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Channel adapter for disk array device, compares previously computed input code with output code computed during retransmission of partial data, to determine whether data is transmitted normally
Channel adapter for disk array device, compares previously computed input code with output code computed during retransmission of partial data, to determine whether data is transmitted normally
A computing unit computes an input guarantee code when data from a cache memory is stored in a local memory and computes an output guarantee code when data is read from local memory. If a partial data is retransmitted to higher-order device, the currently computed output code is compared with previously computed input code, to determine whether data transmission is performed normally. Independent claims are also included for the following: (1) method of controlling channel adapter; (2) disk array device; and (3) communication unit.
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