Large partitions

[Davide Dolcini <dolcini spirali com>]

Our society is planning to buy a storage ide to scsi raid unit, and they 
are wondering what kind of  partition can be used.
The plans are to connect that unit on a semi-old (an amd duron 850 
machine with 512 megs of ram) machine, configured ad-hoc (obviously with 
a scsi external port) with FC 1 and to access it by the network (samba)

So the plans are to buy a promise or proware raid eide to scsi storage 
unit with 14 / 15 hd slots, and 250 Gb Hard Disks.

We already have a storage unit which holds 1,5 Terabytes,  it's 
formatted with jfs and attached to a rack xeon server

What kind of partition is it better to hold that large amount of data? 
I'm not a great expert of  jfs, neither of other partitions than ntfs, 
ext2, ext3 and reiserfs but they gave me this task.

I hope i explained myself well, anyway thanks