Please be aware that this not necessarily a topic of the OS, but needs to consider the hardware and filesystem.
So the device driver might be a limiting factor here. I don’t know e.g. what a Buddha can manage.
As for the filesystem, you can always use PFS3AIO from Aminet which has experimental support for 128TB iirc.
Both filesystem and driver („scsi.device“) need to support the setup.
That said, you wouldn’t be happy. Please be aware that a partition needs buffers that are depending on the partition size. The buffers ear RAM, of course.
So you would probably be better off creating smaller partition. Something cute like 128GB
.
In case you have got an Amiga with access to the mass storage, you can also use FAT or even NTFS filesystems. Like being able to access a CF card from the outside. Just switch the Amiga off prior to removal. If FAT or NTFS formatted, you can easily add files from the PC.
Or you jump to SMBFS for networked Amigas.