Method for fast searching all chained files having same repeating data deleting identification

The invention provides a method for fast searching all chained files having the same repeating data deleting identification. The method is characterized in that a high-performance high-concurrency database is adopted to serve as the core, and high efficiency can be obtained by integrating an ergodic interface, a core hook module and a redundancy searching module. A modular structure of the method comprises the high-performance high-concurrency database (1), a core hook module (2), an ergodic interface module (3), and a redundancy searching module (4), wherein the ergodic interface, the core hook module and the redundancy searching module support high-concurrency multi-process and multi-threading operation, so that the integral performance of the system is improved. The redundancy searching module provides redundancy configuration, so that the availability of the system is improved. The method seldom needs to search for the whole file system directory tree for searching, so that the method is efficient.