hmmm... I take it that there are no A3000D/Warp'40 users.
Anyone using some kind of SCSI II controller on their A3000D?
Sorry, I did not see your original post when you put it up. I have not used my A3000D w/WarpEngine in a long while, but I don't remember having any trouble with the two SCSI controllers or any of the devices connected to them. I always had my hard drive connected to the WarpEngine SCSI-2 controller and IIRC, I had an external CD-ROM drive connected to the A3000D's external SCSI connector. I also used ZIP drives from the external connector. The only thing I made sure of was that if I had more than one device on the chain, was that I had different SCSI ID's for each device.
The SCSI-2 on the WarpEngine was quite fast and very reliable for me, so I hope you can work out your system. Do you have the original WarpEngine install disk? Are you using the correct SCSI controller name to try to get it working?