011 01:26 AM, Josef Bacik wrote: Various things, better data integrity to start with, and if you install the yum-fs-snapshot you have the ability to rollback easily. So we got the above + What Lennart mentioned as benefits to the end user. Now if we continue to hang on to the

Re: Plans for BTRFS in Fedora

2011-02-23 Thread Josh Boyer
On Tue, Feb 22, 2011 at 10:25 PM, Jon Masters jonat...@jonmasters.org wrote: On Tue, 2011-02-22 at 14:51 -0500, Josef Bacik wrote: 2) Fedora 16 ships without LVM as the volume manager and instead use BTRFS's built in volume management, again just for the default. In my personal opinion, this

Re: Plans for BTRFS in Fedora

2011-02-23 Thread Lennart Poettering
On Tue, 22.02.11 22:25, Jon Masters (jonat...@jonmasters.org) wrote: On Tue, 2011-02-22 at 14:51 -0500, Josef Bacik wrote: 2) Fedora 16 ships without LVM as the volume manager and instead use BTRFS's built in volume management, again just for the default. In my personal opinion, this

Re: Plans for BTRFS in Fedora

2011-02-23 Thread Josef Bacik
On Tue, Feb 22, 2011 at 10:25 PM, Jon Masters jonat...@jonmasters.org wrote: On Tue, 2011-02-22 at 14:51 -0500, Josef Bacik wrote: 2) Fedora 16 ships without LVM as the volume manager and instead use BTRFS's built in volume management, again just for the default. In my personal opinion, this

Re: Plans for BTRFS in Fedora

2011-02-23 Thread Josef Bacik
On Tue, Feb 22, 2011 at 11:57 PM, Bruno Wolff III br...@wolff.to wrote: On Tue, Feb 22, 2011 at 14:51:50 -0500,  Josef Bacik jo...@toxicpanda.com wrote: 3) All the various little tools that we have for putting together LiveCD's that are very ext* centered.  I've not even looked at this yet,

Re: Plans for BTRFS in Fedora

2011-02-23 Thread drago01
On Wed, Feb 23, 2011 at 4:25 AM, Jon Masters jonat...@jonmasters.org wrote: On Tue, 2011-02-22 at 14:51 -0500, Josef Bacik wrote: 2) Fedora 16 ships without LVM as the volume manager and instead use BTRFS's built in volume management, again just for the default. In my personal opinion, this

Re: Plans for BTRFS in Fedora

2011-02-23 Thread Camilo Mesias
Hi I wanted to second these questions... 2011/2/22 Jóhann B. johan...@gmail.com: Will there be any performance penalties making this move? [...] What benefit will this switch bring to the novice desktop end users? Will the novice desktop end user ever take advantages of any of the features

Re: Plans for BTRFS in Fedora

2011-02-23 Thread Josef Bacik
On Wed, Feb 23, 2011 at 8:29 AM, Camilo Mesias cam...@mesias.co.uk wrote: Hi I wanted to second these questions... 2011/2/22 Jóhann B. johan...@gmail.com: Will there be any performance penalties making this move? [...] What benefit will this switch bring to the novice desktop end users?

Re: Plans for BTRFS in Fedora

2011-02-23 Thread Camilo Mesias
Josef, On Wed, Feb 23, 2011 at 1:42 PM, Josef Bacik jo...@toxicpanda.com wrote: Your impression is wrong, there has been quite a bit of work done to make BTRFS work well on small devices, it is the default filesystem for meego which goes on phones, which is much smaller than anything you are

Re: Plans for BTRFS in Fedora

2011-02-23 Thread Peter Jones
On 02/22/2011 10:25 PM, Jon Masters wrote: On Tue, 2011-02-22 at 14:51 -0500, Josef Bacik wrote: 2) Fedora 16 ships without LVM as the volume manager and instead use BTRFS's built in volume management, again just for the default. In my personal opinion, this is a poor design decision. Yes,

Re: Plans for BTRFS in Fedora

2011-02-23 Thread John Reiser
On 02/23/2011 05:07 AM, drago01 wrote: Defaults should be chooses on the metric what provides the best experience for the users not based on what we have been doing in the past (i.e stagnation). *One* data corruption constitutes EPIC FAIL. Btrfs is too young, and will be for yet a while

Re: Plans for BTRFS in Fedora

2011-02-23 Thread Josef Bacik
On Wed, Feb 23, 2011 at 9:18 AM, John Reiser jrei...@bitwagon.com wrote: On 02/23/2011 05:07 AM, drago01 wrote: Defaults should be chooses on the metric what provides the best experience for the users not based on what we have been doing in the past (i.e stagnation). *One* data corruption

Re: Plans for BTRFS in Fedora

2011-02-23 Thread Nathaniel McCallum
On Wed, 2011-02-23 at 09:27 -0500, Josef Bacik wrote: On Wed, Feb 23, 2011 at 9:18 AM, John Reiser jrei...@bitwagon.com wrote: On 02/23/2011 05:07 AM, drago01 wrote: Defaults should be chooses on the metric what provides the best experience for the users not based on what we have been doing

Re: Plans for BTRFS in Fedora

2011-02-23 Thread Dennis Jacobfeuerborn
On 02/23/2011 03:27 PM, Josef Bacik wrote: On Wed, Feb 23, 2011 at 9:18 AM, John Reiserjrei...@bitwagon.com wrote: On 02/23/2011 05:07 AM, drago01 wrote: Defaults should be chooses on the metric what provides the best experience for the users not based on what we have been doing in the past

Re: Plans for BTRFS in Fedora

2011-02-23 Thread Eric Sandeen
On 2/23/11 5:38 AM, Jóhann B. Guðmundsson wrote: On 02/23/2011 01:26 AM, Josef Bacik wrote: Various things, better data integrity to start with, and if you install the yum-fs-snapshot you have the ability to rollback easily. So we got the above + What Lennart mentioned as benefits to the end

Re: Plans for BTRFS in Fedora

2011-02-23 Thread Josef Bacik
On Wed, Feb 23, 2011 at 10:19 AM, Dennis Jacobfeuerborn denni...@conversis.de wrote: On 02/23/2011 03:27 PM, Josef Bacik wrote: On Wed, Feb 23, 2011 at 9:18 AM, John Reiserjrei...@bitwagon.com  wrote: On 02/23/2011 05:07 AM, drago01 wrote: Defaults should be chooses on the metric what provides

Re: Plans for BTRFS in Fedora

2011-02-23 Thread Jóhann B. Guðmundsson
On 02/23/2011 03:33 PM, Josef Bacik wrote: I'm actually not that worried about corruption as that is something that can be fixed once discovered. What creeps me out about btrfs at the moment is this:

Re: Plans for BTRFS in Fedora

2011-02-23 Thread Simo Sorce
On Wed, 23 Feb 2011 10:33:26 -0500 Josef Bacik jo...@toxicpanda.com wrote: On Wed, Feb 23, 2011 at 10:19 AM, Dennis Jacobfeuerborn denni...@conversis.de wrote: On 02/23/2011 03:27 PM, Josef Bacik wrote: On Wed, Feb 23, 2011 at 9:18 AM, John Reiserjrei...@bitwagon.com  wrote: On

Re: Plans for BTRFS in Fedora

2011-02-23 Thread Jon Masters
On Wed, 2011-02-23 at 07:15 -0500, Josh Boyer wrote: On Tue, Feb 22, 2011 at 10:25 PM, Jon Masters jonat...@jonmasters.org wrote: On Tue, 2011-02-22 at 14:51 -0500, Josef Bacik wrote: 2) Fedora 16 ships without LVM as the volume manager and instead use BTRFS's built in volume management,

Re: Plans for BTRFS in Fedora

2011-02-23 Thread Lennart Poettering
On Wed, 23.02.11 11:41, Jon Masters (jonat...@jonmasters.org) wrote: You seem to spend a lot of time during your installs undoing all the new things that were done for the release. Perhaps a rapid changing, bleeding-edge distribution isn't quite suited to your needs. Maybe you would be

Re: Plans for BTRFS in Fedora

2011-02-23 Thread Peter Jones
On 02/23/2011 11:41 AM, Jon Masters wrote: Again, I feel the solution is to have a Fedora architect whose role is to realize the problems caused by seemingly isolated changes, and stop them from propagating. Fedora historically relies on an open source model for this - there are a lot of

Re: Plans for BTRFS in Fedora

2011-02-23 Thread Jesse Keating
On 2/23/11 5:00 AM, Josef Bacik wrote: This would be a great thing in general since the default ext* image is shrunk down to be installed which creates a bad fs layout which has performance implications. Can you expand upon this more? The filesystem is shrunk down when the live image is

Re: Plans for BTRFS in Fedora

2011-02-23 Thread Lars Seipel
On Wednesday 23 February 2011 15:07:55 Peter Jones wrote: 1) can btrfs do encrypted volumes? Not yet. Although this was a planned feature at some point, according to Josef, nobody has done it yet. If you want to stack it on top of dm-crypt there are caveats as well. From btrfs-wiki: btrfs

Re: Plans for BTRFS in Fedora

2011-02-23 Thread Eric Sandeen
On 2/23/11 11:42 AM, Jesse Keating wrote: On 2/23/11 5:00 AM, Josef Bacik wrote: This would be a great thing in general since the default ext* image is shrunk down to be installed which creates a bad fs layout which has performance implications. Can you expand upon this more? The

Re: Plans for BTRFS in Fedora

2011-02-23 Thread Matthew Garrett
On Wed, Feb 23, 2011 at 11:41:49AM -0500, Jon Masters wrote: Again, I feel the solution is to have a Fedora architect whose role is to realize the problems caused by seemingly isolated changes, and stop them from propagating. You don't just replace years of UNIX (or Linux) history/heritage

Re: Plans for BTRFS in Fedora

2011-02-23 Thread Casey Dahlin
On Wed, Feb 23, 2011 at 11:54:58AM -0600, Eric Sandeen wrote: On 2/23/11 11:42 AM, Jesse Keating wrote: On 2/23/11 5:00 AM, Josef Bacik wrote: This would be a great thing in general since the default ext* image is shrunk down to be installed which creates a bad fs layout which has

Re: Plans for BTRFS in Fedora

2011-02-23 Thread Eric Sandeen
On 2/23/11 12:15 PM, Casey Dahlin wrote: On Wed, Feb 23, 2011 at 11:54:58AM -0600, Eric Sandeen wrote: On 2/23/11 11:42 AM, Jesse Keating wrote: On 2/23/11 5:00 AM, Josef Bacik wrote: This would be a great thing in general since the default ext* image is shrunk down to be installed which

Re: Plans for BTRFS in Fedora

2011-02-23 Thread Peter Jones
On 02/23/2011 01:15 PM, Casey Dahlin wrote: On Wed, Feb 23, 2011 at 11:54:58AM -0600, Eric Sandeen wrote: On 2/23/11 11:42 AM, Jesse Keating wrote: On 2/23/11 5:00 AM, Josef Bacik wrote: This would be a great thing in general since the default ext* image is shrunk down to be installed which

Re: Plans for BTRFS in Fedora

2011-02-23 Thread Peter Jones
On 02/23/2011 12:50 PM, Lars Seipel wrote: On Wednesday 23 February 2011 15:07:55 Peter Jones wrote: 1) can btrfs do encrypted volumes? Not yet. Although this was a planned feature at some point, according to Josef, nobody has done it yet. If you want to stack it on top of dm-crypt

BTRFS on servers (was Re: Plans for BTRFS in Fedora)

2011-02-23 Thread Jonathan Dieter
On Wed, 2011-02-23 at 16:19 +0100, Dennis Jacobfeuerborn wrote: I'm actually quite interested in btrfs especially for servers because of it's features For what it's worth, we've been running btrfs on our school fileservers since September. After a few teething problems (fixed by increasing

Re: BTRFS on servers (was Re: Plans for BTRFS in Fedora)

2011-02-23 Thread Josef Bacik
On Wed, Feb 23, 2011 at 2:00 PM, Jonathan Dieter jdie...@lesbg.com wrote: On Wed, 2011-02-23 at 16:19 +0100, Dennis Jacobfeuerborn wrote: I'm actually quite interested in btrfs especially for servers because of it's features For what it's worth, we've been running btrfs on our school

Re: Plans for BTRFS in Fedora

2011-02-23 Thread Chris Adams
Once upon a time, Matthew Garrett mj...@srcf.ucam.org said: LVM is functional for enterprise environments but awful for the common home or office cases. Define awful. I make use of it all the time on home and office desktops and even my notebook computer. It makes it easy to reassign disk

Re: BTRFS on servers (was Re: Plans for BTRFS in Fedora)

2011-02-23 Thread Jonathan Dieter
On Wed, 2011-02-23 at 14:18 -0500, Josef Bacik wrote: On Wed, Feb 23, 2011 at 2:00 PM, Jonathan Dieter jdie...@lesbg.com wrote: On Wed, 2011-02-23 at 16:19 +0100, Dennis Jacobfeuerborn wrote: I'm actually quite interested in btrfs especially for servers because of it's features For what

Re: Plans for BTRFS in Fedora

2011-02-23 Thread Matthew Garrett
On Wed, Feb 23, 2011 at 01:38:05PM -0600, Chris Adams wrote: Define awful. I make use of it all the time on home and office desktops and even my notebook computer. It makes it easy to reassign disk space from purpose A to purpose B (it would be easier if there was a way to shrink a mounted

Re: Plans for BTRFS in Fedora

2011-02-23 Thread Matthew Garrett
On Wed, Feb 23, 2011 at 07:49:49PM +, Matthew Garrett wrote: You can't move PVs. You need a separate /boot. If you use more than one disk then it adds significant fragility to the boot process. It slows down booting. It provides some functionality that's hugely useful in a small number

Re: BTRFS on servers (was Re: Plans for BTRFS in Fedora)

2011-02-23 Thread Josef Bacik
On Wed, Feb 23, 2011 at 2:42 PM, Jonathan Dieter jdie...@lesbg.com wrote: On Wed, 2011-02-23 at 14:18 -0500, Josef Bacik wrote: On Wed, Feb 23, 2011 at 2:00 PM, Jonathan Dieter jdie...@lesbg.com wrote: On Wed, 2011-02-23 at 16:19 +0100, Dennis Jacobfeuerborn wrote: I'm actually quite

Re: Plans for BTRFS in Fedora

2011-02-23 Thread Chris Adams
Once upon a time, Matthew Garrett mj...@srcf.ucam.org said: You can't move PVs. What do you think pvmove does? You need a separate /boot. That's needed for more than just LVM (and probably won't go away, as it is a lot simpler to handle a single method in the installer). If you use more

Re: Plans for BTRFS in Fedora

2011-02-23 Thread Ralf Ertzinger
Hi. On Wed, 23 Feb 2011 13:38:05 -0600, Chris Adams wrote Define awful. I make use of it all the time on home and office desktops and even my notebook computer. It makes it easy to reassign disk space from purpose A to purpose B (it would be easier if there was a way to shrink a mounted

Re: Plans for BTRFS in Fedora

2011-02-23 Thread Matthew Garrett
On Wed, Feb 23, 2011 at 02:08:08PM -0600, Chris Adams wrote: Once upon a time, Matthew Garrett mj...@srcf.ucam.org said: You can't move PVs. What do you think pvmove does? Move PEs from one PV to another. You can't move a PV. You need a separate /boot. That's needed for more than just

Re: Plans for BTRFS in Fedora

2011-02-23 Thread Peter Jones
On 02/23/2011 03:33 PM, Matthew Garrett wrote: On Wed, Feb 23, 2011 at 02:08:08PM -0600, Chris Adams wrote: Once upon a time, Matthew Garrettmj...@srcf.ucam.org said: You can't move PVs. What do you think pvmove does? Move PEs from one PV to another. You can't move a PV. You need a

Re: Plans for BTRFS in Fedora

2011-02-23 Thread Chris Adams
Once upon a time, Matthew Garrett mj...@srcf.ucam.org said: On Wed, Feb 23, 2011 at 02:08:08PM -0600, Chris Adams wrote: Once upon a time, Matthew Garrett mj...@srcf.ucam.org said: You can't move PVs. What do you think pvmove does? Move PEs from one PV to another. You can't move a

Re: Plans for BTRFS in Fedora

2011-02-23 Thread Chris Adams
Once upon a time, Ralf Ertzinger fed...@camperquake.de said: If you never tried the kind of freedom BTRFS and ZFS give you for shifting around disk space, try it. Seriously. Then you'll see where the awful comes from. In perspective it really is. You cut out the parts of my email where I said

Re: Plans for BTRFS in Fedora

2011-02-23 Thread Josef Bacik
On Wed, Feb 23, 2011 at 4:37 PM, Kevin Kofler kevin.kof...@chello.at wrote: Jon Masters wrote: In my personal opinion, this is a poor design decision. Yes, BTRFS can do a lot of volume-y things, and these are growing by the day, but I don't want my filesystem replacing a full volume manager

Re: Plans for BTRFS in Fedora

2011-02-23 Thread Milan Broz
On 02/23/2011 07:41 PM, Peter Jones wrote: On 02/23/2011 12:50 PM, Lars Seipel wrote: If you want to stack it on top of dm-crypt there are caveats as well. Right, which is what we'd wind up doing in the encrypted case. From btrfs-wiki: btrfs volumes on top of dm-crypt block devices (and

Re: Plans for BTRFS in Fedora

2011-02-23 Thread James Ralston
On 2011-02-22 at 14:51-05 Josef Bacik jo...@toxicpanda.com wrote: Fedora 16 ships without LVM as the volume manager and instead use BTRFS's built in volume management, again just for the default. I don't think btrfs subvolumes are capable of replacing LVM functionality quite yet. Here are two

Re: Plans for BTRFS in Fedora

2011-02-23 Thread Rahul Sundaram
On 02/23/2011 01:33 AM, Josef Bacik wrote: Well I don't think cleaning up the existing patches will be that big of a deal, it's mostly a matter of testing. The problem with GRUB2 is it's GPLv3, explicitly to be a giant pain in the ass for porting any new fs to GRUB since we're all GPLv2

Re: Plans for BTRFS in Fedora

2011-02-22 Thread Kevin Fenzi
On Tue, 22 Feb 2011 14:51:50 -0500 Josef Bacik jo...@toxicpanda.com wrote: Hello, So we're getting close to having a working fsck tool so I wanted to take the opportunity to talk about the future of BTRFS in Fedora. ...snip... 1) GRUB support. Edward Shishkin did GRUB1 patches for BTRFS a

Re: Plans for BTRFS in Fedora

2011-02-22 Thread Chris Lumens
1) Fedora 16 ships with BTRFS as the default root filesystem. 2) Fedora 16 ships without LVM as the volume manager and instead use BTRFS's built in volume management, again just for the default. 2) Anaconda support. I've already talked with Will Woods about this some. Really anaconda will

Re: Plans for BTRFS in Fedora

2011-02-22 Thread Josef Bacik
On Tue, Feb 22, 2011 at 3:00 PM, Kevin Fenzi ke...@scrye.com wrote: On Tue, 22 Feb 2011 14:51:50 -0500 Josef Bacik jo...@toxicpanda.com wrote: Hello, So we're getting close to having a working fsck tool so I wanted to take the opportunity to talk about the future of BTRFS in Fedora.

Re: Plans for BTRFS in Fedora

2011-02-22 Thread Chris Lumens
1) GRUB support. Edward Shishkin did GRUB1 patches for BTRFS a while ago, but they were obviously never merged upstream and were also not included into fedora. These would either need to be cleaned up and put into our grub package, or we'd need to put /boot on a different filesystem.

Re: Plans for BTRFS in Fedora

2011-02-22 Thread Genes MailLists
On 02/22/2011 02:51 PM, Josef Bacik wrote: Hello, So we're getting close to having a working fsck tool so I wanted to take the opportunity to talk about the future of BTRFS in Fedora. Coming up in F15 we're going to have the first release of Fedora where ... So what are your thoughts?

Re: Plans for BTRFS in Fedora

2011-02-22 Thread Lennart Poettering
On Tue, 22.02.11 14:51, Josef Bacik (jo...@toxicpanda.com) wrote: Hello, So we're getting close to having a working fsck tool so I wanted to take the opportunity to talk about the future of BTRFS in Fedora. Coming up in F15 we're going to have the first release of Fedora where we don't

Re: Plans for BTRFS in Fedora

2011-02-22 Thread Jim Meyering
[...btrfs and read-only root,/etc...] Music to my ears. Glad you're working on this. -- devel mailing list devel@lists.fedoraproject.org https://admin.fedoraproject.org/mailman/listinfo/devel

Re: Plans for BTRFS in Fedora

2011-02-22 Thread Sam Varshavchik
Josef Bacik writes: 2) Fedora 16 ships without LVM as the volume manager and instead use BTRFS's built in volume management, again just for the default. Just to clarify -- F16 will still have LVM, but not used by default. I believe that there's a huge number of existing systems that are

Re: Plans for BTRFS in Fedora

2011-02-22 Thread B.
On Tue, 2011-02-22 at 14:51 -0500, Josef Bacik wrote: So what are your thoughts? Thanks, Will there be any performance penalties making this move? I ran it on my workstation when F13 came out with updates+snapshots and while updating my desktop responsiveness was well not so good. Novice

Re: Plans for BTRFS in Fedora

2011-02-22 Thread Josef Bacik
On Tue, Feb 22, 2011 at 5:07 PM, Lennart Poettering mzerq...@0pointer.de wrote: On Tue, 22.02.11 14:51, Josef Bacik (jo...@toxicpanda.com) wrote: Hello, So we're getting close to having a working fsck tool so I wanted to take the opportunity to talk about the future of BTRFS in Fedora.

Re: Plans for BTRFS in Fedora

2011-02-22 Thread Josef Bacik
2011/2/22 Jóhann B. johan...@gmail.com: On Tue, 2011-02-22 at 14:51 -0500, Josef Bacik wrote: So what are your thoughts?  Thanks, Will there be any performance penalties making this move? Who knows, thats what testing is for :). There are some things that suck with BTRFS, but so it goes

Re: Plans for BTRFS in Fedora

2011-02-22 Thread Jon Masters
On Tue, 2011-02-22 at 14:51 -0500, Josef Bacik wrote: 2) Fedora 16 ships without LVM as the volume manager and instead use BTRFS's built in volume management, again just for the default. In my personal opinion, this is a poor design decision. Yes, BTRFS can do a lot of volume-y things, and

Re: Plans for BTRFS in Fedora

2011-02-22 Thread Bruno Wolff III
On Tue, Feb 22, 2011 at 14:51:50 -0500, Josef Bacik jo...@toxicpanda.com wrote: 3) All the various little tools that we have for putting together LiveCD's that are very ext* centered. I've not even looked at this yet, but I assume it's going to be kind of a pain. I like to see live CDs