From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Brown Subject: Re: What's the typical RAID10 setup? Date: Fri, 04 Feb 2011 12:34:00 +0100 Message-ID: References: <20110131192858.GD27952@www2.open-std.org> <4D4718E1.9040607@hardwarefreak.com> <20110131203725.GB2283@www2.open-std.org> <4D475AB5.10600@hardwarefreak.com> <20110203110428.GA26762@www2.open-std.org> <4D4B3DAE.3070502@hardwarefreak.com> <20110204070613.GA3788@www2.open-std.org> <4D4BB87A.30800@hardwarefreak.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: <4D4BB87A.30800@hardwarefreak.com> Sender: linux-raid-owner@vger.kernel.org To: linux-raid@vger.kernel.org List-Id: linux-raid.ids On 04/02/2011 09:27, Stan Hoeppner wrote: > Keld J=F8rn Simonsen put forth on 2/4/2011 1:06 AM: > >> Well RAID1+0 is not the best combination available. I would argue th= at >> raid10,f2 is significantly better in a number of areas. > > I'd guess Linux software RAID would be lucky to have 1% of RAID deplo= yments > worldwide--very lucky. The other 99%+ are HBA RAID or SAN/NAS "appli= ances" most > often using custom embedded RTOS with the RAID code written in assemb= ler, > especially in the case of the HBAs. For everything not Linux mdraid,= RAID 10 > (aka 1+0) is king of the hill, and has been for 15 years+ > I wonder what sort of market penetration small cheap SAN/NAS=20 "appliances" have these days, aimed at the home markets and small=20 offices. These are almost invariably Linux md raid devices, although=20 the user views them as an black-box appliance. However, though they use md raid, they typically don't support RAID10,=20 RAID1+0, RAID10,f2, or anything other than RAID0, RAID1 and RAID5. -- 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