Date: Mon, 10 Oct 2005 08:24:59 +0200 From: =?ISO-8859-1?Q?S=F8ren_Schmidt?= <sos@FreeBSD.org> To: Thomas Quinot <thomas@FreeBSD.org> Cc: freebsd-current@FreeBSD.org Subject: Re: 6.0-BETA5: Sees only first ATA RAID volume Message-ID: <09BF04FC-B401-4EFF-9FE1-CA20D58D651B@FreeBSD.org> In-Reply-To: <20051009200141.GA85570@melusine.cuivre.fr.eu.org> References: <20051009200141.GA85570@melusine.cuivre.fr.eu.org>
next in thread | previous in thread | raw e-mail | index | archive | help
On 09/10/2005, at 22:01, Thomas Quinot wrote:
> Hi *,
>
> Doing some experiments on a Dell Precision 380 with ICH7 (Intel
> MatrixRAID) SATA RAID controller. There are three 160 Gb SATA disks
> in the machine.
>
> In the BIOS, I configured two RAID volumes:
> * one mirror (RAID1) with a capacity of 110 Gb, involving the
> first two disks (leaving 50 Gb of free space on each disk);
> * one striped (RAID0) using the remainder of the space of each
> of the first two disks.
>
> (the 3rd disk is completely outside of the RAID system).
>
> When booting up, I see the three physical disks as ad4, ad6, and ad8,
> buth only the first RAID volume as ar0 (with a disk size that looks =20=
> like
> the expected 110 Gb) - I do not see any ar1 striped volume.
>
> Is this a bug? A known limitation? Anything specific I need to set up?
=46rom ata-raid.c::ata_raid_intel_read_meta()
/*
* update our knowledge about the array config based on =20
generation
* we only grap the first volume description (yet) since the
* BIOS'n I have access to puts crap into the following ones
*/
There's your explanation :)
When/If I get my hands on HW that supports this I'll add the support =20
to the ataraid driver..
BTW it knows how to deal with multiple RAID's on the same disks, but =20
no BIOS's I've had access to so far has allowed this yet...
S=F8ren Schmidt
sos@FreeBSD.org
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?09BF04FC-B401-4EFF-9FE1-CA20D58D651B>