From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Pocock Subject: Re: md RAID with enterprise-class SATA or SAS drives Date: Thu, 10 May 2012 22:37:52 +0000 Message-ID: <4FAC4340.1060003@pocock.com.au> References: <4FAAE8F1.8000600@pocock.com.au> <4FABC7C6.4030107@turmel.org> <4FAC2FF2.5060305@hardwarefreak.com> <4FAC40BC.1060300@hesbynett.no> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <4FAC40BC.1060300@hesbynett.no> Sender: linux-raid-owner@vger.kernel.org To: David Brown Cc: stan@hardwarefreak.com, Phil Turmel , Marcus Sorensen , linux-raid@vger.kernel.org List-Id: linux-raid.ids On 10/05/12 22:27, David Brown wrote: > On 10/05/12 23:15, Stan Hoeppner wrote: >> On 5/10/2012 8:51 AM, Phil Turmel wrote: >> >>> Hardware RAID cards usually offer battery-backed write cache, which is >>> very valuable in some applications. I don't have a need for that kind >>> of performance, so I can't speak to the details. (Is Stan H. >>> listening?) >> >> Yes, I'm here to drop the hammer, and start a flame war. ;) I've been >> lurking and trying to stay out of the fray, but you "keep dragging me >> back in!" --Michael Corleone >> >> I find the mere existence of this thread a bit comical, as with all >> others that have preceded it. I made the comment on this list quite >> some time ago that md raid is mostly used by hobbyists, and took a lot >> of heat for that. The existence of this thread adds ammunition to that >> argument. >> > > I think you've got that a bit backwards. Most hobbyists (or low-budget > users) who use raid other than motherboard fakeraid will choose Linux md > raid. It may well be that most users of md raid /are/ hobby or > low-budget users. But your implication - that professionals don't use > md raid - is completely wrong. > > It's more likely that it is hobby users that discuss these sorts of > things - professionals just pay the money that the server manufacturer > asks for its supported disks, since paying that is cheaper than spending > time discussing things. I know I mostly follow lists like this in my > free time (as a hobbiest) rather than in work time (as a professional). > The more scary thing is that many professionals are afraid to look at (or ask questions on) a list like this because they don't want to look like they didn't know something