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Re: right su and sw values for raid 10

To: Ed <spied@xxxxxxxxx>
Subject: Re: right su and sw values for raid 10
From: Nathan Scott <nathans@xxxxxxx>
Date: Wed, 8 Jun 2005 10:17:03 +1000
Cc: linux-xfs@xxxxxxxxxxx
In-reply-to: <42A54124.4060007@yandex.ru>; from spied@yandex.ru on Tue, Jun 07, 2005 at 10:39:32AM +0400
References: <42A08C35.9080402@yandex.ru> <42A54124.4060007@yandex.ru>
Sender: linux-xfs-bounce@xxxxxxxxxxx
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On Tue, Jun 07, 2005 at 10:39:32AM +0400, Ed wrote:
> Ed wrote:
> 
> > can you help me select right su and sw parameters for hardware raid 10 
> > (4 disks, 128kb stripe)?
> 
> 
> i found this message: "TAKE 937235 - mkfs vs MD0/1".
> it's right don't use sunit and swidth for raid 10?

No.  Look thru the CVS code in xfsprogs/libdisk/md.c -- you should
be able to figure out the right thing for your setup from that.  If
you're keen, and your RAID device driver exports its geometry, you
could add some new libdisk code for your device.

cheers.

-- 
Nathan


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