Storage system and data access method

Abstract

The embodiment of the invention provides a storage system and a data access method. The system includes at least two fast interconnecting bus devices for peripheral equipment. The fast interconnecting bus devices for peripheral equipment includes a first fast interconnecting bus interface for peripheral equipment and a second fast interconnecting bus interface for peripheral equipment. The first fast interconnecting bus interface for peripheral equipment and the second fast interconnecting bus interface for peripheral equipment and respectively connected to different controllers. RAM bodies of the fast interconnecting bus devices for peripheral equipment are spacingly mapped to the controllers of the first fast interconnecting bus interface and the second fast interconnecting bus interface for peripheral equipments respectively. According to one embodiment of the invention, the controller in the memory system is connected to the PCIE equipment for spacingly mapping at least two RAMs to the controller, thereby the PCIE becomes the buffer of the memory system, so that buffer space of the memory system is enlarged, establishment of mirror channel is avoided, and memory system is simplified.

Description

technical field [0001] The invention relates to the technical field of data storage, in particular to a storage system and a data access method. Background technique [0002] With the rapid development of science and technology and the widespread application of computer technology, the rapid increase of information on the Internet and the rapid development of e-commerce make enterprises more dependent on data than ever before. Moreover, with the massive growth of data, the enterprise information system has increasingly become the main body of the enterprise's competitive advantage. In order to enable enterprise information systems to store these massive data better and faster, storage technology emerges as the times require. And how to store massive data faster and more safely has become the focus of storage technology research. [0003] In the prior art, the storage system directly uses the memory on the controller as a cache (Cache) of the storage system. In addition, s...

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Problems solved by technology

[0004] In the process of realizing the present invention, the inventors found that the prior art has at least the following defects: the traditional storage array implements cache through large-capacity random access memory (Random Access Memory, RAM), and the RAM space in the controller is limited by many Influenced by factors, such as the size of the controller board, the small memory capacity supported by the CPU and the north bridge chip, resulting in a small cache capacity

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