How to create a differential backup

This article shows how to create a differential backup of the given sources to a specified destination using Backup4all. The current method can be extended to other sources and destinations supported by Backup4all.

On this page: How to configure the backup job Backup execution examples
The differential backup type will create a full back up on the first execution, then differentials will be performed, including all new and modified files since the last full backup execution. It will create in destination a new zip file with the backup sources from each source drive.

How to configure the backup job

  1. Open Backup4all
  2. Press New button to open the New Backup Wizard. Type a name for the backup job and select the backup destination. Then press Next
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3. On this page you can add the backup sources by pressing the Add folder and Add files buttons. When ready, press Next

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4. On this page, you can select the backup type. In this example we will use the differential backup type. Press Save->Save.

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Backup execution examples

We will perform several backup executions to see what we get in destination.

  1. As we have sources from C and D drive, after the first backup execution, we get in destination a zip file for each source drive: 1_C.zip and 1_D.zip
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2. For the second backup execution we will add a new folder called “03” in backup sources on D: drive.

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3. After the 2nd backup execution we get in destination: 2_D.zip which is the second backup version, containing only folder “03”.

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4. For the third backup execution we will change an existing source file on C: drive.

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5. After the 3rd backup execution we get in destination: 3_C.zip and 3_D.zip which is the third backup version, containing all new and modified files since the last full: the modified file on C: drive and the “03” folder from D drive.

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Applies to:

Backup4all 5.x, 6.x

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