From mboxrd@z Thu Jan 1 00:00:00 1970 From: Christian Pedaschus Subject: Re: Large single raid and XFS or two small ones and EXT3? Date: Fri, 23 Jun 2006 18:41:35 +0200 Message-ID: <449C19BF.7060500@gmx.de> References: <449AEB7C.6040108@cjx.com> <449BE381.6070000@cjx.com> <200606231701.44803.a1426z@gawab.com> <20060623160602.GK5817@schatzie.adilger.int> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20060623160602.GK5817@schatzie.adilger.int> Sender: linux-raid-owner@vger.kernel.org To: Andreas Dilger Cc: Al Boldi , linux-raid@vger.kernel.org, linux-fsdevel@vger.kernel.org List-Id: linux-raid.ids Andreas Dilger wrote: >On Jun 23, 2006 17:01 +0300, Al Boldi wrote: > > >>Chris Allen wrote: >> >> >>>Francois Barre wrote: >>> >>> >>>>2006/6/23, PFC : >>>> >>>> >>>>> - ext3 is slow if you have many files in one directory, but >>>>>has more mature tools (resize, recovery etc) >>>>> >>>>> > >Please use "mke2fs -O dir_index" or "tune2fs -O dir_index" when testing >ext3 performance for many-files-in-dir. This is now the default in >e2fsprogs-1.39 and later. > > for ext3 use (on unmounted disks): tune2fs -O has_journal -o journal_data /dev/{disk} tune2fs -O dir_index /dev/{disk} if data is on the drive, you need to run a fsck afterwards and it uses a good bit of ram, but it makes ext3 a good bit faster. and my main points for using ext3 is still: "it's a very mature fs, nobody will tell you such horrible storys about data-lossage with ext3 than with any other filesystem." and there are undelete tools for ext3. so if you're for data-integrity (i guess you are, else you would not use raid, or? ;) ), use ext3 and if you need the last single kb/s get a faster drive or use lots of them with a good raid-combo and/or use a separate disk for the journal (man 8 tune2fs) my 0.5 cents, greets chris ps. but you know, filesystem choosage is not pure science, it's half-religion :D >Cheers, Andreas >-- >Andreas Dilger >Principal Software Engineer >Cluster File Systems, Inc. > >- >To unsubscribe from this list: send the line "unsubscribe linux-raid" in >the body of a message to majordomo@vger.kernel.org >More majordomo info at http://vger.kernel.org/majordomo-info.html > > > >