RAID system and galois field product computation method
A Galois field and product technology, applied in calculation, calculation using number system representation, calculation using non-contact manufacturing equipment, etc., can solve problems such as reducing performance
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[0044] Hereinafter, in the order of the RAID system, Galois field product calculation according to one embodiment, Galois field product calculation according to another embodiment, Galois field product calculation according to still another embodiment, and the modified embodiment, The present invention will be explained. However, the present invention is not limited to this configuration.
[0045] FIG. 1 is a block diagram illustrating a RAID system according to an embodiment of the present invention. Fig. 2 illustrates the parity calculation using the Galois field performed by the RAID system shown in Fig. 1. As shown in FIG. 1, the RAID system includes: a RAID controller 12 connected to a host computer 16, a plurality of (14 in this embodiment) data disk units (hard disk drives) 10-1 to 10-14, And the first parity disk unit (hard disk drive) 10-15 and the second parity disk unit (hard disk drive) 10-16, which are connected to the RAID controller 12 using, for example, a Fibre Ch...
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