Patent ID: 9116638
Filing Date: 2015-08-25
Classification: G06F

Abstract:
1. A method for reading data in a file system of one or more computers that are configured to manage and store file information, the method comprising: receiving a file read request; determining a data strip storing at least some of data to be read according to the file read request, wherein the data strip is a unit for storing multiple data fragments in a Redundant Array of Independent Disks (RAID) module, and wherein the data fragments in the data strip are stored in multiple hard disk drives; caching information about the at least some of the data to be read; determining that the at least some of the data to be read fully occupies the data strip; and based upon the determination that at least some of the data to be read fully occupies the data strip, reading the at least some of the data from the data strip according to the information about the data.