OK, I took all your advice and returned the Adaptec AAA131U2 controller back and
got a Mylex Acceleraid 150 (w/16 MB). I've run the BIOS raid configuration and
it sees all my drives and has created a logical drive.
However, when I boot into linux, I'm not sure where to find this drive. Most
documentation seems to tell me to look in /dev/rd/c0d0, but fdisk says "unable
to open /dev/rd/c0d0" when I try it. My system config is this:
2 x PIII-550 processors
1 x IDE HDD for booting and OS (hda)
4 x 9.1 GB SCSI drives (they're IBM so I turned off
the TI Sync neg by putting
the jumper on them)
running Redhat 6.2 (kernel 2.2.14-5.0smp on i686)
I was about to install the DAC960 drivers, but noticed that all the appropriate
files were already in /usr/src/linux/drivers/block, so I am assuming that Redhat
6.2 comes with DAC960 support already compiled in the kernel. If not, maybe
that's the problem and I just need to compile the kernel again.
At any rate, assuming support in RH6.2, I am a little confused about where to
find the raid device. Looking in /proc/partitions, I see a /dev/hdc with 1
head, 2147483647 sectors, and 1 cylinder. Seems suspiciously like a RAID
device, but I don't know for sure. Looking at with fdisk, there are no
partitions on it (which would make sense as I have not put any there yet if this
IS the raid drive).
Has anyone done a similar install and know if this mysterious /dev/hdc is my
raid drive as configured by the Mylex card?
