Chunker

DropBox + BitTorrent + RSync = Chunker

DropBox?

• Sync files between PCs
• With versioning
  • See who changed what, where, and when
  • TODO: Currently only historic metadata is stored, need to build an archiver client which will store old chunks so that old versions can be rebuilt

BitTorrent?

• People downloading the same files will spread the data around
• You can export a read-only snapshot of a shared folder in a .torrent-like format

RSync?

• Chunks are dynamically sized and not owned by any specific file, if you already have a partial match for a download, it can be used.
  • Downloading ubuntu.iso (700MB) + kubuntu.iso (900MB) can be done in 1200MB, because they have ~400MB in common

Anything Else?

• Files with corrupt parts can be healed using other similar files; eg if you have a successfull ubuntu download and a corrupt kubuntu, and the corruption is in the shared area, it can be repaired entirely offline.