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High-availability method, node device and system for achieving cluster storage

A high-availability, clustered storage technology that can be used in transmission systems, digital transmission systems, error prevention/detection using return channels, etc., and can solve problems such as service interruptions

Active Publication Date: 2013-01-09
北京联创信安科技股份有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The main problem of HA technology is that it will cause service interruption during resource switching, usually only IP and service process resources are taken over, while business data or physical storage resources need to be managed by external systems

Method used

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  • High-availability method, node device and system for achieving cluster storage
  • High-availability method, node device and system for achieving cluster storage
  • High-availability method, node device and system for achieving cluster storage

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Embodiment Construction

[0045] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation methods.

[0046] figure 1 It is a schematic structural diagram of a node device for realizing cluster storage high availability provided by a specific embodiment of the present invention. The node device includes: a timer module, an event processing module, a monitoring module and a communication module; wherein,

[0047] The timer module is used to trigger monitoring events to the event processing module, and regularly monitor the resources and services of the node.

[0048] The HA system triggers events through timers, and regularly monitors the resources and services of the node. If the status changes, it will synchronize the information with other nodes and trigger corresponding events for processing. The function of the timer module is to set the time interval to trigger defined events, including perio...

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Abstract

The invention discloses a high-availability method, a node device and a system for achieving cluster storage. The method includes triggering a taking event according to received node status information; acquiring volume information, storage device information and storage area networking (SAN) storage information of a fault node and generating local configuration information; and mounting a storage device in an SAN cluster and starting system services of a distributed file system, wherein the volume on the storage device is recovered to use. According to the method, the node device and the system, during resource switching among nodes, the internet protocol (IP) of the fault node and resources in a service course can be taken, storage software service courses and physical storage resources of the fault node can be taken, network file system (NFS) / common internet file system (CIFS) / hyper text transport protocol (HTTP) / file transfer protocol (FTP) / internet small computer system interface (ISCSI) protocols and a PanaFS protocol are supported, and a transmission control protocol (TCP) / IP reconnection technology is used so that transparent taking of the fault node is achieved, and service interruption during taking can not be caused.

Description

technical field [0001] The invention relates to the technical field of network storage systems, in particular to a method, node device and system for realizing high availability of cluster storage. Background technique [0002] Under the background of cloud storage and big data, data presents an explosive growth trend. According to research, the digital universe will reach 35.2ZB in 2020, a 44-fold increase from 0.8ZB in 2009, of which more than 80% are unstructured data. A large number of data-intensive applications such as high-performance computing, medical imaging, oil and gas exploration, digital media and social WEB lead to a blowout of data, which constantly poses new and severe challenges to storage methods. Clustered storage is a scale-out storage architecture that has the advantages of linear expansion in capacity and performance, and has been widely recognized by the global market. In addition to the characteristics of high performance and high scalability, clus...

Claims

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Application Information

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IPC IPC(8): H04L29/08H04L12/24H04L1/16
Inventor 刘爱贵
Owner 北京联创信安科技股份有限公司
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