If true, all files are removed from the target backup directory before the back up is performed.

Specify whether the target directory will be created if it does not already exist.

If true, all ordinary files that might exist in the environment, as well as might exist in the environment's subdirectories, are backed up; otherwise, only files necessary for the proper operation of Berkeley DB are backed up.

If true, log files are not included in the backup. Instead, only *.db files are copied to the target directory.

If true, then regardless of the directory structure used by the source environment, place all back up files in the single target directory. Use this option if absolute path names to your environment directory and the files within that directory are required by your application.

If true, perform an incremental back up, instead of a full back up. When this option is specified, only log files are copied to the target directory.