RAID Array Controller 2-13

RAID 0

RAID 0 breaks up data into smaller chunks and writes each chunk to a different drive in the array. The size of each chunk is determined by the controller’s chunk size parameter, which you set in the course of creating a RAID set.

The advantage of RAID 0 is its high bandwidth. By breaking up a large block of data into smaller chunks, the controller can use multiple drive channels to write the chunks to the disk drives. Furthermore, RAID 0 involves no parity calculations to complicate the write operation. Likewise, a RAID 0 read operation employs multiple drives to assemble a single, large data block. This makes RAID 0 ideal for applications such as graphics, video, and imaging that involve the writing and reading of large, sequential blocks.

CAUTION: The lack of parity means that a RAID 0-disk array offers absolutely no redundancy and thus cannot recover from a drive failure.

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Compaq EK-SMCPO-UG. C01 manual Raid