From: Roy Sigurd Karlsbakk <roy@karlsbakk.net>
To: linux-raid <linux-raid@vger.kernel.org>
Subject: Disk speed comparison
Date: Sat, 22 Dec 2012 18:39:51 +0100 (CET) [thread overview]
Message-ID: <27374116.4.1356197991689.JavaMail.root@zimbra> (raw)
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/karlsbakk.net/smilla.karlsbakk.net/index.html that the WD2001FASS drives (sd[bcfg]) 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 so big.
Anyone seen something similar?
Vennlige hilsener / Best regards
roy
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Roy Sigurd Karlsbakk
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next reply other threads:[~2012-12-22 17:39 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-12-22 17:39 Roy Sigurd Karlsbakk [this message]
2012-12-22 17:44 ` Disk speed comparison Roger Heflin
2012-12-22 17:49 ` Roy Sigurd Karlsbakk
2012-12-22 17:53 ` Roger Heflin
2012-12-22 18:07 ` Roy Sigurd Karlsbakk
2012-12-23 0:11 ` Roger Heflin
2012-12-23 4:59 ` Stan Hoeppner
2012-12-23 5:29 ` Roy Sigurd Karlsbakk
2012-12-23 22:04 ` Stan Hoeppner
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