Data storage method and device

A data storage and metadata technology, applied in the storage field, can solve problems affecting storage business continuity, network delay, storage scheduling response delay, metadata synchronization anomaly, etc., and achieve the effect of reducing access pressure and improving continuity

Active Publication Date: 2017-10-03
XIAN UNIVIEW INFORMATION TECH CO LTD
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Problems solved by technology

Since the access performance of the storage system depends on the hardware configuration of the metadata server itself, as the number of terminals to be stored increases, the performance of the metadata server will inevitably decrease and eventually reach a limit. As the performance declines, the external service capability of the metadata server will also decrease. At that time, there will be network delays, storage scheduling response delays, and abnormal metadata synchronization, which will affect the continuity of storage services.

Method used

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Experimental program
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Embodiment approach

[0063] As an implementation, see Figure 5 , the method also includes:

[0064] Step S503, the metadata server receives the registration information sent by the storage server.

[0065] The metadata service module in the storage server will periodically send a keep-alive message to the metadata server, and the keep-alive message is used to report the master-slave status of the metadata service module.

[0066] Step S504, if the registration information is the first registration information received by the metadata server in the domain to which the storage server belongs, use the storage server as an in-domain management server in the domain to which the storage server belongs.

[0067] And set the metadata service module of the management server in the domain as the master metadata service module, and send a notification message to the metadata service module of the management server in the domain, so that the metadata service module can set its own state as the master state....

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Abstract

The invention provides a data storage method and device. The method comprises the steps that whether information of an intra-domain management server in a domain which a pending terminal belongs to is stored or not is inquired by the pending storage terminal; if not, a first query request is sent to a metadata server; first response information which is returned by the metadata server is received; a second query request is sent to the intra-domain management server; if yes, the second query request is directly sent to the intra-domain management server; second response information which is returned by the intra-domain management server is received, and the second response information comprises information of a target storage server; data to be stored is sent to the target storage server. According to the data storage method and device, the access capability of a whole memory system is not just dependent on the hardware performance of the metadata server, so that the access pressure of the metadata server is greatly reduced, and accordingly the continuity of storage service of the pending storage terminal is improved.

Description

technical field [0001] The present invention relates to the technical field of storage, and in particular, to a data storage method and device. Background technique [0002] With the continuous expansion of storage services, at present, it is a trend to connect tens of thousands of terminals to be stored in one storage system. Since the access performance of the storage system depends on the hardware configuration of the metadata server itself, as the number of terminals to be stored increases, the performance of the metadata server will inevitably decrease and eventually reach a limit. As the performance declines, the external service capability of the metadata server will also decrease. At that time, network delays, storage scheduling response delays, and metadata synchronization exceptions will occur, which will affect the continuity of storage services. Therefore, how to improve the access performance and the continuity of the storage service is an urgent problem to be ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/06
CPCG06F3/0604G06F3/0655G06F3/067
Inventor 朱世峰丁强吕志明
Owner XIAN UNIVIEW INFORMATION TECH CO LTD
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