| 摘要 |
Briefly, in accordance with one embodiment of the invention, a method of encoding data signals for storage to tolerate failure of a storage unit of a storage medium includes the following. For N+2 storage units, N being a positive integer, each of the storage units being divided into N storage blocks, 2N blocks of priority signals are produced from (N)(N) blocks of data signals. The N(N+2) blocks of parity and data signals are allocated over the N+2 storage units of the storage medium so that the 2N blocks of parity signals are not exclusively stored in two of the N+2 storage units. Briefly, in accordance with another embodiment of the invention, a storage medium includes: N+2 storage units to store binary digital signals, N being a positive integer, each of the storage units being divided into N storage blocks, the N+2 storage units having stored thereon 2N blocks of parity signals and (N)(N) blocks of data signals, the 2N blocks of parity signals being based upon the (N)(N) blocks of data signals. The 2N blocks of parity signals are distributively stored over the N+2 storage units so that the 2N blocks of parity signals are not exclusively stored in two of the N+2 storage units. |
