From: Krzysztof Halasa <khc@pm.waw.pl>
To: Rogier Wolff <R.E.Wolff@BitWizard.nl>
Cc: "Greg Freemyer" <greg.freemyer@gmail.com>,
"Bruno Prémont" <bonbons@linux-vserver.org>,
linux-kernel@vger.kernel.org, linux-ide@vger.kernel.org
Subject: Re: Slow disks.
Date: Fri, 24 Dec 2010 14:01:29 +0100 [thread overview]
Message-ID: <m3aajvz5na.fsf@intrepid.localdomain> (raw)
In-Reply-To: <20101222104306.GB30941@bitwizard.nl> (Rogier Wolff's message of "Wed, 22 Dec 2010 11:43:06 +0100")
Rogier Wolff <R.E.Wolff@BitWizard.nl> writes:
> ata6.00: 1953525168 sectors, multi 16: LBA48 NCQ (depth 0/32)
> scsi 5:0:0:0: Direct-Access ATA WDC WD10EARS-00Y 80.0 PQ: 0 ANSI: 5
> sd 2:0:0:0: [sda] 1953525168 512-byte logical blocks: (1.00 TB/931
> GiB)
WD10EARS are "green" drives, 5400 rpm. They aren't designed exactly for
speed. Never used them, though.
No NCQ? Sil 3114 doesn't support of course. ICH7 (without letters)
doesn't do AHCI either IIRC.
> 9 Power_On_Hours 0x0032 091 091 000 Old_age
> Always - 7189
> 193 Load_Cycle_Count 0x0032 164 164 000 Old_age Always
> - 109955
Hmm, some agressive power savings? May reduce performance significantly.
I'd disable all this "green" crap first.
> Where it seems that WD simply says not to use these drives in a RAID.
That smells like "don't use them in any serious application".
I'd start with a RAID-1 or RAID-10 if possible.
--
Krzysztof Halasa
next prev parent reply other threads:[~2010-12-24 13:01 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20101220141553.GA6088@bitwizard.nl>
2010-12-20 18:06 ` Slow disks Bruno Prémont
2010-12-20 18:32 ` Greg Freemyer
2010-12-22 10:43 ` Rogier Wolff
2010-12-22 15:59 ` Greg Freemyer
2010-12-22 16:27 ` Jeff Moyer
2010-12-22 22:44 ` Rogier Wolff
2010-12-23 14:40 ` Jeff Moyer
2010-12-23 17:01 ` Rogier Wolff
2010-12-23 17:47 ` Jeff Moyer
2010-12-23 18:51 ` Greg Freemyer
2010-12-23 19:10 ` Jaap Crezee
2010-12-23 22:09 ` Greg Freemyer
2010-12-24 11:40 ` Rogier Wolff
2010-12-26 23:05 ` Greg Freemyer
2010-12-27 0:27 ` Rogier Wolff
2010-12-27 7:21 ` Stan Hoeppner
2010-12-24 10:45 ` Rogier Wolff
2010-12-26 23:38 ` Mark Knecht
2010-12-27 0:34 ` Rogier Wolff
2010-12-27 3:12 ` Mark Knecht
2010-12-27 18:20 ` Krzysztof Halasa
2010-12-24 13:01 ` Krzysztof Halasa [this message]
2010-12-24 15:24 ` Michael Tokarev
2010-12-24 20:58 ` Krzysztof Halasa
2010-12-25 12:14 ` Rogier Wolff
2010-12-25 12:19 ` Mikael Abrahamsson
2010-12-26 21:40 ` Rogier Wolff
2010-12-26 23:17 ` Greg Freemyer
2010-12-26 23:49 ` Rogier Wolff
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