I have just brought a 2TB external powered hdd. i am wanting to use it for my backup via time machine and data. i am going to be plugging the hdd into the modems usb port as a file server. what i really want to know is should i leave the drive as one partition or si it best to keep things separate.with 2 1TB partitions. any other tips and tricks for my setup would also be appreciated. edit: I decided to leave the drive as one hfs+(journaled) mac partition and just use it for my Time Machine backups. edit 2: in regards to general data partition, backup solution click here.