With this backup method, only files that were changed or created on the day that the backup is run are copied. The files are not marked as copied, i.e. the archive attribute  remains unchanged.
This option also allows to perform an incremental or differential backup using the 'last modified' date of the files. This is useful when archive attributes are not supported (e.g. some NAS or Linux systems).

A series of incremental backups starts with one full backup. During each following backup, only the files that were changed or have been created since the last (full or incremental) backup will be backed up.

The files are NOT marked as backed up, i.e. the archive attribute  remains unchanged. Whether a file has to be backed up during a certain incremental backup is determined by the modification date of that file.
This option allows you to perform an incremental backup using the 'last modified' date of the files. This is useful when archive attributes are not supported (e.g. some NAS or Linux systems).

A series of differential backups starts with one full backup. During each following backup, only the files that were changed or have been created since the last full backup will be backed up.

The files are NOT marked as copied, i.e. the archive attribute  remains unchanged. Whether a file has to be backed up during a certain differential backup is determined by the modification date of that file.
This option allows you to perform a differential backup using the 'last modified' date of the files. This is useful when archive attributes are not supported (e.g. some NAS or Linux systems).

Windows Task Scheduler
For each backup set, you can choose between Z-Cron  and Windows Task Scheduler for scheduled backups. Select this option if you want to use Windows Task Scheduler.

Max. performance
If activated the backup task will run with the maximum performance. You can deactivate it to automatically slow down the backup task depending on the current system load.
Click the button    to set the maximum cpu usage of the backup task or at which level of system load the task should slow down.

File permissions (NTFS Permissions)
NTFS  compatible backups. Extended file info and attributes are included in the backup. Security settings are copied to NTFS  formatted backup mediums and are also included when restoring files. Path lengths of more than 260 characters are supported.

  An NTFS formatted backup volume is required to include security settings in the backup!

 Empty Directories
This option means that empty directories are included in the backup archive. This is helpful if you want to be able to restore your complete directory structure including empty directories.

 Directory Structures
The 1:1 file copy of files and directories implies the backup of full directory structures. The option is set by the software and cannot be disabled (it is grayed out). Only for synchronization of one single folder may this option be deactivated.

Clear Archive Flag
The archive attribute  of the source files is cleared/deactivated after backup.

Directory Permissions
If this option is selected, the directory access rights are included in the backup.

  Note that this option can lead to problems with backups in a network.

VShadow Copy
 If this option is activated, a Volume Shadow Copy is created for the source drive. This allows copying locked files.

  Z-VSScopy is contained in the Freeware Version of Z-DBackup and is itself freeware for private use. If you want to use Z-VSScopy with the Professional Version of Z-DBackup, you need to purchase a license.

Asynchronous Copy
Dynamically adjusted buffers and asynchronous file transfer between two hard drives can increase the copy speed when large files get copied.
The system load is reduced a little bit.
This option is a good choice when the backup contains larger files.
But this method could reduce the backup speed in case alot of small files should be copied.

Open files: Z-DBackup automatically backs up open files that are not locked by another application.

  Without the module Z-VSScopy , Z-DBackup cannot copy files that are locked by other applications!

Note
With this button, you can add a textnote to a backup set. The notes can also be accessed from the context menu in the main window. A note can be shown as a message on the screen before or after a backup with this backup set!

Default Settings
This button resets the backup set to the default settings.

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