Motherboard RAID problem

[Greg Byshenk]

On Sun, Aug 20, 2006 at 08:22:48PM +0200, Roland Smith wrote:
> On Sun, Aug 20, 2006 at 07:55:47PM +0200, Greg Byshenk wrote:
> > On Sun, Aug 20, 2006 at 07:38:28PM +0200, Roland Smith wrote:

> > > If FreeBSD supports the device, you should see an ar0 device.

> > > Do you have the ataraid(4) driver loaded, or built into your kernel?

> > Alternatively, are you sure you have identified your hardware correctly?

> > According to Supermicro here

> >    <http://www.supermicro.com/products/motherboard/P4/875/P4SCT.cfm>

> > the P4SCT has an Intel 6300ESB onboard RAID controller, which according to
> > this page

> >    <http://www.gamepc.com/labs/view_content.asp?id=eoyraid&page=2&cookie%5Ftest=1>

> > is based upon the ICH4, and not Adaptec controller.  And, unless I've
> > missed it, this controller is not supported.

> The ata(4) manual page lists the 6300ESB as supported. The ataraid(4)
> manual only lists the "Intel MatrixRAID" metadata format as supported.


Well, the controller itself is supported, obviously (as an ATA
controller), but I don't see that it is supported as a RAID controller.

And, if this is the case -- ie: 1) the controller is indeed 6300ESB; and
2) it is supported as an ATA controller; but 3) it is not supported as a
RAID controller -- then that would explain the situation described in the
original message.  That is:  the system happily sees two individual ATA
drives, but cannot see any array.

This is all guesswork, but it makes sense.


-- 
greg byshenk  -  gbyshenk at byshenk.net  -  Leiden, NL