how do i add 2 hd's together?
Imac I3 ,16 g ram 3 trb hd 3.5 gig pr.
I would like to add 2 more hd's for a total of 9 tb for iTunes.
iMac, OS X Yosemite (10.10.2)
There are no 9GB HD's as you likely know. If you want to have iTunes libraries on two separate HD's AFAIK you cannot combine the two HD's into one, you will simply need to create 2 iTunes libraries, one on each HD.