| 摘要 |
Data is divided into two component blocks. An exclusive OR (XOR) parity block is generated, which can recreate one of the component blocks. The component and parity blocks are each divided into two sub-blocks. An XOR parity sub-block is generated for each block, which can recreate one of the sub-blocks in the block. A sub-block in the parity block can also recreate one of the sub-blocks in a component block. The sub-blocks may be further divided and further parity may be generated. The sub-blocks are then stored in different locations, such as separate remote physical devices. The data may be encrypted. The sub-blocks may be transmitted over different transmission channels. The channels may be different radio frequencies. |
