Motherboard RAID problem

[Bill Blue]

On Sun, 20 Aug 2006 11:22:48 -0700, Roland Smith <rsmith at xs4all.nl> 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:
>> > On Sun, Aug 20, 2006 at 10:02:05AM -0700, Bill Blue wrote:
>>
>> > > I'm not sure if I'm expecting too much, or this is a real bug.
>>
>> > > Using FreeBSD 6.1 release, CVSup'd to current. The motherboard is a
>> > > Supermicro P4SCT0 with a 3.2Ghz P4 and 2 DDR400 1G sticks of RAM.  On
>> > > the MB is a built-in RAID controller (Adaptec chip) for the SATA
>> > > drives.  You set it for discrete SATA or RAID.  If RAID is set, on the
>> > > next boot you have essentially a BIOS configuration for that 'device'
>> > > consisting of the two SATA devices in either RAID 0 (striped) or RAID
>> > > 1 (mirrored).
>>
>> > The ataraid(4) driver supports the Adaptec HostRAID.
>>
>> > <snip>
>> > > Boot the OS now and all goes well with the device still showing up on
>> > > /dev/ad4* but I couldn't tell if the mirroring was really working
>> > > since the drives have no individual led indications.  I then noticed
>> > > that there was a new ad6* device, and guess what -- it was the second
>> > > SATA drive and a mirror image of the *original* first drive.  Watching
>> > > it with DF for size changes when copying a large file to my home
>> > > directory, it didn't change at all.
>>
>> > > ad6* were the only new devices seen in the OS.
>>
>> > 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.
>
> Roland

Roland, Greg,

Thanks for the replies.  The Intel 6300ESB (aka Hance Rapids I/O Controller Hub) serves as a controller for USB 2.0, UDMA100 and SATA150 devices.  Separately of that, there's the Adaptec embedded SATA with Hostraid controller driver which comes into play if you activate RAID in the BIOS.

Since they refer to it as Adaptec's Hostraid controller, it looks like ataraid(4) should support it.

And Nooooo, I didn't have ataraid defined in my kernel.  It was, but for some reason it isn't now.  I'll uh, have to add and rebuild.  Thanks for pointing out my error.

Now, when the ar0s1a-f devices do show up, does the boot device actually get changed from ad4* to ar0* or do I need to boot single user while it's talking to ad4* and change the mount points and reboot?  I've never played much with changing boot devices.

--Bill