From mboxrd@z Thu Jan 1 00:00:00 1970 From: Roy Sigurd Karlsbakk Subject: Re: Use RAID-6! Date: Tue, 16 Apr 2013 19:25:44 +0200 (CEST) Message-ID: <16433059.10.1366133144567.JavaMail.root@zimbra> References: Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: Sender: linux-raid-owner@vger.kernel.org To: Mikael Abrahamsson Cc: Linux RAID List-Id: linux-raid.ids > > Also, maybe this should be on an FAQ/RAID tutorial somewhere? >=20 > Question is, where should it be put so that people read it and > actually > understand it. >=20 > This article is from 2007: >=20 > >=20 > I've had people argue with me that the above article is wrong, but I > never > udnerstood their logic. To me it makes perfect sense and I always go > RAID6. >=20 > I also think the work having more than 2 parity drives was very > promising. > I'd rather have a 20 drive volume with 4 parity drives than to LVM > together two 10 drive RAID6:es (apart from obvious performance > penalties). I've been running RAIDz3 for a backup machine (zfs receive from the mai= n box), and the write performance was rather low. I'd rather use lvm or= raid-something over different raid-6 volumes. Spread out the risk fact= or. With ~8 drives in each raid-6 set, the risk is low enough to allow = for rather large volumes. --=20 Vennlige hilsener / Best regards roy -- Roy Sigurd Karlsbakk (+47) 98013356 roy@karlsbakk.net http://blogg.karlsbakk.net/ GPG Public key: http://karlsbakk.net/roysigurdkarlsbakk.pubkey.txt -- I all pedagogikk er det essensielt at pensum presenteres intelligibelt.= Det er et element=C3=A6rt imperativ for alle pedagoger =C3=A5 unng=C3=A5= eksessiv anvendelse av idiomer med xenotyp etymologi. I de fleste tilf= eller eksisterer adekvate og relevante synonymer p=C3=A5 norsk. -- 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