Data synchronization method, storage system, device, and storage medium

By introducing a hybrid synchronization method combining shared storage devices and network transmission into the storage system, the problem of low efficiency in multi-copy data synchronization is solved, the separation of computing and storage is achieved, and data synchronization efficiency and system flexibility are improved.

CN115563221BActive Publication Date: 2026-04-07ALIBABA (CHINA) CO LTD
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Patent Information

Application Number
CN202211327150.4
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-10-25
Publication Date
2026-04-07
Estimated Expiration
2042-10-25

AI Technical Summary

Technical Problem

In existing technologies, multi-replica data synchronization suffers from low efficiency, difficulty in scaling up and down replicas, and poor flexibility, especially in network transmission synchronization solutions that integrate computing and storage.

Method used

By introducing two synchronous links—a shared storage device and a network transmission—into the storage system, the first compute node refreshes the primary copy into a memory data segment and stores it in the shared storage device when conditions are met. The second compute node then reads the unstored data from the shared storage device, thus achieving the separation of computation and storage.

Benefits of technology

It improves the data synchronization efficiency between master and slave replicas, reduces the pressure on shared storage devices, enhances data write performance, and supports independent scaling and flexibility.

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Abstract

The application provides a data synchronization method, a storage system, equipment and a storage medium, and relates to the field of storage. The storage system comprises a first computing node, a second computing node and a shared storage device. When the first computing node flushes the obtained primary copy into a data segment in the memory, the first computing node copies a first part of data of the data segment to the second computing node through network transmission, and stores the data segment into the shared storage device when preset storage conditions are met. The second computing node processes and stores the received first part of data, and reads and loads a second part of data of the data segment from the shared storage device when it is determined that the second part of data is not stored. The first part of data and the second part of data are secondary copies of the primary copy. In the technical scheme, in the storage system architecture of separation of computing and storage, the primary and secondary copy synchronization is realized by using two synchronization links of the shared storage device and the network transmission, and the data synchronization efficiency is improved.
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