From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Majed B." Subject: Re: LVM and Raid5 Date: Wed, 16 Sep 2009 13:20:40 +0300 Message-ID: <70ed7c3e0909160320j68c792d2g8ba01ac3c34eaae5@mail.gmail.com> References: <87ocpb5hft.fsf@frosties.localdomain> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: <87ocpb5hft.fsf@frosties.localdomain> Sender: linux-raid-owner@vger.kernel.org To: Goswin von Brederlow Cc: Linux Raid Study , linux-raid@vger.kernel.org List-Id: linux-raid.ids Hello, I'm the one who ran those tests with LVM vs. RAID5 and I think I have faced speed difference because I have disks of varying speeds (different models and vendors), and I believe that LVM gets crippled down to the speed of the slowest disk. On Wed, Sep 16, 2009 at 1:09 PM, Goswin von Brederlow wrote: > Linux Raid Study writes: > >> Hello: >> >> Has someone experimented with LVM and Raid5 together (on say, 2.6.27= )? >> Is there any performance drop if LVM/Raid5 are combined vs Raid5 alo= ne? >> >> Thanks for your inputs! > > Has always worked perfectly for me and i can't say I noticed any > performance change. > > MfG > =C2=A0 =C2=A0 =C2=A0 =C2=A0Goswin > -- > 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 =C2=A0http://vger.kernel.org/majordomo-info.ht= ml > --=20 Majed B. -- To unsubscribe from this list: send the line "unsubscribe linux-raid" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html