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company name:
Egor Egorov
license: Freeware
minimum requirements: No special requirements.
functional limitations:
Bigsync description
Bigsync is an utility to incrementally backup a big file to a slow destination (think network media or a cheap NAS). The most common cases for bigsync are disk images or virtual OSes or encrypted volumes.

Bigsync will read the source file in chunks calculating checksums for each one. It will compare them with previously stored values for the destination file and overwrite changed chunks if checksums differ.

This way we minimize the access to a slow target media which is the whole point of bigsync.

bigsync vs rsync

rsync does kind of the same thing, too. But rsync does read both files to calculate checksums, which slows down the whole process a lot when working with slow media. bigsync only reads source file, and writes only changed blocks to destination, which minimizes load and access to the destination drive.


Download source. make. make install.

Supported OS

For now, bigsync has been successfully used under Mac OS X 10.5 and 10.6 in both 32bit and 64bit. Linux in 64bit.. .
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