Method and system for multi-dimensional raid

A non-transitory computer readable medium comprising instructions, which when executed perform a method for storing data, the method comprising:

• receiving the data to write to persistent storage;
• calculating parity values for a grid using the data, wherein the grid comprises a Row Q Parity Group, a Row P Parity Group, a Column Q Parity Group, a Column P Parity Group, and an Intersection Parity Group, wherein each of the parity values is associated with one selected from a group consisting of the Row Q Parity Group, the Row P Parity Group, the Column Q Parity Group, the Column P Parity Group, and the Intersection Parity Group, and wherein the parity values associated with the Intersection Parity Group are calculated using the parity values from at least one selected from a group consisting of the Row Q Parity Group, the Row P Parity Group, the Column Q Parity Group, and the Column P Parity Group;
• writing the data to a data grid in the persistent storage, wherein the data grid is part of the grid;
• and
• writing the parity values for the grid to a portion of the grid, wherein the portion of the grid comprises physical locations associated with the Row Q Parity Group, the Row P Parity Group, the Column Q Parity Group, the Column P Parity Group, and the Intersection Parity Group, wherein the portion of the grid is distinct from the data grid.

A system, comprising:

• a controller;
• a non-transitory computer medium operatively connected to the controller;
• persistent storage operatively connected to the controller and comprising a plurality of storage modules;
• wherein the non-transitory computer readable medium comprises instructions which when executed by the controller performs a method, the method comprising:
• receiving data to write to persistent storage;
• calculating parity values for a grid using the data, wherein the grid comprises a Row Q Parity Group, a Row P Parity Group, a Column Q Parity Group, a Column P Parity Group, and an Intersection Parity Group, wherein each of the parity values is associated with one selected from a group consisting of the Row Q Parity Group, the Row P Parity Group, the Column Q Parity Group, the Column P Parity Group, and the Intersection Parity Group, and wherein the parity values associated with the Intersection Parity Group are calculated using the parity values from at least one selected from a group consisting of the Row Q Parity Group, the Row P Parity Group, the Column Q Parity Group, and the Column P Parity Group;
• writing the data to a data grid in the persistent storage, wherein the data grid is part of the grid;
• and
• writing the parity values for the grid to a portion of the grid, wherein the portion of the grid comprises physical locations associated with the Row Q Parity Group, the Row P Parity Group, the Column Q Parity Group, the Column P Parity Group, and the Intersection Parity Group, wherein the portion of the grid is distinct from the data grid.