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Metadata synchronization method of network additional memory node and network additional memory node

A network-attached storage and node synchronization technology, applied in the field of network storage, can solve problems such as file data synchronization and lower NAS service quality

Inactive Publication Date: 2008-07-30
UNITED INFORMATION TECH H K COMPANY
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Cluster-based NAS technology has greatly promoted the development of network storage, but due to the characteristics of distributed deployment of computers in the cluster, the NAS system has an urgent problem to be solved: how to synchronize the file data of each NAS node in the NAS cluster
According to the existing technology, NAS node 2 will notify other NAS nodes to find the metadata c corresponding to the file content data C, and then NAS node 1 will find out the metadata c corresponding to the file content data C based on the notification, and synchronize it to the NAS node 2 , so that the delay can be clearly felt on the NAS client 2, that is, the quality of the NAS service provided by the NAS node 2 is reduced

Method used

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  • Metadata synchronization method of network additional memory node and network additional memory node
  • Metadata synchronization method of network additional memory node and network additional memory node
  • Metadata synchronization method of network additional memory node and network additional memory node

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Embodiment 1

[0053] Embodiment 1. Record the change method and time of the change metadata, and synchronize the change metadata and the change method based on the combination of timing and trigger; and synchronize all the metadata at the predetermined time to release the occupied time of the operation record. storage.

[0054] 4 is a schematic diagram of the process of synchronizing metadata of NAS nodes in the first embodiment of the present invention. In the figure, the NAS cluster is composed of NAS nodes 1 and 2, wherein NAS node 1 provides NAS services to NAS client 1, and NAS node 2 provides NAS services to NAS clients. End 2 provides NAS services. The synchronization time of the metadata timing synchronization method is to synchronize every time period t. When the metadata change method is to add and delete metadata, the trigger method is used to synchronize the changed metadata, and the other change methods are used to synchronize the changed metadata. .

[0055] Assume that at t...

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Abstract

The invention discloses a metadata synchronization method of NAS nodes and NAS nodes for preventing NAS nodes from repeating synchronizing metadata to other NAS nodes in a NAS cluster. The method includes the following steps: every NAS node in a NAS node cluster records the changed metadata and the changing mode; and the recorded metadata and the changing mode are synchronized with other NAS nodes. The invention further discloses a metadata synchronization mode of NAS nodes and NAS nodes for improving the metadata synchronizing efficiency of NAS nodes. The invention includes the following steps: each NAS node in a NAS cluster monitors whether the stored metadata has changed, and if the metadata are monitored to have changed, the NAS node synchronizes all the stored metadata with the other NAS nodes.

Description

technical field [0001] The invention relates to the technical field of network storage, in particular to a method for synchronizing metadata of a network-attached storage node and a network-attached storage node. Background technique [0002] Cluster technology is a widely used service provision technology. Its core is to distribute multiple computers on the network to provide services together, which effectively promotes the development of service provision. [0003] Network Attached Storage (NAS, Network Attached Storage) technology is a technology that integrates distributed and independent small data into a large, centralized management data center for individual users to access. [0004] Figure 1 is a schematic structural diagram of the NAS system, combined with this figure, it can be seen that the NAS system includes: [0005] NAS clients can access NAS storage devices through the services provided by the NAS cluster, and perform operations such as viewing, writing, d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/08
Inventor 程任全黄迁
Owner UNITED INFORMATION TECH H K COMPANY
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