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Storage system

A storage system and storage node technology, applied in the field of storage systems, can solve problems such as cache data loss, affecting the reliability and stability of storage systems, and achieve the effect of enhancing reliability and stability

Active Publication Date: 2016-08-24
北京书生信息技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Once any host in the cluster server fails, the cache data stored in this host will be lost, which will seriously affect the reliability and stability of the entire storage system

Method used

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Embodiment Construction

[0014] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0015] figure 1 Shown is a schematic diagram of the architecture of a storage system according to an embodiment of the present invention. Such as figure 1 As shown, the storage system includes a storage network; at least two storage nodes are connected to the storage network, where the storage nodes are software modules that provide storage services, rather than hardware servers including storage media in the usual sense; And storage devices a...

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Abstract

The embodiment of the invention provides a storage system. With the system, a problem that cached data loss occurs when a fault occurs at a server can be solved. The storage system comprises a storage network, at least two storage nodes connected to the storage network, and at least one storage device connected to the storage network. Each storage device includes at least one storage medium; and the storage medium includes at least one high-speed storage medium and at least one persistent storage medium. The storage network is configured to enable each storage node to visit all storage mediums without using other storage nodes. All or parts of one or more high-speed storage mediums among the at least one high-speed storage medium form a high-speed caching zone. When data are written into the storage nodes, the data are written into the high-speed caching zone firstly; and then the same storage node or different storage nodes writes / write the data in the high-speed caching zone into the persistent storage medium.

Description

Technical field [0001] The invention relates to the technical field of data storage, in particular to a storage system. Background technique [0002] With the increasing scale of computer applications, the demand for storage space is also increasing. Correspondingly, integrating the storage resources of multiple devices (for example, the storage medium of a disk group) into a storage pool to provide storage services for cluster servers has become the mainstream now. As a temporary data exchange area, the cache reduces the system load and increases the data transmission rate. In traditional storage systems, the cache area is usually integrated on each storage node of the cluster server, that is, the read and write operations of the cache are performed on each cluster server. Implemented in the host. Each server temporarily stores commonly used data in its own built-in cache, and then when the system is idle, the data in the cache is transferred to the persistent storage medium i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08
CPCH04L67/1097H04L67/568G06F12/08
Inventor 王东临金友兵
Owner 北京书生信息技术有限公司