@T3000
I have a WarpEngine (WE) 040 w/64MB in an A3000D and it has a 9GB IBM SCSI drive on its SCSI header. When I first obtained the WE, I could not get the onboard SCSI to work but later found that it was the hard drive that was the problem. It didn't like the old Quantum 750MB drive but worked just fine with the IBM 9GB drive. The WE SCSI controller is very fast in comparison to the onboard SCSI.
As far as using it simultaneously with the internal SCSI controller, I tried it with a Yamaha CD Writer on the internal SCSI chain and the IBM SCSI on the WE SCSI but it would not read from CDROMS that had Amiga file structures for some reason. I upgraded the WD chip to rev 08 with the same result. I thought it could have been the drive so I gave up and bought a Deneb and now use an external USB DVD writer. USB is the way to go imho.
