I recently upgraded our media servers (running Windows 2008 R2 OS) from BE2012 to BE15.
When I look at the backup sets, I see a long list of expired backup sets where the "Storage" column is identified as "Unknown." Looking at the Properties for any one of them, I see that the backup set is encrypted which tells me the backup set was written to tape (we only encrypt backup sets when running a duplicate-to-tape job.)
My question is: These backup sets were written first to disk then duplicated, with encryption, to tape and are now expired, why are they not being deleted from the BE database? I looked at the dates on the backup sets and they go as far back as November 2013. We do an annual backup set D2D2T that we retain for 1-year. Upon creating a new annual set, the previously year's set is replaced. How do I get rid of them?
Any help is great appreciated!