Is the device seen on the SCSI bus, and the problem is just that Apple HD SC Setup won't work with it? If so, you can get the universal Apple HD SC Setup which is modified to work with any drive.
If the problem is that the device isn't seen on the SCSI bus, try enabling terminator SCSI power (which is only ever possibly a problem if you're powering termination in several places using different power supplies).
Apple HD SC Setup won't fail on large drives (I've used drives larger than 1 TB), but it will take AGES. It might take as long as an hour per partition on an SE/30. I can't say for sure, but even a 750 gig drive on a 50 MHz m68040 can take five minutes per partition operation.
If the problem is that the device isn't seen on the SCSI bus, try enabling terminator SCSI power (which is only ever possibly a problem if you're powering termination in several places using different power supplies).
Apple HD SC Setup won't fail on large drives (I've used drives larger than 1 TB), but it will take AGES. It might take as long as an hour per partition on an SE/30. I can't say for sure, but even a 750 gig drive on a 50 MHz m68040 can take five minutes per partition operation.