Re: on board RAID chip

Adaptec rather :)

On Mon, 12 Jun 2006, Justin Piszcz wrote:

First off, its not a real raid, its a fake raid. Search for SATA raid linux on google, you'll see that 95% of raid controllers are not really raid controllers. Certain Intel, Adataptec and 3ware are real controllers.

All the RAID chip on the mobo does (for Windows) is make it appear as a logical volume. You're much better off using SW RAID, there may be an 'ataraid' driver to support the BIOS' fakeraid chip, but I wouldn't recommend it. I'd use SW RAID1 if I were you.

Also, you may want to run lspci from command line to show us what kind of RAID you are talking about (chipset-wise).

Justin.

On Mon, 12 Jun 2006, ChadDavis wrote:

I have a Gigabyte mother board that has second and third IDE channels that
are controlled by an onboard RAID chip. The chip is a Gigabyte deal I
think. In the bios, I can configure the RAID controller to simply view the
channels as IDE/ATA ( the chip only supports harddrives ). I moved my
harddrive over to the second channel and tried to boot. The boot seeemed to
be going okay until the root file system was mounted and then the boot hung.

Here's my guesses about what is going on.

1) I assume that the bios boot processing works fine because it has
nothing to do with linux, it just goes and gets the boot stuff from the
harddrive.

2) the kernel is in memory becuase it was done in step one

3) when the kernel, linux itself, tries to read the harddrive ( after
mounting the root file system ) it can't do it

4) my guess is that linux needs a driver to control their proprietary
chip? Does this sound accurate to those more knowledgeable than myself?

Please let me know if my guesses about what is happening seem on the mark.
Also, please give advice on how to proceed.

Chad



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