If your answer was RAID-0, you are correct.

RAID-0: Striping. This is the level of RAID that does not live up to its name. Its does not add redundancy. In fact, when run by itself, it reduces the level of protection for the data. When data is striped, it is spread across several disks with each block of data only being written in one place. The advantage here is not in protection but in performance. If any of the disks in the stripe fail, then access to all the disks is lost. However, by spreading the data across more pieces of hardware, writes and reads can be completed more quickly, since the task can be performed by more independent readers and writers.

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This was first published in April 2005

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