Backup – Data Compression

This feature allows files to be compressed into a ZIP file in the 'Backup' copy mode.

Features

Tip
Use the profile property 'Connect drives' to shorten long paths with a drive letter and reduce path length.

Specify the name of the ZIP file here. The following placeholders are available:

Placeholder	Description
%P%	Profile name
%S%	Last folder name of the source path
%KW%	Calendar week according to DIN 1355
Format character	Date and time
Environment variables	Windows system variables

Note: Text that should not be interpreted as a placeholder must be enclosed in quotation marks.

Delete existing ZIP file
Deletes a ZIP file with the same name before backup.
Store file permissions
Saves NTFS permissions in the ZIP file.
Back up files from all source folders into a ZIP file
Compresses files from multiple source folders into a single ZIP file.
Store file paths
Defines how paths are stored inside the ZIP file:
- Store full path (Example: Data\Word\Info.doc)
- Store path without source path (Example: Word\Info.doc)
- Store only file name (Example: Info.doc)
In the examples, the source folder C:\Data was used and the file C:\Data\Word\Info.doc was backed up.
Note: When using the Store only file name option, path specifications in filter rules have no effect.

Compression Level
Specify how strongly the files should be compressed. This affects processing time and the final size of the ZIP file. The following levels are available:
- None
- Fast
- Normal (Default)
- Maximum
The higher the compression level, the longer it takes to create the ZIP file — but the file will be smaller. With the None setting, data is stored in the ZIP file without compression.
Compression Method
This option allows you to specify the compression method for the ZIP file. This affects processing time and the final size of the ZIP file. Available file compression methods:
The compression methods Deflate64, BWT, and LZMA are available starting with the AllSync Professional Edition.

Split ZIP file into multiple archives
This option allows the ZIP file to be split into multiple parts with a defined file size. Additionally, the compatibility of the split ZIP files can be specified:
- Standard Compatibility
  The split files can be extracted using common software such as 7-Zip, WinRAR, or WinZip. The ZIP files are saved with the following file extensions:
  - backup.zip
  - backup.z01
  - backup.z02
  - ...
- AllSync ZIP-Dateimanager
  The split files can only be extracted using the ZIP File Manager from AllSync. The ZIP files are saved with the following file extensions:
  - backup.zip
  - backup.z02
  - backup.z03
  - ...

Encrypt ZIP file
Protect your ZIP files with a password. Available methods:
- ZIP 2.0
- AES 256-bit
The AES encryption method is recommended as it offers significantly higher security than the classic ZIP 2.0 method. The AES 256-bit method is available starting with the AllSync Business Edition.

Temporarily create ZIP file in the following folder
With this option, the ZIP file is first created in the specified folder and then moved to the destination folder. You can also set this option in AllSync’s general options for all profiles, see 'Temporary Creation of ZIP Files'.
Notes
- The temporary folder should be located on a local drive with sufficient storage space.
- This option must be enabled to allow updates to files within a ZIP file.
- If the option is not used, the ZIP file is created directly in the destination folder. This can significantly slow down the creation process, especially on network drives.