Striped and Mirrored.

Here is what I suggest you do.

1. Connect that Lacie drive to the MBP
2. Launch Disk Utility (It's in the utilities folder)
3. Partition the drive into one (1) partition using the option for OS Extended (Journaled)
4. Before you pull the trigger on that, make sure you choose GUID in the Partition Scheme.
5. Once the format has finished, you can quit Disk Utility and then rename the drive to whatever you want to call it.
6. At this point, you can pick up any folder that you want and just drag it to the external drive.
7. Done

Hope that helps