A method for file system checking in a storage device. The method includes executing a computer system having a plurality microprocessor cores, initiating a file system check operation by using a file system check agent that execute on the computer system and accesses a storage device, and validating a plurality of meta-data structures of the file system. The method further includes dividing and allocating the metadata structures among a plurality of worker threads. For each worker thread, data corresponding to the metadata structures is processed using a read ahead operation. file system check is processed to completion, wherein the read ahead operation feeds data corresponding to the metadata structures to each of the plurality of worker threads in parallel.