From mboxrd@z Thu Jan 1 00:00:00 1970 From: Goswin von Brederlow Subject: Re: raid-0 with mdadm vs lvm striping Date: Thu, 13 Aug 2009 04:09:10 +0200 Message-ID: <874osc5ut5.fsf@frosties.localdomain> References: <3ECBDC05781B3D48ABD520A01ABF2F9B2E99EDBB63@SE-EX008.groupinfra.com> <3ECBDC05781B3D48ABD520A01ABF2F9B2E9A0485D5@SE-EX008.groupinfra.com> <87vdkt4e5x.fsf@frosties.localdomain> <3ECBDC05781B3D48ABD520A01ABF2F9B2E9A048A82@SE-EX008.groupinfra.com> Mime-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: (Billy Crook's message of "Wed, 12 Aug 2009 11:00:51 -0500") Sender: linux-raid-owner@vger.kernel.org To: Billy Crook Cc: "Henry, Andrew" , "goswin-v-b@web.de" , Drew , "linux-raid@vger.kernel.org" List-Id: linux-raid.ids Billy Crook writes: > On Wed, Aug 12, 2009 at 04:14, Henry, Andrew= wrote: >> That's what my question was: =A0Will raid0 (striping) be faster or e= asier to manage than lvm striping > > LVM striping won't change performance for small files. (That is files= , > smaller than the extent size.) To be fair, RAID-0 striping won't > accelerate file access for files smaller than the stripe size either. > However, traditionally, raid0 stripe sizes are much much smaller than > LVM extent sizes. Both are however adjustable. That sucks. LVM striping really should have a setting where it stripes chunks within a PE. MfG Goswin -- 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