Method and system for multidimensional RAID

摘要

A method for storing data. The method includes receiving a request to write data. In response to the request, selecting a RAID grid position in the RAID grid to write the data, writing the data to memory, and updating the data structure to indicate that the RAID grid position is filled Including the step of. The method further includes determining whether the data grid in the RAID grid is filled using the data structure, wherein the RAID grid location is in the data grid, and the method further includes: Based on the determination that the data grid is filled, calculating a parity value for the RAID grid using the data, and determining a physical address in persistent storage corresponding to the RAID grid location. Writing the data to a physical location in the persistent storage corresponding to the physical address, and writing the parity value to the persistent storage.