DSG Backup 2006 Professional
 
Backup Mode
 

This screen allows you to define how the backup will be performed.

 

Compression:

  • Compress Source into a ZIP file: DSG Backup uses standard zip format to compress data. The main advantages of zip format are: high speed, good compression, compatible with third-party applications.
  • Compress Source into a SQX file: DSG Backup uses SQX archive format to compress data. The SQX archiver is a high performance file archiver. The main advantages of this format are: high compression ratio, 128-bit AES encryption, full support for 64-bit file systems (the size of archives and archive volumes is limited only by the OS).
  • Copy files: An alternative method is to Copy the files to destination. This method is useful if you want to access the archives manually.

Compression options:

  • Compression Quality: There are 5 levels of compression (from no compression to best compression) from which you can choose the one you need. Recommended compression level is Normal.
  • Extension: Extension of the archive. Default value is zip and sqx, but you can change to klb to make difference between DSG Backup archives and other zip or sqx files.

Security:

  • Encrypt archive: Password protection can be added; this will offer a moderate security for compressed archives. Files in zip can be extracted with third party zip managers if the user enters the same password as in DSG Backup.
  • Password: Type the password you want.
  • Re-enter password: Confirm the password by typing again.

 

Backup type: DSG Backup supports the most common backup types

  • Full backup: DSG Backup will backup all files on every backup operation.
  • Incremental backup: DSG Backup will backup only the files that have been changed since the last backup operation.
  • Differential backup: DSG Backup will backup only the files that have been changed since the last full backup operation.

For more informtion, see Running Backup Jobs.

 

An incremental or differential backup will backup only the files that have been changed since the last incremental or full backup operation. DSG Backup offers two methods to detect if a file has been changed or not:

  • Based on date modified: The last date and time when the file was modified. If selected, only files with changed Last Modified property will be added.
  • Based on archive bit: Archive bit file attribute is set or not. If selected, only files with Archive bit file attribute set will be added.

File Options:

  • Full backup - Reset archive bit: If checked, the Archive bit file attribute of all the files that have been successfully backed up will be cleared. This option is useful when there are other programs that use the archive bit to see if the file was modified since the last backup.
  • Incremental backup - Based on date: File modification check based on file Last Modified date.
  • Incremental backup - Based on archive bit: File modification check based on Archive bit file attribute.
  • Incremental backup - Reset archive bit: If checked, the Archive bit file attribute of all the files that have been successfully backed up will be cleared. If Based on archive bit is selected, this box is checked and disabled.
  • Differential backup - Based on date: File modification check based on file Last Modified date.
  • Differential backup - Based on archive bit: File modification check based on Archive bit file attribute.
  • Differential backup - Reset archive bit: If checked, the Archive bit file attribute of all the files that have been successfully backed up will be cleared. If Based on archive bit is selected, this box is unchecked and disabled.
  • Limit number of increments: When increment or differential backup is used, it is possible to automatically switch to full backup after a specific number of increments. If checked the backup job will run X number of times as incremental/differential then perform a new full backup.

DSG Backup 2006 maintains a library which contains a history of backup jobs and the files of each backup run. This catalog contains information on every file in the archive. Users can easily restore any version of the archive with the Restore Wizard. This catalog is mandatory for incremental and differential backups.

The catalog is saved to the backup set target directory, with extension klc. Do not delete this file!

On every backup the program will create a new archive in the target directory with a new unique filename.

The file name of the archive will be: Backup filename + [SUFFIX] + [COUNTER].[EXTENSION].

The Suffix field allows you to define the suffix. The suffix is a combination of variables listed in the Variables dialog.

 

 

Ex.1: Backup filename is mywork_ suffix is DATE_FULL2 then DSG Backup can create the following archives:

  • mywork_2006-01-21.zip
  • mywork_2006-01-22.zip
  • mywork_2006-01-22[2].zip //a counter is used because mywork_2006-01-22.zip already exists
  • mywork_2006-01-22[3].zip
  • mywork_2006-01-23.zip

Ex.2: Backup filename is mywork suffix is empty then DSG Backup can create the following archives:

  • mywork.zip
  • mywork[2].zip
  • mywork[3].zip
  • mywork[4].zip

If version managment is disabled the archive name will always be: Backup filename.[EXTENSION] and if the archive already exists then it will be deleted.

 

Versions:

  • Manage versions: Enables/disables version managment.
  • Format: Defines the suffix format.
  • Delete target folder/archive: Deletes destination files.
  • Delete archives: automatically deletes old archives
  • Keep only last: choose the number of archives to keep
  • Keep for a period of X days: deletes any archive older than X days

Note: Each full backup archive and its subsequent increments are treated as one archive.

Click Next to continue.