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From: Roy Sigurd Karlsbakk <roy@karlsbakk.net>
To: stan@hardwarefreak.com
Cc: linux-raid@vger.kernel.org, Peter Landmann <sfrazt@googlemail.com>
Subject: Re: RAID 5 doesn't scale
Date: Wed, 3 Apr 2013 21:56:46 +0200 (CEST)	[thread overview]
Message-ID: <5992258.6.1365019006583.JavaMail.root@zimbra> (raw)
In-Reply-To: <515C2C3C.3020400@hardwarefreak.com>

----- Opprinnelig melding -----
> On 4/3/2013 6:00 AM, Peter Landmann wrote:
> 
> You didn't mention your stripe_cache_size value. It'll make a lot of
> difference. Make sure it's at least 4096. The default is 256.

Looks like Documentation/md.txt (on 3.8.5) says stripe_cache_size, strip_cache_active and preread_bypass_threshold are only available for RAID-5. How can I tune RAID-6 like this?

Vennlige hilsener / Best regards

roy
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  parent reply	other threads:[~2013-04-03 19:56 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-04-03 11:00 RAID 5 doesn't scale Peter Landmann
2013-04-03 11:21 ` Benjamin ESTRABAUD
2013-04-03 18:34   ` Martin Wilck
2013-04-03 20:38     ` Peter Landmann
2013-04-04 13:40       ` Benjamin ESTRABAUD
2013-04-03 13:18 ` Stan Hoeppner
2013-04-03 15:23   ` keld
2013-04-03 15:31   ` Peter Landmann
2013-04-03 18:35     ` Stan Hoeppner
2013-04-03 18:23   ` Martin Wilck
2013-04-03 20:36     ` Peter Landmann
2013-04-03 21:19       ` Peter Landmann
2013-04-03 21:24       ` Stan Hoeppner
2013-04-03 21:29         ` Peter Landmann
2013-04-03 21:15     ` Stan Hoeppner
2013-04-03 19:56   ` Roy Sigurd Karlsbakk [this message]
2013-04-03 21:12   ` Peter Landmann

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