2.  Guy Jacob  Roee Shapiro 044167 – Project A Spring, 2008 INFINI DRIVE  Project Supervisor: Hai Vortman  Lab Chief Engineer: Dr. Ilana David

3. Agenda  Goal  Project Objective  Technologies  InfiniDrive Architecture System Overview Layers Overview  InfiniDrive Demonstration  Future Plans

4. Final Goal  One logic drive with infinite storage space

5. Project Objective  Distributed Disk Application over the Internet.  Physical The physical part of the disk would be made from a number of disk fragments in different machines over the network which have different applications or protocol interfaces. Example for physical disks on the Internet could be: email accounts, ftp sites, peer-to-peer file sharing networks.  Logical The logical part will give the end user one logic disk which will be the size of the fragments sum. The application will give the end user one united interface for the logic disk and will hide all other different interfaces for the different physical disks.

6. Technologies  Application Tier.Net Framework 3.5 (C#)  Database Tier XML Serialization  Development Environment Visual Studio 2008

7. Protocols  SMTP The objective of the Simple Mail Transfer Protocol (SMTP) is to transfer mail reliably and efficiently. When an SMTP client has a message to transmit, it establishes a two- way transmission channel to an SMTP server. The responsibility of an SMTP client is to transfer mail messages to one or more SMTP servers, or report its failure to do so  IMAP The Internet Message Access Protocol, allows a client to access and manipulate electronic mail messages on a server. IMAP4 permits manipulation of mailboxes (remote message folders) in a way that is functionally equivalent to local folders. IMAP also provides the capability for an offline client to resynchronize with the server.

8. System Overview Internet Account Database Connection Physical Logical GUI IMAP SMTP Management IMAP Restore Point Files Database

9. GUI Layer  Show local/remote file system  Show graphical indication for: Transfer Status Connection Status  Provide account management facilities Add or remove accounts Change priority  Provide InfiniDrive facilities Create Restore Point Refresh InfiniDrive Connection Physical Logical GUI Management

10. GUI – Class Diagram  Windows Forms Classes  Service Classes

11. Logical Layer  Manage virtual file system  Initiate Upload and Download flows  Build schemes holding logical limitations: Upload scheme Redundancy scheme Scatter Data scheme  Invoking a controller for each thread Each file is processed in a different thread Connection Physical Logical GUI Management

12. Logical – Class Diagram  Logic Classes  Data Structure Classes  Service Classes

13. Physical Layer  Split files to fit the maximum attachment size Add information to metadata header  Merge parts in to a single file Connection Physical Logical GUI Management

14. Physical – Class Diagram  Logic Classes

15. Connection Layer  Manage clients database  Via IMAP: Retrieve accounts properties Retrieve InfiniDrive files  Via SMTP: Send file parts to one or more accounts Connection Physical Logical GUI Management

16. Connection – Class Diagram  Logic Classes  Data Structure Classes  Service Classes

17. Management Layer  OpenCM (Client Management) Monitor accounts connection and respond to changes  Discovery Discover and monitor InfiniDrive files Build Download Assembly Retrieve Restore Point Connection Physical Logical GUI Management

18. Management – Class Diagram  Logic Classes  Data Structure Classes  Service Classes

19. Management IMAP Upload File - GUI Internet Database Connection Physical Logical GUI IMAP SMTP  Activated by mouse click or drag and drop  Pass folder tree or file to Logical Layer  Update Transfer and Status panes

20. Management IMAP Upload File - Logical Internet Database Connection Physical GUI IMAP SMTP Logical  Check logical conditions (space, connection, …)  Assign account/s  Generate metadata header  Upon successful completion - Update Remote FS and DB

21. Management IMAP Upload File - Physical Internet Database Connection Logical GUI IMAP SMTP Physical  Split files and build message with attachment  Complete metadata header

22. Management IMAP Upload File - Connection Internet Database Physical Logical GUI Connection IMAP SMTP  Send each part to one or more accounts  Send new database files

23. Upload File - Management Internet Database Physical Logical GUI Connection IMAP SMTP Management  Discover upload files  Update InfiniDrive file system  Update GUI

24. InfiniDrive Demonstration Upload Download User Account

25. Documentation  Code documented using C# XML documentation.  This documentation is compiled using SandCastle / DocProject creating user friendly help file

26. Documentation – Preview

27. Future Plans  Add more protocols (today supports imap and smtp)  Add namespace shell extension  Encryption  Beat the Competition

28. Competition - livedrive  http://www.livedrive.com/

29. Competition - Gladinet  http://gladinet.com/

30. The End…  Questions?

31. Upload

32. InfiniDrive – Internal View

33. Download

34. User Account