Compression, encryption, and adaptive subfile backup processing

This topic lists some items to consider if you want to include specific files or groups of files for compression, encryption, and adaptive subfile backup processing during a backup or archive operation.

• You must set the compression option to yes to enable compression processing. If you do not specify the compression option or you set the compression option to no, Tivoli® Storage Manager does not perform compression processing.
• You must set the subfilebackup option to yes to enable include-exclude adaptive subfile backup processing. If you do not specify the subfilebackup option or you set the subfilebackup option to no, Tivoli Storage Manager does not perform adaptive subfile backup processing.
• Tivoli Storage Manager processes exclude.dir and other include-exclude statements first. Tivoli Storage Manager then considers any include.compression, include.encrypt and include.subfile statements. For example, consider the following include-exclude list:

  exclude c:\test\file.txt
  include.compression c:\test\file.txt
  include.encrypt c:\test\file.txt
  include.subfile c:\test\file.txt

  Tivoli Storage Manager examines the exclude c:\test\file.txt statement first and determines that c:\test\file.txt is excluded from backup processing and is, therefore, not a candidate for compression, encryption, or adaptive subfile backup processing.

• Include-exclude compression and encryption processing is valid for backup and archive processing only.
• Include-exclude adaptive subfile backup processing is valid for backup and restore processing only.
• As with other include-exclude statements, you can use the inclexcl option to specify a file that is in Unicode format, which contains include.compression, include.encrypt and include.subfile statements specifying Unicode files. See Inclexcl for more information.