Backup Exec 2012: Overwrite protection peroid

[loopy005]

Hi all,

having a problem with my weekly duplicate backups to my robotic library and I don't know what I'm doing wrong.

Job configuration:
"Duplicate", Source:"Most recent full backup", Storage: "IBM Tape library", Media Set: "3 weeks".

Media set configuration:
Overwrite protection period: "3 weeks"
Append peroid" Infinite - Allow append"

Each week im replacing the weekly tapes with new ones and associate the new tapes with this mediaset.

So hm, and here's my problem: When the job begoíns to run, it says that no overwritable media can be found. As I understand, the "Allocated Date" begins from the time on  the media is associated with the mediaset. So the overwrite protection is from this time on 3 weeks. So my backups never start...

But how do I have to set up my mediaset? I want that the backup files on tape are protected for at least 3 weeks and can be appendable infinite. So when the tape is full within these 3 weeks, the robotic library uses the next tape. At the moment I associate the tapes withe the mediaset "Scratch Media" and this helps me out at the moment.

Thanks in advance,
Sven 

[loopy005]

Ok nevermind,

I recreated the jobs and the mediaset and it seems to work now.

Thanks 

[Colin_Weaver · Accepted solution]

What you were probably doing wrong was accociating new tapes with the media set when you changed the tapes.

Always put new tapes into the scratch set and let Backup Exec move the tapes to the required media sets during job operation.

[loopy005]

What you were probably doing wrong was accociating new tapes with the media set when you changed the tapes.

Yes, that's correct. Thanks for the help.