Hi Roger, Yes, they are all Adaptec AIC-7xxx controllers. I already tried turning off boot-disk support on the PCI controller, no joy. Hm... I wonder what would happen if I replaced the Adaptec PCI controller with a Buslogic? Thanks, Lew On Wed, 3 Oct 2001, Roger L.S. Griffiths BSc (Hons) wrote:
According to the Tyan web site the controller on the motherboard is an Adaptec AIC-7899W U160 controller. Assuming your PCI card is also an AIC-7xxx series card (my AHA-2940 is an AIC-7861) I think your at the mercy of the linux driver as all of the AIC-7xxx controllers are handled by the one linux module.
If the new disks would only appear after the existing ones, all would be well. Alas, the PCI scsi controller appears as SCSI-0, in front of the built-in ones, thus all disks on that controller will push all the others into oblivion. You might try fiddling with the Adaptec PCI card BIOS settings (if you have not done so already you might try turning off boot disk support?).