linux-kernel - Re: Question regarding SAS controllers.

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Message-ID: <da824cf30811240811l416431f5kf56e0925f561342@mail.gmail.com>
Date:	Mon, 24 Nov 2008 08:11:05 -0800
From:	Grant Grundler <grundler@...gle.com>
To:	Justin Piszcz <jpiszcz@...idpixels.com>
Cc:	linux-kernel@...r.kernel.org, linux-scsi@...r.kernel.org,
	Alan Piszcz <ap@...arrain.com>
Subject: Re: Question regarding SAS controllers.

On Sat, Nov 22, 2008 at 1:46 PM, Justin Piszcz <jpiszcz@...idpixels.com> wrote:
> Do any SAS controllers exist that are not RAID?
>
> Or to put it another way, if one wants to use SAS disks for example and NOT
> export them as JBOD or use them as RAID, is there a normal controller?

Besides mptsas, there is mvsas (Marvell 6480 chip , IIRC).

> Back in the days of regular SCSI you had SCSI controllers and SCSI raid
> controllers, when searching for SAS controllers now, all that comes up is
> hundreds of SAS-Raid controllers.

Because lots of the windows server users demand HW RAID?
And it's a "value add"; vendors can charge more money for the RAID cards.

grant
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