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In digital circuits and machine learning, one-hot is a group of bits among which the legal combinations of values are only those with a single high (1) bit and all the others low (0). A similar implementation in which all bits are '1' except one '0' is sometimes called one-cold. In statistics, dummy variables represent a similar technique for representing categorical data.
A method and apparatus for redundant array of independent disks (RAID) reconstruction
The application provides a redundant array of independent disks (RAID) reconstruction method and device. When a fault disk is reconstructed, P target hot spare disks are selected to reconstruct a specified fault disk in the RAID. A logical disk for reconstructing the fault disk is created and divided into P subspaces. The space of the fault disk is divided into P subspaces. According to the corresponding relationship between the subspaces of the fault disk and the logical disk and the corresponding relationship between the subspaces of the logical disk and the mapping spaces of the target hot spare disks, the fault disk is reconstructed into each target hot spare disk in parallel. It can be seen that the technical solution provided by the embodiment does not reconstruct the fault disk into one selected hot spare disk according to the form that one fault disk corresponds to one hot spare disk, but selects multiple target hot spare disks at the same time and reconstructs the fault disk into the multiple selected target hot spare disks in parallel, so as to shorten the fault disk reconstruction time, improve the reconstruction efficiency of the fault disk in the RAID, and improve the reliability of the data in the RAID.
Owner:MACROSAN TECH