Salvador

A peer-to-peer distributed data backup

Rodrigo Araújo and Daniel Almeida

Salvador: A peer-to-peer distributed data backup

Motivation

Modern file hosting services are widely used to store sensitive files.

Salvador: A peer-to-peer distributed data backup

Motivation

Common commercial solutions:

Client-Server Architecture (Cloud-based)

Salvador: A peer-to-peer distributed data backup

Motivation

Common solutions: Client-Server Architecture

Salvador: A peer-to-peer distributed data backup

Motivation

Problems with Client-Server Architecture

Salvador: A peer-to-peer distributed data backup

Motivation

Problems with Client-Server Architecture

Sharing whole copies of the file

Salvador: A peer-to-peer distributed data backup

Motivation

Sharing whole copies of the file

Trusting your data to one single company

Problems with Client-Server Architecture

Salvador: A peer-to-peer distributed data backup

Solution

Enters: Salvador

Salvador: A peer-to-peer distributed data backup

Solution

Backup of files without sharing entire copies of a file

Inspired by known technologies

Enters: Salvador

Salvador: A peer-to-peer distributed data backup

Features

Backup && Restore files

Access only by owner (no sharing)

Semantics inspired by Dropbox

P2P Backup and Restores

Incentive system 

Command line interface

Salvador: A peer-to-peer distributed data backup

Challenges

Many known challenges:

Maintain metadata of files

Peers failure/unavailability

Peers joining the network

File availability

Blocks size

Network load

Block redundancy

Delayed communication

And many unknown challenges

Salvador: A peer-to-peer distributed data backup

Development plan && Architecture

Baby-steps development

Version 1

Version 2

Salvador: A peer-to-peer distributed data backup

Development plan && Architecture

Baby-steps development

Central server for metadata

Distributed clients

No failures

Hybrid P2P

Version 1

Version 2

Salvador: A peer-to-peer distributed data backup

Development plan && Architecture

Baby-steps development

Distributed clients

No failures

Hybrid P2P

Version 1

Version 2

Full P2P

Central server for metadata

Fault tolerant

Salvador: A peer-to-peer distributed data backup

Development plan && Architecture

Version 1

Salvador: A peer-to-peer distributed data backup

Development plan && Architecture

Version 2

Questions?