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Date:      Thu, 22 Apr 2010 11:37:15 -0500
From:      Adam Vande More <amvandemore@gmail.com>
To:        Julian Elischer <julian@elischer.org>
Cc:        freebsd-current@freebsd.org, Freddie Cash <fjwcash@gmail.com>, freebsd-geom@freebsd.org
Subject:   Re: Switchover to CAM ATA?
Message-ID:  <p2g6201873e1004220937ob698f8cq2d0e677832cf8259@mail.gmail.com>
In-Reply-To: <4BD07863.4020106@elischer.org>
References:  <4BD06BD9.6030401@FreeBSD.org> <n2ob269bc571004220842q57913d19kfe4196bc92581c4e@mail.gmail.com> <g2p6201873e1004220917z589cae8ek5e83d5b1b59ad5fa@mail.gmail.com> <4BD07863.4020106@elischer.org>

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On Thu, Apr 22, 2010 at 11:25 AM, Julian Elischer <julian@elischer.org>wrote:

> just one little fly in that ointment...  booting.
>
> You need to be able to act with the raid in the same way the bios does
> or you can't boot. I don't think geom would easlily do that but I could be
> wrong. Certainly if you treat teh ata raid as just a bunch of striped disks,
> then the bios will not be able to boot off it.
>
> of course don't take my word too seriosly asn I'm not running an ata raid
> system at the moment.
>

gmirror booting works great only thing to change is fstab to reflect block
dev changes, gstripe doesn't.  I honestly wasn't aware ataraid could boot a
striped volume, if so it does something geom can't.


-- 
Adam Vande More



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