NeDi Help

System Snapshots

## Introduction

This modules lets you take a snapshot of the current database. This may be very helpful during a network migration for example. It also lets you go back in time and find nodes or network topologies, which changed since...

In addition you could create a snapshot and import a NeDi database from a completely different network for review, without affecting your "real" data.

## Adding

- Type a suffix to identify your snapshot. By default a timestamp is filled in.
- Provide DB admin user (usually root) and password.
- Click add button to copy the current database to the snapshot (might take a while).

## Activating

- The database used in the current session is indicated by .
- Click on in the snapshot list to activate either the main database or a snapshot.
- The logo on the top left is replaced by to remind you, that you're working in a snapshot now. Hover over it to reveal which one.
- Volume and rrdgraphs are turned off as well to avoid any confusion until you select the main database again (usually 'nedi').
- You can manipulate data in a snapshot, but it won't have an effect on the current database, since the discovery keeps using the main database.

## Deleting

- Click on to delete a snapshot (only shown on inactive snapshots).
- After confirmation the snapshot will be deleted and its diskspace freed up.