Hierarchical storage system in distributed environment

Abstract

The invention discloses a hierarchical storage system in a distributed environment, which comprises at least one policy server, at least two network storage units with different performances, and at least two client agents, wherein the client agents provide interfaces for accessing the hierarchical storage system for a user; and the policy server is a bridge between the client agents and the network storage units, manages the network storage units and the client agents, and selects one client agent to perform data migration operation so as to distributes the data on the network storage units with different performances according to heat difference. The hierarchical storage system can solve a plurality of problems in the conventional network storage. Through hierarchical management, the best balance between the performance and the cost can be achieved; in addition, an optimized policy rule is set, so that important data and frequently-used data can be accessed in the shortest time, and rarely-used data is backed up in a storage with lower cost. Therefore, the access performance of the client agents and the overall performance of the storage resources are improved.

Description

technical field [0001] The invention relates to a network storage technology, more specifically, to a hierarchical storage system in a distributed environment. Background technique [0002] With the rapid development of the Internet and various related network applications, the information resources on the network show an explosive growth trend, and the amount of information transmitted through the network continues to expand. The rapid development of information technology has driven the huge demand for information storage. Undoubtedly, this has caused a substantial increase in the capacity requirements of the storage system. [0003] In the traditional data storage mode, users store data through the local disk system of the client computer, or store data in the central storage system connected to the server through the LAN server. In this way, as the demand for data storage continues to increase, the capacity requirements for the local disk system or the central storage ...

AI Technical Summary

Problems solved by technology

In this way, as the demand for data storage continues to increase, the capacity requirements for the local disk system or the central storage system are also increasing, which will cause the local disk system or the central storage system to Constant hardware upgrades also place a heavy burden on the maintenance of said data storage systems

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