From mboxrd@z Thu Jan 1 00:00:00 1970 From: Al Boldi Subject: Re: Large single raid and XFS or two small ones and EXT3? Date: Fri, 23 Jun 2006 17:01:44 +0300 Message-ID: <200606231701.44803.a1426z@gawab.com> References: <449AEB7C.6040108@cjx.com> <449BE381.6070000@cjx.com> Mime-Version: 1.0 Content-Type: text/plain; charset="windows-1256" Content-Transfer-Encoding: 7bit Cc: linux-fsdevel@vger.kernel.org Return-path: Received: from [212.33.163.243] ([212.33.163.243]:38154 "EHLO raad.intranet") by vger.kernel.org with ESMTP id S1750714AbWFWOB5 (ORCPT ); Fri, 23 Jun 2006 10:01:57 -0400 To: linux-raid@vger.kernel.org In-Reply-To: <449BE381.6070000@cjx.com> Content-Disposition: inline Sender: linux-fsdevel-owner@vger.kernel.org List-Id: linux-fsdevel.vger.kernel.org Chris Allen wrote: > Francois Barre wrote: > > 2006/6/23, PFC : > >> - XFS is faster and fragments less, but make sure you have a > >> good UPS > > > > Why a good UPS ? XFS has a good strong journal, I never had an issue > > with it yet... And believe me, I did have some dirty things happening > > here... > > > >> - ReiserFS 3.6 is mature and fast, too, you might consider it > >> - ext3 is slow if you have many files in one directory, but > >> has more > >> mature tools (resize, recovery etc) > > > > XFS tools are kind of mature also. Online grow, dump, ... > > > >> I'd go with XFS or Reiser. > > > > I'd go with XFS. But I may be kind of fanatic... > > Strange that whatever the filesystem you get equal numbers of people > saying that they have never lost a single byte to those who have had > horrible corruption and would never touch it again. We stopped using XFS > about a year ago because we were getting kernel stack space panics under > heavy load over NFS. It looks like the time has come to give it another > try. If you are keen on data integrity then don't touch any fs w/o data=ordered. ext3 is still king wrt data=ordered, albeit slow. Now XFS is fast, but doesn't support data=ordered. It seems that their solution to the problem is to pass the burden onto hw by using barriers. Maybe XFS can get away with this. Maybe. Thanks! -- Al