Backup tool utilizing Amazon S3 and SimpleDB. Quillen backs up your important documents or other data to your Amazon S3 and SimpleDB account. Is designed to be a simple command line tool that can be crontabbed and forgotten about. Quillen talks directly to Amazon S3 and SimpleDB without any intermediate servers. You pay for your usage directly to Amazon.

Quillen is designed to be a simple command line tool that can be crontabbed and forgotten about.

When you backup a file or directory, Quillen places those files into a conceptual "snapshot". It is a full snapshot of those files at that point in time. A snapshot can later be restored to your local disk. Give Quillen a try to fully assess its capabilities!

Quillen splits files into chunks of data of variable size. The chunks are determined by their contents, rather than fixed offsets into a file. This enables Quillen to keep data transfer and storage to a minimum since only chunks that have not been seen before will be uploaded. Chunks have an average size of 128K, although they can range from 2K - 5MB. This method of chunking also means that a full backup of a set of files that have already been placed in a snapshot does not result in re-uploading those files. And if the files have changed since they were last backed up, only those chunks that have changed need to be uploaded. The result is a new full snapshot. The full set of files can be restored from that snapshot. This is de-duplication between snapshots.

INSTALLATION
1.Make sure you have Java 1.6 or higher installed on your machine.
2.Expand quillen-0.4.zip, which includes quillen-0.4.jar and all its dependencies.
3.Edit the file called quillen.properties and fill it in with your AWS credentials.
4.Tell Quillen to create the necessary S3 buckets and SimpleDB domains (it will create 2 buckets and 3 domains):
java -jar quillen-0.4.jar -command install 2> quillen.log

The license of this software is Free, you can free download and free use this data backup software.