From mboxrd@z Thu Jan 1 00:00:00 1970 From: Iustin Pop Subject: Re: OT: silent data corruption reading from hard drives Date: Thu, 2 Aug 2012 14:26:56 +0200 Message-ID: <20120802122656.GA25242@teal.hq.k1024.org> References: <50191ADE.10809@fastmail.fm> <5019D052.4000409@hardwarefreak.com> <20120802091917.32fb0ca5@natsu> <501A316C.3020305@hardwarefreak.com> <20120802140634.6f729d07@natsu> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <20120802140634.6f729d07@natsu> Sender: linux-raid-owner@vger.kernel.org To: Roman Mamedov Cc: stan@hardwarefreak.com, matt , linux-raid@vger.kernel.org List-Id: linux-raid.ids On Thu, Aug 02, 2012 at 02:06:34PM +0600, Roman Mamedov wrote: > I do not recommend using hardware RAID. It locks you into one card/vendor, > usually is much less flexible than mdadm, and often even provides lower > performance. See http://linux.yyz.us/why-software-raid.html While that *can* be the case, I haven't ever seen md beating a HW RAID adapter with battery-backed write-cache in certain metadata-intensive workloads, so as usual it depends on what kind of HW raid you have, and what performance you measure. Broad descriptions are not very helpful. regards, iustin