Backup account and database - SFTP



Currently I have a site hosted by DreamHost and I need to back up every six hours of my database and send it to DreamHost server backups.

I am doing the backup of my database via a cron to my hosting space (I know it’s wrong), but I want to send it to my backup space. They keep backup for a month and then manually erase.

Is this possible using a procedure Cron?

I have been reviewing the DHSnapshot but I do not entirely clear the operation.