I'm looking for the best way(s) to migrate existing backup copies from non-immutable repositories to immutable repositories, without having to wait out the retention period. (which could be several years in some cases). Ideally there would be a way to move backups from one repository to another (this also applies to non-immutable obviously) from within Veeam, but since there is not, how would you go about to moving EXISTING backups and backup copies from non-immutable to immutable?
Especially since I don't want to have to wait out a 7 years retention period for instance.
Just copying the backup copies from the non-immutable repository to the immutable one with sftp or something, rescan and remap, would that work? Probably not

Cheers, Michael