I'm trying to reduce the amount of storage space used by some of our backups. As part of this, I've reduced the retention period on some from 12 months to 6. However, this has not made any difference to the total space consumed, presumably because backups already created will be retained for 12 months as previously configured.
I'd rather not delete the entire vault and start again, but that seems to be the only option available.
Is there any way of deleting restore points from retention?