From mboxrd@z Thu Jan 1 00:00:00 1970 From: Roy Sigurd Karlsbakk Subject: Disk speed comparison Date: Sat, 22 Dec 2012 18:39:51 +0100 (CET) Message-ID: <27374116.4.1356197991689.JavaMail.root@zimbra> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Sender: linux-raid-owner@vger.kernel.org To: linux-raid List-Id: linux-raid.ids Hi all I have an array with 6 2TB drives plus a spare. While this works well, = I can from the munin graphs at http://munin.karlsbakk.net/munin/karlsba= kk.net/smilla.karlsbakk.net/index.html that the WD2001FASS drives (sd[b= cfg]) perform some 30% better than the Hitachi HDS723020BLA642 drives = (sd[eh]). The drives are on a mixed set of controllers, so this shouldn= 't be relevant. Since they all are specified to spin on 7200RPM, I find= it wierd that the performance difference shown by the Munin graph is s= o big. Anyone seen something similar? 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