What does Transactional Backup Interval mean in the Backup Plan Wizard for Team Foundation Server?

I'm in the process of setting up a backup plan for a Team Foundation Server. I downloaded Power Tools for TFS and I'm using the Backup Plan Wizard that was included in that pack. I am now at the step where I'm supposed to decide how to schedule the backups and I have no idea what to choose for my setup.

I g开发者_运维知识库et what everything means, except Transactional Backup Interval.

I would appreciate suggestions for a good schedule. What I would like to achieve is being able to restore and still look back a few versions, if possible. The minimum backup I would like to have is the latest version.

It might be important to add that I got to choose "Backup retention days" earlier and set that to 30.

The transactional backup interval likely refers to how often transaction logs for your TFS databases are backed up. The schedule you choose will probably depend on how busy your repository is.

At my current client there are six developers, and we share some of the load for source control between VSS and TFS (we're transitioning). Corporate policy says we must backup transaction logs every hour during business hours, and an additional one at midnight. Our local backups are on a four-day retention cycle with off-site backups lasting years.

I would make a decision based on how much work you'd want to lose if your repository was lost and your working copy was destroyed simultaneously (natural disaster?).