I bought this card from newegg to add a 2-250gb-disks Raid1 to an UBUNTU 10.04 desktop. I then purchased two WD 250gb Blue Scorpio, built the Raid1 set via the controller BIOS as the manual suggest (F4 after Bios Post).
The O.S. is on another drive, directly connected to my mainboard (intel d510Mo).
The problem is that I'm not sure about the status of this raid and I like to understand if everything works as expected before pushing 100 Gb of data into it.
I'm sure the system recognize the controller because I can see it in Disk Utility as a SATA Host Adapter Sil 3114 lead by a sata_sil driver. Disk utility report them as two separate Peripheral drives. I formatted one of them (ext4) so now I see a mounted drive under Places/computer.
However the other drive is still reported as "Unknown 250Gb".
Here is the result of my
sudo fdisk -l
How can I know If my raid is well set?
As you may guess I'm not an expert, so If you have a good howto I could also go there and start from scratch again.
NOTE: I decided to go for a raid PCI controller because my motherboard has only two sata ports and I used one for a 120 Gb HD for the O.S. and one for the Slim CD/DVD-RW. However the card could also be used just to add other 6 HDD ports (2 sata and 2 e-sata) to the system, so if you think It's better to avoid the hardware bios, doing everything via Ubuntu I'll do as you suggest.