Okay, so the value set for retention policy on a backup copy job to rotated drives (on the Target settings section, just under the selected repository, where it says "Restore points to keep") that number is per drive, correct?
I read through that guide, and it seemed a little vague. Here's the section on backup copy jobs:
For backup copy jobs:
3. [For external drives attached to Microsoft Windows servers] Veeam Backup & Replication checks the retention policy set for the job. If some backup files in the backup chain are outdated, Veeam Backup & Replication removes them from the backup chain.
So, it creates a full on the empty drive, then creates incrementals until it hits retention policy (say I set to 3), on the fourth iteration it creates a new incremental, and then point 3 above says since we've gone over the retention policy for the job it "removes them from the backup chain" but what I couldn't determine is if this means it will delete the original full backup (since it is the oldest) and create a new one or merge the oldest incremental with the original full... which now that I'm thinking about it, deleting the full wouldn't really make sense because that would make the rest of the backup chain completely useless, so I'm guessing it does the merge.
Just to put it to bed, is that correct?