SATA = Serial ATA (ATA meaning AT Attachment) and RAID is Redundant Array of Inexpensive Disks which is used to allow for fault tolerence by writing the data to more than one disk (level 1 and 5) although level 0 is called RAID it is more like AID (RAID minus the redundancy) because if one drive fails the array is lost.
I hope that helps you.
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I hope that helps you.