A storage method and device supporting memory snapshot deduplication

Abstract

The invention discloses a storage method and device supporting memory snapshot data de-duplication. The method includes the steps that the type of a virtual machine operating system is recognized, and a memory layout template is constructed; memory segments of a virtual machine are snapshot according to the memory layout template to obtain memory snapshots; the fingerprint value of each memory snapshot is calculated; whether or not the fingerprint values of the memory snapshots exist in a filter is queried, if yes, the memory snapshots are not uploaded, and if not, the memory snapshots are uploaded. According to the storage method and device supporting memory snapshot data de-duplication, only one memory snapshot zone of identical content needs to be stored, so that the purpose of optimizing memory snapshot storage and transmission bandwidth is achieved.

Description

technical field [0001] The invention belongs to the technical field of cloud computing, and in particular relates to a storage method and device supporting memory snapshot deduplication. Background technique [0002] In the current technical solution, from the position of data deduplication, it is divided into source deduplication and destination deduplication. The server interacts with the client, and the client confirms the duplication of data. The same data is not uploaded again. In order to save network bandwidth; in terms of the scope of data deduplication, data deduplication can be performed on the client side, and unified global processing can be adopted on the cloud server side; in terms of data division methods, it can be divided into full file division and static division And based on the division of data content, only one duplicate content is kept, and the duplicate content is replaced by links. In a virtualized environment, data deduplication is also supported t...

AI Technical Summary

Problems solved by technology

[0003] At present, the focus of attention in the cloud environment is often the optimization of the image file storage of the virtual machine. However, in large-scale scenarios, especially those with frequent online snapshots, there is no special optimization for memory snapshots.

However, in the current cloud environment, the virtual machine operating system is often limited to a limited range. Its memory structure layout is similar, and the similarity of memory snapshots is high. Too many memory snapshots will lead to a large amount of duplicate memory snapshot data in the storage.

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