I was able to get a Promise FastTrak100 TX2 (PDC20270) up and running sort of... I was able to make a test raid0, /dev/ataraid/d0 device from /dev/hde /dev/hdg However, even though I am using 2 40GB disks the OS is seeing only 2.0 GB (I created 18594MB ea. raid0 partitions on hde/hdg). I can access the device via /proc/mdstat, I can mkfs the device, mount it, add it to fstab, reboot etc. and all works great - just that my 36GB stripe is only 2GB --- I get the same result with a Promise FastTrak Ultra100TX2 (PDC 20268) controller and the same disks. I would be perfectly happy using the native linux software raid for my raid 0 stripe(s). I am not booting OS, or mounting any OS partitions to the stripe(s) I create across the Promise controllers and associated disks. The same box will see the entire 40GB of each disk when using the onboard PIIX4 I/O so it is not a large files size issue or hardware issue (apparently) unless drive geometry is not translated correctly vi the Promise controllers to the Linux Kernel? Am I completely nuts? What am I missing? Am I asking (hoping for) too much of these inexpensive controllers and disks? Are the higher end IDE controllers any better Because even If I have to pay nearly the same for and IDE raid card vs. a entry level SCSI raid controller I am fine with that because the spindle costs still makes up for the difference including a few boxed spares sitting on a shelf... and is justifiable. Again any thoughts are appreciated OS= RHL 7.3, kernel 2.2.18 latest from kernel.org (also played with the 2.2.18-5 from RH) on a Intel chipset based x86 pIII OS on it's own disk off of onboard controller ide1 master Promise FastTrak100 TX2 (PDC 20270) w 40GB disk at ide2 master , 40GB disk at ide3 master CDROM / DLT using Adaptec 2940 scsi (also have a non raid card Promise FastTrak Ultra100 TX2 (PDC 20268)) not used simultaneously- just to swap in and out to experiment. regards, jeff
