Create RAID on MAC OSX in Terminal

    To create a RAID 0 array in Terminal, the following command should work:
    diskutil appleRAID create stripe [arrayName] JHFS+ disk0 disk1
    Change arrayName to what you want the volume to be called, like “Macintosh HD”. Use quotes if you want a space in the name. You may need to change the disk numbers, you can find these by typing “diskutil list”.
    To create a RAID 1 array in Terminal, the command should like this:
    diskutil appleRAID create mirror [arrayName] JHFS+ disk0 disk1

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