RAID 5 Write Buffering and Parity Batching

The patent combines multiple write operations targeting different chunks within the same stripe into a single unified write operation. Instead of performing separate read-modify-write cycles for each chunk, the system aggregates these operations, reads the necessary data once, performs all parity calculations in batch, and writes all results in a single operation sequence, thereby reducing total I/O overhead while maintaining RAID 5 redundancy requirements

The patent performs preliminary actions by pre-calculating intermediate parity values and organizing write operations before executing the final write. The system prepares parity information in advance using XOR operations on the old data and new data, and organizes the write sequence to minimize I/O operations, rather than performing calculations and writes in a straightforward sequential manner for each chunk

The patent merges multiple write operations into a single batched operation, combining the reading of old data, the calculation of new parity values, and the writing of new data and parity information into one coordinated process. This batching approach maintains data integrity through proper parity updates while significantly reducing the total processing time compared to executing separate write operations for each chunk

The patent ensures continuity of useful action by maintaining the parity update process throughout the batched write operation. Instead of interrupting the process between individual chunk writes, the system continuously performs parity calculations and coordinate writes across all target chunks in a unified operation, eliminating idle time and maintaining productive work throughout the entire write sequence