DUPLICACY WINDOWS CODE
While the performance wasn't the top-priority design goal, Duplicacy has been shown to outperform other backup tools by a considerable margin, as indicated by the following results obtained from a benchmarking experiment backing up the Linux code base using Duplicacy and 3 other open-source backup tools.ĭuplicacy currently provides the following storage backends: The avoidance of a centralized chunk database not only produces a simpler and less error-prone implementation, but also makes it easier to develop advanced features, such as Asymmetric Encryption for stronger encryption and Erasure Coding for resilient data protection.ĭuplicacy is fast. Unlike other chunk-based backup tools where chunks are grouped into pack files and a chunk database is used to track which chunks are stored inside each pack file, Duplicacy takes a database-less approach where every chunk is saved independently using its hash as the file name to facilitate quick lookups. This feature turns any cloud storage server supporting only a basic set of file operations into a sophisticated deduplication-aware server.
There are 3 core advantages of Duplicacy over any other open-source or commercial backup tools:ĭuplicacy is the only cloud backup tool that allows multiple computers to back up to the same cloud storage, taking advantage of cross-computer deduplication whenever possible, without direct communication among them.
There is a special edition of Duplicacy developed for VMware vSphere (ESXi) named Vertical Backup that can back up virtual machine files on ESXi to local drives, network or cloud storages. There is also a Web GUI frontend built for Windows, macOS, and Linux, available from. This repository hosts source code, design documents, and binary releases of the command line version of Duplicacy. The final draft version is available here for those who don't have IEEE subscriptions.
Our paper explaining the inner workings of Duplicacy has been accepted by IEEE Transactions on Cloud Computing and will appear in a future issue this year. Duplicacy: A lock-free deduplication cloud backup toolĭuplicacy is a new generation cross-platform cloud backup tool based on the idea of Lock-Free Deduplication.
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