Backup and Restore Feature in RPI - Design

Introduction

Backup and Restore is the feature developed in regard to WebUI.

The user can Backup the current user settings to the local PC and Restore the same to device when required.

Backup Settings:

• Allows the user to save the current settings
• Settings from database files are backed up in an encrypted format
• Generates a tar file of the encrypted database files
• Saves the tar file to Local PC.

Restore Settings:

• Allows the user to select the backup file with required settings
• Extracts the tar file and Decrypts the containing database files
• Loads backed up settings to device
• Device will be rebooted automatically to apply the settings.

Design Considerations

• Decision Overview

< Describe the system design in broad terms . Consider benefits, costs and schedule and technical risks. Describe how the proposed solution aligns with the enterprise architecture. >

• Other Considerations (DAR)

<Alternative designs considered and why one was chosen>

Architecture

• Layout

           <Architecture Diagram>

• Communication

          <Describe the communication between the sub-systems. (Diagrams may be used to illustrate communications). >

External Interfaces (Input/Output files or data sets)

< Identify input interfaces, function call protocol, and the nature of the data structures passed across the interface between the sub-modules>

< Identify output interfaces, function call protocol, and the nature of the data structures passed across the interface. >

Data Model

<Provide a description of the data model>

Limitations

             < Describe the cases that are identified as problem but unable to report to it due to various factors. Describe the factors >

Future Enhancements

            < Describe how the current design is suitable for future enhancement without completely modifying existing design . >