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In a distributed file system (DFS), a disaster-tolerant model provides high data security in the data disaster event by geographically isolates the backup data, while the hot-backup model provides high availability when the main server is offline. Therefore, the combined model is widely concerned in multiple fields. However, previous investigations have neglected to the disaster tolerance for open-source...
A geographically isolated disaster-tolerant system for Distributed File System (DFS) is essential for its enhancement in data security. However, the plain disaster tolerant model performs poor quality while a switch happens in hot-backup. In this study, we proposed a Direct Data Fetch (DDF) technology for the hybrid model. The DDF can fetch data directly from the data chunk server while the main server...
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