Patent ID: 8898380

Claim:
A system for checking RAID information, comprising: an address compare that determines whether a first address on a system bus corresponds to a predefined data range, a predefined RAID P-data range or a predefined RAID Q-data range, wherein said address compare respectively generates one of a HITD, HITP or HITQ signal in response to the first address being within the predefined data range, the predefined RAID P-data range or the predefined RAID Q-data range; a RAID P-data accumulator that stores, in response to the receipt of the HITD or HITP signal, a first result of an exclusive-OR of data stored in said RAID P-data accumulator and data received from said system bus, said data received from said system bus being sent to said first address on said system bus; a constant selector that, in response to the receipt of the HITD or HITQ signal and based on said first address on said system bus, selects one of a set of constants that corresponds to said data received from said system bus; and, a RAID Q-data accumulator that stores, in response to the receipt of the HITD or HITQ signal, a second result of an exclusive-OR of data stored in said RAID Q-data accumulator and a third result of a Galois field multiplication of said one of said set of constants and said data received from said system bus.