bup is an open source program written in Python that backs things up. It’s short for “backup”.
It provides an efficient way to backup a system based on the git packfile format, providing fast incremental saves and global deduplication (among and within files, including virtual machine images).
It’s written in Python (with some C parts to make it faster) so it’s easy to extend and maintain.
- Global deduplication (among and within files, including virtual machine images).
- Uses a rolling checksum algorithm (similar to rsync) to split large files into chunks.
- Uses the packfile format from git.
- Writes packfiles directly offering fast incremental saves.
- Can use “par2” redundancy to recover corrupted backups.
- Mount your bup repository as a FUSE filesystem.
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