Two new functions have been added to the API that perform hotbackups, DB_ENV->backup() and DB_ENV->dbbackup(). DB_ENV->backup() creates a hotbackup of all databases in the specified environment, and DB_ENV->dbbackup() creates a hotbackup of the specified database. The functions DB_ENV->set_backup_callbacks() and DB_ENV->set_backup_config() can be called to customize the behavior of hotbackup. Note that this interface must be used to create a hotbackup on all non-BSD or Unix based systems.
DB_BACKUP_CLEAN
            DB_BACKUP_FILES
            DB_BACKUP_NO_LOGS
            DB_BACKUP_SINGLE_DIR
            DB_BACKUP_UPDATE
            DB_CREATE
            DB_EXCL
            DB_VERB_BACKUP
            DB_CREATE
            DB_EXCL
            DB_BACKUP_WRITE_DIRECT
            DB_BACKUP_READ_COUNT
            DB_BACKUP_READ_SLEEP
            DB_BACKUP_SIZE