Research And Implementation On Massive Hard Data Fast Replication Technology

Advances in information technology will inevitably require the transmission of information to befaster and more efficient. With the gradual forming of the Digital Earth and explosive development ofdigital information storage, large-capacity disks turned out, and raise a question for massive hard drivedata replication research.Based on in-depth understanding of domestic and foreign fast data replication technology, thisthesis makes a thorough analysis of the current fast data replication scenarios and modes. On theweaknesses of hard disk data replication system at home and abroad, and the fact that replication ratehas reached a bottleneck limit, it proposes a data replication strategy based on multi-blockmulti-interface concurrent output and embarks on this study.The thesis proposes a data replication mechanism based on host multi-interface concurrent dataoutput, and expands research around the target and its implementation. The main work is as follows：(1) construct a mode of fast disk file system analysis. Through analyzing the physical structurecharacteristics, the data structure characteristics, file system, data storage principles of the disk, itproposes the technology of fast recognization of disk file system, technology of file system driver forthe realization of fast disk file system analysis.(2) Propose two data output strategies, which are “single-mode interface concurrent output data”and “multimode interface concurrent output data”. Design proposes data output strategy in accordancewith the output of the block bit mode, draws a strategic mode of data block output, finds out theoptimal block bit division policy table through tests and experiments, proposes and designs amulti-line data transmission, the block bit data flows and data output overall architecture program.(3) Propose and test block bit partitioning algorithm and block bit distributing and diggingalgorithm, research into the feasibility and validity of the strategies and algorithms. It Proposes thedata hash storage and restructuring program strategy, and through customizing data elements structureprotocols, analyzing the hash storage of data elements, designs a data elements hash storage solutions,and realizes its solutions. Then according to the hash storage protocols of data elements, studies thereorganization of hash-stored data elements, designs and implements “rapid reorganization”and“holographic restructuring” two hash data restructuring modes.(4) On the basis of in-depth study of related technology and application strategies, according to the research prototype system, analyze the application requirements on massive hard data fastreplication system, then implement hardware design and software integration of the system, andfinally conduct functional tests and performance analysison this system. Tests show the effectivenessof the system and the research has achieved the expected goal.