I recently bought two LaCie Little Big Disks SSD Thunderbolt and wanted to set them up as a RAID setup to get the 800MB/s read write. Unfortunately the documentation on LaCie's website was horrible - nor did Google offer much. So here I am - offering my two cents on the setup.
For your information, several days after I originally posted this article feedback came in from readers requesting more screen shots and "better" screenshots. So, I have finished updating the document with awesome screens of the Disk Utility process and more. Enjoy.
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This could be useful for you even if you don't have a a LaCie little big disk. It would work with other Daisy Chain models and creating a RAID setup for them.
Step 1: Buy Expensive Drives & 2 Thunderbolt Cables
Buy expensive LaCie drives and do not expect anything from their technical support. Be aware of the fan sound. It can be loud if you're doing audio work in the room and you need it quiet. If you're in an office or like having ambient noise, they are okay.
The drives are $899 ea and the cables are $49 ea. Buy two of each.