Two RAID questions

[IsomerX]

On Nov 15, 2007 7:10 AM, Brian McKee <brian.mckee at gmail.com> wrote:
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> On 14-Nov-07, at 7:09 PM, IsomerX wrote:
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> >
> > First; I have a Fiesty box where the OS is installed on an EIDE hard
> > drive.  It also has a SATA RAID 5 array. mdadm is managing the RAID 5
> > array.
>
> >
> > Second; and in fact more important.  One of the other systems to die
> > had a RAID 0 being managed by the MB (it was a Silicon Image
> > controller; SiI3112).  The MB died.
>
> My educated GUESS here is that the mdadm array will come up fine, and
> you are screwed with the hardware raid.
> AFAIK hardware raid arrays require the OEM controller to recover the
> data as they all use proprietary formats.

The Silicon Image 3112 isn't true hardware raid, it's what is known as
fakeraid.  It is a software raid solution that provides bootability
through a BIOS driver.  ie it incorporates a driver into the BIOS to
hold the computer over until it can load the OS driver.

I don't need to boot this array anymore, just mount it to look around.

I Googled this and it appears that the Linux kernel has supported
these chips for a long time, but has anyone ever used Ubuntu for
something like this?  Could anyone help me with configuration?

> That being said, I ASSUME there are other brands and models of board
> using the same controller, but I have no idea which ones.
>
> Why not boot a live CD and see what it finds?
>
> Brian
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