well, afaik, using some thrid party file systems, the miggy can take 120TerraBytes (provided using a 32kilobyte block size)
so 400Gb isn't out the question
bolted a 100Gb ide drive in my ol' A4000 circa 1994/5 see what it would do, as my PC's bios (circa 2000) would crash after the drive detection.
recognised it fine. was limited to 36Gb partitions with OS3.5 FFS tho.
