S3QL is a file system that uses something like Google Storage, http://www.aliyun.com/zixun/aggregation/2467.html ">amazon S3 or OpenStack storage devices to store all of the online data. It supports Amazon S3, as well as any SFTP server, and effectively provides a dynamic and infinitely capable hard drive that can be accessed from any computer that has access to the Internet. S3QL provides a standard, full-featured UNIX file system that is conceptually indistinguishable from any local file system. S3QL has additional features such as compression, encryption, duplicate data deletion, tree-like structure and snapshots of invariant patterns, making it particularly suitable for online backup and archiving. The main purpose of S3QL is to provide users with simple and elegant performance as well as flexible features.
S3QL 1.6 This version of FSCK will automatically recover if the temp index already exists (for example, if the previous fsck was interrupted). When this version does not fail the "Baddigest" Error object, only a portion is retrieved from the backend.
Software Information: http://code.google.com/p/s3ql/
Download Address: http://code.google.com/p/s3ql/downloads/detail?name=s3ql-1.6.tar.bz2&can=2&q=