Investigating HD controller options late in the A2000%&$#?@!%&$#?@!%&$#?@!8217;s life long ago I concluded that the Microbtics HardFrame was the most advanced HD controller available.
http://amiga.resource.cx/exp/hardframeIt was too pricey for me and so I went with the lesser Supra SCSI controller. My current A2000 has a GVP HD+8 RAM/controller board with a flash-based SCSI emulator. It is no HardFrame tho.
bp