We have the policy to make a full backup to tape once every month (now once every week while we are still testing). So there will definitely be an overlap between disk and tape jobs.
As you might already know, now you can create a full backup directly on tape, using synthesized full functionality. So, with backup jobs specified in forward forever incremental mode, there is no need to perform active full backup on disks.
if there is anyone who can tell me how to change the retention for all disk jobs at once using Powershell I would be very grateful
Create a post in the corresponding subforum, and I will be glad to assist you with that.
Is there any way to force Veeam into using synthesized full backups to tape instead of transferring the VBK-files?
Initial full backup has to be transferred to tapes. Once it's done, only incremental data should be copied to tape mediums (as long as, source job utilizes forward forever incremental mode). The synthesized full creation is controlled by "schedule"