On my A1200 and A4000 I have 8 GB drives with a 500MB System and 2 x 3.6GB Partitions.
This won't work without additional software. Kickstart 3.1 with its built-in IDE driver and the built-in file system cannot access outside of the first 4GB of the drive. The IDE driver recognises drives up to 8GB, but if you create a partition in the upper 4GB it will use the same space as other partitions inside the first 4GB, so the partitiions will overwrite each other.
There is FFSTD64 on Aminet which patches the file system to allow to use the full 8GB (even as one partition, no need to make a smaller system partition). You need to patch the IDE driver as well to get more than 8GB. IDEfix97 is such a patch for the IDE driver, for example. OS 3.5 and 3.9 come with new IDE drivers, too.
Bye,
Thomas