Set up a RAID drive

If you want to make big backups happen faster, the solution might be to set up a RAID 0 array with two hard drives that splits the data across them for faster write speeds.

1 List the disks

Launch Terminal and type diskutil list to see the drives connected to your Mac. Note the identifiers next to the drives you want to use.

2 Create your raid

Now type diskutil appleraid create stripe Raid0drive JHFS+

[first identifier] [second identifier].