need help organizing harddrives (for a dual boot video editing / DAW system)

[rtx1224]

i just built my first hackpro and it is a dual os (mavericks 10.9.1 & win7 on two separate SSDs)

I also have two 1 terabyte 7200rpm hitachi drives, as well as two 4tb external 5400rpm drives.

I plan on using both windows and osx to produce music and videos with the machine.

Im wondering what is the best way to organize the harddrives?

so far I have win7 installed on a 120gb ssd, and mavericks is installed on another ssd (128gb)

the 1tb hitachis will be the working drives; so no programs will be installed on them but all the audio and video samples/libraries will be located on them
should I dedicate one of each of the 1tb hitachis for each os?
if yes, how shoud I format them?

or would it be possible that I format them in a way (exfat?) so that both OS can see them?
(this would be beneficial since I dont have to waste drive space by having to put same sample libraries on both drives.

regarding the external 4tb drives; these will be storage drives.
originally i bought them thinking that i would pull them out of their enclosures and use them as internal drives preferably in a raid1 setup and formatted in a way so that each os can access them.
is this the way to go? is it possible? is exfat the best option to format with?

any help appreciated
thanx

 

[baller1308]

You could just format them as NTFS and OS X will be able to read them. There are a few programs out there that will allow you to write to the drives (Tuxera, Paragon, etc.). I currently have a similar setup and have had no issues reading and writing to the connected hard drives that are formatted as NTFS.