A data allocation strategy for deduplication backup systems in disk arrays

With the advent of the digital age, the demand for data storage has surged, especially in scenarios where disk arrays serve as backend storage systems. Disk arrays, with their high reliability and performance, have become the ideal choice for data storage. This paper introduces a novel data allocation strategy, Pdbs, aimed at addressing the issue of uneven data distribution within disk array storage systems. By preemptively identifying and processing duplicate data during the backup process of data streams, the Pdbs strategy achieves a more uniform distribution of data, thereby enhancing the parallelism of data access and the read performance of the backup system. Experimental results demonstrate that, compared to the round-robin placement strategy, the Pdbs strategy significantly improves load balance and accelerates the data recovery process.