Interesting question... so time to experiment
1. I created a full backup of a 10 G folder
2. I set the retention to 2 full
3. I created another full backup
4. while watching the destination folder, I created a 3rd full backup
Observation: the first backup disappeared only at the end of the 3rd full backup
Not a definitive (or official) answer but it does look like the cleanup takes place after the backup completes.
Actually that's probably the best idea in case the new backup fails for some reason...
it does (potentially) cause an issue in a space limited destination tho'
JD
1. I created a full backup of a 10 G folder
2. I set the retention to 2 full
3. I created another full backup
4. while watching the destination folder, I created a 3rd full backup
Observation: the first backup disappeared only at the end of the 3rd full backup
Not a definitive (or official) answer but it does look like the cleanup takes place after the backup completes.
Actually that's probably the best idea in case the new backup fails for some reason...
it does (potentially) cause an issue in a space limited destination tho'
JD