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Method and system for efficient migration of a storage object between storage servers based on an ancestry of the storage object in a network storage system
Method and system for efficient migration of a storage object between storage servers based on an ancestry of the storage object in a network storage system
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机译:用于基于网络存储系统中存储对象的祖先在存储服务器之间高效迁移存储对象的方法和系统
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摘要
Embodiments of the present invention provide a method and system, in a network storage system, for efficiently migrating a storage object (vdisk) from a first storage server (source) to a second storage server (destination) using data of a related vdisk at the destination. A related vdisk includes an earlier created vdisk (parent) from which the vdisk to be migrated (child) is generated (cloned). By virtue of the cloned relationship, the parent and child have a portion of data blocks in common. When a parent is available at the destination, only the changed data blocks between the parent and child need to be migrated for efficiently constructing the child at the destination.
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