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From: Joe Thornber <thornber@sistina.com>
To: Marcelo Tosatti <marcelo.tosatti@cyclades.com>
Cc: Joe Thornber <thornber@sistina.com>,
	Linux Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: Device-mapper submission for 2.4
Date: Tue, 9 Dec 2003 14:34:12 +0000	[thread overview]
Message-ID: <20031209143412.GI472@reti> (raw)
In-Reply-To: <Pine.LNX.4.44.0312091206490.1289-100000@logos.cnet>

On Tue, Dec 09, 2003 at 12:10:06PM -0200, Marcelo Tosatti wrote:
> 
> 
> On Tue, 9 Dec 2003, Joe Thornber wrote:
> 
> > On Tue, Dec 09, 2003 at 11:15:08AM -0200, Marcelo Tosatti wrote:
> > > I believe 2.6 is the right place for the device mapper. 
> > 
> > So what's the difference between a new filesystem like XFS and a new
> > device driver like dm ?
> 
> Expected question... 
> 
> XFS is a totally different filesystem from the ones present in 2.4. 
> 
> As far as I know, we already have the similar functionality in 2.4 with
> LVM. Device mapper provides the same functionality but in a much cleaner
> way. Is that right?

Sort of, but please take into account the fact that the LVM1 driver
has bugs (particularly on the failure paths), and EVMS and other
volume managers dont use the LVM1 driver.  The snapshot target (which
I didn't include in the core patches) is hugely better performance
wise.

- Joe

  reply	other threads:[~2003-12-09 14:32 UTC|newest]

Thread overview: 55+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-12-09 11:58 Device-mapper submission for 2.4 Joe Thornber
2003-12-09 12:24 ` [Patch 1/4] fs.h: b_journal_head Joe Thornber
2003-12-09 23:46   ` Nathan Scott
2003-12-10  8:46     ` Joe Thornber
2003-12-10 12:06       ` Nathan Scott
2003-12-09 12:25 ` [Patch 2/4] dm: mempool backport Joe Thornber
2003-12-09 12:26 ` [Patch 3/4] dm: core files Joe Thornber
2003-12-09 12:26 ` [Patch 4/4] dm: ioctl interface Joe Thornber
2003-12-09 13:15 ` Device-mapper submission for 2.4 Marcelo Tosatti
2003-12-09 13:45   ` Joe Thornber
2003-12-09 14:00     ` Måns Rullgård
2003-12-09 14:10       ` Muli Ben-Yehuda
2003-12-09 14:21         ` Måns Rullgård
2003-12-09 14:16       ` Joe Thornber
2003-12-09 14:24       ` Stefan Smietanowski
2003-12-09 14:10     ` Marcelo Tosatti
2003-12-09 14:34       ` Joe Thornber [this message]
2003-12-09 21:07         ` Paul Jakma
2003-12-09 22:26           ` Joe Thornber
2003-12-09 22:48             ` Marcelo Tosatti
2003-12-09 23:46               ` Paul Jakma
2003-12-09 23:58                 ` William Lee Irwin III
2003-12-10  0:15                   ` Paul Jakma
2003-12-10 11:49                     ` Stephan von Krawczynski
2003-12-10 23:15                     ` Dave Jones
2003-12-10  0:27                 ` Jose Luis Domingo Lopez
2003-12-10  0:59                   ` Tupshin Harper
2003-12-10  9:40                     ` Wichert Akkerman
2003-12-10  2:44                 ` Martin J. Bligh
2003-12-10 15:55                   ` Paul Jakma
2003-12-10 16:54                     ` venom
2003-12-10 17:00                       ` Paul Jakma
2003-12-10 17:14                         ` venom
2003-12-10 23:40                         ` Mike Fedyk
2003-12-11 19:48                           ` Alasdair G Kergon
2003-12-16 19:15                     ` bill davidsen
2003-12-16 19:01                 ` bill davidsen
2003-12-10  8:45             ` Jens Axboe
2003-12-10 17:30               ` Paul Jakma
2003-12-10 17:44                 ` Joe Thornber
2003-12-10 17:48                   ` venom
2003-12-10 18:07                   ` Paul Jakma
2003-12-10 19:30                   ` Jens Axboe
2003-12-09 17:02       ` Bill Rugolsky Jr.
2003-12-09 22:53         ` Ciaran McCreesh
2003-12-10  3:38         ` Lincoln Dale
2003-12-10  6:12           ` Willy Tarreau
2003-12-10  6:35             ` viro
2003-12-09 17:45       ` Kevin Corry
2003-12-09 19:47         ` Paul P Komkoff Jr
2003-12-09 14:23     ` Stefan Smietanowski
2003-12-09 14:36       ` Joe Thornber
2003-12-09 19:50 ` William Lee Irwin III
2003-12-09 21:13   ` Paul Jakma
2003-12-10  0:49 Carl-Daniel Hailfinger

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