I backup my iPhone 6 Plus 128GB through iCloud, but prefer to use iTunes as my main backup and restore option for iOS restores etc. Unfortunately even if you have your iTunes library stored on an external drive, your iOS device backups are still store on the local Macintosh HD. This is a problem for me as my Photos app and other document apps in iOS are huge and iTunes backup stores the app content on my local Macintosh drive when I do the back up. I want iTune backup to store iOS Photos app...
How to move iPhone backup location for iTunes? Any idea?
How to move iPhone backup location for iTunes? Any idea?