From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dexter Filmore Subject: Re: below 10MB/s write on raid5 Date: Mon, 11 Jun 2007 15:28:11 +0200 Message-ID: <200706111528.11828.Dexter.Filmore@gmx.de> References: <200706111446.55813.Dexter.Filmore@gmx.de> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: Content-Disposition: inline Sender: linux-raid-owner@vger.kernel.org To: Justin Piszcz Cc: linux-raid@vger.kernel.org List-Id: linux-raid.ids On Monday 11 June 2007 14:47:50 Justin Piszcz wrote: > On Mon, 11 Jun 2007, Dexter Filmore wrote: > > I recently upgraded my file server, yet I'm still unsatisfied with the > > write speed. > > Machine now is a Athlon64 3400+ (Socket 754) equipped with 1GB of RAM. > > The four RAID disks are attached to the board's onbaord sATA controller > > (Sil3114 attached via PCI) > > Kernel is 2.6.21.1, custom on Slackware 11.0. > > RAID is on four Samsung SpinPoint disks, has LVM, 3 volumes atop of each > > XFS. > > > > The machine does some other work, too, but still I would have suspected > > to get into the 20-30MB/s area. Too much asked for? > > > > Dex > > What do you get without LVM? Hard to tell: the PV hogs all of the disk space, can't really do non-LVM tests. -- -----BEGIN GEEK CODE BLOCK----- Version: 3.12 GCS d--(+)@ s-:+ a- C++++ UL++ P+>++ L+++>++++ E-- W++ N o? K- w--(---) !O M+ V- PS+ PE Y++ PGP t++(---)@ 5 X+(++) R+(++) tv--(+)@ b++(+++) DI+++ D- G++ e* h>++ r* y? ------END GEEK CODE BLOCK------ http://www.stop1984.com http://www.againsttcpa.com