Re: SATA raid options..

First you should consult
http://www.linuxmafia.com/faq/Hardware/sata.html to read up on your chip
set a bit.

The bottom line is, kernel support for bios "raid" is in the works but
marginal at this time.

As far as I'm aware there isn't any advantage to using these built in
sudo-raid devices. Software raid should outperform it in most all cases.

John

On Sat, 2004-07-03 at 09:34, Daniel Kirkegaard Mouritsen wrote:

I own a Gigabyte GA-8KNXP motherboard, which has 4 serial-ata ports. Two
of which features RAID functionality.

The serial-ata controller on the motherboard is a Silicon Image 3112A (a
chip which i haven't been able to find much information about,
siimage.com doesn't even list it as a product).

I'll soon get a new sata disk(identical to my current disk), and I would
love to be able to do the following:

* keep using a 2.6.* kernel
* Use the RAID BIOS administration interface to stripe/administer the
disks
* Have both my grub, /boot / and a NTFS-windows partition reside on
striped set.

Is this at all possible? Can GRUB detect devices created with the
on-board BIOS assisted raid?

Another thing, I'm getting severely confused what I'm supposed to use as
a driver for the thing. ATM I found: udev+raiddetect or the
not-yet-released(or is it? maybe its just me who cant find it :]) dmraid
is the way to go. Does these both use the device-mapper tool? And can
anybody tell me if dmraid is 2 or 20 months aways?

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John Lange
BigHostBox.com
(204) 885 0872