We end up with a lot of old SCA server drives in my company also. I've tried to get them to work on the Amiga with adapters, but it's hit and miss.
Some work, but aren't seen at power on (have to soft reboot).
Some lock up the SCSI bus.
Some work fine.
Some work fine under 2.04 but lock up the SCSI bus when I soft-kick 3.1.