Without additional patches/upgraded FileSystems, keep partition sizes below 2GB.
You can set it up this way with the latest FFS/SFS and PatchStrip and NSDPatch programs but I would recommend using either
AmigaOS 3.5 or
AmigaOS 3.9 especially as you will soon have a Blizzard 1230.
Both the more modern AmigaOS versions contain the NSDpatches and better filesystems. Importantly they report partition sizes correctly.