smart backup tool for local and cloud storage backups Duplicacy can back up your files to several cloud storage services with (optional) client-side encryption and the highest level of deduplication, which reduces disk space usage by eliminating storage of duplicate files. Duplicacy only backs up files that have changed and stores each backup as a complete set. You can delete older backups without affecting your current backup sets. The program is built on top of a new idea called Lock-Free Deduplication, which works by relying on the basic file system API to manage deduplicated chunks without using any locks. A two-step fossil collection algorithm is devised to solve the fundamental problem of deleting unreferenced chunks under the lock-free condition, making deletion of old backups possible. While this sounds rather complicated, Duplicacy is very easy to use. There is almost nothing to configure other than your backup schedule and the backup target. The program can store your backup on a local drive, Amazon S3, Dropbox, MS Azure, Google Cloud or and SFTP server of your choice. Other features include email notification on completed backups, include/exclude patterns, support for Volume Shadow Copy, integrated restore option, and more. Since Duplicacy stores complex backup images of your files, you cannot access the individual files directly from your storage drive, you need to use the Restore option in Duplicacy to download or restore your files. Copyright Snapfiles.com

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